Check-Host.cc

IP Address IPv4

130.34.41.69

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

Run a live full scan of 130.34.41.69

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
Not yet attributed
Country
GeoIP pending
Reverse DNS
zhwhg041069.star.net.tohoku.ac.jp
PTR
Open Ports
1
Last scan

Autonomous System

ASN
AS Name
AS Type
RIR
APNIC
Allocated
1988-04-29
Allocation status
Allocated

Geolocation

Country
Continent
Source
MaxMind GeoLite2

Reverse DNS

Last seen
2026-06-17 15:00:38

Network

Prefix
RPKI

Open Ports

Port Proto Service Server Last seen
443 tcp https Apache 2026-05-26 01:12:45.000

TLS Certificates

Port 443 4c940558e067…
Subject: www.sed.tohoku.ac.jp
Issuer: NII Open Domain CA - G8 RSA
SANs: www.sed.tohoku.ac.jp
Valid 2026-02-27 05:23:46 → 2027-03-30 05:23:46

Tech Stack

Detected via Wappalyzer-style rules on the HTTP response body, headers, scripts and meta tags.

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

1 domain 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.

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 東北大学 大学院 教育学研究科・教育学部 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.sed.tohoku.ac.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.

twitter.com href · ×5
note.com href · ×3
www.nikkei.com href · ×2
www.akashi.co.jp href · ×2
www.yomiuri.co.jp href · ×2
cognac.tohoku.ac.jp href · ×2
www2.sed.tohoku.ac.jp href · ×2
www.tandfonline.com href · ×1
money-career.com href · ×1
doi.org href · ×1
www.tohoku.ac.jp href · ×1
researchmap.jp href · ×1
www.tnc.tohoku.ac.jp href · ×1
slink.secioss.com href · ×1
www.jsps.go.jp href · ×1
smaeda-lab.github.io href · ×1
web.tohoku.ac.jp href · ×1
feed.mikle.com href · ×1
cse.google.com href · ×1
www.web.nhk href · ×1
telemail.jp href · ×1

History

First observed
2026-05-26 01:12
Last observed
2026-05-26 01:12
Scan observations
2

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