Check-Host.cc

Domain

www.topcoder.com

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

Run a live full scan of www.topcoder.com

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

Deep-scan now
Hosting IPs
38
A/AAAA targets
Subdomains
CT + scan + body
Record Types
1
seen in DNS
Observed Certs
in our scans

DNS Records

A
100.49.98.240, 100.56.133.92, 100.56.159.132, 100.56.41.92, 100.59.119.153, 100.59.136.218, 100.61.109.134, 100.61.99.179
AAAA
MX
NS
TXT
CNAME
CAA

WHOIS / Registration

Registration data planned

Registrar, creation/expiry dates and domain status via RDAP. Rolling out gradually — bulk WHOIS is rate-limited, so we resolve on a prioritized cadence.

Subdomains

Subdomain enumeration pending

Every subdomain ever issued a TLS cert under this apex — extracted from Certificate Transparency logs, our own scan observations and body references.

Tech Stack

Tech detection pending

Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.

TLS Certificates

Certificate observations pending

TLS certs naming this domain in subject or SANs will appear here as our scan-layer catches them.

IPs Citing This Domain

No citing IPs found yet

As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.

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-IP leaks detected (yet)

Either this domain doesn't sit behind a CDN, or we haven't seen a TLS cert from a non-CDN IP matching this hostname. Run a fullscan to refresh the cert→IP cross-reference.

Threat Intelligence

Domain threat-intel pending

Matches in URLhaus, OpenPhish, PhishTank, malware feeds, and Spamhaus DBL.

History

Passive DNS — every value this name ever resolved to and when we first / last observed it. Updates every cycle of our forward-DNS crawler.

Type Value First seen Last seen
A 98.87.238.177 2026-05-25 22:00:50.546 2026-05-27 05:16:25.650
A 3.209.94.155 2026-05-25 22:00:50.546 2026-05-27 15:19:01.837
A 52.45.138.112 2026-05-25 22:00:50.546 2026-05-27 15:19:01.837
A 100.49.98.240 2026-05-27 05:28:36.145 2026-05-31 12:19:40.782
A 34.233.176.213 2026-05-31 01:21:40.725 2026-05-31 12:19:40.782
A 44.213.219.91 2026-05-31 01:21:40.725 2026-05-31 12:19:40.782
A 18.210.190.108 2026-06-14 22:08:58.337 2026-06-15 03:22:15.264
A 52.44.245.111 2026-06-14 22:08:58.337 2026-06-19 18:55:17.262
A 35.175.27.129 2026-06-14 22:08:58.337 2026-06-18 02:36:11.127
A 54.161.76.213 2026-06-15 09:12:08.070 2026-06-15 23:22:02.007
A 75.101.183.114 2026-06-17 00:41:48.321 2026-06-18 02:36:11.127
A 100.59.119.153 2026-06-19 11:21:29.238 2026-06-19 18:55:17.262
A 100.59.136.218 2026-06-19 11:21:29.238 2026-06-19 11:24:40.014
A 54.87.29.8 2026-06-19 15:26:31.605 2026-06-23 01:17:37.728
A 100.56.41.92 2026-06-22 20:32:32.206 2026-06-23 01:17:37.728
A 52.44.86.246 2026-06-22 20:32:32.206 2026-06-23 01:17:37.728
A 44.221.153.129 2026-07-16 13:33:54.772 2026-07-17 05:17:20.972
A 100.56.159.132 2026-07-16 13:33:54.772 2026-07-16 13:33:54.772
A 44.213.83.82 2026-07-16 13:33:54.772 2026-07-17 05:17:20.972
A 100.61.109.134 2026-07-17 02:10:04.524 2026-07-18 11:48:24.388
A 100.61.99.179 2026-07-18 07:43:48.774 2026-07-19 09:04:56.405
A 32.196.20.100 2026-07-18 07:43:48.774 2026-07-19 09:04:56.405
A 35.153.112.220 2026-07-18 14:17:26.744 2026-07-19 09:04:56.405
A 3.229.83.8 2026-07-19 15:33:33.696 2026-07-20 11:41:26.280
A 52.86.87.218 2026-07-19 15:33:33.696 2026-07-20 11:41:26.280
A 54.144.78.156 2026-07-19 15:33:33.696 2026-07-20 11:41:26.280
A 52.70.11.38 2026-07-20 17:54:04.862 2026-07-21 18:32:07.021
A 54.163.92.31 2026-07-20 17:54:04.862 2026-07-21 18:32:07.021
A 54.161.216.203 2026-07-20 17:54:04.862 2026-07-21 18:32:07.021
A 50.17.152.181 2026-07-22 18:09:12.423 2026-07-26 13:05:23.356
A 32.193.171.236 2026-07-22 18:09:12.423 2026-07-23 03:16:45.249
A 54.225.162.156 2026-07-22 18:09:12.423 2026-07-25 11:11:23.829
A 54.236.183.252 2026-07-23 07:28:23.933 2026-07-26 13:05:23.356
A 100.56.133.92 2026-07-26 02:30:53.514 2026-07-26 02:30:53.514
A 44.219.97.130 2026-07-26 06:49:47.584 2026-07-26 13:05:23.356
A 34.192.93.80 2026-07-26 16:56:28.858 2026-07-28 17:49:52.713
A 32.199.26.214 2026-07-26 16:56:28.858 2026-07-28 17:49:52.713
A 98.95.78.54 2026-07-26 16:56:28.858 2026-07-28 17:49:52.713