Check-Host.cc

IP Address IPv4

35.241.97.55

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

Run a live full scan of 35.241.97.55

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
HK
Hong Kong
Reverse DNS
55.97.241.35.bc.googleusercontent.com
PTR
Open Ports
1
Last scan

Autonomous System

ASN
AS Name
AS Type
RIR
Allocated

Geolocation

Country
HK · Hong Kong
Continent
Asia
Source
MaxMind GeoLite2

Reverse DNS

Last seen
2026-07-27 18:08:50

Network

Prefix
RPKI

Open Ports

Port Proto Service Server Last seen
443 tcp https nginx 2026-07-26 12:58:40.000

TLS Certificates

Port 443 e657fdf6ea20…
Subject: vijos.org
Issuer: YR2
SANs: cdn.vijos.org, static.vijos.org, vijos.org, www.vijos.org
Valid 2026-07-13 03:36:29 → 2026-10-11 03:36:28
Port 443 a47ef76b1fe9…
Subject: vijos.org
Issuer: R12
SANs: cdn.vijos.org, static.vijos.org, vijos.org, www.vijos.org
Valid 2026-04-25 20:09:33 → 2026-07-24 20:09:32

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.

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

4 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 2026-08-03.

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.

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.

cdn.vijos.org DNS-confirmed
vijos.org 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.

www.xuetangx.com href · ×4
github.com href · ×4
uoj.ac href · ×2
uva.onlinejudge.org href · ×2
codeforces.com href · ×2
www.usaco.org href · ×2
www.51nod.com href · ×2
spoj.pl href · ×2
www.topcoder.com href · ×2
www.rqnoj.cn href · ×2
acm.zju.edu.cn href · ×2
loj.ac href · ×2
www.luogu.com.cn href · ×2
beian.miit.gov.cn href · ×2
poj.org href · ×2
acm.njupt.edu.cn href · ×2

History

First observed
2026-05-27 02:47
Last observed
2026-07-26 12:58
Scan observations
3

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