loc.gov SEO & AI Search Report
Home | Library of Congress
The Library of Congress is the nation's oldest federal cultural institution, and it serves as the research arm of Congress. It is also the largest library in the world, with more than 162 million items. The collections include books, sound recordings, motion pictures, photographs, maps, and manuscripts.
Analyzed 6/2/2026, 1:44:17 PM · https://loc.gov
Summary
As of June 2, 2026, loc.gov scores 50/100 overall (grade D), ranking #606 of 992 websites in the E:LAB STUDIO database — the top 62%. Its strongest area is SEO (78/100); its weakest is Schema (0/100).
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, Author / publish date present.
Compared with the database average (53/100 overall), loc.gov scores 3 points lower.
SEO
- ✓Title tag present10/10
- ✓Meta description present10/10
- ✓H1 heading present10/10
- ✗Canonical URL set0/10
- ✓Open Graph tags present10/10
- ✓sitemap.xml found10/10
- ✓robots.txt found10/10
- ◐Images have alt text8/10
- ✓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 present0/10
- ✓Structured heading (single clear H1)10/10
- ✓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 structured0/10
Technical
- ✓robots.txt found15/15
- ✓sitemap.xml found15/15
- ✗Canonical URL set0/15
- ✓Mobile viewport meta15/15
- ✓Language attribute set10/10
- ✓Open Graph tags10/10
- ✓Title length is optimal10/10
- ✗Description length is optimal0/10
How to improve
Based on this report, here are the highest-impact fixes for SEO and AI-search visibility:
- →Canonical URL set: Add <link rel="canonical"> to prevent duplicate-content issues.
- →Images have alt text: Add descriptive alt text to your images.
- →Structured data present: Add JSON-LD structured data (Organization, FAQ, etc.).
- →Organization schema: Add Organization JSON-LD so AI engines understand your brand.
- →FAQ schema: Add FAQPage JSON-LD — AI answer engines frequently cite FAQs.
- →Author / publish date present: Show an author and publish/updated date for credibility.
- →Industry/location info: State your industry and location (LocalBusiness schema helps).
- →Price/product info: Add Product/Offer details with pricing where relevant.
- →Any JSON-LD present: Add JSON-LD structured data to your pages.
- →Organization: Add Organization schema.
- →FAQPage: Add FAQPage schema.
- →LocalBusiness: Add LocalBusiness schema with address and hours.
- →Article or Product: Add Article or Product schema as appropriate.
- →Breadcrumb: Add BreadcrumbList schema for clearer navigation.
- →Author/date structured: Mark up author and dates in your schema.
- →Description length is optimal: Aim for ~50–160 characters (longer is fine for CJK).
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What is loc.gov's SEO score?
loc.gov scores 78/100 for on-page SEO and 50/100 overall (grade D) — rank #606 of 992 sites in the E:LAB STUDIO database.
Is loc.gov 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 loc.gov use?
No specific framework or CMS was detectable from its public HTML.
What should loc.gov 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.
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