Check-Host.cc

Domain

lagoon-dev.optum.com

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

Run a live full scan of lagoon-dev.optum.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
20
A/AAAA targets
Subdomains
CT + scan + body
Record Types
3
seen in DNS
Observed Certs
8
in our scans

DNS Records

A
18.173.205.33, 18.173.205.6, 18.173.205.72, 18.173.205.93
AAAA
2600:9000:28dc:0:1c:a19f:ff80:93a1, 2600:9000:28dc:1000:1c:a19f:ff80:93a1, 2600:9000:28dc:1200:1c:a19f:ff80:93a1, 2600:9000:28dc:3000:1c:a19f:ff80:93a1, 2600:9000:28dc:3400:1c:a19f:ff80:93a1, 2600:9000:28dc:3a00:1c:a19f:ff80:93a1, 2600:9000:28dc:3e00:1c:a19f:ff80:93a1, 2600:9000:28dc:5e00:1c:a19f:ff80:93a1
MX
NS
ns-1150.awsdns-15.org, ns-1949.awsdns-51.co.uk, ns-53.awsdns-06.com, ns-791.awsdns-34.net
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.

fe26d9e4fff5e5bb… google · argon2026h2
Subject: lagoon-dev.optum.com
Issuer: Sectigo Public Server Authentication CA OV R36
SANs: lagoon-dev.optum.com, lagoon-dev.uhc.com, lagoon-dev.uhg.com
Valid: 2025-09-01 00:00:00 → 2026-09-01 23:59:59
313c073ab5e4f917… google · argon2026h2
Subject: lagoon-dev.optum.com
Issuer: Sectigo Public Server Authentication CA OV R36
SANs: lagoon-dev.optum.com, lagoon-dev.uhc.com, lagoon-dev.uhg.com
Valid: 2025-09-01 00:00:00 → 2026-09-01 23:59:59
fe26d9e4fff5e5bb… google · xenon2026h2
Subject: lagoon-dev.optum.com
Issuer: Sectigo Public Server Authentication CA OV R36
SANs: lagoon-dev.optum.com, lagoon-dev.uhc.com, lagoon-dev.uhg.com
Valid: 2025-09-01 00:00:00 → 2026-09-01 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 2600:9000:28dc:d600:1c:a19f:ff80:93a1 2026-06-01 05:04:35.227 2026-06-01 05:04:35.227
A 18.173.205.72 2026-06-01 05:04:35.227 2026-06-03 03:30:32.443
A 18.173.205.6 2026-06-01 05:04:35.227 2026-06-03 03:30:32.443
NS ns-1150.awsdns-15.org 2026-06-01 05:04:35.227 2026-06-03 03:30:32.443
A 18.173.205.33 2026-06-01 05:04:35.227 2026-06-03 03:30:32.443
AAAA 2600:9000:28dc:b600:1c:a19f:ff80:93a1 2026-06-01 05:04:35.227 2026-06-01 05:04:35.227
NS ns-791.awsdns-34.net 2026-06-01 05:04:35.227 2026-06-03 03:30:32.443
NS ns-53.awsdns-06.com 2026-06-01 05:04:35.227 2026-06-03 03:30:32.443
A 18.173.205.93 2026-06-01 05:04:35.227 2026-06-03 03:30:32.443
AAAA 2600:9000:28dc:1200:1c:a19f:ff80:93a1 2026-06-01 05:04:35.227 2026-06-01 05:04:35.227
AAAA 2600:9000:28dc:3400:1c:a19f:ff80:93a1 2026-06-01 05:04:35.227 2026-06-01 05:04:35.227
AAAA 2600:9000:28dc:3000:1c:a19f:ff80:93a1 2026-06-01 05:04:35.227 2026-06-01 05:04:35.227
NS ns-1949.awsdns-51.co.uk 2026-06-01 05:04:35.227 2026-06-03 03:30:32.443
AAAA 2600:9000:28dc:9000:1c:a19f:ff80:93a1 2026-06-01 05:04:35.227 2026-06-01 05:04:35.227
AAAA 2600:9000:28dc:6600:1c:a19f:ff80:93a1 2026-06-01 05:04:35.227 2026-06-01 05:04:35.227
AAAA 2600:9000:28dc:ec00:1c:a19f:ff80:93a1 2026-06-01 05:04:35.227 2026-06-01 05:04:35.227
AAAA 2600:9000:28dc:1000:1c:a19f:ff80:93a1 2026-06-03 03:30:32.443 2026-06-03 03:30:32.443
AAAA 2600:9000:28dc:5e00:1c:a19f:ff80:93a1 2026-06-03 03:30:32.443 2026-06-03 03:30:32.443
AAAA 2600:9000:28dc:3a00:1c:a19f:ff80:93a1 2026-06-03 03:30:32.443 2026-06-03 03:30:32.443
AAAA 2600:9000:28dc:8400:1c:a19f:ff80:93a1 2026-06-03 03:30:32.443 2026-06-03 03:30:32.443
AAAA 2600:9000:28dc:0:1c:a19f:ff80:93a1 2026-06-03 03:30:32.443 2026-06-03 03:30:32.443
AAAA 2600:9000:28dc:9400:1c:a19f:ff80:93a1 2026-06-03 03:30:32.443 2026-06-03 03:30:32.443
AAAA 2600:9000:28dc:3e00:1c:a19f:ff80:93a1 2026-06-03 03:30:32.443 2026-06-03 03:30:32.443
AAAA 2600:9000:28dc:aa00:1c:a19f:ff80:93a1 2026-06-03 03:30:32.443 2026-06-03 03:30:32.443