Catalog / rasch.org
54

SEO audit for rasch.org

Institute for Objective Measurement

other

Health 54/100 (fair) · 50 pages crawled · generated 2026-08-26

Download Markdown report (feed to ChatGPT / Claude / Cursor)
Screenshot of rasch.org
50
pages crawled
31
indexable pages
17
errors
159
warnings
405
notices
0
orphan pages
0
broken links
Category breakdown
CategoryScoreErrorsWarningsNotices
Security 50 17 26 34
Links 73 0 45 0
Meta Description 82 0 30 2
Canonical 83 0 29 0
Duplicate 95 0 8 0
Performance 96 0 6 117
Content 98 0 4 45
Budget 98 0 3 0
Headings 98 0 3 0
Indexability 98 0 3 2
Crawlability 99 0 1 14
Images 99 0 1 1
Agent Readiness 100 0 0 31
Cache 100 0 0 2
Mobile 100 0 0 26
Sitemap 100 0 0 27
Social 100 0 0 62
Structured Data 100 0 0 31
Titles 100 0 0 5
URL 100 0 0 6
Findings

Errors (1 rules)

error Mixed content on HTTPS page

Rule security.mixed_content · Security · 17 occurrence(s)

Warnings (14 rules)

warning Noindex page receives internal links (crawl-budget waste)

Rule budget.noindex_linked · Budget · 3 occurrence(s)

  • http://www.rasch.org/wp-admin/ — this noindex page has 1 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.rasch.org/sample-page/.
  • https://www.rasch.org/2016/11/17/hello-world/?replytocom=1 — this noindex page has 2 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.rasch.org/2016/11/17/hello-world/, https://www.rasch.org/2016/11/17/hello-world/?replytocom=1.
  • https://www.rasch.org/wp-login.php — this noindex page has 6 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.rasch.org/2016/11/17/hello-world/, https://www.rasch.org/sample-page/, https://www.rasch.org/category/uncategorized/.

warning Missing canonical tag

Rule canonical.missing · Canonical · 29 occurrence(s)

warning Thin content (low word count)

Rule content.thin · Content · 4 occurrence(s)

warning Near-duplicate page content

Rule duplicate.near · Duplicate · 5 occurrence(s)

  • http://www.rasch.org/board.htm — near-duplicate of 4 page(s): http://www.rasch.org/confer.htm, http://www.rasch.org/speaker.htm, http://www.rasch.org/reach.htm
  • http://www.rasch.org/confer.htm — near-duplicate of 4 page(s): http://www.rasch.org/board.htm, http://www.rasch.org/speaker.htm, http://www.rasch.org/reach.htm
  • http://www.rasch.org/look.htm — near-duplicate of 4 page(s): http://www.rasch.org/board.htm, http://www.rasch.org/confer.htm, http://www.rasch.org/speaker.htm
  • http://www.rasch.org/reach.htm — near-duplicate of 4 page(s): http://www.rasch.org/board.htm, http://www.rasch.org/confer.htm, http://www.rasch.org/speaker.htm
  • http://www.rasch.org/speaker.htm — near-duplicate of 4 page(s): http://www.rasch.org/board.htm, http://www.rasch.org/confer.htm, http://www.rasch.org/reach.htm

warning Homepage duplicated across protocol/host variants (no redirect)

Rule duplicate.protocol_host · Duplicate · 1 occurrence(s)

  • https://rasch.org/ — https://www.rasch.org/ serves the same homepage content with a 200 and no redirect — Google sees a duplicate. Pick one canonical host/scheme and 301-redirect the others.

warning Duplicate <title> across pages

Rule duplicate.title · Duplicate · 2 occurrence(s)

warning Missing <h1>

Rule h1.missing · Headings · 3 occurrence(s)

warning Content-Type header doesn't match the actual content

Rule headers.content_type_mismatch · Security · 26 occurrence(s)

  • http://www.rasch.org/board.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/confer.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/consult.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/define.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/friendly.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/look.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/mission.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/nine.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/publish.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/rasch.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/reach.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/rmt/index.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/software.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • http://www.rasch.org/speaker.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://rasch.org/ — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://www.rasch.org/books.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://www.rasch.org/memo1.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://www.rasch.org/memo22.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://www.rasch.org/memo24.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://www.rasch.org/memo25.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://www.rasch.org/memo33a.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://www.rasch.org/memo40.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://www.rasch.org/memo41.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://www.rasch.org/memo42.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://www.rasch.org/models.htm — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".

warning Images missing alt text

Rule images.missing_alt · Images · 1 occurrence(s)

warning Page is noindex

Rule index.noindex · Indexability · 3 occurrence(s)

warning Internal link points to a redirect

Rule links.redirect_target · Links · 45 occurrence(s)

warning Missing meta description

Rule meta_desc.missing · Meta Description · 30 occurrence(s)

warning Render-blocking script in <head> (no defer/async)

Rule perf.render_blocking · Performance · 6 occurrence(s)

warning Redirect chain (multiple hops)

Rule redirect.chain · Crawlability · 1 occurrence(s)

  • http://www.rasch.org/wp-admin/ — 2 hops ending at https://www.rasch.org/wp-login.php?redirect_to=https%3A%2F%2Fwww.rasch.org%2Fwp-admin%2F&reauth=1

Notices (30 rules)

notice Heading levels skip a level

Rule agent.heading_skip · Agent Readiness · 4 occurrence(s)

notice No llms.txt for AI agents

Rule agent.llms_txt_missing · Agent Readiness · 1 occurrence(s)

  • https://rasch.org/ — no llms.txt found at the site root — add one so AI agents get a curated site summary

notice No main landmark for AI agents

Rule agent.no_main_landmark · Agent Readiness · 26 occurrence(s)

notice Page served uncached (no-store/private or CDN bypass)

Rule cache.not_cacheable · Cache · 2 occurrence(s)

notice Main text is hard to read (low Flesch Reading Ease)

Rule content.readability_poor · Content · 18 occurrence(s)

  • http://www.rasch.org/board.htm — this page reads as difficult (Flesch Reading Ease 44, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/confer.htm — this page reads as difficult (Flesch Reading Ease 44, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/consult.htm — this page reads as difficult (Flesch Reading Ease 37, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/define.htm — this page reads as difficult (Flesch Reading Ease 38, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/friendly.htm — this page reads as very difficult (Flesch Reading Ease 3, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/look.htm — this page reads as difficult (Flesch Reading Ease 42, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/mission.htm — this page reads as difficult (Flesch Reading Ease 46, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/nine.htm — this page reads as difficult (Flesch Reading Ease 46, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/publish.htm — this page reads as difficult (Flesch Reading Ease 45, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/reach.htm — this page reads as difficult (Flesch Reading Ease 44, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/rmt/index.htm — this page reads as difficult (Flesch Reading Ease 37, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/software.htm — this page reads as difficult (Flesch Reading Ease 38, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • http://www.rasch.org/speaker.htm — this page reads as difficult (Flesch Reading Ease 42, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://rasch.org/ — this page reads as difficult (Flesch Reading Ease 45, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://www.rasch.org/memo22.htm — this page reads as difficult (Flesch Reading Ease 43, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://www.rasch.org/memo24.htm — this page reads as difficult (Flesch Reading Ease 49, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://www.rasch.org/memo41.htm — this page reads as difficult (Flesch Reading Ease 44, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://www.rasch.org/models.htm — this page reads as difficult (Flesch Reading Ease 48, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.

notice Title tag and meta description are identical

Rule content.title_meta_same · Meta Description · 1 occurrence(s)

notice noarchive directive (blocks cached copy)

Rule directives.noarchive · Indexability · 2 occurrence(s)

  • http://www.rasch.org/wp-admin/ — a noarchive directive is present — it blocks a cached copy of the page. Google retired cached links in 2024 so the impact is small, but confirm it's intentional.
  • https://www.rasch.org/wp-login.php — a noarchive directive is present — it blocks a cached copy of the page. Google retired cached links in 2024 so the impact is small, but confirm it's intentional.

notice Missing <!DOCTYPE html> (quirks-mode rendering risk)

Rule encoding.doctype_missing · Content · 26 occurrence(s)

notice Missing html lang attribute

Rule i18n.lang_missing · Mobile · 26 occurrence(s)

notice Image filename is generic/auto-generated (missed image-search signal)

Rule images.generic_filename · Images · 1 occurrence(s)

  • https://www.rasch.org/memo1.htm — 2 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.

notice Likely hero image lacks fetchpriority=high

Rule images.hero_no_fetchpriority · Performance · 19 occurrence(s)

  • http://www.rasch.org/board.htm — the likely hero/LCP image (iom.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • http://www.rasch.org/confer.htm — the likely hero/LCP image (iom.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • http://www.rasch.org/consult.htm — the likely hero/LCP image (iom.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • http://www.rasch.org/define.htm — the likely hero/LCP image (measure.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • http://www.rasch.org/look.htm — the likely hero/LCP image (iom.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • http://www.rasch.org/mission.htm — the likely hero/LCP image (iom.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • http://www.rasch.org/nine.htm — the likely hero/LCP image (iom.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • http://www.rasch.org/publish.htm — the likely hero/LCP image (iom.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • http://www.rasch.org/rasch.htm — the likely hero/LCP image (rasch.gif) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • http://www.rasch.org/reach.htm — the likely hero/LCP image (iom.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • http://www.rasch.org/speaker.htm — the likely hero/LCP image (iom.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://rasch.org/ — the likely hero/LCP image (iom.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://www.rasch.org/books.htm — the likely hero/LCP image (iom.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://www.rasch.org/memo1.htm — the likely hero/LCP image (bdw.gif) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://www.rasch.org/memo24.htm — the likely hero/LCP image (memo240.gif) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://www.rasch.org/memo33a.htm — the likely hero/LCP image (ben.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://www.rasch.org/memo40.htm — the likely hero/LCP image (cat2.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://www.rasch.org/memo42.htm — the likely hero/LCP image (42fig1.gif) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://www.rasch.org/memo43.htm — the likely hero/LCP image (43fig1.gif) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.

notice Legacy <meta name=keywords> tag present (Google ignores it)

Rule meta.keywords_present · Content · 1 occurrence(s)

notice Meta description too short

Rule meta_desc.too_short · Meta Description · 1 occurrence(s)

notice Missing Open Graph tags

Rule og.missing · Social · 31 occurrence(s)

notice Large DOM (over 1500 elements) slows rendering & interaction

Rule perf.dom_size_large · Performance · 1 occurrence(s)

  • http://www.rasch.org/rasch.htm — the page has 1991 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.

notice Legacy image format (jpg/png/gif) with no next-gen fallback

Rule perf.images_legacy_format · Performance · 19 occurrence(s)

  • http://www.rasch.org/board.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • http://www.rasch.org/confer.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • http://www.rasch.org/consult.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • http://www.rasch.org/define.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • http://www.rasch.org/look.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • http://www.rasch.org/mission.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • http://www.rasch.org/nine.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • http://www.rasch.org/publish.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • http://www.rasch.org/rasch.htm — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • http://www.rasch.org/reach.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • http://www.rasch.org/speaker.htm — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://rasch.org/ — 4 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://www.rasch.org/books.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://www.rasch.org/memo1.htm — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://www.rasch.org/memo24.htm — 14 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://www.rasch.org/memo33a.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://www.rasch.org/memo40.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://www.rasch.org/memo42.htm — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://www.rasch.org/memo43.htm — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.

notice Large HTML document

Rule perf.large_html · Performance · 8 occurrence(s)

notice No ETag header (no conditional GET for unchanged pages)

Rule perf.no_etag · Performance · 34 occurrence(s)

  • http://www.rasch.org/board.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/confer.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/consult.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/define.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/friendly.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/look.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/mission.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/nine.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/publish.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/rasch.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/reach.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/rmt/index.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/software.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/speaker.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • http://www.rasch.org/wp-admin/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://rasch.org/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://www.rasch.org/2016/11/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://www.rasch.org/2016/11/17/hello-world/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://www.rasch.org/2016/11/17/hello-world/?replytocom=1 — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://www.rasch.org/author/rasch_usbwrc/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://www.rasch.org/books.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://www.rasch.org/category/uncategorized/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://www.rasch.org/models.htm — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://www.rasch.org/sample-page/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://www.rasch.org/wp-login.php — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.

notice No Last-Modified header (no conditional GET for unchanged pages)

Rule perf.no_last_modified · Performance · 34 occurrence(s)

  • http://www.rasch.org/board.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/confer.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/consult.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/define.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/friendly.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/look.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/mission.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/nine.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/publish.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/rasch.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/reach.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/rmt/index.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/software.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/speaker.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • http://www.rasch.org/wp-admin/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://rasch.org/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.rasch.org/2016/11/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.rasch.org/2016/11/17/hello-world/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.rasch.org/2016/11/17/hello-world/?replytocom=1 — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.rasch.org/author/rasch_usbwrc/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.rasch.org/books.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.rasch.org/category/uncategorized/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.rasch.org/models.htm — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.rasch.org/sample-page/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.rasch.org/wp-login.php — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.

notice Slow server response

Rule perf.slow_response · Performance · 2 occurrence(s)

notice URL redirects to another URL

Rule redirect.single · Crawlability · 14 occurrence(s)

notice No structured data detected

Rule schema.none · Structured Data · 31 occurrence(s)

notice Missing recommended security headers

Rule security.missing_headers · Security · 34 occurrence(s)

notice Indexable page not listed in sitemap

Rule sitemap.orphan_not_listed · Sitemap · 27 occurrence(s)

notice Title tag is identical to the H1 (missed keyword variation)

Rule title.same_as_h1 · Titles · 4 occurrence(s)

notice Title is very short

Rule title.too_short · Titles · 1 occurrence(s)

notice Missing Twitter Card tag

Rule twitter.missing · Social · 31 occurrence(s)

notice URL is very long

Rule url.too_long · URL · 1 occurrence(s)

notice Underscores in URL path (prefer hyphens)

Rule url.underscores · URL · 3 occurrence(s)

notice Uppercase letters in URL path

Rule url.uppercase · URL · 2 occurrence(s)

Pages (showing 50 of 50)
URLStatusIndexableWordsIn-links
http://www.rasch.org/rasch.htm
Rasch Measurement: Research Papers, Explorations and Explanations		 200 yes 5917 27
https://www.rasch.org/models.htm
Probabilistic Models: Rasch book		 200 yes 647 26
https://www.rasch.org/books.htm
Rasch Measurement Books		 200 yes 879 5
http://www.rasch.org/software.htm
Rasch Measurement Analysis Software Directory		 200 yes 1306 3
https://www.rasch.org/memo1.htm
MESA Memo 1: Sample-free Measurement		 200 yes 6981 1
https://www.rasch.org/memo22.htm
MESA Memo 22: Detecting Item Bias		 200 yes 7226 1
https://www.rasch.org/memo24.htm
Rasch Model as Additive Conjoint Measurement		 200 yes 6748 1
https://www.rasch.org/memo25.htm
MESA Memo 25: Interpretation of Item Bias		 200 yes 3326 1
https://www.rasch.org/memo33a.htm
MESA Memo 33a: Measurement in Social Science		 200 yes 3975 1
https://www.rasch.org/memo40.htm
MESA Memo 40: UCAT CAT Program		 200 yes 9699 1
https://www.rasch.org/memo41.htm
MESA Memo 41: Educational Measurement		 200 yes 5147 1
https://www.rasch.org/memo42.htm
MESA Memo 42: Solving Measurement Problems		 200 yes 10332 1
https://www.rasch.org/memo43.htm
MESA Memo 43: Item Banks		 200 yes 7351 1
https://www.rasch.org/2016/11/
November 2016 – Just another WordPress site		 200 yes 79 6
https://www.rasch.org/2016/11/17/hello-world/
Hello world! – Just another WordPress site		 200 yes 138 6
https://www.rasch.org/category/uncategorized/
Uncategorized – Just another WordPress site		 200 yes 78 6
https://www.rasch.org/wp-login.php
Log In ‹ Just another WordPress site — WordPress		 200 no 20 6
https://www.rasch.org/author/rasch_usbwrc/
rasch_usbwrc – Just another WordPress site		 200 yes 78 5
https://www.rasch.org/2016/11/17/hello-world/?replytocom=1
Hello world! – Just another WordPress site		 200 no 142 2
http://www.rasch.org/consult.htm
Rasch Consultants		 200 yes 1306 2
http://www.rasch.org/rmt/index.htm
Rasch Measurement Transactions Index		 200 yes 1801 2
http://www.rasch.org/wp-admin/
Log In ‹ Just another WordPress site — WordPress		 200 no 20 1
http://www.rasch.org/board.htm
IOM Governing Bodies		 200 yes 618 1
http://www.rasch.org/confer.htm
IOM Conferences and Workshops		 200 yes 573 1
http://www.rasch.org/define.htm
Definition of Objective Measurement: IOM		 200 yes 972 1
http://www.rasch.org/friendly.htm
Rasch-friendly Journals		 200 yes 1402 1
http://www.rasch.org/look.htm
IOM Other Places to Look		 200 yes 645 1
http://www.rasch.org/mission.htm
IOM Mission		 200 yes 628 1
http://www.rasch.org/nine.htm
Chapters of the IOM		 200 yes 683 1
http://www.rasch.org/publish.htm
Publications of the Institute for Objective Measurement		 200 yes 771 1
http://www.rasch.org/reach.htm
Institute for Objective Measurement		 200 yes 580 1
http://www.rasch.org/speaker.htm
IOM Speakers Bureau		 200 yes 641 1
https://rasch.org/
Institute for Objective Measurement		 200 yes 724 0
https://www.rasch.org/sample-page/
Sample Page – Just another WordPress site		 200 yes 204 0
https://rasch.org/BTD_RSA/pdf%20%5Bpublisher%5D/Best%20Test%20Design.pdf 200 no 0 1
https://www.rasch.org/comments/feed/ 200 no 0 6
https://www.rasch.org/feed/ 200 no 0 6
https://www.rasch.org/memo19.pdf 200 no 0 1
https://www.rasch.org/memo20b.pdf 200 no 0 1
https://www.rasch.org/memo21.pdf 200 no 0 1
https://www.rasch.org/memo23c.pdf 200 no 0 1
https://www.rasch.org/memo26.pdf 200 no 0 1
https://www.rasch.org/memo29.pdf 200 no 0 1
https://www.rasch.org/memo32.pdf 200 no 0 1
https://www.rasch.org/memo33b.pdf 200 no 0 1
https://www.rasch.org/memo34.pdf 200 no 0 1
https://www.rasch.org/memo35.pdf 200 no 0 1
https://www.rasch.org/memo38.pdf 200 no 0 1
https://www.rasch.org/memo39.pdf 200 no 0 1
https://www.rasch.org/memo89_Diseno%20Optimode%20Pruebas%20%28Best%20Test%20Design%20spanish%20translation%202019%29.pdf 200 no 0 25

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