Check-Host.cc

Domain

sourceforge.net

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

Run a live full scan of sourceforge.net

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
82
A/AAAA targets
Subdomains
960
CT + scan + body
Record Types
6
seen in DNS
Observed Certs
17
in our scans

DNS Records

A
104.18.12.149, 104.18.13.149
AAAA
2606:4700::6812:c95, 2606:4700::6812:d95
MX
10 mx.sourceforge.net
NS
ns11.constellix.com, ns21.constellix.com, ns31.constellix.com, ns41.constellix.net, ns51.constellix.net, ns61.constellix.net
TXT
SourceForge, Inc., abuseipdb-verification=dvyMFAir, brave-ledger-verification=09845b65316c1613c72337595c391c4675fff6ae8923768232dc3f6c661af14b, ca3-1594c24430d2487fad7bceaec2fa251f, ca3-33e180a2afaa4c86951f4a8ad123e300, ca3-8b7801430b214be99a3325aab5d0d899, google-site-verification=HugCfmT_JOUQaz6xbszx1O9W3ccm_Dh5GiageK7egmM, tollbit-domain-verification=bae1f5123238c200f3429dba2556501be81cc1ab0b0f0692146e362a49979895
CNAME
CAA
0 iodef "mailto:siteops@slashdotmedia.com", 0 issue "amazon.com", 0 issue "digicert.com", 0 issue "letsencrypt.org", 0 issue "sectigo.com"

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.

69.138.249.22:80 href · ×109
178.217.100.199:80 href · ×18
88.218.121.85:443 href · ×18
90.156.230.96:80 href · ×18
107.173.51.178:80 href · ×18
172.104.95.92:443 href · ×10
152.69.186.6:80 href · ×10
139.180.189.123:443 href · ×10
92.63.107.191:443 href · ×9
165.22.224.181:80 href · ×9
184.68.250.254:80 href · ×9
69.164.203.166:443 href · ×8
62.212.239.37:80 href · ×8
62.212.239.38:80 href · ×8
160.99.1.246:443 href · ×7
35.157.152.90:443 href · ×7
18.204.51.62:443 href · ×7
158.58.172.148:443 href · ×7
209.97.137.93:443 href · ×7
138.195.128.137:8080 href · ×7
24.200.63.27:443 href · ×7
52.169.38.77:8081 href · ×7
195.201.55.238:443 href · ×7
35.189.122.208:443 href · ×7
104.252.89.227:80 href · ×6
107.175.219.254:443 href · ×6
159.69.249.166:443 href · ×6
141.76.46.138:443 href · ×6
173.45.245.159:8080 href · ×6
63.251.228.41:443 href · ×6
45.63.15.149:443 href · ×5
168.138.8.52:443 href · ×5
66.42.114.119:443 href · ×5
108.61.178.155:80 href · ×5
168.138.9.224:443 href · ×5
37.27.60.100:443 href · ×4
95.31.173.110:443 href · ×4
172.89.189.9:443 href · ×4
39.105.186.182:80 href · ×4
178.104.83.186:443 href · ×4
149.202.43.231:443 href · ×4
129.28.21.4:8081 href · ×4
187.85.75.85:80 href · ×4
49.12.103.227:8080 href · ×4
62.212.239.36:80 href · ×4
207.229.92.41:443 href · ×4
176.125.241.71:443 href · ×4
104.236.196.56:443 href · ×4
82.202.139.57:443 href · ×4
91.121.64.81:8080 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.

CT-Log Evidence

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

ff2f671818400815… digicert · wyvern2026h2
Subject: sourceforge.net
Issuer: Amazon RSA 2048 M03
SANs: sourceforge.net, sf.net, sourceforge.com, *.sourceforge.com, *.sf.net, *.sourceforge.net
Valid: 2025-07-14 00:00:00 → 2026-08-12 23:59:59
ff2f671818400815… cloudflare · nimbus2026
Subject: sourceforge.net
Issuer: Amazon RSA 2048 M03
SANs: sourceforge.net, sf.net, sourceforge.com, *.sourceforge.com, *.sf.net, *.sourceforge.net
Valid: 2025-07-14 00:00:00 → 2026-08-12 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 2606:4700::6812:d95 2026-05-25 21:56:50.553 2026-07-28 18:36:19.852
A 104.18.12.149 2026-05-25 21:56:50.553 2026-07-28 18:36:19.852
AAAA 2606:4700::6812:c95 2026-05-25 21:56:50.553 2026-07-28 18:36:19.852
A 104.18.13.149 2026-05-25 21:56:50.553 2026-07-28 18:36:19.852
NS ns11.constellix.com 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
NS ns41.constellix.net 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
TXT v=spf1 include:sparkpostmail.com include:servers.mcsv.net ip4:216.105.38.0/26 -all 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
CAA 0 iodef "mailto:siteops@slashdotmedia.com" 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
NS ns21.constellix.com 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
TXT ca3-8b7801430b214be99a3325aab5d0d899 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
CAA 0 issue "amazon.com" 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
TXT abuseipdb-verification=dvyMFAir 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
TXT ca3-1594c24430d2487fad7bceaec2fa251f 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
CAA 0 issue "sectigo.com" 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
NS ns31.constellix.com 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
NS ns61.constellix.net 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
CAA 0 issue "digicert.com" 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
TXT yandex-verification: eddadce308154a90 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
TXT tollbit-domain-verification=bae1f5123238c200f3429dba2556501be81cc1ab0b0f0692146e362a49979895 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
TXT google-site-verification=HugCfmT_JOUQaz6xbszx1O9W3ccm_Dh5GiageK7egmM 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
NS ns51.constellix.net 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
TXT ca3-33e180a2afaa4c86951f4a8ad123e300 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
TXT brave-ledger-verification=09845b65316c1613c72337595c391c4675fff6ae8923768232dc3f6c661af14b 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
TXT SourceForge, Inc. 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
CAA 0 issue "letsencrypt.org" 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852
MX 10 mx.sourceforge.net 2026-05-26 00:07:44.959 2026-07-28 18:36:19.852