Check-Host.cc

Domain

flagcdn.com

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

Run a live full scan of flagcdn.com

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

DNS Records

A
104.21.31.228, 172.67.180.104
AAAA
2606:4700:3030::ac43:b468, 2606:4700:3033::6815:1fe4, 2606:4700:3036::6815:1fe4
MX
24 linda.mx.cloudflare.net, 43 isaac.mx.cloudflare.net, 49 amir.mx.cloudflare.net
NS
elle.ns.cloudflare.com, eric.ns.cloudflare.com
TXT
ahrefs-site-verification_85a74aa90e852dd7258e2c4eecd169428685c24aa6175c376f5d8e549fb898b1, google-site-verification=Cyxao5mQcXzdm3vjqKX_5hLw_JvTOaembEevEioCC60, 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

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.

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 104.21.31.228 2026-05-25 21:56:50.553 2026-07-28 18:36:19.852
A 172.67.180.104 2026-05-25 21:56:50.553 2026-07-28 18:36:19.852
AAAA 2606:4700:3036::6815:1fe4 2026-05-25 21:56:50.553 2026-06-22 18:27:36.562
AAAA 2606:4700:3030::ac43:b468 2026-05-25 21:56:50.553 2026-07-28 18:36:19.852
TXT v=spf1 include:_spf.mx.cloudflare.net ~all 2026-05-25 23:59:40.866 2026-07-28 18:36:19.852
NS elle.ns.cloudflare.com 2026-05-25 23:59:40.866 2026-07-28 18:36:19.852
TXT ahrefs-site-verification_85a74aa90e852dd7258e2c4eecd169428685c24aa6175c376f5d8e549fb898b1 2026-05-25 23:59:40.866 2026-07-28 18:36:19.852
MX 43 isaac.mx.cloudflare.net 2026-05-25 23:59:40.866 2026-07-28 18:36:19.852
TXT google-site-verification=Cyxao5mQcXzdm3vjqKX_5hLw_JvTOaembEevEioCC60 2026-05-25 23:59:40.866 2026-07-28 18:36:19.852
NS eric.ns.cloudflare.com 2026-05-25 23:59:40.866 2026-07-28 18:36:19.852
MX 24 linda.mx.cloudflare.net 2026-05-25 23:59:40.866 2026-07-28 18:36:19.852
MX 49 amir.mx.cloudflare.net 2026-05-25 23:59:40.866 2026-07-28 18:36:19.852
AAAA 2606:4700:3033::6815:1fe4 2026-06-22 21:01:26.138 2026-07-28 18:36:19.852