Check-Host.cc

Domain

fsfe.org

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

Run a live full scan of fsfe.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
22
A/AAAA targets
Subdomains
80
CT + scan + body
Record Types
7
seen in DNS
Observed Certs
8
in our scans

DNS Records

A
213.95.165.54, 31.24.147.87
AAAA
2001:780:215:1::54, 2a02:16d0:1004:5a00:f5f3::87
MX
20 mail3.fsfe.org, 5 mail2.fsfe.org
NS
geoffroy.fsfeurope.org, tennant.fsfeurope.org
TXT
v=spf1 mx ip4:217.69.89.128/26 ip4:188.172.205.112/28 ip4:213.95.165.48/28 ip4:31.24.147.80/28 ip4:142.132.236.94/32 ip6:2001:aa8:ffed::/48 ip6:2a00:11c0:d:1::/64 ip6:2001:780:215:1::/64 ip6:2a02:16d0:1004:5a00::/56 ip6:2a01:4f8:c17:f631::1/128 -all
CNAME
CAA
0 iodef "mailto:admin@fsfe.org", 0 issue "letsencrypt.org", 0 issuewild "letsencrypt.org"

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

Every subdomain we know about — harvested from CT-log SANs, scan-observed certs and HTML body references — paired with its current A/AAAA target.

Subdomain Resolves to Last seen
fsfe.org 2026-07-28 15:04:37.256
mail.fsfe.org 2026-05-26 19:48:44.513
www.fsfe.org 2026-06-15 04:41:39.660
blogs.fsfe.org 2026-06-23 18:17:07.818
collabora.fsfe.org 2026-06-15 15:09:40.069
conf.fsfe.org 2026-07-22 06:27:37.217
docs.fsfe.org 2026-07-22 08:29:57.545
git.fsfe.org 2026-07-22 08:29:57.545
mail3.fsfe.org 2026-05-26 19:48:44.513
media.fsfe.org 2026-07-27 02:26:18.361
meps.fsfe.org 2026-07-27 16:47:57.155
my.fsfe.org 2026-07-22 08:29:57.545
planet.fsfe.org 2026-07-20 04:02:26.036
proxy.jabber.fsfe.org 2026-06-20 18:26:22.858
quiz.fsfe.org 2026-07-21 11:36:47.154
sengi.fsfe.org 2026-06-01 07:07:43.803
sharepics.fsfe.org 2026-07-18 20:07:57.836
staging.keys.fsfe.org 2026-06-17 18:15:46.728
survey.fsfe.org 2026-06-18 00:14:40.537
vjud.jabber.fsfe.org 2026-06-21 08:01:03.227
www.blogs.fsfe.org 2026-06-23 18:17:07.818
ada.fsfe.org
1970-01-01 00:00:00.000
chat.fsfe.org
1970-01-01 00:00:00.000
cont1-plutex.drone.fsfe.org
1970-01-01 00:00:00.000
cont2-noris.drone.fsfe.org
1970-01-01 00:00:00.000
de.fsfe.org
1970-01-01 00:00:00.000
es.fsfe.org
1970-01-01 00:00:00.000
fellowship.fsfe.org
1970-01-01 00:00:00.000
fr.fsfe.org
1970-01-01 00:00:00.000
france.fsfe.org
1970-01-01 00:00:00.000
germany.fsfe.org
1970-01-01 00:00:00.000
it.fsfe.org
1970-01-01 00:00:00.000
italy.fsfe.org
1970-01-01 00:00:00.000
keys.fsfe.org
1970-01-01 00:00:00.000
matrix.fsfe.org
1970-01-01 00:00:00.000
minimal-docker.fsfe.org
1970-01-01 00:00:00.000
se.fsfe.org
1970-01-01 00:00:00.000
spain.fsfe.org
1970-01-01 00:00:00.000
sweden.fsfe.org
1970-01-01 00:00:00.000
test.fsfe.org
1970-01-01 00:00:00.000
turn.fsfe.org
1970-01-01 00:00:00.000
uk.fsfe.org
1970-01-01 00:00:00.000
webpreview.fsfe.org
1970-01-01 00:00:00.000
www.de.fsfe.org
1970-01-01 00:00:00.000
www.es.fsfe.org
1970-01-01 00:00:00.000
www.fr.fsfe.org
1970-01-01 00:00:00.000
www.france.fsfe.org
1970-01-01 00:00:00.000
www.germany.fsfe.org
1970-01-01 00:00:00.000
www.it.fsfe.org
1970-01-01 00:00:00.000
www.italy.fsfe.org
1970-01-01 00:00:00.000
www.planet.fsfe.org
1970-01-01 00:00:00.000
www.se.fsfe.org
1970-01-01 00:00:00.000
www.spain.fsfe.org
1970-01-01 00:00:00.000
www.sweden.fsfe.org
1970-01-01 00:00:00.000
www.uk.fsfe.org
1970-01-01 00:00:00.000
www3.fsfe.org
1970-01-01 00:00:00.000

Tech Stack

Tech detection pending

Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.

TLS Certificates

Subject: git.fsfe.org
Issuer: YR2
SANs: git.fsfe.org
Subject: conf.fsfe.org
Issuer: R12
SANs: conf.fsfe.org
Subject: collabora.fsfe.org
Issuer: R13
SANs: collabora.fsfe.org
Subject: mail3.fsfe.org
Issuer: E7
SANs: gadolin.fsfeurope.org, mail.fsfe.org, mail.fsfeurope.org, mail3.fsfe.org

IPs Citing This Domain

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

31.24.147.86:443 href · ×5
31.24.147.90:80 href · ×4
193.170.124.228:80 href · ×4
31.24.147.90:443 href · ×4
46.38.245.208:443 href · ×3
213.160.72.247:443 href · ×2
195.201.136.96:443 href · ×2
78.47.184.11:443 href · ×1
51.15.21.97:443 href · ×1
193.170.124.228:443 href · ×1
92.205.164.122:443 href · ×1
89.169.55.182:443 href · ×1
116.203.110.233:443 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
A 31.24.147.87 2026-05-25 21:56:50.553 2026-07-28 15:04:37.256
AAAA 2001:780:215:1::54 2026-05-25 21:56:50.553 2026-07-28 15:04:37.256
A 213.95.165.54 2026-05-25 21:56:50.553 2026-07-28 15:04:37.256
AAAA 2a02:16d0:1004:5a00:f5f3::87 2026-05-25 21:56:50.553 2026-07-28 15:04:37.256
NS geoffroy.fsfeurope.org 2026-05-26 02:38:03.884 2026-07-28 15:04:37.256
MX 20 mail3.fsfe.org 2026-05-26 02:38:03.884 2026-07-28 15:04:37.256
TXT v=spf1 mx ip4:217.69.89.128/26 ip4:188.172.205.112/28 ip4:213.95.165.48/28 ip4:31.24.147.80/28 ip4:142.132.236.94/32 ip6:2001:aa8:ffed::/48 ip6:2a00:11c0:d:1::/64 ip6:2001:780:215:1::/64 ip6:2a02:16d0:1004:5a00::/56 ip6:2a01:4f8:c17:f631::1/128 -all 2026-05-26 02:38:03.884 2026-07-28 15:04:37.256
SRV _xmpp-server._tcp 5 0 5269 jabber.fsfe.org 2026-05-26 02:38:03.884 2026-07-28 15:04:37.256
NS tennant.fsfeurope.org 2026-05-26 02:38:03.884 2026-07-28 15:04:37.256
MX 5 mail2.fsfe.org 2026-05-26 02:38:03.884 2026-07-28 15:04:37.256
CAA 0 iodef "mailto:admin@fsfe.org" 2026-05-26 02:38:03.884 2026-07-28 15:04:37.256
CAA 0 issuewild "letsencrypt.org" 2026-05-26 02:38:03.884 2026-07-28 15:04:37.256
CAA 0 issue "letsencrypt.org" 2026-05-26 02:38:03.884 2026-07-28 15:04:37.256
SRV _xmpp-client._tcp 5 0 5222 jabber.fsfe.org 2026-05-26 02:38:03.884 2026-07-28 15:04:37.256