Check-Host.cc

Domain

uni-sofia.bg

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

Run a live full scan of uni-sofia.bg

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
A/AAAA targets
Subdomains
CT + scan + body
Record Types
seen in DNS
Observed Certs
in our scans

DNS Records

A
62.44.96.51
AAAA
2001:67c:20d0::51
MX
5 zimbra.uni-sofia.bg
NS
ns.digsys.bg, ns1.uni-sofia.bg, ns2.uni-sofia.bg
TXT
v=spf1 ip4:62.44.96.4/32 ip4:62.44.96.15/32 ip4:62.44.96.70/32 ip4:62.44.96.81/32 ip4:62.44.97.93/32 ip4:62.44.97.94/32 ip6:2001:67c:20d1:97::7d/128 ip6:2001:67c:20d0::4/128 ip6:2001:67c:20d0::15/128 ip6:2001:67c:20d1:97::7e/128 ip4:62.44.96.122/32 ip6:2001:67c:20d0::122/128 ip6:2001:67c:20d0::70/128 ip6:2001:67c:20d0::81/128 -all
CNAME
CAA
0 issue "digicert.com", 0 issue "letsencrypt.org", 0 issue "sectigo.com", 0 issuewild "comodoca.com", 0 issuewild "sectigo.com"

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

Subject: *.uni-sofia.bg
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.uni-sofia.bg, uni-sofia.bg
Subject: house-gw.dce.uni-sofia.bg
Issuer: SU ECC Identity Management CA
SANs: house-gw.dce.uni-sofia.bg
Subject: *.uni-sofia.bg
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.uni-sofia.bg, uni-sofia.bg
Subject: fnoi.uni-sofia.bg
Issuer: E8
SANs: fnoi.uni-sofia.bg, www.fnoi.uni-sofia.bg
Subject: *.uni-sofia.bg
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.uni-sofia.bg, uni-sofia.bg
Subject: zoology.uni-sofia.bg
Issuer: YR2
SANs: zoology.uni-sofia.bg
Subject: bio.kmk-dev.ucc.uni-sofia.bg
Issuer: R13
SANs: bio.kmk-dev.ucc.uni-sofia.bg
Subject: *.fmi.uni-sofia.bg
Issuer: Sectigo RSA Domain Validation Secure Server CA
SANs: *.fmi.uni-sofia.bg, fmi.uni-sofia.bg
Subject: *.uni-sofia.bg
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.uni-sofia.bg, uni-sofia.bg
Subject: *.fmi.uni-sofia.bg
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.fmi.uni-sofia.bg, fmi.uni-sofia.bg
Subject: RSMT2.it.fmi.uni-sofia.bg
Issuer: it-ROOT-CA
SANs: RSMT2.it.fmi.uni-sofia.bg
Subject: fjmc.uni-sofia.bg
Issuer: YR1
SANs: fjmc.uni-sofia.bg
Subject: nmr.chem.uni-sofia.bg
Issuer: nmr.chem.uni-sofia.bg
SANs: nmr.chem.uni-sofia.bg
Subject: newr-gw.dce.uni-sofia.bg
Issuer: SU ECC Identity Management CA
SANs: newr-gw.dce.uni-sofia.bg
Subject: newr-gw.dce.uni-sofia.bg
Issuer: SU ECC Identity Management CA
SANs: newr-gw.dce.uni-sofia.bg
Subject: *.uni-sofia.bg
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.uni-sofia.bg, uni-sofia.bg
Subject: *.uni-sofia.bg
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.uni-sofia.bg, uni-sofia.bg
Subject: node2.unite.uni-sofia.bg
Issuer: UNITe ECC CA
SANs: cockpit.node2.unite.uni-sofia.bg, node2.unite.uni-sofia.bg
Subject: aptitude.w3c.fmi.uni-sofia.bg
Issuer: R13
SANs: aptitude.w3c.fmi.uni-sofia.bg
Subject: house-gw.dce.uni-sofia.bg
Issuer: SU ECC Identity Management CA
SANs: house-gw.dce.uni-sofia.bg
Subject: bbb-node1.elearn.uni-sofia.bg
Issuer: R12
SANs: bbb-node1.elearn.uni-sofia.bg
Subject: quantum.phys.uni-sofia.bg
Issuer: quantum.phys.uni-sofia.bg
SANs: quantum.phys.uni-sofia.bg
Subject: *.fmi.uni-sofia.bg
Issuer: Sectigo RSA Domain Validation Secure Server CA
SANs: *.fmi.uni-sofia.bg, fmi.uni-sofia.bg
Subject: mail.slav.uni-sofia.bg
Issuer: R13
SANs: mail.slav.uni-sofia.bg
Subject: *.uni-sofia.bg
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.uni-sofia.bg, uni-sofia.bg
Subject: house-gw.dce.uni-sofia.bg
Issuer: SU ECC Identity Management CA
SANs: house-gw.dce.uni-sofia.bg
Subject: docs.unite.uni-sofia.bg
Issuer: R12
SANs: docs.unite.uni-sofia.bg
Subject: atomic.phys.uni-sofia.bg
Issuer: E7
SANs: atomic.phys.uni-sofia.bg
Subject: students.it.fmi.uni-sofia.bg
Issuer: R12
SANs: mysql.students.it.fmi.uni-sofia.bg, students.it.fmi.uni-sofia.bg
Subject: bbb.e-center.uni-sofia.bg
Issuer: R12
SANs: bbb.e-center.uni-sofia.bg

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.

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
A 62.44.96.51 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420
CAA 0 issue "sectigo.com" 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420
AAAA 2001:67c:20d0::51 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420
NS ns2.uni-sofia.bg 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420
CAA 0 issuewild "sectigo.com" 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420
NS ns1.uni-sofia.bg 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420
MX 5 zimbra.uni-sofia.bg 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420
CAA 0 issue "digicert.com" 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420
TXT v=spf1 ip4:62.44.96.4/32 ip4:62.44.96.15/32 ip4:62.44.96.70/32 ip4:62.44.96.81/32 ip4:62.44.97.93/32 ip4:62.44.97.94/32 ip6:2001:67c:20d1:97::7d/128 ip6:2001:67c:20d0::4/128 ip6:2001:67c:20d0::15/128 ip6:2001:67c:20d1:97::7e/128 ip4:62.44.96.122/32 ip6:2001:67c:20d0::122/128 ip6:2001:67c:20d0::70/128 ip6:2001:67c:20d0::81/128 -all 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420
CAA 0 issuewild "comodoca.com" 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420
NS ns.digsys.bg 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420
CAA 0 issue "letsencrypt.org" 2026-05-26 16:18:06.343 2026-07-24 16:59:50.420