Check-Host.cc

Domain

freecodecamp.org

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

Run a live full scan of freecodecamp.org

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
10
A/AAAA targets
Subdomains
61
CT + scan + body
Record Types
5
seen in DNS
Observed Certs
17
in our scans

DNS Records

A
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

Every subdomain we know about — harvested from CT-log SANs, scan-observed certs and HTML body references — paired with its current A/AAAA target.

Subdomain Resolves to Last seen
campfire-mode.freecodecamp.org 2026-07-21 10:58:53.217
cdn-media-0.freecodecamp.org 2026-07-28 00:44:29.684
cdn.freecodecamp.org 2026-07-27 12:47:05.675
contribute.freecodecamp.org 2026-06-16 00:16:01.239
curriculum-db.freecodecamp.org 2026-06-21 08:32:55.730
exam-environment-downloads.freecodecamp.org 2026-06-16 02:24:44.509
freecodecamp.org 2026-07-25 21:43:55.834
gb.web.freecodecamp.org 2026-07-19 14:35:21.080
gb.web.v4.freecodecamp.org 2026-06-15 03:26:08.902
hackathon.freecodecamp.org 2026-07-21 09:30:34.743
medium.freecodecamp.org 2026-07-27 12:01:06.998
preview.freecodecamp.org 2026-07-15 15:46:15.439
support.freecodecamp.org 2026-07-21 04:44:19.600
www.freecodecamp.org 2026-07-26 04:05:32.050
auth.freecodecamp.org 2026-07-15 04:07:18.096
about.freecodecamp.org
1970-01-01 00:00:00.000
api.mobile.freecodecamp.org
1970-01-01 00:00:00.000
chapter.freecodecamp.org
1970-01-01 00:00:00.000
chinese.freecodecamp.org
1970-01-01 00:00:00.000
coderadio-admin-v2.freecodecamp.org
1970-01-01 00:00:00.000
complaint.freecodecamp.org
1970-01-01 00:00:00.000
exam-creator.freecodecamp.org
1970-01-01 00:00:00.000
gb.api.freecodecamp.org
1970-01-01 00:00:00.000
gb.api.v4.freecodecamp.org
1970-01-01 00:00:00.000
guide.freecodecamp.org
1970-01-01 00:00:00.000
in.status.freecodecamp.org
1970-01-01 00:00:00.000
maintenance.freecodecamp.org
1970-01-01 00:00:00.000
media-kit.freecodecamp.org
1970-01-01 00:00:00.000
nonprofits.freecodecamp.org
1970-01-01 00:00:00.000
podcast.freecodecamp.org
1970-01-01 00:00:00.000
shop.freecodecamp.org
1970-01-01 00:00:00.000
staff-wiki.freecodecamp.org
1970-01-01 00:00:00.000
status.freecodecamp.org
1970-01-01 00:00:00.000
study-group-directory.freecodecamp.org
1970-01-01 00:00:00.000
tools.freecodecamp.org
1970-01-01 00:00:00.000

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

Domain timeline pending

Passive-DNS history accumulates as our forward-DNS crawler observes A/AAAA/MX/NS/TXT records over time.