Check-Host.cc

Domain

rum8.perf.linkedin.com

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

Run a live full scan of rum8.perf.linkedin.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
A/AAAA targets
Subdomains
CT + scan + body
Record Types
seen in DNS
Observed Certs
in our scans

DNS Records

A
144.2.12.25, 144.2.14.25, 144.2.15.25
AAAA
2620:119:50e5:101::9002:c19, 2620:119:50e7:101::9002:e19, 2620:119:50e8:101::9002:f19
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: www.linkedin.com
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: afd.perf.linkedin.com, dc.ads.linkedin.com, exp1.www.linkedin.com, exp2.www.linkedin.com, exp3.www.linkedin.com, exp4.www.linkedin.com, exp5.www.linkedin.com, linkedin.com, lnkd.in, px.ads.linkedin.com, px.jobs.linkedin.com, px4.ads.linkedin.com, realtime.www.linkedin.com, rum14.perf.linkedin.com, rum17.perf.linkedin.com, rum18.perf.linkedin.com, rum19.perf.linkedin.com, rum2.perf.linkedin.com, rum4.perf.linkedin.com, rum5.perf.linkedin.com, rum6.perf.linkedin.com, rum8.perf.linkedin.com, rum9.perf.linkedin.com, www.linkedin.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.

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 2620:119:50e8:101::9002:f19 2026-06-19 06:20:48.978 2026-06-19 06:20:48.978
A 144.2.15.25 2026-06-19 06:20:48.978 2026-06-19 06:20:48.978
A 144.2.14.25 2026-06-21 17:45:50.594 2026-07-27 18:25:56.107
AAAA 2620:119:50e7:101::9002:e19 2026-06-21 17:45:50.594 2026-07-27 18:25:56.107
AAAA 2620:119:50e5:101::9002:c19 2026-07-16 15:56:33.652 2026-07-16 15:56:33.652
A 144.2.12.25 2026-07-16 15:56:33.652 2026-07-16 15:56:33.652