Check-Host.cc

IP Address IPv4

203.216.223.7

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

Run a live full scan of 203.216.223.7

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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ASN
AS9607
BroadBand Tower
Country
JP
Japan
Reverse DNS
PTR
Open Ports
Last scan

Autonomous System

ASN
AS Name
BroadBand Tower
AS Type
RIR
APNIC
Allocated
2004-10-14
Allocation status
Allocated

Geolocation

Country
JP · Japan
Continent
Asia
Source
MaxMind GeoLite2

Reverse DNS

PTR
Last seen

Network

RPKI

Open Ports

Port-scan data not yet ingested

Open-port and banner-grab data from our scan layer will appear here. World-sweep covers all IPv4 over time — this host may be in a /8 we haven't reached yet.

TLS Certificates

Port 443 9f836cc73635…
Subject: www.shadan-kun.com
Issuer: RapidSSL TLS RSA CA G1
SANs: www.shadan-kun.com
Valid 2026-01-13 00:00:00 → 2027-02-05 23:59:59

Tech Stack

Wappalyzer fingerprinting pending

HTTP-body analysis identifies web frameworks, CMS platforms, analytics, JS libraries and server-side languages from this host.

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.

shadan-kun.com 95% confidence
behind AS16509 cert 9f836cc73635… · cert 9f836cc7… served by 203.216.223.7 (AS9607) carries SAN www.shadan-kun.com which currently resolves through Amazon (AS16509) at 54.192.35.57, 54.192.35.13, 54.192.35.109, 54.192.35.86

Multi-Vantage Check

Reachability accrued passively from real user-triggered checks across our 65+ probe nodes. Run a live check to add fresh data.

No accumulated reachability data yet

Reachability accrues from real user-triggered checks. Trigger a Ping or HTTP check from our 65+ probe nodes to contribute the first data point.

Web Pages

Port Page title Status Flags
443 404 Not Found 404
80 404 Not Found 404

Threat Intelligence

No threat-intel matches

This IP doesn't appear in any of the feeds we mirror (Tor exits, FireHOL Level 1-3, Spamhaus DROP/EDROP, URLhaus, OpenPhish). Absence here doesn't prove the IP is clean — it just means none of our public-feed sources flag it.

Co-Hosted Domains

No DNS-confirmed domains yet

We cross-reference body-cited domains against our DNS resolver records. Confirmations appear here once both sides have data for the same name.

External References

No external references found yet

As HTML bodies get banner-grabbed, references to external domains land here.

History

First observed
2026-05-26 11:19
Last observed
2026-07-17 15:48
Scan observations
4

The full change-log (ASN moves, cert rotations, port-state diffs) accumulates as our archives grow.