Check-Host.cc

IP Address IPv4

164.46.43.56

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

Run a live full scan of 164.46.43.56

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
AS4694
IDC Frontier Inc.
Country
JP
Japan
Reverse DNS
blue-goat-10c58f44077a0142.znlc.jp
PTR
Open Ports
3
Last scan

Autonomous System

ASN
AS Name
IDC Frontier Inc.
AS Type
RIR
APNIC
Allocated
1992-11-18
Allocation status
Allocated

Geolocation

Country
JP · Japan
Continent
Asia
Source
MaxMind GeoLite2

Reverse DNS

Last seen
2026-07-26 03:10:19

Network

RPKI

Open Ports

Port Proto Service Server Last seen
25 tcp smtp 2026-07-26 03:09:57.000
143 tcp imap 2026-06-23 11:24:08.000
443 tcp https Apache 2026-07-24 19:56:46.000

TLS Certificates

Port 443 608f0cd44513…
Subject: www.officemedia.co.jp
Issuer: GlobalSign GCC R3 DV TLS CA 2020
SANs: officemedia.co.jp, www.officemedia.co.jp
Valid 2025-11-27 15:12:27 → 2026-12-29 15:12:26

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-leak candidates for this IP

When this IP serves a TLS cert for a domain that fronts behind a CDN, that domain surfaces here as an origin-leak candidate with a confidence score.

Hosted Domains

2 domains resolve (A-record) to this IP.

Multi-Vantage Check

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

ICMP responsive This IP replied to our global ICMP sweep — last confirmed 2026-08-05.

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 オフィス・メディア株式会社 - 200

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

Domains this host references in its HTML AND whose DNS A/AAAA record resolves back to this IP — i.e. actually hosted here.

www.officemedia.co.jp DNS-confirmed
www.officemedia.co.jp DNS-confirmed
www.officemedia.co.jp DNS-confirmed

External References

Domains the body links to whose DNS does NOT resolve to this IP — usually CDN assets, embeds, or third-party services. Boilerplate (Google Fonts, jsDelivr, w3.org…) is already filtered.

om.raku-uru.jp href · ×4
www.dynic.co.jp href · ×3
ajaxzip3.github.io href · ×2
privacymark.jp href · ×1
gmpg.org href · ×1
api.w.org href · ×1
yoast.com href · ×1

History

First observed
2026-06-19 18:30
Last observed
2026-07-26 03:09
Scan observations
8

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