Domain Intelligence Report
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
67d aheadyou see what's coming
Outline
DNS
1 A · 2 MX · 8 NS · 1 SOA · 9 TXT · 2 AAAA
SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 67d · 6 SANs
Email Auth
SPF ✓ · DKIM ✓ · DMARC ✗ (p=none)
DNSSEC
signed · valid chain of trust
Tech Stack
Host: Fastly, Inc. · Email: Proofpoint · nginx
HTTP
2 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✓ · Nosniff ✓
Security
B (163/205) · 1 critical · 2 high
Threats
risk: medium
Deliverability
A (93/100) · 2 MX · 2 IPs · 2 issue(s)
Subdomains
1 found · 59 answered (53 timed out) — www
Web Archive
no snapshots found
DNS Recordschecked 4.1d ago
Details1 A · 2 MX · 8 NS · 1 SOA · 9 TXT · 2 AAAA
WHOIS
Then vs Nownew
DetailsSame organisation as in 2013.
“UPenn.edu is the University of Pennsylvania offering various summer prog.” — AboutUs, 2013
Now: Education or reference · actively maintained
AI-judged Sep 30, 2026: likely, not verified
SSL/TLSchecked 4.1d ago
DetailsValid certificate
Issuer: Let's Encrypt
Protocol: TLSv1.3
Expires in 67 days
6 SAN(s)
Securitychecked 4.1d ago
DetailsB
163/205
1 critical2 high
Weakest: Basic Security, Record Security
Email Authchecked 4.1d ago
DetailsSPFDKIMDMARC
Policy: none
DNSSECchecked 4.1d ago
DetailsValid chain of trust
Tech Stackchecked 4.1d ago
DetailsFastly, Inc.nginxEmail: ProofpointGoogle Search ConsoleAtlassianDocuSign
HTTP / Headerschecked 4.1d ago
Details2 redirect(s) → 200
HSTSCSPX-FrameNosniff
Threatschecked 4.1d ago
DetailsRisk: medium · score 0.6999999999999998
Zone census
Subdomainschecked 4.1d ago
DetailsWeb Archivechecked 4.1d ago
DetailsNo archive snapshots found
Deliverabilitychecked 4.1d ago
DetailsA
93/100 · 2 issue(s)
2 MX · 2 IP(s)
Top fix: DMARC policy is none (monitor only)
IPv6
Measured 2026-11-02 16:56 UTC · aaaa.botB
Works over IPv6, with one gap: its mail servers lack IPv6.
upenn.edu has 2 IPv6 addresses and answers on every one we tested.
- ✓ upenn.edu answers (2 of 2 addresses)
- ✓ www.upenn.edu answers (2 of 2)
- ✗ Mail: 0 of 2 servers have IPv6
- ✓ Nameservers: 6 of 8 have IPv6
Details: published addresses and what answered
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
| Name | Published address (AAAA) | Answers when we connect |
|---|---|---|
| upenn.edu | Published2620:12a:8001::42620:12a:8000::4 | Answers when we connect✓ answers on 443✓ answers on 443 |
| www.upenn.edu | Published2620:12a:8000::42620:12a:8001::4 | Answers when we connect✓ answers on 443✓ answers on 443 |
Publishedmxa-00390e01.gslb.pphosted.commxb-00390e01.gslb.pphosted.com | Answers when we connect✗ no IPv6✗ no IPv6 | |
| Nameservers | Publisheddns1.udel.edudns2.udel.eduadns1.nnn.upenn.eduadns2.nnn.upenn.eduadns3.nnn.upenn.eduadns4.upenn.eduadns5.upenn.eduadns6.upenn.edu | Answers when we connect✗ no IPv6✗ no IPv6✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6 |
First measured with IPv6 on 2026-11-02Changes are recorded from here on, each with its date.
Lineage
Our records: Jan 3, 2009 → Nov 2, 2026Oldest registry snapshot we hold: 2025 · 0 renewals on record. These dates are when our records begin, not when the domain was registered.
DNS provider
- udel.edu + upenn.eduJan 2009 – Jun 2026
- isc.org + udel.edu + upenn.eduJun 2010 – Jan 2020
IPv6
- IPv6published, and answeringFirst measured Nov 2026
What changed
- IPv6 first measured: published, and answering on Nov 2, 2026upenn.edu has 2 IPv6 addresses. Grade B. Measured by aaaa.bot, 2026-11-02 00:12 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
- New nameservers at udel.edu + upenn.edu between Oct 4, 2021 and Nov 4, 2021adns1.upenn.edu, adns2.upenn.edu, adns3.upenn.edu, adns4.upenn.edu, adns5.upenn.edu, adns6.upenn.edu, dns1.udel.edu, dns2.udel.edu → adns1.nnn.upenn.edu, adns2.nnn.upenn.edu, adns3.nnn.upenn.edu, adns4.upenn.edu, adns5.upenn.edu, adns6.upenn.edu, dns1.udel.edu, dns2.udel.edu. Old set last seen in WHOIS on 2021-10-04; new set first seen in WHOIS on 2021-11-04.
- DNS moved to udel.edu + upenn.edu between Jan 2, 2020 and Feb 2, 2020adns1.upenn.edu, adns2.upenn.edu, adns3.upenn.edu, dns1.udel.edu, dns2.udel.edu, sns-pb.isc.org → adns1.upenn.edu, adns2.upenn.edu, adns3.upenn.edu, dns1.udel.edu, dns2.udel.edu. Old set last seen in WHOIS on 2020-01-02; new set first seen in WHOIS on 2020-02-02.
- New nameservers at isc.org + udel.edu + upenn.edu between Dec 31, 2013 and Jan 27, 2014adns2.upenn.edu, dns1.udel.edu, dns2.udel.edu, noc3.dccs.upenn.edu, sns-pb.isc.org → adns1.upenn.edu, adns2.upenn.edu, adns3.upenn.edu, dns1.udel.edu, dns2.udel.edu, sns-pb.isc.org. Old set last seen in WHOIS on 2013-12-31; new set first seen in WHOIS on 2014-01-27.
- New nameservers at isc.org + udel.edu + upenn.edu between Jan 21, 2013 and Feb 22, 2013dns1.udel.edu, dns2.udel.edu, noc2.dccs.upenn.edu, noc3.dccs.upenn.edu, sns-pb.isc.org → adns2.upenn.edu, dns1.udel.edu, dns2.udel.edu, noc3.dccs.upenn.edu, sns-pb.isc.org. Old set last seen in WHOIS on 2013-01-21; new set first seen in WHOIS on 2013-02-22.
- DNS moved to isc.org + udel.edu + upenn.edu between Jun 10, 2010 and Jun 24, 2010dns1.udel.edu, dns2.udel.edu, noc2.dccs.upenn.edu, noc3.dccs.upenn.edu → dns1.udel.edu, dns2.udel.edu, noc2.dccs.upenn.edu, noc3.dccs.upenn.edu, sns-pb.isc.org. Old set last seen in WHOIS on 2010-06-10; new set first seen in WHOIS on 2010-06-24.
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: 27 WHOIS/RDAP snapshots, 2025-01-07 to 2025-04-26 (ledger built 2026-09-27). Every renewal
DNS provider, WHOIS snapshots: 564 WHOIS/RDAP snapshots that listed nameservers, 2009-01-03 to 2026-06-05 (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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