Check-Host.cc
Domain

4fnet.org

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

Run a live full scan of 4fnet.org

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

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Hosting IPs
6
A/AAAA targets
Subdomains
17
CT + scan + body
Record Types
6
seen in DNS
Observed Certs
1
in our scans

DNS Records

A
104.26.2.203, 104.26.3.203, 172.67.72.81
AAAA
2606:4700:20::681a:2cb, 2606:4700:20::681a:3cb, 2606:4700:20::ac43:4851
MX
10 eforward1.registrar-servers.com, 10 eforward2.registrar-servers.com, 10 eforward3.registrar-servers.com, 15 eforward4.registrar-servers.com, 20 eforward5.registrar-servers.com
NS
holly.ns.cloudflare.com, hugh.ns.cloudflare.com
TXT
v=spf1 include:spf.easywp.com ~all, v=spf1 include:spf.efwd.registrar-servers.com ~all
CNAME
CAA
0 issue "comodoca.com", 0 issue "digicert.com; cansignhttpexchanges=yes", 0 issue "letsencrypt.org", 0 issue "pki.goog; cansignhttpexchanges=yes", 0 issue "ssl.com", 0 issuewild "comodoca.com", 0 issuewild "digicert.com; cansignhttpexchanges=yes", 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
4fnet.org 2026-08-30 00:51:13.841
www.4fnet.org 2026-08-21 05:41:31.526

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

No citing IPs found yet

As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.

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.

ef5467fb6bc3cfa4… google · xenon2026h2
Subject: 4fnet.org
Issuer: WE1
SANs: 4fnet.org, *.4fnet.org
Valid: 2026-07-29 17:14:42 → 2026-10-27 18:14:16

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
NS hugh.ns.cloudflare.com 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
CAA 0 issuewild "letsencrypt.org" 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
MX 15 eforward4.registrar-servers.com 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
TXT v=spf1 include:spf.easywp.com ~all 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
NS holly.ns.cloudflare.com 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
MX 20 eforward5.registrar-servers.com 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
MX 10 eforward1.registrar-servers.com 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
AAAA 2606:4700:20::681a:3cb 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
MX 10 eforward2.registrar-servers.com 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
MX 10 eforward3.registrar-servers.com 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
A 104.26.2.203 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
CAA 0 issue "ssl.com" 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
A 104.26.3.203 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
AAAA 2606:4700:20::681a:2cb 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
CAA 0 issuewild "digicert.com; cansignhttpexchanges=yes" 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
CAA 0 issuewild "ssl.com" 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
AAAA 2606:4700:20::ac43:4851 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
CAA 0 issue "digicert.com; cansignhttpexchanges=yes" 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
CAA 0 issuewild "comodoca.com" 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
TXT v=spf1 include:spf.efwd.registrar-servers.com ~all 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
CAA 0 issuewild "pki.goog; cansignhttpexchanges=yes" 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
CAA 0 issue "letsencrypt.org" 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
CAA 0 issue "comodoca.com" 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
CAA 0 issue "pki.goog; cansignhttpexchanges=yes" 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841
A 172.67.72.81 2026-05-31 18:44:51.117 2026-08-30 00:51:13.841