Check-Host.cc

Domain

piazza.com

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

Run a live full scan of piazza.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
17
A/AAAA targets
Subdomains
50
CT + scan + body
Record Types
5
seen in DNS
Observed Certs
5
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
piazza.com 2026-07-27 00:37:56.931
checkin.piazza.com 2026-07-16 05:19:42.639
push.piazza.com 2026-07-16 05:19:42.639
recruiting.piazza.com 2026-07-16 05:19:42.639
talent.piazza.com 2026-07-16 05:19:42.639
www.piazza.com 2026-07-16 05:19:42.639
earlyaccess.piazza.com 2026-07-16 05:19:42.639
cdn-private.piazza.com
1970-01-01 00:00:00.000
cdn-test-private.piazza.com
1970-01-01 00:00:00.000
cdn-test-uploads.piazza.com
1970-01-01 00:00:00.000
cdn-uploads.piazza.com
1970-01-01 00:00:00.000
credentials.piazza.com
1970-01-01 00:00:00.000
development.cd.piazza.com
1970-01-01 00:00:00.000
nonproduction-credentials.piazza.com
1970-01-01 00:00:00.000
old.test.piazza.com
1970-01-01 00:00:00.000
prod-access.piazza.com
1970-01-01 00:00:00.000
prod-task.piazza.com
1970-01-01 00:00:00.000
production.cd.piazza.com
1970-01-01 00:00:00.000
test-cdn.piazza.com
1970-01-01 00:00:00.000
test-credentials.piazza.com
1970-01-01 00:00:00.000
test-push.piazza.com
1970-01-01 00:00:00.000
test-talent.piazza.com
1970-01-01 00:00:00.000
test.piazza.com
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.