Domain Intelligence Report
uchicago.edu
Lineage
Jul 6, 2005 → Oct 31, 2026Registry record since 2025 · 0 renewals on record · certificate history partial so far.
Registrar
20 snapshots
Nameservers
seen in WHOIS
uchicago.edu + yale.eduuchicago.edu + yale.eduuchicago.edu + uiowa.edu + yale.eduuchicago.edu + uiowa.eduDNS moved to uchicago.edu + uiowa.edubetween Mar 23, 2017 and Jun 1, 2017ucns.yale.edu, ucns1.uchicago.edu, ucns2.uchicago.edu → ucns1.uchicago.uiowa.edu, ucns3.uchicago.edu, ucns4.uchicago.edu. Old set last seen in WHOIS on 2017-03-23; new set first seen in WHOIS on 2017-06-01.DNS moved to uchicago.edu + uiowa.edu + yale.edubetween Nov 8, 2017 and Dec 27, 2017ucns1.uchicago.uiowa.edu, ucns3.uchicago.edu, ucns4.uchicago.edu → ucns1.uchicago.uiowa.edu, ucns1.uchicago.yale.edu, ucns3.uchicago.edu, ucns4.uchicago.edu. Old set last seen in WHOIS on 2017-11-08; new set first seen in WHOIS on 2017-12-27.DNS moved to uchicago.edu + uiowa.edubetween Jul 10, 2020 and Jul 29, 2020ucns1.uchicago.uiowa.edu, ucns1.uchicago.yale.edu, ucns3.uchicago.edu, ucns4.uchicago.edu → ucns1.uchicago.uiowa.edu, ucns3.uchicago.edu, ucns4.uchicago.edu. Old set last seen in WHOIS on 2020-07-10; new set first seen in WHOIS on 2020-07-29.
Certificates
partial: 3,921 read
EquifaxInternet2Certificates moved to Equifax Securebetween Jan 4, 2006 and Mar 24, 2006Equifax issued the most certificates until 2006-01-04; Equifax Secure from 2006-03-24.Certificates moved to Equifaxbetween Sep 15, 2006 and Oct 2, 2006Equifax Secure issued the most certificates until 2006-09-15; Equifax from 2006-10-02.Unusual issuer: The USERTRUST Networkon Jul 25, 20071 certificate from The USERTRUST Network (2007-07-25), an issuer this name rarely uses. Worth checking who requested it; not proof of anything.Unusual issuer: VeriSignon Jul 30, 20077 certificates from VeriSign (2007-07-30 to 2011-04-21), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Unusual issuer: Thawte Consulting ccon Jul 30, 20073 certificates from Thawte Consulting cc (2007-07-30 to 2009-01-21), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Unusual issuer: Entruston Feb 6, 20097 certificates from Entrust (2009-02-06 to 2012-06-05), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Certificates moved to GeoTrustbetween Jun 27, 2010 and Jul 22, 2010Equifax issued the most certificates until 2010-06-27; GeoTrust from 2010-07-22.Certificates moved to COMODO CAbetween Dec 28, 2010 and Jan 11, 2011GeoTrust issued the most certificates until 2010-12-28; COMODO CA from 2011-01-11.Unusual issuer: Thawteon Jan 11, 20112 certificates from Thawte (2011-01-11), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Certificates moved to Internet2between Jan 27, 2011 and Feb 2, 2011COMODO CA issued the most certificates until 2011-01-27; Internet2 from 2011-02-02.Unusual issuer: GoDaddyon Sep 19, 20125 certificates from GoDaddy (2012-09-19 to 2015-05-05), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Unusual issuer: Trustwave Holdingson Sep 24, 201319 certificates from Trustwave Holdings (2013-09-24 to 2017-07-25), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Certificates moved to Let's Encryptbetween Feb 22, 2016 and Mar 2, 2016Internet2 issued the most certificates until 2016-02-22; Let's Encrypt from 2016-03-02.Certificates moved to GlobalSign nv-sabetween May 15, 2016 and Jun 29, 2016Let's Encrypt issued the most certificates until 2016-05-15; GlobalSign nv-sa from 2016-06-29.Certificates moved to Let's Encryptbetween Jul 11, 2016 and Aug 1, 2016GlobalSign nv-sa issued the most certificates until 2016-07-11; Let's Encrypt from 2016-08-01.Unusual issuer: cPanelon Jun 20, 20172 certificates from cPanel (2017-06-20 to 2017-09-04), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Certificates moved to Internet2between Oct 2, 2017 and Sep 26, 2025Let's Encrypt issued the most certificates until 2017-10-02; Internet2 from 2025-09-26.Unusual issuer: Amazonon Sep 28, 202515 certificates from Amazon (2025-09-28 to 2026-06-15), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.Certificates moved to InCommonbetween Apr 30, 2026 and May 4, 2026Internet2 issued the most certificates until 2026-04-30; InCommon from 2026-05-04.Certificates moved to Let's Encryptbetween Jun 16, 2026 and Jul 29, 2026InCommon issued the most certificates until 2026-06-16; Let's Encrypt from 2026-07-29.Unusual issuer: Starfield Technologieson Aug 5, 20262 certificates from Starfield Technologies (2026-08-05), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.
20092013201720212026
What changed (latest 8 of 25)
- Unusual issuer: Starfield Technologies on Aug 5, 20262 certificates from Starfield Technologies (2026-08-05), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.
- Certificates moved to Let's Encrypt between Jun 16, 2026 and Jul 29, 2026InCommon issued the most certificates until 2026-06-16; Let's Encrypt from 2026-07-29.
- Certificates moved to InCommon between Apr 30, 2026 and May 4, 2026Internet2 issued the most certificates until 2026-04-30; InCommon from 2026-05-04.
- Unusual issuer: Amazon on Sep 28, 202515 certificates from Amazon (2025-09-28 to 2026-06-15), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.
- Certificates moved to Internet2 between Oct 2, 2017 and Sep 26, 2025Let's Encrypt issued the most certificates until 2017-10-02; Internet2 from 2025-09-26.
- DNS moved to uchicago.edu + uiowa.edu between Jul 10, 2020 and Jul 29, 2020ucns1.uchicago.uiowa.edu, ucns1.uchicago.yale.edu, ucns3.uchicago.edu, ucns4.uchicago.edu → ucns1.uchicago.uiowa.edu, ucns3.uchicago.edu, ucns4.uchicago.edu. Old set last seen in WHOIS on 2020-07-10; new set first seen in WHOIS on 2020-07-29.
- DNS moved to uchicago.edu + uiowa.edu + yale.edu between Nov 8, 2017 and Dec 27, 2017ucns1.uchicago.uiowa.edu, ucns3.uchicago.edu, ucns4.uchicago.edu → ucns1.uchicago.uiowa.edu, ucns1.uchicago.yale.edu, ucns3.uchicago.edu, ucns4.uchicago.edu. Old set last seen in WHOIS on 2017-11-08; new set first seen in WHOIS on 2017-12-27.
- Unusual issuer: cPanel on Jun 20, 20172 certificates from cPanel (2017-06-20 to 2017-09-04), an issuer this name rarely uses. Worth checking who requested them; not proof of anything.
Registrar and renewals: 20 WHOIS/RDAP snapshots, 2025-01-05 to 2025-04-29 (ledger built 2026-09-27). Every renewal
Nameservers, WHOIS snapshots: 436 WHOIS/RDAP snapshots that listed nameservers, 2009-01-03 to 2026-06-11 (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: 3,921 logged certificates (precertificate and final counted once), read 2026-10-27, reading incomplete. A bar is the issuer that issued the most certificates in those months; Let's Encrypt renews about every 1 days (median over 50 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... (11/12)
DNS
WHOIS
Security
Email
DNSSEC
Threats
Deliverability
SSL/TLS
HTTP
Tech Stack
Subdomains
Archive
Safe
threat: mediumno attacks or spoofing
Up
HTTP 200reachable and responding
Right
Set up Page Watchit is what it is
Ready
90d aheadyou see what's coming
Outline
DNS
1 A · 4 MX · 4 NS · 1 PTR · 1 SOA · 48 TXT
SSL/TLS
InCommon, LLC · TLSv1.3 · expires in 90d · 1 SANs
Email Auth
SPF ✗ · DKIM ✓ · DMARC ✗ (p=none)
DNSSEC
signed · valid chain of trust
Tech Stack
Email: Proofpoint
HTTP
2 redirect → 200 · HSTS ✗ · CSP ✗ · X-Frame ✗ · Nosniff ✗
Security
B (151/205) · 2 critical · 2 high
Threats
risk: medium
Deliverability
A (91/100) · 4 MX · 4 IPs · 2 issue(s)
Subdomains
1 found · 103 answered (9 timed out) — cloud
Web Archive
first snapshot 1997-02-19 · 29y archived
DNS Recordschecked 1.8d ago
Details1 A · 4 MX · 4 NS · 1 PTR · 1 SOA · 48 TXT
WHOIS
Then vs Nownew
DetailsSame organisation as in 2013.
“UChicago.edu is the University of Chicago.” — AboutUs, 2013
Now: Education or reference · actively maintained
AI-judged Sep 30, 2026: likely, not verified
SSL/TLSchecked 1.8d ago
DetailsValid certificate
Issuer: InCommon, LLC
Protocol: TLSv1.3
Expires in 90 days
1 SAN(s)
Securitychecked 1.8d ago
DetailsB
151/205
2 critical2 high
Weakest: Record Security, Basic Security
Email Authchecked 1.8d ago
DetailsSPFDKIMDMARC
Policy: none
DNSSECchecked 1.8d ago
DetailsValid chain of trust
Tech Stackchecked 1.8d ago
DetailsEmail: ProofpointGoogle Search ConsoleFacebook Domain VerificationApple BusinessAtlassian
HTTP / Headerschecked 1.8d ago
Details2 redirect(s) → 200
HSTSCSPX-FrameNosniff
Threatschecked 1.8d ago
DetailsRisk: medium · score 0.6999999999999998
Zone census
Subdomainschecked 1.8d ago
DetailsWeb Archivechecked 1.8d ago
DetailsFirst archived: 1997-02-19
~29 years of history
Deliverabilitychecked 1.8d ago
DetailsA
91/100 · 2 issue(s)
4 MX · 4 IP(s)
Top fix: SPF record has no 'all' mechanism
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