Domain Intelligence Report
clevelandclinic.org
IPv6
Measured 2026-10-31 23:31 UTC · aaaa.botB
Works over IPv6, with one gap: its mail servers lack IPv6.
clevelandclinic.org has 2 IPv6 addresses and answers on every one we tested.
- ✓ clevelandclinic.org answers (2 of 2 addresses)
- ✓ www.clevelandclinic.org answers (2 of 2)
- ✗ Mail: 0 of 2 servers have IPv6
- ✓ Nameservers: 2 of 2 have IPv6
Details: published addresses and what answered
Loads over IPv6 with a valid certificate after 2 redirects: HTTP 200.
| Name | Published address (AAAA) | Answers when we connect |
|---|---|---|
| clevelandclinic.org | Published2606:4700:4407::6812:20d82a06:98c1:3103::ac40:9b28 | Answers when we connect✓ answers on 443✓ answers on 443 |
| www.clevelandclinic.org | Published2a06:98c1:3101::6812:25c52606:4700:4406::ac40:963b | Answers when we connect✓ answers on 443✓ answers on 443 |
Publishedus-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.com | Answers when we connect✗ no IPv6✗ no IPv6 | |
| Nameservers | Publishedbob.ns.cloudflare.cometta.ns.cloudflare.com | Answers when we connect✓ has IPv6✓ has IPv6 |
First measured with IPv6 on 2026-10-31Changes are recorded from here on, each with its date.
Lineage
Our records: Aug 16, 2006 → Nov 1, 2026Oldest registry snapshot we hold: 2011 · 12 renewals on record · DNS at Cloudflare · certificate history partial so far · 1 nameserver change seen. These dates are when our records begin, not when the domain was registered.
Registrar
150 snapshots
GoDaddy.com, LLCGoDaddy Corporate Domains, LLCRenewed +3 yearsbetween Oct 18, 2011 and Mar 18, 2014Expiry moved from 2012-01-07 to 2015-01-07, at GoDaddy.com, LLC (R91-LROR).Renewed +2 yearsbetween Apr 11, 2014 and Jul 22, 2016Expiry moved from 2015-01-07 to 2017-01-07, at GoDaddy.com, LLC.Renewed +1 yearbetween Dec 15, 2016 and Jan 18, 2017Expiry moved from 2017-01-07 to 2018-01-07, at GoDaddy.com, LLC.Renewed +1 yearbetween Nov 16, 2017 and Apr 21, 2018Expiry moved from 2018-01-07 to 2019-01-07, at GoDaddy.com, LLC.Renewed +1 yearbetween Dec 10, 2018 and Jan 12, 2019Expiry moved from 2019-01-07 to 2020-01-07, at GoDaddy.com, LLC.Renewed +1 yearbetween Dec 16, 2019 and Jan 16, 2020Expiry moved from 2020-01-07 to 2021-01-07, at GoDaddy.com, LLC.Renewed +1 yearbetween Dec 15, 2020 and Jan 15, 2021Expiry moved from 2021-01-07 to 2022-01-07, at GoDaddy.com, LLC.Renewed +1 yearbetween Feb 14, 2021 and Feb 26, 2021Expiry moved from 2022-01-07 to 2023-01-07, at GoDaddy.com, LLC.Renewed +1 yearbetween Sep 7, 2022 and Sep 20, 2022Expiry moved from 2023-01-07 to 2024-01-07, at GoDaddy.com, LLC.Renewed +1 yearbetween Dec 5, 2023 and Jan 4, 2024Expiry moved from 2024-01-07 to 2025-01-07, at GoDaddy.com, LLC.Renewed +1 yearbetween Feb 6, 2024 and Feb 8, 2024Expiry moved from 2025-01-07 to 2026-01-07, at GoDaddy Corporate Domains, LLC.Renewed +1 yearbetween Dec 7, 2025 and Dec 31, 2025Expiry moved from 2026-01-07 to 2027-01-07, at GoDaddy Corporate Domains, LLC.
Nameservers
registry zone files
seen in WHOIS
ccf.orgccf.orgCloudflareDNS moved to Cloudflarebetween Apr 12, 2024 and May 13, 2024ns4.ccf.org, ns5.ccf.org → bob.ns.cloudflare.com, etta.ns.cloudflare.com. Old set last seen in WHOIS on 2024-04-12; new set first seen in WHOIS on 2024-05-13.
Certificates
partial: 3,223 read
Thawte Consulting (Pty)Starfield TechnologiesLet's EncryptLet's EncryptCertificates moved to Thawtebetween Sep 13, 2010 and Nov 23, 2010Thawte Consulting (Pty) issued the most certificates until 2010-09-13; Thawte from 2010-11-23.Certificates moved to Starfield Technologiesbetween Aug 19, 2011 and Sep 21, 2011Thawte issued the most certificates until 2011-08-19; Starfield Technologies from 2011-09-21.Certificates moved to Thawtebetween Mar 22, 2012 and Apr 26, 2012Starfield Technologies issued the most certificates until 2012-03-22; Thawte from 2012-04-26.Certificates moved to Starfield Technologiesbetween May 24, 2012 and Jun 18, 2012Thawte issued the most certificates until 2012-05-24; Starfield Technologies from 2012-06-18.Certificates moved to Thawtebetween Feb 26, 2013 and Apr 12, 2013Starfield Technologies issued the most certificates until 2013-02-26; Thawte from 2013-04-12.Certificates moved to Starfield Technologiesbetween May 29, 2013 and Jun 4, 2013Thawte issued the most certificates until 2013-05-29; Starfield Technologies from 2013-06-04.Certificates moved to Thawtebetween Sep 20, 2013 and Oct 18, 2013Starfield Technologies issued the most certificates until 2013-09-20; Thawte from 2013-10-18.Certificates moved to Starfield Technologiesbetween Nov 14, 2013 and Dec 23, 2013Thawte issued the most certificates until 2013-11-14; Starfield Technologies from 2013-12-23.Certificates moved to GoDaddybetween May 8, 2017 and Jun 8, 2017Starfield Technologies issued the most certificates until 2017-05-08; GoDaddy from 2017-06-08.Certificates moved to Let's Encryptbetween Sep 29, 2017 and Oct 9, 2017GoDaddy issued the most certificates until 2017-09-29; Let's Encrypt from 2017-10-09.Unusual issuer: cPanelon Feb 6, 201821 certificates from cPanel (2018-02-06 to 2022-11-06), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Unusual issuer: CloudFlareon May 8, 201812 certificates from CloudFlare (2018-05-08 to 2020-03-07), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Certificates moved to Starfield Technologiesbetween Jan 20, 2020 and Feb 10, 2020Let's Encrypt issued the most certificates until 2020-01-20; Starfield Technologies from 2020-02-10.Certificates moved to Let's Encryptbetween Mar 28, 2020 and Apr 3, 2020Starfield Technologies issued the most certificates until 2020-03-28; Let's Encrypt from 2020-04-03.Unusual issuer: Amazonon May 27, 20215 certificates from Amazon (2021-05-27 to 2025-12-03), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Certificates moved to Starfield Technologiesbetween Oct 27, 2021 and Nov 1, 2021Let's Encrypt issued the most certificates until 2021-10-27; Starfield Technologies from 2021-11-01.Certificates moved to Google Trust Servicesbetween Nov 23, 2021 and Dec 10, 2021Starfield Technologies issued the most certificates until 2021-11-23; Google Trust Services from 2021-12-10.Certificates moved to Let's Encryptbetween Feb 23, 2022 and Mar 3, 2022Google Trust Services issued the most certificates until 2022-02-23; Let's Encrypt from 2022-03-03.Unusual issuer: GlobalSign nv-saon Apr 5, 202314 certificates from GlobalSign nv-sa (2023-04-05 to 2026-09-11), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Unusual issuer: ZeroSSLon Dec 15, 20233 certificates from ZeroSSL (2023-12-15 to 2026-10-04), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Certificates moved to Cloudflarebetween Mar 30, 2024 and Apr 2, 2024Let's Encrypt issued the most certificates until 2024-03-30; Cloudflare from 2024-04-02.Certificates moved to Google Trust Servicesbetween Apr 2, 2024 and May 7, 2024Cloudflare issued the most certificates until 2024-04-02; Google Trust Services from 2024-05-07.Certificates moved to Sectigobetween Aug 21, 2024 and Oct 6, 2025Google Trust Services issued the most certificates until 2024-08-21; Sectigo from 2025-10-06.Certificates moved to DigiCertbetween May 27, 2026 and Jul 2, 2026Sectigo issued the most certificates until 2026-05-27; DigiCert from 2026-07-02.Certificates moved to Google Trust Servicesbetween Jul 18, 2026 and Aug 1, 2026DigiCert issued the most certificates until 2026-07-18; Google Trust Services from 2026-08-01.Unusual issuer: SSLon Aug 12, 202610 certificates from SSL (2026-08-12 to 2026-10-16), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.
IPv6
aaaa.bot check
20102014201820222026
What changed (latest 8 of 41)
- IPv6 first measured: published, and answering on Oct 31, 2026clevelandclinic.org has 2 IPv6 addresses. Grade B. Measured by aaaa.bot, 2026-10-31 23:31 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
- Unusual issuer: SSL on Aug 12, 202610 certificates from SSL (2026-08-12 to 2026-10-16), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.
- Certificates moved to Google Trust Services between Jul 18, 2026 and Aug 1, 2026DigiCert issued the most certificates until 2026-07-18; Google Trust Services from 2026-08-01.
- Certificates moved to DigiCert between May 27, 2026 and Jul 2, 2026Sectigo issued the most certificates until 2026-05-27; DigiCert from 2026-07-02.
- Renewed +1 year between Dec 7, 2025 and Dec 31, 2025Expiry moved from 2026-01-07 to 2027-01-07, at GoDaddy Corporate Domains, LLC.
- Certificates moved to Sectigo between Aug 21, 2024 and Oct 6, 2025Google Trust Services issued the most certificates until 2024-08-21; Sectigo from 2025-10-06.
- DNS moved to Cloudflare between Apr 12, 2024 and May 13, 2024ns4.ccf.org, ns5.ccf.org → bob.ns.cloudflare.com, etta.ns.cloudflare.com. Old set last seen in WHOIS on 2024-04-12; new set first seen in WHOIS on 2024-05-13.
- Certificates moved to Google Trust Services between Apr 2, 2024 and May 7, 2024Cloudflare issued the most certificates until 2024-04-02; Google Trust Services from 2024-05-07.
Registrar and renewals: 150 WHOIS/RDAP snapshots, 2011-07-10 to 2026-05-19 (ledger built 2026-09-27). Every renewal
Nameservers, registry zone files: 86 .org zone-file snapshots held, 2026-08-05 to 2026-10-31.
Nameservers, WHOIS snapshots: 147 WHOIS/RDAP snapshots that listed nameservers, 2011-07-10 to 2026-06-25 (who.is archive). A change is placed between the nearest observations on either side, from whichever source made them; where the two sources disagree, both are shown.
Hatched = the span we hold records for. A coloured bar runs only between observations that named the same registrar or operator; nothing is assumed in between.
Certificates: 3,223 logged certificates (precertificate and final counted once), read 2026-10-30, reading incomplete. A bar is the issuer that issued the most certificates in those months; Google Trust Services renews about every 1 days (median over 54 issuance days). Public CT logging began in 2013; older certificates appear only where someone logged them later.
Each mark sits at the first observation of the new state; its bracket runs back to the last observation of the old one.
Gathering intelligence... (0/12)
DNS
WHOIS
Security
Email
DNSSEC
Threats
Deliverability
SSL/TLS
HTTP
Tech Stack
Subdomains
Archive
Safe
Checking…no attacks or spoofing
Up
Checking…reachable and responding
Right
Set up Page Watchit is what it is
Ready
Checking…you see what's coming
Outline
Gathering data — check results will appear here as they complete.
DNS Records
WHOIS
Then vs Nownew
DetailsSame organisation as in 2013.
“ClevelandClinic.org Cleveland Clinic Institute providing extensive medical info” — AboutUs, 2013
Now: Health · actively maintained
AI-judged Sep 30, 2026: likely, not verified
SSL/TLS
Security
Email Auth
DNSSEC
Tech Stack
HTTP / Headers
Threats
Zone census
Subdomains
Web Archive
Deliverability
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