Check-Host.cc

Domain

push.piazza.com

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

Run a live full scan of push.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
11
A/AAAA targets
Subdomains
CT + scan + body
Record Types
1
seen in DNS
Observed Certs
5
in our scans

DNS Records

A
100.48.183.57, 107.20.177.212, 18.205.146.192, 18.208.122.119, 3.219.203.217, 32.199.70.97, 34.230.148.252, 52.73.146.253
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

Subject: piazza.com
Issuer: Amazon RSA 2048 M04
SANs: checkin.piazza.com, earlyaccess.piazza.com, piazza.com, prod-access.piazza.com, prod-task.piazza.com, push.piazza.com, recruiting.piazza.com, talent.piazza.com, www.piazza.com
Subject: piazza.com
Issuer: Amazon RSA 2048 M04
SANs: checkin.piazza.com, earlyaccess.piazza.com, piazza.com, prod-access.piazza.com, prod-task.piazza.com, push.piazza.com, recruiting.piazza.com, talent.piazza.com, www.piazza.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.

CT-Log Evidence

Certificates from public Certificate Transparency logs whose subject or SAN names this domain — including historic certs we never observed live.

a36567a3c45cb2cd… google · xenon2026h2
Subject: piazza.com
Issuer: Amazon RSA 2048 M04
SANs: piazza.com, talent.piazza.com, push.piazza.com, recruiting.piazza.com, www.piazza.com, checkin.piazza.com, prod-access.piazza.com, earlyaccess.piazza.com, prod-task.piazza.com
Valid: 2026-03-17 00:00:00 → 2026-09-30 23:59:59
dce00b0b92688e7e… google · xenon2026h2
Subject: piazza.com
Issuer: Amazon RSA 2048 M04
SANs: piazza.com, talent.piazza.com, push.piazza.com, recruiting.piazza.com, www.piazza.com, checkin.piazza.com, prod-access.piazza.com, earlyaccess.piazza.com, prod-task.piazza.com
Valid: 2026-03-17 00:00:00 → 2026-09-30 23:59:59
dfdbf5bb296581b3… digicert · wyvern2026h2
Subject: piazza.com
Issuer: Amazon RSA 2048 M02
SANs: piazza.com, talent.piazza.com, push.piazza.com, recruiting.piazza.com, www.piazza.com, checkin.piazza.com, prod-access.piazza.com, prod-task.piazza.com
Valid: 2025-07-10 00:00:00 → 2026-08-08 23:59:59

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 54.173.98.225 2026-05-26 07:03:02.977 2026-05-26 07:07:02.960
A 3.219.203.217 2026-05-26 07:03:02.977 2026-05-27 02:35:44.599
A 32.199.70.97 2026-05-26 07:03:02.977 2026-06-02 19:38:51.265
A 18.208.122.119 2026-05-27 02:35:44.599 2026-06-02 19:38:51.265
A 34.230.148.252 2026-06-02 19:38:51.265 2026-06-02 19:38:51.265
A 18.205.146.192 2026-06-15 05:16:01.828 2026-06-15 05:16:01.828
A 54.209.51.109 2026-06-15 05:16:01.828 2026-06-15 05:16:01.828
A 52.73.146.253 2026-06-15 05:16:01.828 2026-06-15 05:16:01.828
A 54.89.203.190 2026-07-16 05:19:42.639 2026-07-16 05:19:42.639
A 100.48.183.57 2026-07-16 05:19:42.639 2026-07-16 05:19:42.639
A 107.20.177.212 2026-07-16 05:19:42.639 2026-07-16 05:19:42.639