memory.loc.gov - robtex.com
memory.loc.gov
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700::6811:63a🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700::6812:4052🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.17.6.58Cloudflare104.17.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.18.64.82Cloudflare104.18.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.17.6.58, 104.18.64.82 | ||||||
| IPv6 | 2606:4700::6811:63a, 2606:4700::6812:4052 | ||||||
loc.gov
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2606:4700::6811:63a🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700::6812:4052🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.17.6.58Cloudflare104.17.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.18.64.82Cloudflare104.18.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | alice.ns.cloudflare.com ⭐ | ||||||
| NS | kevin.ns.cloudflare.com | ||||||
| MX | mxa-00026101.gslb.gpphosted.com ⭐ | ||||||
| MX | mxb-00026101.gslb.gpphosted.com ⭐ | ||||||
| TXT | 538fe1481176c669d55eb1a37227bd0a3ccfb28d6a2838429e59f504dc3070d3 | ||||||
| TXT | 62QSYa/kfNXdxXnLjT9/ZOyvqed/KSL3dFy+b7K7EFS08xeEY8vGX0IT9BCOCvkgLa16BcrmaQhTg... | ||||||
| TXT | MS=ms90737861 | ||||||
| TXT | ZA=NzrYbQCQ4geLYL//TYHmJA== | ||||||
| TXT | adobe-idp-site-verification=02f02861-90f5-4cf5-9922-c67c80a7bf26 | ||||||
| TXT | f05abc6d-1dc0-451c-91ba-e65ef91027a5 | ||||||
| TXT | google-site-verification=D5cqNFQ7z5rT2z4OXeYRmxrMc80omDUqEGtsNFY9N_g | ||||||
| TXT | google-site-verification=o0tsBc2NuJSImRS3MromAcC8lwoaWNp5LFZlmJXB0-0 | ||||||
| TXT | v=spf1 include:spf1.loc.gov include:spf2.loc.gov include:spf-00026101.gpphost... | ||||||
| TXT | webexdomainverification.NQCL=b1bef083-e011-4dcf-b1f7-42204b82128e | ||||||
| TXT | yTrNm8yrlLjz94UZ1A2UUPz7Gv5UfCIypoGH1HmXjNs= | ||||||
| HTTPS | HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.17.6.58, 104.18.64.82 | ||||||
| IPv6 | 2606:4700::6811:63a, 2606:4700::6812:4052 | ||||||
| SOA | alice.ns.cloudflare.comdns@cloudflare.com serial=2399006542 | ||||||
rank #195 globally
rank #5 in the tld
This domain name "loc.gov" refers to the official website of the Library of Congress, which is the largest library in the world, with millions of books, recordings, photographs, maps and manuscripts in its collections. The Library of Congress is the main research arm of the U.S. Congress and the home of the U.S. Copyright Office.WOT: SAFE (94/100)
📈 Tranco rank: #589
Library of Congress
The Library of Congress is the largest library in the world and the oldest federal cultural institution in the United States, founded in 1800. It serves as the research arm of the U.S. Congress and is the de facto national library, housing over 170 million items including books, manuscripts, photographs, maps, audio recordings, and films.
Key Services
- Digital Collections — Millions of digitized items freely accessible online, including historical photographs, maps, audio recordings, and manuscripts
- Congress.gov — Official tracking of U.S. federal legislation and congressional activities
- Research Centers — Specialized reading rooms and "Ask a Librarian" consultation services
- National Film Registry — Preservation of culturally significant American films
- Educational Programs — Resources for teachers, students, and researchers
Infrastructure
| Type | Details | |
|---|---|---|
| CDN/DNS | Cloudflare (alice.ns.cloudflare.com, kevin.ns.cloudflare.com) | |
| IPv4 | 104.17.6.58, 104.18.64.82 | |
| IPv6 | 2606:4700::6811:63a, 2606:4700::6812:4052 | |
| Mail Servers | mx22.loc.gov, mx41.loc.gov, mx42.loc.gov (140.147.x.x range) | |
| Security | DNSSEC enabled with signed DS record | |
| Ranking | ~#194 globally, #6 within .gov TLD |
Subdomains
www.memory.loc.gov |
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
●A104.17.6.582026-02-15 → 2026-03-19 · 3 obs
○ 2020-05-03 22:32:28
● 2026-02-15 01:36:08
● 2026-03-19 19:08:34
● 2026-02-15 01:36:08
● 2026-03-19 19:08:34
●A104.18.64.822026-02-15 → 2026-03-19 · 3 obs
○ 2020-05-03 22:32:28
● 2026-02-15 01:36:08
● 2026-03-19 19:08:34
● 2026-02-15 01:36:08
● 2026-03-19 19:08:34
○A140.147.249.52015-08-13 → 2016-12-22 · 4 obs
● 2015-08-13 18:05:34
● 2016-12-22 01:58:58
○ 2020-05-03 22:32:28
○ 2026-03-19 19:08:34
● 2016-12-22 01:58:58
○ 2020-05-03 22:32:28
○ 2026-03-19 19:08:34
●A2606:4700::6811:63a2026-02-15 → 2026-03-19 · 3 obs
○ 2020-05-03 22:32:28
● 2026-02-15 01:36:08
● 2026-03-19 19:08:34
● 2026-02-15 01:36:08
● 2026-03-19 19:08:34
●A2606:4700::6812:40522026-02-15 → 2026-03-19 · 3 obs
○ 2020-05-03 22:32:28
● 2026-02-15 01:36:08
● 2026-03-19 19:08:34
● 2026-02-15 01:36:08
● 2026-03-19 19:08:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| gov | b.ns.gov, a.ns.gov, d.ns.gov, c.ns.gov | - |
| loc.gov | alice.ns.cloudflare.com, kevin.ns.cloudflare.com | - |
✅ Authoritative Response
Server: 173.245.59.191
NS records: alice.ns.cloudflare.com, kevin.ns.cloudflare.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 292ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.17.6.58, 104.18.64.82 |
| AAAA | 2 | 2606:4700::6811:63a, 2606:4700::6812:4052 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h2"] |
Analysis
Hierarchy
memory.loc.gov is a parent of www.memory.loc.gov.
IP Addresses
memory.loc.gov points to four IP numbers: 2606:4700::6811:63a, 2606:4700::6812:4052, 104.17.6.58 and 104.18.64.82.
Other host names, for instance crowd.loc.gov, rs3.loc.gov, webdmep.loc.gov, cip.loc.gov and lcweb2.loc.gov share IP numbers with memory.loc.gov.