Catalog / jannisarndt.com
52

SEO audit for jannisarndt.com

Jannis Arndt

corporateNext.js

Health 52/100 (fair) · 9 pages crawled · generated 2026-08-26

Download Markdown report (feed to ChatGPT / Claude / Cursor)

Hello, I’m Jannis, 17, from Germany. At bttr.sh I build software and code solutions that help companies optimize their workforce and improve operations. I have four years of experience and have worked…

Screenshot of jannisarndt.com
9
pages crawled
7
indexable pages
4
errors
21
warnings
92
notices
0
orphan pages
0
broken links
Category breakdown
CategoryScoreErrorsWarningsNotices
Crawlability 78 2 0 0
Sitemap 78 2 0 0
Performance 77 0 7 18
Canonical 83 0 5 6
Content 90 0 3 15
Agent Readiness 93 0 2 10
Indexability 93 0 2 0
Duplicate 97 0 1 0
Robots 97 0 1 0
Headings 100 0 0 2
Images 100 0 0 4
Links 100 0 0 4
Meta Description 100 0 0 7
Security 100 0 0 9
Social 100 0 0 7
Structured Data 100 0 0 1
Titles 100 0 0 9
Findings

Errors (2 rules)

error Non-200 URL listed in sitemap

Rule sitemap.not_200 · Sitemap · 2 occurrence(s)

error Client error (4xx) response

Rule status.4xx · Crawlability · 2 occurrence(s)

Warnings (7 rules)

warning Control has no accessible name

Rule agent.control_no_name · Agent Readiness · 2 occurrence(s)

warning Interior page canonicalizes to the homepage

Rule canonical.points_to_homepage · Canonical · 5 occurrence(s)

  • https://jannisarndt.com/imprint — this interior page canonicalizes to the homepage (https://jannisarndt.com/) — Google will treat the homepage as authoritative and drop this page from search. Point the canonical at the page's own URL.
  • https://jannisarndt.com/projects/kirchheim-freizeit — this interior page canonicalizes to the homepage (https://jannisarndt.com/) — Google will treat the homepage as authoritative and drop this page from search. Point the canonical at the page's own URL.
  • https://jannisarndt.com/projects/limitless-subscription-dashboard — this interior page canonicalizes to the homepage (https://jannisarndt.com/) — Google will treat the homepage as authoritative and drop this page from search. Point the canonical at the page's own URL.
  • https://jannisarndt.com/projects/run-pal — this interior page canonicalizes to the homepage (https://jannisarndt.com/) — Google will treat the homepage as authoritative and drop this page from search. Point the canonical at the page's own URL.
  • https://jannisarndt.com/projects/tickio-autopinger — this interior page canonicalizes to the homepage (https://jannisarndt.com/) — Google will treat the homepage as authoritative and drop this page from search. Point the canonical at the page's own URL.

warning Thin content (low word count)

Rule content.thin · Content · 3 occurrence(s)

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

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

  • https://jannisarndt.com/ — https://www.jannisarndt.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 Hero/LCP image is lazy-loaded (loading=lazy delays LCP)

Rule images.no_lazy_lcp_candidate · Performance · 7 occurrence(s)

  • https://jannisarndt.com/ — the likely hero/LCP image (bttr-black.svg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.
  • https://jannisarndt.com/imprint — the likely hero/LCP image (bttr-black.svg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.
  • https://jannisarndt.com/projects/kirchheim-freizeit — the likely hero/LCP image (bttr-black.svg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.
  • https://jannisarndt.com/projects/limitless-subscription-dashboard — the likely hero/LCP image (bttr-black.svg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.
  • https://jannisarndt.com/projects/run-pal — the likely hero/LCP image (bttr-black.svg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.
  • https://jannisarndt.com/projects/tickio-autopinger — the likely hero/LCP image (bttr-black.svg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.
  • https://www.jannisarndt.com/ — the likely hero/LCP image (bttr-black.svg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.

warning Page is noindex

Rule index.noindex · Indexability · 2 occurrence(s)

warning robots.txt blocks CSS/JS the pages need to render

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

  • https://jannisarndt.com/ — robots.txt Disallow blocks render-critical CSS/JS under: /_next/static/chunks/, /_next/static/chunks/app/, /_next/static/chunks/app/imprint/, /_next/static/chunks/app/projects/[slug]/, /_next/static/css/ — Google's renderer can't fetch these, so the affected pages may render blank or thin. Allow the asset path(s) for Googlebot.

Notices (19 rules)

notice Heading levels skip a level

Rule agent.heading_skip · Agent Readiness · 2 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 · 7 occurrence(s)

notice Canonical points to a different URL

Rule canonical.non_self · Canonical · 6 occurrence(s)

notice Low text-to-HTML ratio

Rule content.low_ratio · Content · 3 occurrence(s)

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

Rule content.readability_poor · Content · 5 occurrence(s)

  • https://jannisarndt.com/ — 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://jannisarndt.com/imprint — 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://jannisarndt.com/projects/limitless-subscription-dashboard — 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://jannisarndt.com/projects/tickio-autopinger — 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.
  • https://www.jannisarndt.com/ — 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.

notice Multiple <h1> elements

Rule h1.multiple · Headings · 2 occurrence(s)

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

Rule images.missing_dimensions · Images · 4 occurrence(s)

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

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

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

Rule meta.keywords_present · Content · 7 occurrence(s)

notice Meta description too long

Rule meta_desc.too_long · Meta Description · 7 occurrence(s)

notice Missing Open Graph tags

Rule og.missing · Social · 7 occurrence(s)

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

Rule perf.images_legacy_format · Performance · 4 occurrence(s)

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

Rule perf.no_etag · Performance · 7 occurrence(s)

  • https://jannisarndt.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://jannisarndt.com/imprint — 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://jannisarndt.com/projects/kirchheim-freizeit — 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://jannisarndt.com/projects/limitless-subscription-dashboard — 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://jannisarndt.com/projects/run-pal — 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://jannisarndt.com/projects/tickio-autopinger — 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.jannisarndt.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.

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

Rule perf.no_last_modified · Performance · 7 occurrence(s)

  • https://jannisarndt.com/ — 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://jannisarndt.com/imprint — 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://jannisarndt.com/projects/kirchheim-freizeit — 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://jannisarndt.com/projects/limitless-subscription-dashboard — 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://jannisarndt.com/projects/run-pal — 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://jannisarndt.com/projects/tickio-autopinger — 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.jannisarndt.com/ — 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 Deep page has no BreadcrumbList structured data

Rule schema.breadcrumb_missing · Structured Data · 1 occurrence(s)

notice Missing recommended security headers

Rule security.missing_headers · Security · 9 occurrence(s)

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

Rule title.same_as_h1 · Titles · 2 occurrence(s)

notice Title is very short

Rule title.too_short · Titles · 7 occurrence(s)

Pages (showing 9 of 9)
URLStatusIndexableWordsIn-links
https://www.jannisarndt.com/
Jannis Arndt		 200 yes 125 2
https://jannisarndt.com/
Jannis Arndt		 200 yes 125 8
https://jannisarndt.com/imprint
Jannis Arndt		 200 yes 138 8
https://jannisarndt.com/projects/kirchheim-freizeit
Jannis Arndt		 200 yes 373 1
https://jannisarndt.com/projects/limitless-subscription-dashboard
Jannis Arndt		 200 yes 302 1
https://jannisarndt.com/projects/run-pal
Jannis Arndt		 200 yes 249 1
https://jannisarndt.com/projects/tickio-autopinger
Jannis Arndt		 200 yes 480 1
https://jannisarndt.com/de
Jannis Arndt		 404 no 31 0
https://jannisarndt.com/de/imprint
Jannis Arndt		 404 no 31 0

Audit your own site — free

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

Scan your site →