Check-Host.cc

Domain

b.sf-syn.com

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

Run a live full scan of b.sf-syn.com

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
4
A/AAAA targets
Subdomains
CT + scan + body
Record Types
2
seen in DNS
Observed Certs
6
in our scans

DNS Records

A
104.18.4.227, 104.18.5.227
AAAA
2606:4700::6812:4e3, 2606:4700::6812:5e3
MX
NS
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

Hosts whose HTML body references this domain. Strong signal for origin/mirror/embed discovery.

144.24.14.213:443 href · ×6
195.228.45.113:80 href · ×4
65.205.159.95:443 href · ×3
72.32.14.80:80 href · ×3
68.142.22.95:443 href · ×3
72.32.14.80:443 href · ×3
209.147.127.203:443 href · ×2
66.39.8.99:443 href · ×2
66.39.39.245:443 href · ×2
32.198.143.30:443 href · ×2
178.63.44.251:443 href · ×2
172.105.13.163:443 href · ×2
66.39.158.74:80 href · ×2
193.124.129.54:443 href · ×2
209.147.127.195:443 href · ×2
75.2.117.211:443 href · ×2
144.24.14.213:80 href · ×2
43.204.205.219:443 href · ×2
5.253.63.226:443 href · ×1
142.11.236.135:80 href · ×1
159.223.107.20:443 href · ×1
46.225.230.210:443 href · ×1
18.194.137.148:80 href · ×1
52.33.7.221:443 href · ×1
34.209.24.219:443 href · ×1
38.68.201.177:80 href · ×1
184.68.250.254:80 href · ×1
44.226.57.195:443 href · ×1
32.185.30.175:443 href · ×1
44.228.193.218:443 href · ×1

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
AAAA 2606:4700::6812:4e3 2026-05-26 03:28:26.010 2026-07-25 03:36:05.523
AAAA 2606:4700::6812:5e3 2026-05-26 03:28:26.010 2026-07-25 03:36:05.523
A 104.18.4.227 2026-05-26 03:28:26.010 2026-07-25 03:36:05.523
A 104.18.5.227 2026-05-26 03:28:26.010 2026-07-25 03:36:05.523