gnu.org Website Health Report
The GNU Operating System and the Free Software Movement
Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.
Analyzed 6/2/2026, 1:43:46 PM · https://gnu.org
Summary
As of June 2, 2026, gnu.org scores 48/100 overall (grade D), ranking #797 of 995 websites in the E:LAB STUDIO database — the top 81%. Its strongest area is Technical (75/100); its weakest is Schema (10/100).
Its AI-search visibility (AEO) score is 45/100 — a measure of how citable the page is to AI answer engines like ChatGPT and Perplexity. No JSON-LD structured data was detected — the single highest-impact gap for AI search. Top fixes: Organization schema, FAQ schema, Structured heading (single clear H1).
Compared with the database average (61/100 overall), gnu.org scores 13 points lower.
How to improve
16Based on this report, here are the highest-impact fixes across SEO, AI-search visibility, speed and security:
Want us to fix these for you?
Request a site fixSEO
- ✓Title tag present10/10
- ✓Meta description present10/10
- ✗H1 heading present0/10
- ✗Canonical URL set0/10
- ✗Open Graph tags present0/10
- ✓sitemap.xml found10/10
- ✓robots.txt found10/10
- ✓Images have alt text10/10
- ✓Internal links present10/10
- ✗Structured data present0/10
AI Visibility (AEO)
- ✗Organization schema0/15
- ✗FAQ schema0/15
- ✓Substantive, descriptive content (heuristic)15/15
- ✓Company/brand identity (About page or Org schema)10/10
- ✓Author / publish date present10/10
- ✗Structured heading (single clear H1)0/10
- ✓External source/citation links10/10
- ✗Industry/location info0/10
- ✗Price/product info0/5
Schema
- ✗Any JSON-LD present0/20
- ✗Organization0/15
- ✗FAQPage0/15
- ✗LocalBusiness0/15
- ✗Article or Product0/15
- ✗Breadcrumb0/10
- ✓Author/date structured10/10
Technical
- ✓robots.txt found15/15
- ✓sitemap.xml found15/15
- ✗Canonical URL set0/15
- ✓Mobile viewport meta15/15
- ✓Language attribute set10/10
- ✗Open Graph tags0/10
- ✓Title length is optimal10/10
- ✓Description length is optimal10/10
Want a higher score than this site?
Run a free health check on your own site and get a prioritized fix list.
Check my siteWhat clients said
10 reviews, 5.0 average, 4 of them from repeat clients.
Left on Kmong, Korea's largest freelance marketplace. Shown in the original Korean, word for word — translating someone else's review would be rewriting it.
FAQ about gnu.org
What is gnu.org's SEO score?
gnu.org scores 60/100 for on-page SEO and 48/100 overall (grade D) — rank #797 of 995 sites in the E:LAB STUDIO database.
Is gnu.org visible to AI search engines like ChatGPT?
Its AI-visibility score is 45/100 — middling. Highest-impact improvements: Organization schema, FAQ schema.
What technology does gnu.org use?
No specific framework or CMS was detectable from its public HTML.
What should gnu.org fix first?
Based on this report: Organization schema, FAQ schema. The full prioritized list is in the "How to improve" section below.
When was this report generated?
On June 2, 2026, from publicly fetched HTML. Anyone can re-run the analysis for free to refresh it.
Compare with similar sites
Free website checkers
Add this score badge to your site
Copy the snippet to show a live E:LAB STUDIO badge that links back to this report.