Check-Host.cc

Domain

optima.lu

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

Run a live full scan of optima.lu

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
3
A/AAAA targets
Subdomains
388
CT + scan + body
Record Types
4
seen in DNS
Observed Certs
10
in our scans

DNS Records

A
52.59.15.250
AAAA
MX
10 w011fb13.kasserver.com
NS
ns5.kasserver.com, ns6.kasserver.com
TXT
v=spf1 mx ip4:85.13.146.180 a:dd52822.kasserver.com -all
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
bosshomeha.optima.lu 2026-07-25 18:47:17.528
091d79.optima.lu 2026-07-18 00:34:37.529
104.54.239.17jwww.localhost.optima.lu
1970-01-01 00:00:00.000
17jwww.localhost.optima.lu
1970-01-01 00:00:00.000
239.17jwww.localhost.optima.lu
1970-01-01 00:00:00.000
3-1b9342091d79.optima.lu
1970-01-01 00:00:00.000
395d3c1aa6314b1ca3c31b9342091d79.optima.lu 2026-06-17 22:24:52.190
42091d79.optima.lu 2026-07-25 04:34:47.921
54.239.17jwww.localhost.optima.lu
1970-01-01 00:00:00.000
886446ac-4555-4330-8dc9-c8914d6caa0d.optima.lu
1970-01-01 00:00:00.000
9342091d79.optima.lu
1970-01-01 00:00:00.000
a3c3-1b9342091d79.optima.lu
1970-01-01 00:00:00.000
account.optima.lu 2026-07-30 16:14:37.385
accounts.optima.lu 2026-07-30 16:14:37.385
admin.client.optima.lu
1970-01-01 00:00:00.000
admin.localhost.optima.lu
1970-01-01 00:00:00.000
admin.optima.lu 2026-07-30 16:14:37.385
admin.rslquazn.optima.lu
1970-01-01 00:00:00.000
admin.www.assets.optima.lu
1970-01-01 00:00:00.000
admin.www.m.optima.lu
1970-01-01 00:00:00.000
admin.www.xzmgjphd.optima.lu 2026-06-22 22:45:46.561
administrator.optima.lu 2026-07-30 16:14:37.385
ainxbjqk.optima.lu
1970-01-01 00:00:00.000
alertmanager.optima.lu 2026-07-30 16:14:37.385
alpha.optima.lu 2026-07-30 16:14:37.385
api-v1.optima.lu 2026-07-30 16:14:37.385
api-v2.optima.lu 2026-07-30 16:14:37.385
api.assets.ocalhost.optima.lu 2026-07-15 07:43:37.194
api.awbjfshop.optima.lu
1970-01-01 00:00:00.000
api.optima.lu 2026-07-30 16:14:37.385
api.rslquazn.optima.lu
1970-01-01 00:00:00.000
api.www.assets.optima.lu
1970-01-01 00:00:00.000
api.www.backoffice.optima.lu
1970-01-01 00:00:00.000
api.www.m.optima.lu
1970-01-01 00:00:00.000
api.www.xakuawww.app.optima.lu
1970-01-01 00:00:00.000
api1.optima.lu 2026-07-30 16:14:37.385
api2.optima.lu 2026-07-30 16:14:37.385
app.optima.lu 2026-07-30 16:14:37.385
apps.optima.lu 2026-07-30 16:14:37.385
archive.optima.lu 2026-07-30 16:14:37.385
argocd.optima.lu 2026-07-30 16:14:37.385
artifactory.optima.lu 2026-07-30 16:14:37.385
assets.ocalhost.optima.lu
1970-01-01 00:00:00.000
assets.optima.lu 2026-07-30 16:14:37.385
auth.optima.lu 2026-07-30 16:14:37.385
autoconfig.optima.lu 2026-07-30 16:14:37.385
autodiscover.optima.lu 2026-07-30 16:14:37.385
awbjfshop.optima.lu 2026-07-19 21:30:51.836
axojfsly.optima.lu
1970-01-01 00:00:00.000
axwrhqkn.optima.lu 2026-06-15 17:47:02.240
b1c-a3c3-1b9342091d79.optima.lu
1970-01-01 00:00:00.000
backoffice.optima.lu
1970-01-01 00:00:00.000
backup.optima.lu 2026-07-30 16:14:37.385
backups.optima.lu 2026-07-30 16:14:37.385
balancer.optima.lu 2026-07-30 16:14:37.385
bamboo.optima.lu 2026-07-30 16:14:37.385
bastion.optima.lu 2026-07-30 16:14:37.385
beta.awbjfshop.optima.lu
1970-01-01 00:00:00.000
beta.optima.lu 2026-07-30 16:14:37.385
billing.optima.lu 2026-07-30 16:14:37.385
bitbucket.optima.lu 2026-07-30 16:14:37.385
blog.optima.lu 2026-07-30 16:14:37.385
bosshomenc.optima.lu
1970-01-01 00:00:00.000
bounce.optima.lu 2026-07-30 16:14:37.385
build.optima.lu 2026-07-30 16:14:37.385
buy.optima.lu 2026-07-30 16:14:37.385
cabinet.optima.lu
1970-01-01 00:00:00.000
cache.optima.lu 2026-07-30 16:14:37.385
cacti.optima.lu 2026-07-30 16:14:37.385
canary.optima.lu 2026-07-30 16:14:37.385
cart.optima.lu 2026-07-30 16:14:37.385
cd.optima.lu 2026-07-30 16:14:37.385
cdn.optima.lu 2026-07-30 16:14:37.385
checkout.optima.lu 2026-07-30 16:14:37.385
ci.optima.lu 2026-07-30 16:14:37.385
circleci.optima.lu 2026-07-30 16:14:37.385
community.optima.lu 2026-07-30 16:14:37.385
confluence.optima.lu 2026-07-30 16:14:37.385
console.optima.lu 2026-07-30 16:14:37.385
control.optima.lu 2026-07-30 16:14:37.385
corp.optima.lu 2026-07-30 16:14:37.385
cp.optima.lu 2026-07-30 16:14:37.385
cpanel.optima.lu 2026-07-30 16:14:37.385
czgxdnkl.optima.lu 2026-07-26 03:13:36.552
dashboard.optima.lu 2026-07-30 16:14:37.385
database.optima.lu 2026-07-30 16:14:37.385
datadog.optima.lu 2026-07-30 16:14:37.385
db.optima.lu 2026-07-30 16:14:37.385
demo.optima.lu 2026-07-30 16:14:37.385
demo.xakuaapp.optima.lu
1970-01-01 00:00:00.000
deploy.optima.lu 2026-07-30 16:14:37.385
dev.eifwiwww.dev.optima.lu
1970-01-01 00:00:00.000
dev.optima.lu 2026-07-30 16:14:37.385
dev.rslquazn.optima.lu
1970-01-01 00:00:00.000
dev.test.optima.lu
1970-01-01 00:00:00.000
dev.www.assets.optima.lu
1970-01-01 00:00:00.000
dev.www.shop.optima.lu
1970-01-01 00:00:00.000
dev.www.xakuaapp.optima.lu
1970-01-01 00:00:00.000
develop.optima.lu 2026-07-30 16:14:37.385
development.optima.lu 2026-07-30 16:14:37.385
directadmin.optima.lu 2026-07-30 16:14:37.385
dl.optima.lu 2026-07-30 16:14:37.385
dns.optima.lu 2026-07-30 16:14:37.385
dns1.optima.lu 2026-07-30 16:14:37.385
dns2.optima.lu 2026-07-30 16:14:37.385
docker.optima.lu 2026-07-30 16:14:37.385
docs.optima.lu 2026-07-30 16:14:37.385
documentation.optima.lu 2026-07-30 16:14:37.385
downloads.optima.lu 2026-07-30 16:14:37.385
edge.optima.lu 2026-07-30 16:14:37.385
eifwiwww.dev.optima.lu
1970-01-01 00:00:00.000
elastic.optima.lu 2026-07-30 16:14:37.385
encrypt.optima.lu 2026-07-30 16:14:37.385
es.optima.lu 2026-07-30 16:14:37.385
events.optima.lu 2026-07-30 16:14:37.385
exchange.optima.lu 2026-07-30 16:14:37.385
files.optima.lu 2026-07-30 16:14:37.385
firewall.optima.lu 2026-07-30 16:14:37.385
forum.optima.lu 2026-07-30 16:14:37.385
ftp.optima.lu 2026-07-30 16:14:37.385

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

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
TXT v=spf1 mx ip4:85.13.146.180 a:dd52822.kasserver.com -all 2026-07-16 17:51:31.792 2026-07-27 21:00:01.298
NS ns5.kasserver.com 2026-07-16 17:51:31.792 2026-07-27 21:00:01.298
MX 10 w011fb13.kasserver.com 2026-07-16 17:51:31.792 2026-07-27 21:00:01.298
A 52.59.15.250 2026-07-16 17:51:31.792 2026-07-27 21:00:01.298
NS ns6.kasserver.com 2026-07-16 17:51:31.792 2026-07-27 21:00:01.298