Check-Host.cc

Domain

www.reddit.com

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

Run a live full scan of www.reddit.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
14
A/AAAA targets
Subdomains
CT + scan + body
Record Types
2
seen in DNS
Observed Certs
in our scans

DNS Records

A
104.18.18.2, 104.18.19.2, 140.248.137.140, 146.75.121.140, 151.101.1.140, 151.101.129.140, 151.101.193.140, 151.101.37.140
AAAA
2a04:4e42:200::396, 2a04:4e42:400::396, 2a04:4e42:600::396, 2a04:4e42:8e::396, 2a04:4e42::396
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

Subject: forum.testnet
Issuer: Testnet Root CA
SANs: forum.testnet, old.reddit.com, reddit.com, www.reddit.com

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 151.101.129.140 2026-05-25 21:56:50.553 2026-07-28 19:57:26.855
A 151.101.1.140 2026-05-25 21:56:50.553 2026-07-28 19:57:26.855
A 151.101.193.140 2026-05-25 21:56:50.553 2026-07-28 19:57:26.855
A 151.101.65.140 2026-05-25 21:56:50.553 2026-07-28 19:57:26.855
AAAA 2a04:4e42::396 2026-05-26 02:34:00.508 2026-07-28 17:34:09.807
AAAA 2a04:4e42:600::396 2026-05-26 02:34:00.508 2026-07-28 17:34:09.807
AAAA 2a04:4e42:200::396 2026-05-26 02:34:00.508 2026-07-28 17:34:09.807
AAAA 2a04:4e42:400::396 2026-05-26 02:34:00.508 2026-07-28 17:34:09.807
A 151.101.37.140 2026-06-16 04:09:52.697 2026-06-17 12:39:58.275
A 140.248.137.140 2026-06-19 17:55:58.048 2026-06-23 01:48:26.040
A 146.75.121.140 2026-07-16 00:23:58.237 2026-07-28 09:50:51.502
AAAA 2a04:4e42:8e::396 2026-07-28 02:31:53.233 2026-07-28 02:31:53.233
A 104.18.18.2 2026-07-28 08:57:56.840 2026-07-28 08:57:56.840
A 104.18.19.2 2026-07-28 08:57:56.840 2026-07-28 08:57:56.840