Catalog / islandbiodiversity.com
54

SEO audit for islandbiodiversity.com

Island Biodiversity

other

Health 54/100 (fair) · 35 pages crawled · generated 2026-08-26

Download Markdown report (feed to ChatGPT / Claude / Cursor)
Screenshot of islandbiodiversity.com
35
pages crawled
30
indexable pages
10
errors
145
warnings
378
notices
0
orphan pages
5
broken links
Category breakdown
CategoryScoreErrorsWarningsNotices
Links 86 5 0 20
Crawlability 91 3 0 0
Security 69 2 30 33
Canonical 74 0 30 0
Meta Description 74 0 30 0
Agent Readiness 86 0 16 48
Images 89 0 13 20
Mobile 89 0 13 30
Duplicate 94 0 7 0
Content 97 0 4 40
Headings 98 0 2 1
Performance 100 0 0 87
Robots 100 0 0 1
Social 100 0 0 60
Structured Data 100 0 0 30
Titles 100 0 0 5
URL 100 0 0 3
Findings

Errors (3 rules)

error Broken internal link (target 4xx/5xx)

Rule links.broken_internal · Links · 5 occurrence(s)

error Mixed content on HTTPS page

Rule security.mixed_content · Security · 2 occurrence(s)

error Client error (4xx) response

Rule status.4xx · Crawlability · 3 occurrence(s)

Warnings (11 rules)

warning Control has no accessible name

Rule agent.control_no_name · Agent Readiness · 16 occurrence(s)

warning Missing canonical tag

Rule canonical.missing · Canonical · 30 occurrence(s)

warning Thin content (low word count)

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

warning Duplicate page content

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

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

Rule duplicate.protocol_host · Duplicate · 3 occurrence(s)

  • https://islandbiodiversity.com/ — http://islandbiodiversity.com/ 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.
  • https://islandbiodiversity.com/ — http://www.islandbiodiversity.com/ 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.
  • https://islandbiodiversity.com/ — https://www.islandbiodiversity.com/ 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 · 2 occurrence(s)

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

Rule headers.content_type_mismatch · Security · 30 occurrence(s)

  • https://islandbiodiversity.com/ — 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://islandbiodiversity.com/Partulacons.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://islandbiodiversity.com/bat.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://islandbiodiversity.com/birds.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://islandbiodiversity.com/crampton.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://islandbiodiversity.com/euglandina.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://islandbiodiversity.com/expedition.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://islandbiodiversity.com/faunaflora.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://islandbiodiversity.com/invertebrates.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://islandbiodiversity.com/jg.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://islandbiodiversity.com/monographs.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://islandbiodiversity.com/natpark.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://islandbiodiversity.com/npts.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://islandbiodiversity.com/partula.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://islandbiodiversity.com/partula1.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://islandbiodiversity.com/partulapages.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://islandbiodiversity.com/pbib.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://islandbiodiversity.com/phelsuma.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://islandbiodiversity.com/plants.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://islandbiodiversity.com/reports.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://islandbiodiversity.com/seychelles.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://islandbiodiversity.com/silhouette.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://islandbiodiversity.com/terrapin.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://islandbiodiversity.com/tortoise.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://islandbiodiversity.com/wildlife-art.org/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".

warning Images missing alt text

Rule images.missing_alt · Images · 13 occurrence(s)

warning Missing meta description

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

warning Missing viewport meta tag

Rule mobile.viewport_missing · Mobile · 13 occurrence(s)

Notices (24 rules)

notice Heading levels skip a level

Rule agent.heading_skip · Agent Readiness · 17 occurrence(s)

notice No llms.txt for AI agents

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

notice No main landmark for AI agents

Rule agent.no_main_landmark · Agent Readiness · 30 occurrence(s)

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

Rule content.readability_poor · Content · 26 occurrence(s)

  • https://islandbiodiversity.com/ — this page reads as very difficult (Flesch Reading Ease 28, 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://islandbiodiversity.com/Partulacons.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://islandbiodiversity.com/bat.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.
  • https://islandbiodiversity.com/birds.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://islandbiodiversity.com/crampton.htm — this page reads as very difficult (Flesch Reading Ease 28, 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://islandbiodiversity.com/euglandina.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://islandbiodiversity.com/expedition.htm — this page reads as very difficult (Flesch Reading Ease 17, 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://islandbiodiversity.com/faunaflora.htm — this page reads as very difficult (Flesch Reading Ease 8, 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://islandbiodiversity.com/invertebrates.htm — this page reads as very difficult (Flesch Reading Ease 18, 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://islandbiodiversity.com/jg.htm — this page reads as very difficult (Flesch Reading Ease 20, 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://islandbiodiversity.com/monographs.htm — this page reads as very difficult (Flesch Reading Ease 23, 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://islandbiodiversity.com/natpark.htm — this page reads as difficult (Flesch Reading Ease 33, 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://islandbiodiversity.com/npts.htm — this page reads as very difficult (Flesch Reading Ease 26, 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://islandbiodiversity.com/partula.htm — this page reads as difficult (Flesch Reading Ease 32, 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://islandbiodiversity.com/partula1.htm — this page reads as difficult (Flesch Reading Ease 39, 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://islandbiodiversity.com/partulaecol.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://islandbiodiversity.com/partulapages.htm — this page reads as very difficult (Flesch Reading Ease 14, 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://islandbiodiversity.com/partulastatus.htm — this page reads as very 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://islandbiodiversity.com/partulatax.htm — this page reads as very difficult (Flesch Reading Ease 16, 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://islandbiodiversity.com/phelsuma.htm — this page reads as very difficult (Flesch Reading Ease 28, 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://islandbiodiversity.com/plants.htm — this page reads as very difficult (Flesch Reading Ease 4, 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://islandbiodiversity.com/seychelles.htm — this page reads as difficult (Flesch Reading Ease 34, 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://islandbiodiversity.com/silhouette.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.
  • https://islandbiodiversity.com/terrapin.htm — this page reads as difficult (Flesch Reading Ease 40, 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://islandbiodiversity.com/tortoise.htm — this page reads as very difficult (Flesch Reading Ease 25, 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 No character encoding declared (meta charset or Content-Type)

Rule encoding.charset_missing · Content · 13 occurrence(s)

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

Rule encoding.doctype_missing · Content · 1 occurrence(s)

notice Multiple <h1> elements

Rule h1.multiple · Headings · 1 occurrence(s)

notice Missing html lang attribute

Rule i18n.lang_missing · Mobile · 30 occurrence(s)

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

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

  • https://islandbiodiversity.com/Partulacons.htm — 1 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 · 28 occurrence(s)

  • https://islandbiodiversity.com/Partulacons.htm — the likely hero/LCP image (vittata.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://islandbiodiversity.com/bat.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/birds.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/crampton.htm — the likely hero/LCP image (turgida.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://islandbiodiversity.com/euglandina.htm — the likely hero/LCP image (vittata.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://islandbiodiversity.com/expedition.htm — the likely hero/LCP image (turgida.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://islandbiodiversity.com/faunaflora.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/invertebrates.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/jg.htm — the likely hero/LCP image (turgida.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://islandbiodiversity.com/monographs.htm — the likely hero/LCP image (turgida.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://islandbiodiversity.com/natpark.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/npts.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/partula.htm — the likely hero/LCP image (vittata.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://islandbiodiversity.com/partula1.htm — the likely hero/LCP image (vittata.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://islandbiodiversity.com/partulapages.htm — the likely hero/LCP image (vittata.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://islandbiodiversity.com/partulastatus.htm — the likely hero/LCP image (vittata.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://islandbiodiversity.com/pbib.htm — the likely hero/LCP image (vittata.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://islandbiodiversity.com/phelsuma.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/plants.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/reports.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/seychelles.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/silhouette.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/terrapin.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/tortoise.htm — the likely hero/LCP image (arnoldi.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://islandbiodiversity.com/wildlife-art.org/index.htm — the likely hero/LCP image (scops.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.

notice Images without width/height (layout shift / CLS)

Rule images.missing_dimensions · Images · 19 occurrence(s)

notice Internal link has no anchor text / accessible name

Rule links.no_anchor_text · Links · 16 occurrence(s)

  • https://islandbiodiversity.com/bat.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/birds.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/crampton.htm — 3 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/expedition.htm — 3 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/faunaflora.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/invertebrates.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/jg.htm — 3 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/natpark.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/npts.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/phelsuma.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/plants.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/reports.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/seychelles.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/silhouette.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/terrapin.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
  • https://islandbiodiversity.com/tortoise.htm — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.

notice Page has only one internal inlink (fragile crawl path)

Rule links.single_inlink · Links · 4 occurrence(s)

notice Missing Open Graph tags

Rule og.missing · Social · 30 occurrence(s)

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

Rule perf.images_legacy_format · Performance · 28 occurrence(s)

  • https://islandbiodiversity.com/Partulacons.htm — 9 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://islandbiodiversity.com/bat.htm — 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://islandbiodiversity.com/birds.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://islandbiodiversity.com/crampton.htm — 10 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://islandbiodiversity.com/euglandina.htm — 9 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://islandbiodiversity.com/expedition.htm — 5 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://islandbiodiversity.com/faunaflora.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://islandbiodiversity.com/invertebrates.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://islandbiodiversity.com/jg.htm — 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://islandbiodiversity.com/monographs.htm — 12 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://islandbiodiversity.com/natpark.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://islandbiodiversity.com/npts.htm — 6 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://islandbiodiversity.com/partula.htm — 7 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://islandbiodiversity.com/partula1.htm — 9 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://islandbiodiversity.com/partulapages.htm — 7 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://islandbiodiversity.com/partulastatus.htm — 7 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://islandbiodiversity.com/pbib.htm — 7 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://islandbiodiversity.com/phelsuma.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://islandbiodiversity.com/plants.htm — 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://islandbiodiversity.com/reports.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://islandbiodiversity.com/seychelles.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://islandbiodiversity.com/silhouette.htm — 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://islandbiodiversity.com/terrapin.htm — 5 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://islandbiodiversity.com/tortoise.htm — 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://islandbiodiversity.com/wildlife-art.org/index.htm — 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.

notice Large HTML document

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

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

Rule perf.no_etag · Performance · 30 occurrence(s)

  • https://islandbiodiversity.com/ — 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://islandbiodiversity.com/Partulacons.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://islandbiodiversity.com/bat.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://islandbiodiversity.com/birds.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://islandbiodiversity.com/crampton.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://islandbiodiversity.com/euglandina.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://islandbiodiversity.com/expedition.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://islandbiodiversity.com/faunaflora.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://islandbiodiversity.com/invertebrates.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://islandbiodiversity.com/jg.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://islandbiodiversity.com/monographs.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://islandbiodiversity.com/natpark.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://islandbiodiversity.com/npts.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://islandbiodiversity.com/partula.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://islandbiodiversity.com/partula1.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://islandbiodiversity.com/partulapages.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://islandbiodiversity.com/pbib.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://islandbiodiversity.com/phelsuma.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://islandbiodiversity.com/plants.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://islandbiodiversity.com/reports.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://islandbiodiversity.com/seychelles.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://islandbiodiversity.com/silhouette.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://islandbiodiversity.com/terrapin.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://islandbiodiversity.com/tortoise.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://islandbiodiversity.com/wildlife-art.org/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.

notice robots.txt missing (root returns 404/none)

Rule robots.txt_missing · Robots · 1 occurrence(s)

  • https://islandbiodiversity.com/ — robots.txt did not return a 200 at the site root — a healthy site should serve one (declare your sitemap and confirm the host serves root files)

notice No structured data detected

Rule schema.none · Structured Data · 30 occurrence(s)

notice Missing recommended security headers

Rule security.missing_headers · Security · 33 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 · 30 occurrence(s)

notice Uppercase letters in URL path

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

Pages (showing 35 of 35)
URLStatusIndexableWordsIn-links
https://islandbiodiversity.com/jg.htm
Justin Gerlach: discovering species, conservation and teaching		 200 yes 888 27
https://islandbiodiversity.com/partulapages.htm
The Partula pages		 200 yes 315 15
https://islandbiodiversity.com/faunaflora.htm
Seychelles biodiversity		 200 yes 229 13
https://islandbiodiversity.com/phelsuma.htm
Phelsuma journal		 200 yes 5068 13
https://islandbiodiversity.com/seychelles.htm
Seychelles islands		 200 yes 136 13
https://islandbiodiversity.com/expedition.htm
Biodiversity Assessments		 200 yes 748 7
https://islandbiodiversity.com/bat.htm
Seychelles sheath-tailed bat		 200 yes 451 7
https://islandbiodiversity.com/Partulacons.htm
Partula conservation		 200 yes 465 10
https://islandbiodiversity.com/euglandina.htm
Euglandina rosea		 200 yes 994 10
https://islandbiodiversity.com/index.htm
Island Biodiversity		 200 yes 388 9
https://islandbiodiversity.com/partula.htm
Partula snails		 200 yes 438 4
https://islandbiodiversity.com/npts.htm
Seychelles conservation		 200 yes 847 3
https://islandbiodiversity.com/silhouette.htm
Silhouette island		 200 yes 737 6
https://islandbiodiversity.com/tortoise.htm
Seychelles giant tortoises		 200 yes 387 4
https://islandbiodiversity.com/Partula2017.htm
2017 Partula expedition		 200 yes 2318 2
https://islandbiodiversity.com/monographs.htm
Seychelles fauna monographs		 200 yes 175 3
https://islandbiodiversity.com/crampton.htm
Partula - icons of evolution		 200 yes 857 6
https://islandbiodiversity.com/plants.htm
Seychelles plants		 200 yes 467 4
https://islandbiodiversity.com/invertebrates.htm
Seychelles invertebrates		 200 yes 448 3
https://islandbiodiversity.com/partulastatus.htm
The current status of Partula snails		 200 yes 705 4
https://islandbiodiversity.com/partulaecol.htm
Partula ecology		 200 yes 369 3
https://islandbiodiversity.com/partulatax.htm
Partula snail species		 200 yes 156 3
https://islandbiodiversity.com/birds.htm
Seychelles birds		 200 yes 462 3
https://islandbiodiversity.com/partula1.htm
Captain Cook's snail		 200 yes 420 2
https://islandbiodiversity.com/pbib.htm
Partula biblography		 200 yes 7865 1
https://islandbiodiversity.com/natpark.htm
Silhouette National Park		 200 yes 450 2
https://islandbiodiversity.com/reports.htm
Seychelles conservation and research reports		 200 yes 69 1
https://islandbiodiversity.com/terrapin.htm
Seychelles terrapins		 200 yes 798 1
https://islandbiodiversity.com/wildlife-art.org/index.htm
Ron Gerlach Seychelles artist. Watercolours, batik, natural history books		 200 yes 207 1
https://islandbiodiversity.com/
Island Biodiversity		 200 yes 388 0
https://islandbiodiversity.com/Synonymy.pdf 200 no 0 2
https://islandbiodiversity.com/crampton.htm%22
404 Not Found		 404 no 30 1
https://islandbiodiversity.com/profiles.htm
404 Not Found		 404 no 30 2
https://islandbiodiversity.com/report.pdf 200 no 0 2
https://islandbiodiversity.com/swn.htm
404 Not Found		 404 no 30 2

Audit your own site — free

157 checks, internal PageRank, render-diff. No signup, results in ~30s.

Scan your site →