Check-Host.cc

Domain

app.register.com

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

Run a live full scan of app.register.com

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

DNS Records

A
104.18.35.182, 172.64.152.74
AAAA
2606:4700:4404::ac40:984a, 2606:4700:4405::6812:23b6, 2606:4700:4407::6812:23b6, 2606:4700:4407::ac40:984a
MX
NS
nile.ns.cloudflare.com, sima.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

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

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.

10192a7816194f71… sectigo · elephant2026h1
Subject: app.register.com
Issuer: E7
SANs: *.app.register.com, app.register.com
Valid: 2026-01-17 09:52:43 → 2026-04-17 09:52:42
fddf4aa48ff94bb0… sectigo · elephant2026h1
Subject: app.register.com
Issuer: R13
SANs: *.app.register.com, app.register.com
Valid: 2026-01-17 09:52:28 → 2026-04-17 09:52:27
6a8a6f2d21e903e8… sectigo · elephant2026h1
Subject: app.register.com
Issuer: WE1
SANs: app.register.com, *.app.register.com
Valid: 2026-01-09 22:12:48 → 2026-04-09 23:12:45
e5fbf7b4eb67184e… sectigo · elephant2026h1
Subject: app.register.com
Issuer: WE1
SANs: app.register.com, *.app.register.com
Valid: 2026-01-09 22:12:48 → 2026-04-09 23:12:45
1b54a7f7afffa167… cloudflare · nimbus2026
Subject: app.register.com
Issuer: E8
SANs: *.app.register.com, app.register.com
Valid: 2025-11-19 13:08:36 → 2026-02-17 13:08:35
1b54a7f7afffa167… sectigo · elephant2026h1
Subject: app.register.com
Issuer: E8
SANs: *.app.register.com, app.register.com
Valid: 2025-11-19 13:08:36 → 2026-02-17 13:08:35
e4047d2890a8ccd9… cloudflare · nimbus2026
Subject: app.register.com
Issuer: R12
SANs: *.app.register.com, app.register.com
Valid: 2025-11-19 08:16:41 → 2026-02-17 08:16:40
f03696df4c44f0cd… cloudflare · nimbus2026
Subject: app.register.com
Issuer: R12
SANs: *.app.register.com, app.register.com
Valid: 2025-11-19 08:16:41 → 2026-02-17 08:16:40
e4047d2890a8ccd9… sectigo · elephant2026h1
Subject: app.register.com
Issuer: R12
SANs: *.app.register.com, app.register.com
Valid: 2025-11-19 08:16:41 → 2026-02-17 08:16:40
be0d00309a10a8c2… sectigo · elephant2026h1
Subject: app.register.com
Issuer: WE1
SANs: app.register.com, *.app.register.com
Valid: 2025-11-11 21:14:14 → 2026-02-09 22:13:58

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 2606:4700:4407::6812:23b6 2026-06-02 20:44:25.578 2026-06-16 22:06:39.899
A 104.18.35.182 2026-06-02 20:44:25.578 2026-07-16 17:22:01.799
A 172.64.152.74 2026-06-02 20:44:25.578 2026-07-16 17:22:01.799
AAAA 2606:4700:4404::ac40:984a 2026-06-02 20:44:25.578 2026-06-16 22:06:39.899
NS nile.ns.cloudflare.com 2026-06-02 21:19:00.830 2026-06-16 22:06:39.899
NS sima.ns.cloudflare.com 2026-06-02 21:19:00.830 2026-06-16 22:06:39.899
AAAA 2606:4700:4407::ac40:984a 2026-07-16 17:22:01.799 2026-07-16 17:22:01.799
AAAA 2606:4700:4405::6812:23b6 2026-07-16 17:22:01.799 2026-07-16 17:22:01.799