Check-Host.cc

IP Address IPv4

203.68.92.87

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

Run a live full scan of 203.68.92.87

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
AS1659
Taiwan Academic Network(TANet)
Country
TW
Taiwan
Reverse DNS
PTR
Open Ports
1
Last scan

Autonomous System

ASN
AS Name
Taiwan Academic Network(TANet)
AS Type
RIR
APNIC
Allocated
2002-08-01
Allocation status
Allocated

Geolocation

Country
TW · Taiwan
Continent
Asia
Source
MaxMind GeoLite2

Reverse DNS

PTR
Last seen

Network

Prefix
RPKI

Open Ports

Port Proto Service Server Last seen
443 tcp https nginx/1.24.0 (Ubuntu) 2026-07-21 21:39:10.000

TLS Certificates

Port 443 756705d8a0d2…
Subject: *.ctsh.hcc.edu.tw
Issuer: TWCA Secure SSL Certification Authority
SANs: *.ctsh.hcc.edu.tw, ctsh.hcc.edu.tw
Valid 2025-10-29 07:36:51 → 2026-11-24 15:59:59

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 首頁 - 國立竹東高級中學 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.ctsh.hcc.edu.tw 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.

ctsh-hcc.k12ea.gov.tw href · ×17
sites.google.com href · ×12
law.moj.gov.tw href · ×4
acc.ctsh.hcc.edu.tw href · ×4
pk12.cloudhr.tw href · ×3
mail.edu.tw href · ×2
www.sso.edu.tw href · ×2
csrc.nfu.edu.tw href · ×2
antidrug.moj.gov.tw href · ×2
www.guide.edu.tw href · ×2
enc.moe.edu.tw href · ×2
168.motc.gov.tw href · ×2
www.chgobus.url.tw href · ×2
bully.moe.edu.tw href · ×2
mail.google.com href · ×2
www.k12ea.gov.tw href · ×2
www.e-quit.org href · ×2
sch.ctsh.hcc.edu.tw href · ×2
proteacher.moe.edu.tw href · ×2
web.pcc.gov.tw href · ×2
www.energyedu.tw href · ×2
get.google.com href · ×2
csrc.edu.tw href · ×2
040b02.kp.ncnu.edu.tw href · ×2
www.edu.tw href · ×2
igt.ctsh.hcc.edu.tw href · ×2
ctsh.teams.com.tw href · ×2
eliteracy.edu.tw href · ×2
i.win.org.tw href · ×2
sel.ctsh.hcc.edu.tw href · ×2
www4.inservice.edu.tw href · ×2
www.gender.edu.tw href · ×2
familyedu.moe.gov.tw href · ×2
reurl.cc href · ×1

History

First observed
2026-05-26 06:06
Last observed
2026-07-21 21:39
Scan observations
5

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