Check-Host.cc

Domain

www.gnu.org

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

Run a live full scan of www.gnu.org

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
209.51.188.116
AAAA
2001:470:142:5::116
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

Subject: wildebeest1p.gnu.org
Issuer: R12
SANs: classpath.org, digitalspeech.org, donate.digitalspeech.org, dotgnu.org, emacs.org, glibc.gnu.org, gnewsense.org, gnu.org, gnukids.org, gplfaq.org, hurd.gnu.org, ipv6.nongnu.org, playfreedom.org, playogg.com, playogg.org, upgradefromwindows.com, upgradefromwindows8.org, vcdimager.org, wildebeest.ipv6.gnu.org, wildebeest1p.gnu.org, www.classpath.org, www.digitalspeech.org, www.emacs.org, www.gnu.org, www.gnukids.org, www.hurd.gnu.org, www.ipv6.gnu.org, www.ipv6.nongnu.org, www.nongnu.org, www.playfreedom.org, www.playogg.com, www.upgradefromwindows.com, www.upgradefromwindows8.org, www6.gnu.org
Subject: wildebeest1p.gnu.org
Issuer: R12
SANs: classpath.org, digitalspeech.org, donate.digitalspeech.org, dotgnu.org, emacs.org, glibc.gnu.org, gnewsense.org, gnu.org, gnukids.org, gplfaq.org, hurd.gnu.org, ipv6.nongnu.org, playfreedom.org, playogg.com, playogg.org, upgradefromwindows.com, upgradefromwindows8.org, vcdimager.org, wildebeest.ipv6.gnu.org, wildebeest1p.gnu.org, www.classpath.org, www.digitalspeech.org, www.emacs.org, www.gnu.org, www.gnukids.org, www.hurd.gnu.org, www.ipv6.gnu.org, www.ipv6.nongnu.org, www.nongnu.org, www.playfreedom.org, www.playogg.com, www.upgradefromwindows.com, www.upgradefromwindows8.org, www6.gnu.org
Subject: wildebeest1p.gnu.org
Issuer: R12
SANs: classpath.org, digitalspeech.org, donate.digitalspeech.org, dotgnu.org, emacs.org, glibc.gnu.org, gnewsense.org, gnu.org, gnukids.org, gplfaq.org, hurd.gnu.org, ipv6.nongnu.org, playfreedom.org, playogg.com, playogg.org, upgradefromwindows.com, upgradefromwindows8.org, vcdimager.org, wildebeest.ipv6.gnu.org, wildebeest1p.gnu.org, www.classpath.org, www.digitalspeech.org, www.emacs.org, www.gnu.org, www.gnukids.org, www.hurd.gnu.org, www.ipv6.gnu.org, www.ipv6.nongnu.org, www.nongnu.org, www.playfreedom.org, www.playogg.com, www.upgradefromwindows.com, www.upgradefromwindows8.org, www6.gnu.org
Subject: wildebeest1p.gnu.org
Issuer: R12
SANs: classpath.org, digitalspeech.org, donate.digitalspeech.org, dotgnu.org, emacs.org, glibc.gnu.org, gnewsense.org, gnu.org, gnukids.org, gplfaq.org, hurd.gnu.org, ipv6.nongnu.org, playfreedom.org, playogg.com, playogg.org, upgradefromwindows.com, upgradefromwindows8.org, vcdimager.org, wildebeest.ipv6.gnu.org, wildebeest1p.gnu.org, www.classpath.org, www.digitalspeech.org, www.emacs.org, www.gnu.org, www.gnukids.org, www.hurd.gnu.org, www.ipv6.gnu.org, www.ipv6.nongnu.org, www.nongnu.org, www.playfreedom.org, www.playogg.com, www.upgradefromwindows.com, www.upgradefromwindows8.org, www6.gnu.org
Subject: wildebeest1p.gnu.org
Issuer: R12
SANs: classpath.org, digitalspeech.org, donate.digitalspeech.org, dotgnu.org, emacs.org, glibc.gnu.org, gnewsense.org, gnu.org, gnukids.org, gplfaq.org, hurd.gnu.org, ipv6.nongnu.org, playfreedom.org, playogg.com, playogg.org, upgradefromwindows.com, upgradefromwindows8.org, vcdimager.org, wildebeest.ipv6.gnu.org, wildebeest1p.gnu.org, www.classpath.org, www.digitalspeech.org, www.emacs.org, www.gnu.org, www.gnukids.org, www.hurd.gnu.org, www.ipv6.gnu.org, www.ipv6.nongnu.org, www.nongnu.org, www.playfreedom.org, www.playogg.com, www.upgradefromwindows.com, www.upgradefromwindows8.org, www6.gnu.org

IPs Citing This Domain

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

31.3.91.100:443 href · ×30
185.76.241.132:80 href · ×19
193.47.60.216:80 href · ×19
209.51.188.87:443 href · ×18
87.120.216.242:443 href · ×16
91.142.73.23:443 href · ×16
176.66.90.224:80 href · ×15
80.66.85.84:80 href · ×15
176.66.88.13:80 href · ×10
189.114.228.106:80 href · ×8
54.88.206.40:80 href · ×8
217.178.102.165:443 href · ×7
138.2.41.194:80 href · ×6
116.80.78.250:443 href · ×6
195.134.65.52:443 href · ×6
45.33.54.236:80 href · ×6
186.248.208.17:443 href · ×6
188.45.203.168:80 href · ×5
176.66.86.190:80 href · ×5
212.23.5.179:443 href · ×5
185.139.69.7:80 href · ×5
188.45.203.167:80 href · ×5
139.144.51.22:443 href · ×5
90.152.150.52:80 href · ×5
212.23.5.179:80 href · ×5
176.66.92.149:80 href · ×5
188.45.203.179:80 href · ×5
128.22.26.107:8888 href · ×4
216.230.233.145:443 href · ×4
91.99.219.91:443 href · ×4
199.94.60.218:80 href · ×4
141.244.188.77:443 href · ×4
185.173.93.118:443 href · ×4
210.156.166.104:80 href · ×4
103.22.248.106:80 href · ×4
13.231.184.73:80 href · ×4
60.249.22.173:80 href · ×4
128.22.21.148:8888 href · ×4
85.214.63.123:443 href · ×4
128.22.22.84:8888 href · ×4
35.77.141.50:80 href · ×4
183.76.81.126:8080 href · ×4
37.60.241.49:443 href · ×4
144.31.165.10:8080 href · ×4
199.94.60.218:443 href · ×4
176.34.18.198:80 href · ×4
111.33.89.54:80 href · ×4
18.183.2.194:80 href · ×4
171.66.3.38:443 href · ×4
218.219.231.184:80 href · ×4

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

Domain timeline pending

Passive-DNS history accumulates as our forward-DNS crawler observes A/AAAA/MX/NS/TXT records over time.