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Domain Intelligence Report

medlineplus.gov

Full ownership history report — $29 at AboutUsCompare
Gathering intelligence... (12/12)
DNS
WHOIS
Security
Email
DNSSEC
Threats
Deliverability
SSL/TLS
HTTP
Tech Stack
Subdomains
Archive
Safe
no SPF
no attacks or spoofing
Up
HTTP 200
reachable and responding
Right
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Outline
WHOIS
get.gov · registered 26 years ago · expires Sep 15, 2027
DNS
4 A · 3 MX · 3 NS · 4 PTR · 8 AAAA
SSL/TLS
Amazon · TLSv1.3 · expires in 77d · 10 SANs
Email Auth
SPF ✗ · DKIM ✗ · DMARC ✓ (p=reject)
DNSSEC
signed · valid chain of trust
HTTP
1 redirect → 200 · HSTS ✓ · CSP ✓ · X-Frame ✓ · Nosniff ✓
Security
B (145/205) · 1 critical · 2 high
Threats
risk: none
Deliverability
75% B (30/40 points) · 0 MX · 0 IPs · 4 issue(s)
Subdomains
0 found · 111 answered (1 timed out)
Web Archive
first snapshot 2000-04-07 · 26y archived
DNS Recordschecked 1d ago
Details
4 A · 3 MX · 3 NS · 4 PTR · 8 AAAA · SOA couldn't be checked
WHOISchecked 1d ago
Details
get.gov
Registered 26 years ago
Expires Sep 15, 2027
Renewal history →
Then vs Nownew
Details
Same organisation as in 2013.
“MedLinePlus.gov Health Information from the National Library of Medicine.” — AboutUs, 2013
Now: Health · maintained
AI-judged Sep 30, 2026: likely, not verified
SSL/TLSchecked 1d ago
Details
Valid certificate
Issuer: Amazon
Protocol: TLSv1.3
Expires in 77 days
10 SAN(s)
Securitychecked 1d ago
Details
B
145/205
1 critical2 high
Weakest: Basic Security, Record Security
Email Authchecked 1d ago
Details
SPFDKIM?DMARC
Policy: reject
DNSSECchecked 1d ago
Details
Valid chain of trust
Tech Stackchecked 1d ago
Details
No technologies detected
HTTP / Headerschecked 1d ago
Details
1 redirect(s) → 200
HSTSCSPX-FrameNosniff
Threatschecked 1d ago
Details
Risk: none · score 0
Zone census
Subdomainschecked 1d ago
Details
0 found · 111 answered · 1 timed out (unknown)
Click a subdomain for its full report
Web Archivechecked 1d ago
Details
First archived: 2000-04-07
~26 years of history
Deliverabilitychecked 1d ago
Details
75%B
30/40 points · 4 issue(s)
0 MX · 0 IP(s)
Top fix: No SPF record

IPv6

Measured 2026-11-08 16:57 UTC · aaaa.bot
A

Website, mail and DNS all work over IPv6.

All 4 published IPv6 addresses accepted a connection when we tried them.

  • ✓ medlineplus.gov answers (4 of 4 addresses)
  • ✓ www.medlineplus.gov answers (4 of 4)
  • ✓ Mail: 3 of 3 servers have IPv6
  • ✓ Nameservers: 3 of 3 have IPv6
Details: published addresses and what answered

Loads over IPv6 with a valid certificate: HTTP 200.

medlineplus.govPublished2600:9000:286a:a600:1:6b7c:7400:93a12600:9000:286a:6a00:1:6b7c:7400:93a12600:9000:286a:1000:1:6b7c:7400:93a12600:9000:286a:e600:1:6b7c:7400:93a12600:9000:286a:e000:1:6b7c:7400:93a12600:9000:286a:1e00:1:6b7c:7400:93a12600:9000:286a:5000:1:6b7c:7400:93a12600:9000:286a:c800:1:6b7c:7400:93a1Answers when we connect✓ answers on 443✓ answers on 443✓ answers on 443✓ answers on 443not testednot testednot testednot tested
www.medlineplus.govPublished2600:9000:286a:c00:1:6b7c:7400:93a12600:9000:286a:4400:1:6b7c:7400:93a12600:9000:286a:ee00:1:6b7c:7400:93a12600:9000:286a:fc00:1:6b7c:7400:93a12600:9000:286a:3400:1:6b7c:7400:93a12600:9000:286a:c400:1:6b7c:7400:93a12600:9000:286a:a600:1:6b7c:7400:93a12600:9000:286a:2000:1:6b7c:7400:93a1Answers when we connect✓ answers on 443✓ answers on 443✓ answers on 443✓ answers on 443not testednot testednot testednot tested
MailPublishednihcesxway3.hub.nih.govnihcesxway4.hub.nih.govnihcesxway5.hub.nih.govAnswers when we connect✓ has IPv6✓ has IPv6✓ has IPv6
NameserversPublishedgslb01.nlm.nih.govgslb02.nlm.nih.govgslb03.nlm.nih.govAnswers when we connect✓ has IPv6✓ has IPv6✓ has IPv6
First measured with IPv6 on 2026-11-08Changes are recorded from here on, each with its date.
Full check on aaaa.bot →Permanent receipt nzc-XyWEhAJSON

See where it lives on the IPv4 map →

Lineage

Our records: Nov 24, 2023 → Nov 8, 2026

Oldest registry snapshot we hold: 2023 · 2 renewals on record. These dates are when our records begin, not when the domain was registered.

Registrar

  • Cybersecurity and Infrastructure Security Agency
    Jan 2024
  • get.govlast seen Sep 2025
    Sep 2025

DNS provider

  • nih.gov
    Nov 2023 – Jun 2026

IPv6

  • IPv6published, and answering
    First measured Nov 2026
What changed
  1. IPv6 first measured: published, and answering on Nov 8, 2026medlineplus.gov has 8 IPv6 addresses. Grade A. Measured by aaaa.bot, 2026-11-08 16:57 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
  2. Renewed +1 year between Sep 10, 2025 and Sep 19, 2025Expiry moved from 2025-09-22 to 2026-09-15, at get.gov.
  3. Renewed +1 year between Jan 1, 2024 and Jan 24, 2024Expiry moved from 2024-09-22 to 2025-09-22, at Cybersecurity and Infrastructure Security Agency.

Solid bar: the stretch we observed that name. Dot: a single sighting. Dotted line: no record between sightings of the same name. Nothing is drawn between different names.

Registrar and renewals: 62 WHOIS/RDAP snapshots, 2023-11-24 to 2026-05-16 (ledger built 2026-09-27). Every renewal

DNS provider, WHOIS snapshots: 50 WHOIS/RDAP snapshots that listed nameservers, 2023-11-24 to 2026-06-25 (who.is archive). Both sources feed one row per provider (hover a bar to see which); a change is placed between the nearest observations on either side, and where the two sources disagree, both are listed under What changed.

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Explore related

Registered in 2000 — the same year as twitter.com, yandex.net and wordpress.com.

AgeDomains from 2000TLD.gov domainsRegistrarget.govDNS providernih.gov nameserversIPv6Does medlineplus.gov have IPv6?