loc.gov

Library of Congress

Who runs Library of Congress, what it tracks and what it costs, and the 20 closest national library alternatives.

Who’s behind it: Not stated
Online since: Unknown
Trackers
Prices: No pricing page
Last price change: –
Closest alternative: Digital Public Library of America

Measured from Library of Congress’s own pages, the Internet Archive and public records. Hover a dotted value for its source and date.

Visit Library of Congress

01 · Who’s behind it

Who runs Library of Congress

Library of Congress loc.gov

The world's largest library. View historic photos, maps, books and more. Contact experts for help with research. Plan a visit. Home of U.S. Copyright Office.

Wikidata: (de facto) national library of the United States of America

Company: No imprint we could read
Online since: Not in the Internet Archive
Audience: In English

02 · Privacy

What Library of Congress tracks

What the homepage loads before you accept or decline cookies. A cookie banner should hold most of it back until you agree, and a tag manager can load more that we don’t see.

tracker that follows visitors

6 of the 14 alternatives below have fewer, 2 have more.

Privacy-friendly alternatives →

Cookie banner: None found
US company: 1 tool

Tag manager

Loads further tracking scripts, which we can’t always see.
- Adobe Experience Platform TagsUS

03 · Alternatives

Alternatives to Library of Congress

Fewer trackers than Library of Congress No ad trackers Registered in the EU Free plan Only in English

None of the 60 sites closest to Library of Congress match these filters. We read imprints and pricing pages once a week, so more sites qualify as we get to them.

04 · History

What changed

Price and policy history →

No changes yet. Each new crawl is compared with the last one, and what Library of Congress adds, drops or rewrites shows up here.

05 · Details

How we measure

Alternatives are matched by what sites actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Trackers and the rest of the stack come from the homepage’s code and DNS records.

The full technology stack and search numbers · 12 technologies

Neighbours: k = 60
Sites searched: 9,222
Vector: 384-d
Query: 142 ms

Built with

JavaScript libraries: jQuery asset https://www.loc.gov/static/ui2/dist/js/jquery-1.8.2.js
CSS & UI: Font Awesome asset https://www.loc.gov/static/ui2/dist/fontawesome/css/all.css
Tag managers: Adobe Experience Platform Tags asset https://assets.adobedtm.com/dac62e20b491e735c6b56e64c39134d8ee93f9cf/satelliteLib-6b47f83…
CDN: Cloudflare header cf-ray: a562fb162c2783bd-HAM
Email hosting: Microsoft 365 TXT MS=ms90737861
DNS hosting: Cloudflare DNS NS kevin.ns.cloudflare.com
SaaS tools (verified in DNS): Adobe TXT adobe-idp-site-verification=02f02861-90f5-4cf5-9922-c67c80a7bf26
Atlassian TXT atlassian-domain-verification=nWInaz9qwixZxg4Ef5K7jmsSKDAlta15azD9kOF…
Bing Webmaster Tools meta msvalidate.01: 5C89FB9D99590AB2F55BD95C3A59BD81
Google Search Console TXT google-site-verification=60lAEjrt1Mhjzxp92lROrlGsYFR9alVBZVncUMaus7Q
OpenAI TXT openai-domain-verification=dv-30BwSHGyfCP4Av8FZs9IAyOJ
Webex TXT webexdomainverification.NQCL=b1bef083-e011-4dcf-b1f7-42204b82128e

Sitemaps

What competitors use

Across the 20 closest sites.