Check-Host.cc

IP Address IPv4

120.112.3.77

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

Run a live full scan of 120.112.3.77

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
www.chjh.tp.edu.tw
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

Last seen
2026-05-27 00:33:40

Network

Prefix
RPKI

Open Ports

Port Proto Service Server Last seen
80 tcp http Apache/2.4.41 (Ubuntu) 2026-05-26 17:16:50.000

TLS Certificates

TLS certificate observations pending

Once our scan layer captures a TLS cert from this IP, certificate chain, JARM and JA4S fingerprints will appear here.

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.

ICMP responsive This IP replied to our global ICMP sweep — last confirmed 2026-07-31.

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
80 臺北市忠孝國民中學 | 忠於事、孝於親 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.chjh.tp.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.

www.doe.gov.taipei href · ×22
photos.app.goo.gl href · ×14
school.tp.edu.tw href · ×4
shs.k12ea.gov.tw href · ×2
www-ws.gov.taipei href · ×2
web.chjh.tp.edu.tw href · ×2
newstd.tp.edu.tw href · ×2
wp.chjh.tp.edu.tw href · ×2
exam2.tcte.edu.tw href · ×1
12basic.tp.edu.tw href · ×1
sts.tp.edu.tw href · ×1
mt.utaipei.edu.tw href · ×1
teric.naer.edu.tw href · ×1
www.icrt.com.tw href · ×1
ssopxy.gov.taipei href · ×1
ldap.tp.edu.tw href · ×1
reurl.cc href · ×1
www.bot.com.tw href · ×1
bit.ly href · ×1
insc.tp.edu.tw href · ×1
www.cdc.gov.tw href · ×1
twbangga.moe.edu.tw href · ×1
isafeevent.moe.edu.tw href · ×1
calendar.google.com href · ×1
www.eoc.gov.taipei href · ×1
tsn.moe.edu.tw href · ×1
ono.tp.edu.tw href · ×1
elearning.taipei href · ×1
bully.moe.edu.tw href · ×1
165dashboard.tw href · ×1
dpe.tp.edu.tw href · ×1
eduglobal.tp.edu.tw href · ×1
www.nkhs.tp.edu.tw href · ×1
cooc.tp.edu.tw href · ×1
enews.tiec.tp.edu.tw href · ×1
job.gov.taipei href · ×1
165.npa.gov.tw href · ×1
etweb.tp.edu.tw href · ×1
shwoo.gov.taipei href · ×1
proteacher.moe.edu.tw href · ×1
photos.google.com href · ×1
myppt.cc href · ×1
cirn.moe.edu.tw href · ×1
cloud.edu.tw href · ×1
watersafety.sa.gov.tw href · ×1
inservice.edu.tw href · ×1
www.edu.tw href · ×1
onlinedb.tp.edu.tw href · ×1
webitr.tp.edu.tw href · ×1
www.fhus.taipei href · ×1
www.ietw2.edu.tw href · ×1
api.w.org href · ×1
ptst.k12ea.gov.tw href · ×1
www.hischool.com.tw href · ×1

History

First observed
2026-05-26 17:16
Last observed
2026-05-26 17:16
Scan observations
2

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