Check-Host.cc

Domain

flu.cc

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

Run a live full scan of flu.cc

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
AAAA
MX
1 mx4.mxcomet.com, 10 mx4.mxstorm.com
NS
ns1.dyna-ns.net, ns2.dyna-ns.net
TXT
v=spf1 +a +mx -all
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.

b167ff95df816b67… sectigo · elephant2026h1
Subject: flu.cc
Issuer: R13
SANs: flu.cc
Valid: 2025-10-20 23:41:30 → 2026-01-18 23:41:29
b167ff95df816b67… cloudflare · nimbus2026
Subject: flu.cc
Issuer: R13
SANs: flu.cc
Valid: 2025-10-20 23:41:30 → 2026-01-18 23:41:29

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
NS ns2.dyna-ns.net 2026-06-02 02:09:23.865 2026-06-25 10:23:09.677
MX 10 mx4.mxstorm.com 2026-06-02 02:09:23.865 2026-06-25 10:23:09.677
NS ns1.dyna-ns.net 2026-06-02 02:09:23.865 2026-06-25 10:23:09.677
TXT v=spf1 +a +mx -all 2026-06-02 02:09:23.865 2026-06-25 10:23:09.677
MX 1 mx4.mxcomet.com 2026-06-02 02:09:23.865 2026-06-25 10:23:09.677