65
SEO audit for mars-earth.com
Solar System Planets | Habitable Planets
Health 65/100 (fair) · 5 pages crawled · generated 2026-08-26
Download Markdown report (feed to ChatGPT / Claude / Cursor)Siblings Mars and Earth. Everything in any aspects about Mars and Earth.
5
pages crawled
5
indexable pages
0
errors
33
warnings
45
notices
0
orphan pages
0
broken links
Category breakdown
| Category | Score | Errors | Warnings | Notices |
|---|---|---|---|---|
| Agent Readiness | 70 | 0 | 5 | 6 |
| Canonical | 70 | 0 | 5 | 0 |
| Duplicate | 70 | 0 | 5 | 2 |
| Headings | 70 | 0 | 5 | 0 |
| Images | 70 | 0 | 5 | 5 |
| Security | 70 | 0 | 5 | 2 |
| Links | 82 | 0 | 3 | 0 |
| Crawlability | 100 | 0 | 0 | 1 |
| Meta Description | 100 | 0 | 0 | 3 |
| Performance | 100 | 0 | 0 | 10 |
| Robots | 100 | 0 | 0 | 1 |
| Social | 100 | 0 | 0 | 10 |
| Structured Data | 100 | 0 | 0 | 5 |
Findings
Warnings (9 rules)
warning Control has no accessible name
Rule agent.control_no_name · Agent Readiness · 5 occurrence(s)
- http://www.mars-earth.com/ — 2 button/link(s) with no text or aria-label — an agent can't target them
- http://www.mars-earth.com/earth.html — 1 button/link(s) with no text or aria-label — an agent can't target them
- http://www.mars-earth.com/games.html — 1 button/link(s) with no text or aria-label — an agent can't target them
- http://www.mars-earth.com/index.html — 2 button/link(s) with no text or aria-label — an agent can't target them
- http://www.mars-earth.com/mars.html — 1 button/link(s) with no text or aria-label — an agent can't target them
warning Missing canonical tag
Rule canonical.missing · Canonical · 5 occurrence(s)
warning Duplicate page content
Rule duplicate.content · Duplicate · 2 occurrence(s)
- http://www.mars-earth.com/ — content shared by 2 pages: http://www.mars-earth.com/index.html
- http://www.mars-earth.com/index.html — content shared by 2 pages: http://www.mars-earth.com/
warning Homepage duplicated across protocol/host variants (no redirect)
Rule duplicate.protocol_host · Duplicate · 1 occurrence(s)
- http://www.mars-earth.com/ — https://www.mars-earth.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)
- http://www.mars-earth.com/ — title shared by 2 pages: http://www.mars-earth.com/index.html
- http://www.mars-earth.com/index.html — title shared by 2 pages: http://www.mars-earth.com/
warning Missing <h1>
Rule h1.missing · Headings · 5 occurrence(s)
warning Content-Type header doesn't match the actual content
Rule headers.content_type_mismatch · Security · 5 occurrence(s)
- http://www.mars-earth.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".
- http://www.mars-earth.com/earth.html — 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.mars-earth.com/games.html — 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.mars-earth.com/index.html — 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.mars-earth.com/mars.html — 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 · 5 occurrence(s)
- http://www.mars-earth.com/ — 1 of 2 images missing alt
- http://www.mars-earth.com/earth.html — 2 of 2 images missing alt
- http://www.mars-earth.com/games.html — 4 of 4 images missing alt
- http://www.mars-earth.com/index.html — 1 of 2 images missing alt
- http://www.mars-earth.com/mars.html — 2 of 2 images missing alt
warning Internal link points to a redirect
Rule links.redirect_target · Links · 3 occurrence(s)
- http://www.mars-earth.com/earth.html — http://www.mars-earth.com/index.html → http://www.mars-earth.com/
- http://www.mars-earth.com/games.html — http://www.mars-earth.com/index.html → http://www.mars-earth.com/
- http://www.mars-earth.com/mars.html — http://www.mars-earth.com/index.html → http://www.mars-earth.com/
Notices (13 rules)
notice No llms.txt for AI agents
Rule agent.llms_txt_missing · Agent Readiness · 1 occurrence(s)
- http://www.mars-earth.com/ — 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 · 5 occurrence(s)
- http://www.mars-earth.com/ — add a <main> element (or role=main) around the primary content
- http://www.mars-earth.com/earth.html — add a <main> element (or role=main) around the primary content
- http://www.mars-earth.com/games.html — add a <main> element (or role=main) around the primary content
- http://www.mars-earth.com/index.html — add a <main> element (or role=main) around the primary content
- http://www.mars-earth.com/mars.html — add a <main> element (or role=main) around the primary content
notice Duplicate meta description across pages
Rule duplicate.meta_desc · Duplicate · 2 occurrence(s)
- http://www.mars-earth.com/ — meta description shared by 2 pages: http://www.mars-earth.com/index.html
- http://www.mars-earth.com/index.html — meta description shared by 2 pages: http://www.mars-earth.com/
notice Likely hero image lacks fetchpriority=high
Rule images.hero_no_fetchpriority · Performance · 5 occurrence(s)
- http://www.mars-earth.com/ — the likely hero/LCP image (profile.png) 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.mars-earth.com/earth.html — the likely hero/LCP image (earth.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.mars-earth.com/games.html — the likely hero/LCP image (doom.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.mars-earth.com/index.html — the likely hero/LCP image (profile.png) 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.mars-earth.com/mars.html — the likely hero/LCP image (mars.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 · 5 occurrence(s)
- http://www.mars-earth.com/ — 2 of 2 images without width/height
- http://www.mars-earth.com/earth.html — 2 of 2 images without width/height
- http://www.mars-earth.com/games.html — 4 of 4 images without width/height
- http://www.mars-earth.com/index.html — 2 of 2 images without width/height
- http://www.mars-earth.com/mars.html — 2 of 2 images without width/height
notice Meta description too short
Rule meta_desc.too_short · Meta Description · 3 occurrence(s)
- http://www.mars-earth.com/earth.html — 20 chars
- http://www.mars-earth.com/games.html — 25 chars
- http://www.mars-earth.com/mars.html — 47 chars
notice Missing Open Graph tags
Rule og.missing · Social · 5 occurrence(s)
- http://www.mars-earth.com/ — og:title, og:description, og:image
- http://www.mars-earth.com/earth.html — og:title, og:description, og:image
- http://www.mars-earth.com/games.html — og:title, og:description, og:image
- http://www.mars-earth.com/index.html — og:title, og:description, og:image
- http://www.mars-earth.com/mars.html — og:title, og:description, og:image
notice Legacy image format (jpg/png/gif) with no next-gen fallback
Rule perf.images_legacy_format · Performance · 5 occurrence(s)
- http://www.mars-earth.com/ — 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.
- http://www.mars-earth.com/earth.html — 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.
- http://www.mars-earth.com/games.html — 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.
- http://www.mars-earth.com/index.html — 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.
- http://www.mars-earth.com/mars.html — 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.
notice URL redirects to another URL
Rule redirect.single · Crawlability · 1 occurrence(s)
- http://www.mars-earth.com/index.html — redirects to http://www.mars-earth.com/
notice robots.txt missing (root returns 404/none)
Rule robots.txt_missing · Robots · 1 occurrence(s)
- http://www.mars-earth.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 · 5 occurrence(s)
notice target=_blank link without rel=noopener (tab-napping)
Rule security.unsafe_cross_origin_links · Security · 2 occurrence(s)
- http://www.mars-earth.com/ — 1 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- http://www.mars-earth.com/index.html — 1 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
notice Missing Twitter Card tag
Rule twitter.missing · Social · 5 occurrence(s)
Pages (showing 5 of 5)
| URL | Status | Indexable | Words | In-links |
|---|---|---|---|---|
| http://www.mars-earth.com/games.html Mars And Earth Games |
200 | yes | 1670 | 5 |
| http://www.mars-earth.com/earth.html Earth - The Blue Planet |
200 | yes | 1647 | 4 |
| http://www.mars-earth.com/mars.html Mars - The Red Planet |
200 | yes | 1629 | 4 |
| http://www.mars-earth.com/index.html Solar System Planets | Habitable Planets |
200 | yes | 1938 | 3 |
| http://www.mars-earth.com/ Solar System Planets | Habitable Planets |
200 | yes | 1938 | 0 |
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