Check-Host.cc
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Domain

4fridum.workers.dev

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

DNS Check HTTP Check Run Full Scan .dev TLD

Run a live full scan of 4fridum.workers.dev

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
10
A/AAAA targets
Subdomains
5
CT + scan + body
Record Types
1
seen in DNS
Observed Certs
10
in our scans

DNS Records

A
—
AAAA
—
MX
—
NS
carioca.ns.cloudflare.com, rodney.ns.cloudflare.com
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

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
worker.4fridum.workers.dev
188.114.97.0 2a06:98c1:3121::3 2a06:98c1:3120:: 188.114.96.3 +4
2026-08-10 00:43:43.670
soft-wind-b498.4fridum.workers.dev
188.114.96.0 188.114.97.0 2606:4700:3032::6815:939 2606:4700:3032::ac43:9f21
2026-08-11 04:49:43.961
4fridum.workers.dev DNS pending —

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.

33fff6ff164163a9… google · argon2026h2
Subject: 4fridum.workers.dev
Issuer: YE2
SANs: *.4fridum.workers.dev, 4fridum.workers.dev
Valid: 2026-08-15 16:36:13 → 2026-11-13 16:36:12
e2140ad7fbd80005… cloudflare · nimbus2026
Subject: 4fridum.workers.dev
Issuer: YE2
SANs: *.4fridum.workers.dev, 4fridum.workers.dev
Valid: 2026-08-15 16:36:13 → 2026-11-13 16:36:12
97f1f613c3f57d89… cloudflare · nimbus2026
Subject: 4fridum.workers.dev
Issuer: WE1
SANs: 4fridum.workers.dev, *.worker.4fridum.workers.dev
Valid: 2026-08-09 00:27:41 → 2026-11-07 01:27:21
863b403a8d65f217… digicert · wyvern2026h2
Subject: 4fridum.workers.dev
Issuer: WR1
SANs: 4fridum.workers.dev, *.worker.4fridum.workers.dev
Valid: 2026-08-09 00:27:15 → 2026-11-07 01:26:58
85724b9f3f200649… digicert · wyvern2026h2
Subject: 4fridum.workers.dev
Issuer: WE1
SANs: 4fridum.workers.dev, *.worker.4fridum.workers.dev
Valid: 2026-08-09 00:12:53 → 2026-11-07 01:12:34
496b9fe2b748d46b… digicert · wyvern2026h2
Subject: 4fridum.workers.dev
Issuer: WR1
SANs: 4fridum.workers.dev, *.worker.4fridum.workers.dev
Valid: 2026-08-09 00:12:27 → 2026-11-07 01:09:49
d9eab57573420b4e… google · argon2026h2
Subject: 4fridum.workers.dev
Issuer: WE1
SANs: 4fridum.workers.dev, *.soft-wind-b498.4fridum.workers.dev
Valid: 2026-08-08 03:26:37 → 2026-11-06 04:25:52
34bffd069d7202e1… digicert · wyvern2026h2
Subject: 4fridum.workers.dev
Issuer: WR1
SANs: 4fridum.workers.dev, *.soft-wind-b498.4fridum.workers.dev
Valid: 2026-08-08 03:25:46 → 2026-11-06 04:25:03
6e1ec875ec4696b4… google · xenon2026h2
Subject: 4fridum.workers.dev
Issuer: WE1
SANs: 4fridum.workers.dev, *.soft-wind-b498.4fridum.workers.dev
Valid: 2026-08-08 03:11:53 → 2026-11-06 04:11:50
978d6ca2e78ea932… digicert · wyvern2026h2
Subject: 4fridum.workers.dev
Issuer: WR1
SANs: 4fridum.workers.dev, *.soft-wind-b498.4fridum.workers.dev
Valid: 2026-08-08 03:11:44 → 2026-11-06 04:07:40

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 carioca.ns.cloudflare.com 2026-08-09 20:25:43.661 2026-08-16 15:25:45.484
NS rodney.ns.cloudflare.com 2026-08-09 20:25:43.661 2026-08-16 15:25:45.484