Check-Host.cc

Domain

secure.facebook.com

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

Run a live full scan of secure.facebook.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
13
A/AAAA targets
Subdomains
CT + scan + body
Record Types
3
seen in DNS
Observed Certs
502
in our scans

DNS Records

A
157.240.0.5, 157.240.253.10, 157.240.27.14, 157.240.9.14, 57.144.222.139, 57.144.244.139, 57.144.248.139
AAAA
2a03:2880:f028:d:face:b00c:0:2b80, 2a03:2880:f03f:e:face:b00c:0:2b80, 2a03:2880:f083:10b:face:b00c:0:2b80, 2a03:2880:f084:104:face:b00c:0:2b80, 2a03:2880:f36f:8b:face:b00c:0:2b80, 2a03:2880:f37a:8b:face:b00c:0:2b80
MX
NS
TXT
v=spf1 a ~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

Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com
Subject: *.secure.facebook.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.secure.facebook.com, secure.facebook.com

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 157.240.253.10 2026-06-02 16:54:40.408 2026-06-18 00:41:01.456
AAAA 2a03:2880:f36f:8b:face:b00c:0:2b80 2026-06-02 16:54:40.408 2026-07-31 03:52:56.144
TXT v=spf1 a ~all 2026-06-02 16:59:35.354 2026-07-31 03:52:56.144
A 57.144.222.139 2026-06-02 16:59:35.354 2026-07-31 03:52:56.144
AAAA 2a03:2880:f03f:e:face:b00c:0:2b80 2026-06-18 00:41:01.456 2026-06-19 14:36:01.059
AAAA 2a03:2880:f37a:8b:face:b00c:0:2b80 2026-06-18 22:47:43.179 2026-06-23 22:38:59.272
A 157.240.27.14 2026-06-19 14:36:01.059 2026-07-31 03:51:37.464
A 57.144.244.139 2026-06-20 23:25:59.610 2026-06-21 00:19:06.625
AAAA 2a03:2880:f083:10b:face:b00c:0:2b80 2026-06-21 00:19:06.625 2026-06-21 00:19:06.625
AAAA 2a03:2880:f084:104:face:b00c:0:2b80 2026-06-21 00:56:09.263 2026-07-24 03:12:47.996
A 157.240.0.5 2026-06-21 00:56:09.263 2026-06-21 00:56:09.263
A 57.144.248.139 2026-06-22 18:32:56.734 2026-06-22 18:32:56.734
AAAA 2a03:2880:f028:d:face:b00c:0:2b80 2026-07-14 22:21:39.355 2026-07-31 01:02:37.406
A 157.240.9.14 2026-07-15 16:33:52.479 2026-07-31 01:02:37.406