Check-Host.cc

Domain

docs.citrix.com

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

Run a live full scan of docs.citrix.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
AAAA
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.

5.9.1.221:80 href · ×6
60.199.223.81:80 href · ×4
208.69.56.140:443 href · ×4
206.124.225.58:443 href · ×4
148.135.0.66:80 href · ×4
211.51.19.21:443 href · ×4
37.140.193.95:80 href · ×4
74.200.22.45:443 href · ×4
220.85.11.119:443 href · ×4
131.221.97.18:80 href · ×4
60.199.224.17:80 href · ×4
118.69.168.125:80 href · ×4
169.45.205.150:443 href · ×4
200.201.139.82:80 href · ×4
189.176.66.125:80 href · ×2
45.237.160.134:80 href · ×2
23.227.154.15:443 href · ×2
170.84.79.70:443 href · ×2
45.160.228.162:80 href · ×2
185.23.214.146:80 href · ×2
176.56.224.18:80 href · ×2
45.191.160.242:80 href · ×2
173.208.241.106:443 href · ×2
91.219.210.125:80 href · ×2
133.125.1.197:443 href · ×2
89.218.23.138:443 href · ×2
23.111.143.146:443 href · ×2
138.0.136.150:443 href · ×2
107.150.45.218:443 href · ×2
122.155.210.4:443 href · ×2
45.234.128.50:443 href · ×2
200.0.212.161:443 href · ×2
60.199.223.97:443 href · ×2
64.150.180.17:443 href · ×2
169.48.211.161:443 href · ×2
209.15.8.214:443 href · ×2
23.224.220.130:443 href · ×2
187.152.130.103:443 href · ×2
93.90.219.58:80 href · ×2
91.221.78.36:443 href · ×2
96.64.183.81:443 href · ×2
62.69.72.112:443 href · ×2
37.140.193.38:443 href · ×2
200.139.41.5:80 href · ×2
170.84.79.70:80 href · ×2
211.10.131.211:443 href · ×2
147.91.4.68:80 href · ×2
23.227.136.138:80 href · ×2
23.227.136.134:443 href · ×2
212.37.105.221:443 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.

CT-Log Evidence

Certificates from public Certificate Transparency logs whose subject or SAN names this domain — including historic certs we never observed live.

92ef046785a9a3d2… google · xenon2026h2
Subject: docs.citrix.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: docs.citrix.com, www.docs.citrix.com
Valid: 2026-03-16 00:00:00 → 2026-09-30 23:59:59
963ed4ca67d436cb… google · xenon2026h2
Subject: docs.citrix.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: docs.citrix.com, www.docs.citrix.com
Valid: 2026-03-16 00:00:00 → 2026-09-30 23:59:59

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
AAAA 2a05:d014:58f:6200::1f6 2026-05-25 22:02:50.525 2026-07-27 21:32:57.483
A 15.197.167.90 2026-05-25 22:02:50.525 2026-07-28 16:46:46.383
AAAA 2a05:d014:58f:6200::1f5 2026-05-25 22:02:50.525 2026-07-27 21:32:57.483
A 3.33.186.135 2026-05-25 22:02:50.525 2026-07-28 16:46:46.383
AAAA 2600:1f16:1a4:a001::1f5 2026-05-26 10:08:55.474 2026-06-23 14:11:39.504
AAAA 2600:1f16:1a4:a001::1f6 2026-05-26 10:08:55.474 2026-06-23 14:11:39.504
AAAA 2a05:d01c:9e6:f102::1f5 2026-06-14 22:08:58.337 2026-07-28 16:46:46.383
AAAA 2600:1f11:870:e601::1f5 2026-07-21 15:56:06.425 2026-07-21 15:56:06.425