Check-Host.cc
Domain

4ops.org

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

Run a live full scan of 4ops.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
4
A/AAAA targets
Subdomains
1
CT + scan + body
Record Types
5
seen in DNS
Observed Certs
3
in our scans

DNS Records

A
104.21.78.71, 172.67.217.219
AAAA
2606:4700:3031::6815:4e47, 2606:4700:3031::ac43:d9db
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
alaric.ns.cloudflare.com, liv.ns.cloudflare.com
TXT
google-site-verification=1QqA752WZk084Emg3qFhcDmJHzMrXgyCCDaIaUVGaSE, google-site-verification=Yw1VjxjejMAmGNy8raDq1d23_jNasWDlMejCqIABvuo, v=spf1 include:_spf.google.com ~all
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
4ops.org 2026-08-24 01:42:50.332

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.

7873d8fc47b455ae… google · xenon2026h2
Subject: 4ops.org
Issuer: Cloudflare TLS Issuing ECC CA 4
SANs: 4ops.org, *.4ops.org
Valid: 2026-08-25 06:40:46 → 2026-11-21 22:15:15
1af1a8361dd5972f… google · xenon2026h2
Subject: 4ops.org
Issuer: YE2
SANs: *.4ops.org, 4ops.org
Valid: 2026-08-23 20:31:11 → 2026-11-21 20:31:10
5acaf7cb4e76fb39… cloudflare · nimbus2026
Subject: 4ops.org
Issuer: YE2
SANs: *.4ops.org, 4ops.org
Valid: 2026-08-23 20:31:11 → 2026-11-21 20:31:10

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
TXT google-site-verification=Yw1VjxjejMAmGNy8raDq1d23_jNasWDlMejCqIABvuo 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
AAAA 2606:4700:3031::6815:4e47 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
TXT v=spf1 include:_spf.google.com ~all 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
NS liv.ns.cloudflare.com 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
AAAA 2606:4700:3031::ac43:d9db 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
NS alaric.ns.cloudflare.com 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
A 104.21.78.71 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
A 172.67.217.219 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
TXT google-site-verification=1QqA752WZk084Emg3qFhcDmJHzMrXgyCCDaIaUVGaSE 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
MX 5 alt2.aspmx.l.google.com 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
MX 10 alt4.aspmx.l.google.com 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
MX 1 aspmx.l.google.com 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
MX 5 alt1.aspmx.l.google.com 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332
MX 10 alt3.aspmx.l.google.com 2026-08-24 01:42:50.332 2026-08-24 01:42:50.332