Check-Host.cc

Try 1.1.1.1 AS13335 check-host.cc /country/de /tld/cc
Domain

api.alumni.education

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

DNS Check HTTP Check Run Full Scan .education TLD

Run a live full scan of api.alumni.education

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
29
A/AAAA targets
Subdomains
—
CT + scan + body
Record Types
2
seen in DNS
Observed Certs
4
in our scans

DNS Records

A
18.239.69.16, 18.239.69.3, 18.239.69.49, 18.239.69.71, 18.64.211.101, 18.64.211.123, 18.64.211.44, 18.64.211.57
AAAA
2600:9000:20b4:4000:5:d8b1:fac0:93a1, 2600:9000:20b4:4200:5:d8b1:fac0:93a1, 2600:9000:20b4:4800:5:d8b1:fac0:93a1, 2600:9000:20b4:4e00:5:d8b1:fac0:93a1, 2600:9000:20b4:6400:5:d8b1:fac0:93a1, 2600:9000:20b4:7800:5:d8b1:fac0:93a1, 2600:9000:20b4:7e00:5:d8b1:fac0:93a1, 2600:9000:20b4:8200:5:d8b1:fac0:93a1
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.

CT-Log Evidence

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

5c684bf106db1fc9… google · argon2026h2
Subject: alumni.education
Issuer: Amazon RSA 2048 M01
SANs: alumni.education, admin.alumni.education, wss.alumni.education, api.alumni.education, student.alumni.education, teacher.alumni.education, teachers.alumni.education
Valid: 2025-10-29 00:00:00 → 2026-11-27 23:59:59
5c684bf106db1fc9… cloudflare · nimbus2026
Subject: alumni.education
Issuer: Amazon RSA 2048 M01
SANs: alumni.education, admin.alumni.education, wss.alumni.education, api.alumni.education, student.alumni.education, teacher.alumni.education, teachers.alumni.education
Valid: 2025-10-29 00:00:00 → 2026-11-27 23:59:59
27bf737aa887711f… google · argon2026h2
Subject: alumni.education
Issuer: Amazon RSA 2048 M04
SANs: alumni.education, admin.alumni.education, teachers-dev.alumni.education, api.alumni.education, api-dev.alumni.education, app-dev.alumni.education, admin-dev.alumni.education, teachers.alumni.education
Valid: 2025-10-12 00:00:00 → 2026-11-10 23:59:59
27bf737aa887711f… cloudflare · nimbus2026
Subject: alumni.education
Issuer: Amazon RSA 2048 M04
SANs: alumni.education, admin.alumni.education, teachers-dev.alumni.education, api.alumni.education, api-dev.alumni.education, app-dev.alumni.education, admin-dev.alumni.education, teachers.alumni.education
Valid: 2025-10-12 00:00:00 → 2026-11-10 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
AAAA 2600:9000:20b4:4200:5:d8b1:fac0:93a1 2026-06-23 19:36:31.899 2026-06-23 19:36:31.899
AAAA 2600:9000:20b4:aa00:5:d8b1:fac0:93a1 2026-06-23 19:36:31.899 2026-06-23 19:36:31.899
A 18.239.69.16 2026-06-23 19:36:31.899 2026-07-16 07:04:18.493
AAAA 2600:9000:20b4:f200:5:d8b1:fac0:93a1 2026-06-23 19:36:31.899 2026-07-16 07:04:18.493
AAAA 2600:9000:20b4:7e00:5:d8b1:fac0:93a1 2026-06-23 19:36:31.899 2026-06-23 19:36:31.899
A 18.239.69.71 2026-06-23 19:36:31.899 2026-07-16 07:04:18.493
AAAA 2600:9000:20b4:8e00:5:d8b1:fac0:93a1 2026-06-23 19:36:31.899 2026-06-23 19:36:31.899
AAAA 2600:9000:20b4:4e00:5:d8b1:fac0:93a1 2026-06-23 19:36:31.899 2026-07-16 06:56:56.561
AAAA 2600:9000:20b4:ee00:5:d8b1:fac0:93a1 2026-06-23 19:36:31.899 2026-06-23 19:36:31.899
A 18.239.69.3 2026-06-23 19:36:31.899 2026-07-16 07:04:18.493
AAAA 2600:9000:20b4:fc00:5:d8b1:fac0:93a1 2026-06-23 19:36:31.899 2026-07-16 06:56:56.561
A 18.239.69.49 2026-06-23 19:36:31.899 2026-07-16 07:04:18.493
AAAA 2600:9000:20b4:9200:5:d8b1:fac0:93a1 2026-07-16 06:56:56.561 2026-07-16 06:56:56.561
A 18.64.211.44 2026-07-16 06:56:56.561 2026-07-16 06:56:56.561
AAAA 2600:9000:20b4:8200:5:d8b1:fac0:93a1 2026-07-16 06:56:56.561 2026-07-16 06:56:56.561
A 18.64.211.57 2026-07-16 06:56:56.561 2026-07-16 06:56:56.561
A 18.64.211.101 2026-07-16 06:56:56.561 2026-07-16 06:56:56.561
AAAA 2600:9000:20b4:a000:5:d8b1:fac0:93a1 2026-07-16 06:56:56.561 2026-07-16 06:56:56.561
A 18.64.211.123 2026-07-16 06:56:56.561 2026-07-16 06:56:56.561
AAAA 2600:9000:20b4:4000:5:d8b1:fac0:93a1 2026-07-16 06:56:56.561 2026-07-16 06:56:56.561
AAAA 2600:9000:20b4:b400:5:d8b1:fac0:93a1 2026-07-16 06:56:56.561 2026-07-16 06:56:56.561
AAAA 2600:9000:20b4:7800:5:d8b1:fac0:93a1 2026-07-16 06:56:56.561 2026-07-16 06:56:56.561
AAAA 2600:9000:20b4:4800:5:d8b1:fac0:93a1 2026-07-16 07:04:18.493 2026-07-16 07:04:18.493
AAAA 2600:9000:20b4:ea00:5:d8b1:fac0:93a1 2026-07-16 07:04:18.493 2026-07-16 07:04:18.493
AAAA 2600:9000:20b4:fe00:5:d8b1:fac0:93a1 2026-07-16 07:04:18.493 2026-07-16 07:04:18.493
AAAA 2600:9000:20b4:e000:5:d8b1:fac0:93a1 2026-07-16 07:04:18.493 2026-07-16 07:04:18.493
AAAA 2600:9000:20b4:dc00:5:d8b1:fac0:93a1 2026-07-16 07:04:18.493 2026-07-16 07:04:18.493
AAAA 2600:9000:20b4:ac00:5:d8b1:fac0:93a1 2026-07-16 07:04:18.493 2026-07-16 07:04:18.493
AAAA 2600:9000:20b4:6400:5:d8b1:fac0:93a1 2026-07-16 07:04:18.493 2026-07-16 07:04:18.493