Check-Host.cc
Domain

404-software.com

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

Run a live full scan of 404-software.com

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
5
A/AAAA targets
Subdomains
2
CT + scan + body
Record Types
5
seen in DNS
Observed Certs
3
in our scans

DNS Records

A
104.21.15.167, 172.67.163.36
AAAA
2606:4700:3031::6815:fa7, 2606:4700:3032::ac43:a324, 2606:4700:3036::ac43:a324
MX
1 aspmx.l.google.com, 10 alt3.aspmx.l.google.com, 10 alt4.aspmx.l.google.com, 5 alt1.aspmx.l.google.com, 5 alt2.aspmx.l.google.com
NS
hugh.ns.cloudflare.com, kate.ns.cloudflare.com
TXT
google-site-verification=2J8ssDLG59Qfh0B601JZHwRfCnRuAt6HA8-NOEohI4k
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.

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.

a3d7a6499e83e59c… google · xenon2026h2
Subject: 404-software.com
Issuer: YR1
SANs: 404-software.com
Valid: 2026-08-22 00:27:20 → 2026-11-20 00:27:19
566e03b81a45c1f1… google · argon2026h2
Subject: 404-software.com
Issuer: WE1
SANs: 404-software.com, *.404-software.com
Valid: 2026-08-11 10:22:02 → 2026-11-09 11:21:51
e454445dfdbd1d24… digicert · wyvern2026h2
Subject: 404-software.com
Issuer: WE1
SANs: 404-software.com, *.404-software.com
Valid: 2026-08-11 07:56:58 → 2026-11-09 08:55:35

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 2026-06-06 02:20:49.541 2026-08-21 05:22:26.261
A 104.21.15.167 2026-06-06 02:20:49.541 2026-08-21 05:22:26.261
TXT google-site-verification=2J8ssDLG59Qfh0B601JZHwRfCnRuAt6HA8-NOEohI4k 2026-06-06 02:20:49.541 2026-08-21 05:22:26.261
AAAA 2606:4700:3031::6815:fa7 2026-06-06 02:20:49.541 2026-08-21 05:22:26.261
MX 5 alt2.aspmx.l.google.com 2026-06-06 02:20:49.541 2026-08-21 05:22:26.261
MX 10 alt4.aspmx.l.google.com 2026-06-06 02:20:49.541 2026-08-21 05:22:26.261
MX 1 aspmx.l.google.com 2026-06-06 02:20:49.541 2026-08-21 05:22:26.261
A 172.67.163.36 2026-06-06 02:20:49.541 2026-08-21 05:22:26.261
MX 5 alt1.aspmx.l.google.com 2026-06-06 02:20:49.541 2026-08-21 05:22:26.261
MX 10 alt3.aspmx.l.google.com 2026-06-06 02:20:49.541 2026-08-21 05:22:26.261
NS kate.ns.cloudflare.com 2026-06-06 02:20:49.541 2026-08-21 05:22:26.261
AAAA 2606:4700:3036::ac43:a324 2026-06-06 02:20:49.541 2026-06-19 17:14:28.855
AAAA 2606:4700:3032::ac43:a324 2026-08-21 05:22:26.261 2026-08-21 05:22:26.261