Check-Host.cc

Domain

customers.gitlab.com

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

Run a live full scan of customers.gitlab.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
A/AAAA targets
Subdomains
CT + scan + body
Record Types
seen in DNS
Observed Certs
in our scans

DNS Records

A
104.18.39.11, 172.64.148.245
AAAA
2606:4700:4406::6812:270b, 2a06:98c1:3105::ac40:94f5
MX
10 mxa.mailgun.org, 10 mxb.mailgun.org
NS
TXT
v=spf1 include:mailgun.org ~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: CloudFlare Origin Certificate
Issuer: C=US, O=CloudFlare\, Inc., OU=CloudFlare Origin SSL Certificate Authority, L=San Francisco, ST=California
SANs: customers.gitlab.com, customers2.gitlab.com
Subject: CloudFlare Origin Certificate
Issuer: C=US, O=CloudFlare\, Inc., OU=CloudFlare Origin SSL Certificate Authority, L=San Francisco, ST=California
SANs: customers.gitlab.com, customers2.gitlab.com

IPs Citing This Domain

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

201.24.207.68:443 href · ×2
151.244.184.120:443 href · ×2
89.30.205.51:443 href · ×2
201.24.207.224:443 href · ×2
201.14.210.115:443 href · ×2
201.14.210.184:443 href · ×2
191.219.30.223:443 href · ×2
201.24.207.218:443 href · ×2
201.24.207.12:443 href · ×2
16.5.230.23:443 href · ×2
191.219.30.182:443 href · ×2
201.24.207.89:443 href · ×2
89.30.205.204:443 href · ×2
151.244.184.102:443 href · ×2
201.14.210.228:443 href · ×2
89.30.205.222:443 href · ×2
151.246.174.110:443 href · ×2
191.219.30.114:443 href · ×2
89.30.205.70:443 href · ×2
201.14.210.33:443 href · ×2
89.30.205.226:443 href · ×2
16.5.230.11:443 href · ×2
89.30.142.96:443 href · ×2
191.219.30.206:443 href · ×2
89.30.205.134:443 href · ×2
151.246.174.17:443 href · ×2
201.24.207.14:443 href · ×2
213.189.27.84:443 href · ×2
201.24.207.83:443 href · ×2
201.14.210.57:443 href · ×2
89.30.205.186:443 href · ×2
201.14.210.4:443 href · ×2
201.14.210.253:443 href · ×2
201.14.210.207:443 href · ×2
201.24.207.125:443 href · ×2
151.244.184.174:443 href · ×2
16.5.230.26:443 href · ×2
201.14.210.220:443 href · ×2
201.14.210.101:443 href · ×2
213.189.27.50:443 href · ×2
89.30.142.21:443 href · ×2
89.30.205.66:443 href · ×2
189.73.31.9:443 href · ×2
16.5.115.188:443 href · ×2

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
MX 10 mxb.mailgun.org 2026-07-17 01:13:06.842 2026-07-28 18:45:26.399
TXT v=spf1 include:mailgun.org ~all 2026-07-17 01:13:06.842 2026-07-28 18:45:26.399
A 172.64.148.245 2026-07-17 01:13:06.842 2026-07-28 18:45:26.399
A 104.18.39.11 2026-07-17 01:13:06.842 2026-07-28 18:45:26.399
MX 10 mxa.mailgun.org 2026-07-17 01:13:06.842 2026-07-28 18:45:26.399
AAAA 2606:4700:4406::6812:270b 2026-07-17 01:13:06.842 2026-07-28 18:45:26.399
AAAA 2a06:98c1:3105::ac40:94f5 2026-07-17 01:13:06.842 2026-07-28 18:45:26.399