Check-Host.cc

IP Address IPv4

43.174.203.3

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

Run a live full scan of 43.174.203.3

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
AS139341
ACE CDN
Country
SG
Singapore
Reverse DNS
PTR
Open Ports
52
Last scan

Autonomous System

ASN
AS Name
ACE CDN
AS Type
RIR
APNIC
Allocated
2019-07-24
Allocation status
Allocated

Geolocation

Country
SG · Singapore
Continent
Asia
Source
MaxMind GeoLite2

Reverse DNS

PTR
Last seen

Network

RPKI

Open Ports

Port Proto Service Server Last seen
17 tcp 2026-06-21 16:24:58.000
21 tcp ftp 2026-05-26 01:36:05.000
23 tcp telnet 2026-05-26 18:20:44.000
37 tcp 2026-06-23 16:57:25.000
53 tcp dns 2026-05-27 03:38:32.000
80 tcp http 2026-06-14 19:53:33.000
88 tcp kerberos 2026-06-18 10:49:31.000
161 tcp snmp 2026-07-21 18:08:59.000
264 tcp 2026-07-21 03:02:35.000
464 tcp 2026-06-06 23:16:28.000
465 tcp smtps 2026-07-21 20:24:30.000
514 tcp syslog 2026-06-21 00:43:20.000
691 tcp 2026-06-23 05:42:54.000
783 tcp 2026-07-20 12:03:00.000
853 tcp 2026-07-18 04:24:48.000
953 tcp 2026-06-18 18:24:30.000
993 tcp imaps 2026-05-27 05:31:49.000
1024 tcp 2026-06-23 11:02:59.000
1158 tcp 2026-06-22 01:24:22.000
1434 tcp 2026-06-19 06:19:12.000
2082 tcp 2026-06-14 09:58:09.000
2086 tcp 2026-07-20 20:51:25.000
2087 tcp 2026-06-16 19:13:05.000
2181 tcp 2026-07-19 12:21:39.000
2484 tcp 2026-06-17 21:34:23.000
3001 tcp 2026-07-19 07:22:00.000
3269 tcp 2026-07-20 09:57:47.000
3299 tcp 2026-06-14 21:18:34.000
3306 tcp mysql 2026-06-07 04:15:43.000
4000 tcp 2026-06-14 05:22:49.000
4040 tcp 2026-06-23 10:43:28.000
4321 tcp 2026-05-31 10:41:50.000
5002 tcp 2026-06-22 04:32:09.000
5005 tcp 2026-06-19 05:55:26.000
5006 tcp 2026-06-16 16:32:06.000
5666 tcp 2026-07-20 00:00:28.000
6001 tcp 2026-07-16 00:37:57.000
6663 tcp 2026-07-18 17:44:00.000
7070 tcp 2026-06-07 01:42:32.000
8002 tcp 2026-07-20 09:18:11.000
8087 tcp 2026-07-16 13:20:34.000
8444 tcp 2026-06-15 03:17:12.000
8649 tcp 2026-07-20 09:16:14.000
9000 tcp php-fpm 2026-06-23 05:14:32.000
9001 tcp 2026-06-15 12:14:44.000
9090 tcp 2026-06-13 21:55:33.000
10000 tcp 2026-07-21 14:07:05.000
20547 tcp 2026-06-22 09:15:51.000
27017 tcp mongodb 2026-05-26 19:30:26.000
32764 tcp 2026-06-17 09:51:09.000
32769 tcp 2026-06-15 17:07:09.000
40000 tcp 2026-06-07 04:06:29.000

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

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.

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 2026-07-21.

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

No DNS-confirmed domains yet

We cross-reference body-cited domains against our DNS resolver records. Confirmations appear here once both sides have data for the same name.

External References

No external references found yet

As HTML bodies get banner-grabbed, references to external domains land here.

History

First observed
2026-05-26 01:35
Last observed
2026-07-21 20:24
Scan observations
109

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