`rum4.perf.linkedin.com`

	CNAME	`linkedin.map.fastly.net`
	DNSSEC	⚠️ Not signed
	A	2a04:4e42:b::810^{🇺🇸 Fastly2a04:4e42:b::/48}
	A	146.75.39.42^{🇺🇸 Fastly146.75.36.0/22}

`perf.linkedin.com`

DNSSEC

⚠️ Not signed

WOT: SAFE (64/100)
WOT: SAFE (78/100)

Same first word

rum4.com

Similar names

mur4.com

4rum.com

rm4u.com

mr4u.nl

4rum.de

mr4u.com

r4um.net

urm4.com

ru4m.com

4rum.nl

4rum.net

r4um.com

4mur.com

4rum.nu

4rum.eu

umr4.ru

rm4u.at

DNS History

5 records (1 active, 4 former)

○A185.63.144.12016-12-07 → 2016-12-07 · 2 obs

● 2016-12-07 17:14:48
○ 2026-05-11 00:13:54

○A2620:109:c00c:104::b93f:90012016-12-07 → 2016-12-07 · 2 obs

● 2016-12-07 17:14:48
○ 2026-05-11 00:13:54

○CNAME2-01-2c3e-003c.cdx.cedexis.net2016-12-07 → 2016-12-07 · 2 obs

● 2016-12-07 17:14:48
○ 2026-05-11 00:13:54

●CNAMElinkedin.map.fastly.net2026-05-11 → 2026-05-11 · 2 obs

○ 2016-12-07 17:14:48
● 2026-05-11 00:13:54

○CNAMEpop-tln1.perf.linkedin.com2016-12-07 → 2016-12-07 · 2 obs

● 2016-12-07 17:14:48
○ 2026-05-11 00:13:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
linkedin.com	dns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net, dns4.p09.nsone.net...	1 record

✅ Authoritative Response

Server:13.107.222.42

NS records: dns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net, dns4.p09.nsone.net, ns3-42.azure-dns.org, ns4-42.azure-dns.info, ns1-42.azure-dns.com, ns2-42.azure-dns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linkedin.com (unsigned zone)

⏱️ Timing

Total: 363ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`linkedin.map.fastly.net`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns1-42.azure-dns.com)

Analysis

IP Addresses

Two IP numbers are pointed to by rum4.perf.linkedin.com: 2a04:4e42:b::810 and 146.75.39.42.

other host names include live.brightcove.map.fastly.net, s.nintendo.map.fastly.net, s.sni.global.fastly.net, dualstack.s.sni.global.fastly.net and atc.spotify.map.fastly.net; they share IP numbers with rum4.perf.linkedin.com.

rum4.perf.linkedin.com - robtex.com