Check-Host.cc
Domain

404lab.cc

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

Run a live full scan of 404lab.cc

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

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Hosting IPs
11
A/AAAA targets
Subdomains
5
CT + scan + body
Record Types
3
seen in DNS
Observed Certs
1
in our scans

DNS Records

A
AAAA
MX
51 route2.mx.cloudflare.net, 6 route3.mx.cloudflare.net, 89 route1.mx.cloudflare.net
NS
guy.ns.cloudflare.com, janet.ns.cloudflare.com
TXT
v=spf1 include:_spf.mx.cloudflare.net ~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

Every subdomain we know about — harvested from CT-log SANs, scan-observed certs and HTML body references — paired with its current A/AAAA target.

Subdomain Resolves to Last seen
bark.404lab.cc 2026-08-21 05:22:26.261
twikoo.404lab.cc 2026-08-18 09:43:45.320
bing.404lab.cc 2026-08-10 09:37:43.707
404lab.cc DNS pending

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.

aa1ef88a68e2e1e9… cloudflare · nimbus2026
Subject: 404lab.cc
Issuer: WE1
SANs: 404lab.cc, *.404lab.cc
Valid: 2026-08-29 14:01:01 → 2026-11-27 15:00:59

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
TXT v=spf1 include:_spf.mx.cloudflare.net ~all 2026-08-29 17:51:50.750 2026-08-29 17:51:50.750
MX 89 route1.mx.cloudflare.net 2026-08-29 17:51:50.750 2026-08-29 17:51:50.750
NS janet.ns.cloudflare.com 2026-08-29 17:51:50.750 2026-08-29 17:51:50.750
NS guy.ns.cloudflare.com 2026-08-29 17:51:50.750 2026-08-29 17:51:50.750
MX 6 route3.mx.cloudflare.net 2026-08-29 17:51:50.750 2026-08-29 17:51:50.750
MX 51 route2.mx.cloudflare.net 2026-08-29 17:51:50.750 2026-08-29 17:51:50.750