What powers loc.gov?
Last seen Jun 2026 · 84 technologies across 31 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| hcalendar | #3 | 266,600 |
| abraham lincoln presidency | #2 | 44,600 |
| jan 6th | #2 | 26,700 |
| pride month | #2 | 17,800 |
| woody guthrie | #4 | 13,200 |
| scientist edison | #3 | 13,100 |
| edison thomas alva | #3 | 13,100 |
| native americans in america | #4 | 12,200 |
| civil rights movement | #2 | 12,000 |
| civil rights era | #2 | 12,000 |
| african american rights | #2 | 12,000 |
| andrew jackson presidency | #5 | 11,500 |
| thomas edison | #4 | 10,900 |
| abraham lincoln | #8 | 10,800 |
| queen elizabeth | #5 | 10,600 |
| rosapark | #6 | 10,200 |
| when did ww1 start | #2 | 9,800 |
| world war 2 | #5 | 9,400 |
| t edison | #4 | 8,900 |
| thomas a edison | #4 | 8,900 |
| thomas a edison | #4 | 8,900 |
| ufo | #5 | 8,700 |
| siberia and russia | #3 | 8,000 |
| world war one dates | #2 | 8,000 |
| first world war dates | #2 | 7,400 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 69% desktop
- 29% phone
- 2% tablet
United States
India
Germany
United Kingdom
France
Italy
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
9.06 / 10 · ranked #259 of all domains
35,916 referring domains · OpenPageRank
Search traffic
1,940,600 est. monthly organic visits (US)
291,331 keywords in Google's top 30
Core Web Vitals
| LCP | 1.6 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- CDN: Cloudflare
- Weight: 0.5 MB · 32 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| lcm.loc.gov | 27 |
| anywhere-adventures.labs.loc.gov | 18 |
| blogs.loc.gov | 17 |
| catalog.loc.gov | 17 |
| nlscatalog.loc.gov | 17 |
| data.labs.loc.gov | 16 |
| labs.loc.gov | 16 |
| lcweb2.loc.gov | 16 |
| loc.gov | 16 |
| news-navigator.labs.loc.gov | 16 |
| newsroom.loc.gov | 16 |
| research-appointments.loc.gov | 16 |
| www.loc.gov | 16 |
| guides.loc.gov | 15 |
| ask.loc.gov | 14 |
| findingaids.loc.gov | 13 |
| id.loc.gov | 13 |
| authorities.loc.gov | 12 |
| citizen-dj.labs.loc.gov | 12 |
| crowd.loc.gov | 12 |
| geo.loc.gov | 12 |
| search.catalog.loc.gov | 12 |
| search.nlscatalog.loc.gov | 12 |
| chroniclingamerica.loc.gov | 10 |
Full technology history →
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Recent changes
- dropped IIS Mar 2026
- dropped Windows Server Mar 2026
- dropped Chart.js Feb 2026
- detected IIS Sep 2025
- detected Windows Server Sep 2025