Check-Host.cc

Domain

rt.at

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

Run a live full scan of rt.at

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
A/AAAA targets
Subdomains
CT + scan + body
Record Types
seen in DNS
Observed Certs
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

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: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: contacts.cert.at
Issuer: YE2
SANs: contacts.cert.at
Subject: eap-dev.way2smart.at
Issuer: YR2
SANs: eap-dev.way2smart.at
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: *.propart.at
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.propart.at, propart.at
Subject: datamart.atyourservice.cn
Issuer: RapidSSL RSA CA 2018
SANs: datamart.atyourservice.cn
Subject: hexagon.baerbart.at
Issuer: YE1
SANs: hexagon.baerbart.at
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: *.ssl-gesichert.at
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.ssl-gesichert.at, ssl-gesichert.at
Subject: euromedex-report.at
Issuer: YR2
SANs: euromedex-report.at, www.euromedex-report.at
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: way2smart.at
Issuer: YR2
SANs: way2smart.at, www.way2smart.at
Subject: *.ssl-gesichert.at
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.ssl-gesichert.at, ssl-gesichert.at
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: buchung.schulsport.at
Issuer: YR1
SANs: buchung.schulsport.at, www.buchung.schulsport.at
Subject: *.ssl-gesichert.at
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.ssl-gesichert.at, ssl-gesichert.at
Subject: Owa.neustart.at
Issuer: GeoTrust TLS RSA CA G1
SANs: Autodiscover.neustart.at, Autodiscover.neustart.org, Owa.neustart.at
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: app.dc-power-dart.at
Issuer: YE2
SANs: app.dc-power-dart.at
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: nailart.at
Issuer: R10
SANs: nailart.at, www.nailart.at
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.com
Subject: badenliefert.at
Issuer: Let's Encrypt Authority X3
SANs: admin.badenliefert.at, badenliefert.at, www.badenliefert.at
Subject: support.atlassian.com
Issuer: Amazon RSA 2048 M04
SANs: support.atlassian.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.

56b23e2fe6f87bd2… sectigo · elephant2026h1
Subject: rt.at
Issuer: R13
SANs: rt.at
Valid: 2025-12-03 12:45:36 → 2026-03-03 12:45:35
77056944c27a5d5c… sectigo · elephant2026h1
Subject: rt.at
Issuer: R13
SANs: rt.at
Valid: 2025-12-03 12:45:36 → 2026-03-03 12:45:35

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.