Check-Host.cc

Domain

restena.lu

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

Run a live full scan of restena.lu

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

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Hosting IPs
36
A/AAAA targets
Subdomains
91
CT + scan + body
Record Types
6
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

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.

f9cca5d64ad40595… cloudflare · nimbus2026
Subject: restena.lu
Issuer: GEANT TLS RSA 1
SANs: restena.lu, www.restena.lu
Valid: 2025-12-03 15:21:06 → 2026-12-03 15:21:06
f9cca5d64ad40595… google · xenon2026h2
Subject: restena.lu
Issuer: GEANT TLS RSA 1
SANs: restena.lu, www.restena.lu
Valid: 2025-12-03 15:21:06 → 2026-12-03 15:21:06
63dc9e126c8c3e76… google · argon2026h2
Subject: www.restena.lu
Issuer: GEANT TLS RSA 1
SANs: www.restena.lu, restena.net, www.restena.foundation, www.restena.net, restena.org, restena.info, restena.com, www.restena.org, www.restena.eu, www.restena.com, restena.eu, www.restena.info, restena.foundation, restena.lu
Valid: 2025-11-27 10:21:30 → 2026-11-27 10:21:30
63dc9e126c8c3e76… google · xenon2026h2
Subject: www.restena.lu
Issuer: GEANT TLS RSA 1
SANs: www.restena.lu, restena.net, www.restena.foundation, www.restena.net, restena.org, restena.info, restena.com, www.restena.org, www.restena.eu, www.restena.com, restena.eu, www.restena.info, restena.foundation, restena.lu
Valid: 2025-11-27 10:21:30 → 2026-11-27 10:21:30
0facf2a36333a2cd… google · argon2026h2
Subject: restena.lu
Issuer: GEANT TLS RSA 1
SANs: restena.lu
Valid: 2025-10-07 13:36:57 → 2026-10-07 13:36:57
0facf2a36333a2cd… cloudflare · nimbus2026
Subject: restena.lu
Issuer: GEANT TLS RSA 1
SANs: restena.lu
Valid: 2025-10-07 13:36:57 → 2026-10-07 13:36:57

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
CAA 0 issuewild "harica.gr" 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
A 158.64.1.83 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
NS ns3.restena.lu 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
NS ns1.restena.lu 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
AAAA 2001:a18:1::83 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
MX 10 smtpgate1.restena.lu 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
CAA 0 iodef "mailto:helpdesk@restena.lu" 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
TXT v=spf1 mx a:smtprelay.restena.lu include:_listservers.restena.lu -all 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
MX 5 smtpgate3.restena.lu 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
NS ns2.restena.lu 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
NS nse.restena.lu 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
TXT google-site-verification=12K6fBOGEb6bDHeQgq-0u1B63tl2C3RESgrsKO-NmCo 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
CAA 0 issue "harica.gr" 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
NS nsp.restena.lu 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163
MX 10 smtpgate2.restena.lu 2026-06-04 22:33:40.391 2026-06-17 13:12:01.163