Check-Host.cc

Try 1.1.1.1 AS13335 check-host.cc /country/de /tld/cc
Domain

library.rit.edu

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

DNS Check HTTP Check Run Full Scan .edu TLD

Run a live full scan of library.rit.edu

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

Deep-scan now
Hosting IPs
1
A/AAAA targets
Subdomains
—
CT + scan + body
Record Types
3
seen in DNS
Observed Certs
18
in our scans

DNS Records

A
129.21.1.46
AAAA
—
MX
5 mx03a-in01r.rit.edu, 5 mx03b-in01r.rit.edu, 5 mx03c-in01r.rit.edu, 5 mx03d-in01r.rit.edu, 5 mx03e-in01r.rit.edu, 5 mx03f-in01r.rit.edu, 5 mx03g-in01r.rit.edu, 5 mx03h-in01r.rit.edu
NS
accuvax.northwestern.edu, ns1a.rit.edu, ns2a.rit.edu
TXT
—
CNAME
—
CAA
—

WHOIS / Registration

Registration data planned

Registrar, creation/expiry dates and domain status via RDAP. Rolling out gradually — bulk WHOIS is rate-limited, so we resolve on a prioritized cadence.

Subdomains

Subdomain enumeration pending

Every subdomain ever issued a TLS cert under this apex — extracted from Certificate Transparency logs, our own scan observations and body references.

Tech Stack

Tech detection pending

Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.

TLS Certificates

Certificate observations pending

TLS certs naming this domain in subject or SANs will appear here as our scan-layer catches them.

IPs Citing This Domain

No citing IPs found yet

As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.

Origin / IP-Leak

USP

When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.

No origin-IP leaks detected (yet)

Either this domain doesn't sit behind a CDN, or we haven't seen a TLS cert from a non-CDN IP matching this hostname. Run a fullscan to refresh the cert→IP cross-reference.

CT-Log Evidence

Certificates from public Certificate Transparency logs whose subject or SAN names this domain — including historic certs we never observed live.

38f80efe5c265410… google · xenon2026h2
Subject: www.rit.edu
Issuer: InCommon RSA Server CA 2
SANs: www.rit.edu, ithelp.rit.edu, its.rit.edu, itshd.rit.edu, itswiki.rit.edu, ivcf.rit.edu, ivet.rit.edu, ivv.rit.edu, iwc.rit.edu, jira.rit.edu, joboutlook.rit.edu, jobsalt.rit.edu, jordan.diversity.rit.edu, kidsoncampus.rit.edu, kosova.rit.edu, kosovo.rit.edu, kronos.rit.edu, kronosdev.rit.edu, la.rit.edu, labs.cast.rit.edu, labs.soet.rit.edu, labsupport.rit.edu, languagescience.rit.edu, launch.rit.edu, laworkshop.rit.edu, lead.rit.edu, lean.rit.edu, lecdm.rit.edu, legaldownloads.rit.edu, library.rit.edu, lifescience.rit.edu, lifesciences.rit.edu, linguistics.rit.edu, livephoto.rit.edu, loop.rit.edu, mabl.rit.edu, maintenancerequest.rit.edu, math.rit.edu, mathmodeling.rit.edu, mathmodelling.rit.edu, mathplacement.rit.edu, mba.rit.edu, mcgowan.rit.edu, mcsl.rit.edu, meddesign.rit.edu, medicalscience.rit.edu, mesa.microe.rit.edu, metaproject.rit.edu, meteor.rit.edu, microsystems.rit.edu, mltc.rit.edu
Valid: 2025-09-03 00:00:00 → 2026-10-04 23:59:59
3b71a4e60bd23c5e… google · argon2026h2
Subject: www.rit.edu
Issuer: InCommon RSA Server CA 2
SANs: www.rit.edu, ithelp.rit.edu, its.rit.edu, itshd.rit.edu, itswiki.rit.edu, ivcf.rit.edu, ivet.rit.edu, ivv.rit.edu, iwc.rit.edu, jira.rit.edu, joboutlook.rit.edu, jobsalt.rit.edu, jordan.diversity.rit.edu, kidsoncampus.rit.edu, kosova.rit.edu, kosovo.rit.edu, kronos.rit.edu, kronosdev.rit.edu, la.rit.edu, labs.cast.rit.edu, labs.soet.rit.edu, labsupport.rit.edu, languagescience.rit.edu, launch.rit.edu, laworkshop.rit.edu, lead.rit.edu, lean.rit.edu, lecdm.rit.edu, legaldownloads.rit.edu, library.rit.edu, lifescience.rit.edu, lifesciences.rit.edu, linguistics.rit.edu, livephoto.rit.edu, loop.rit.edu, mabl.rit.edu, maintenancerequest.rit.edu, math.rit.edu, mathmodeling.rit.edu, mathmodelling.rit.edu, mathplacement.rit.edu, mba.rit.edu, mcgowan.rit.edu, mcsl.rit.edu, meddesign.rit.edu, medicalscience.rit.edu, mesa.microe.rit.edu, metaproject.rit.edu, meteor.rit.edu, microsystems.rit.edu, mltc.rit.edu
Valid: 2025-09-03 00:00:00 → 2026-10-04 23:59:59

Threat Intelligence

Domain threat-intel pending

Matches in URLhaus, OpenPhish, PhishTank, malware feeds, and Spamhaus DBL.

History

Passive DNS — every value this name ever resolved to and when we first / last observed it. Updates every cycle of our forward-DNS crawler.

Type Value First seen Last seen
MX 5 mx03g-in01r.rit.edu 2026-05-27 06:41:32.231 2026-06-03 09:36:13.492
MX 5 mx03c-in01r.rit.edu 2026-05-27 06:41:32.231 2026-06-03 09:36:13.492
MX 5 mx03b-in01r.rit.edu 2026-05-27 06:41:32.231 2026-06-03 09:36:13.492
MX 5 mx03f-in01r.rit.edu 2026-05-27 06:41:32.231 2026-06-03 09:36:13.492
MX 5 mx03d-in01r.rit.edu 2026-05-27 06:41:32.231 2026-06-03 09:36:13.492
MX 5 mx03a-in01r.rit.edu 2026-05-27 06:41:32.231 2026-06-03 09:36:13.492
MX 5 mx03e-in01r.rit.edu 2026-05-27 06:41:32.231 2026-06-03 09:36:13.492
MX 5 mx03h-in01r.rit.edu 2026-05-27 06:41:32.231 2026-06-03 09:36:13.492
A 129.21.1.46 2026-05-27 06:41:32.231 2026-06-20 18:37:10.144
NS ns2a.rit.edu 2026-06-14 22:36:55.780 2026-07-31 08:03:57.502
NS accuvax.northwestern.edu 2026-06-14 22:36:55.780 2026-07-31 08:03:57.502
NS ns1a.rit.edu 2026-06-14 22:36:55.780 2026-07-31 08:03:57.502