sd.linkedin.com - dns.ninja

`sd.linkedin.com`

	CNAME	`cctld.linkedin.com`
	CNAME	`cctld.es.lnkdns.net`
	CNAME	`www.linkedin.com.cdn.cloudflare.net`
	DNSSEC	⚠️ Not signed
	A	2a06:98c1:3109::6812:2929^{🇺🇸 Cloudflare2a06:98c1:3109::/48}
	A	2a06:98c1:310b::ac40:92d7^{🇺🇸 Cloudflare2a06:98c1:310b::/48}
	A	104.18.41.41^{Cloudflare104.18.41.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	A	172.64.146.215^{🇺🇸 Cloudflare172.64.146.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`linkedin.com`

	DNSSEC	⚠️ Not signed
	A	2600:1901:0:d5ad::^{🇺🇸 Google2600:1901::/32}
	A	150.171.22.12^{🇺🇸 Microsoft150.171.0.0/16 MICROSOFT}
	NS	`ns1-42.azure-dns.com` ⭐
	NS	`dns1.p09.nsone.net`
	NS	`dns2.p09.nsone.net`
	NS	`dns3.p09.nsone.net`
	NS	`dns4.p09.nsone.net`
	NS	`ns2-42.azure-dns.net`
	NS	`ns3-42.azure-dns.org`
	NS	`ns4-42.azure-dns.info`
	MX	`mail-c.linkedin.com` ⭐
	MX	`mail-d.linkedin.com` ⭐
	MX	`mail.linkedin.com` ⭐
	MX	`mail-a.linkedin.com`⁽²⁰⁾
	TXT	`448e0dc03e935ecf66d81f1ce3c26b2f2fea13756c031ffc4be91749107f3a79`
	TXT	`AFDVALIDATION=LinkedIn`
	TXT	`_cthqqp5zj8g86qf3h97heqitg2zc32b`
	TXT	`apple-domain-verification=Hp7LihDNsREwfHX9`
	TXT	`atlassian-domain-verification=dDed2VFvlDajBX8X22w52Jx/W/YLHR81SxUuraa9zNdz4aL...`
	TXT	`atlassian-domain-verification=juKdSE4GGphSmzPkhmnRJUNIn0ALdb0vsP7VSPM8TmTP7Wg...`
	TXT	`atlassian-sending-domain-verification=3bdb0597-814d-4e10-a552-5cf78f92ab3c`
	TXT	`bf5fl8sny79w4c70jxp6cp3crkqtr7qk`
	TXT	`bluebeam-verification=02px6k8snlrzd6gx3b3oqkeatbzawd`
	TXT	`docusign=11f01284-dffc-40f9-8d56-57e5261ede3f`
	TXT	`elevenlabs=hRLt8nemUjAWJSL_xhBIsKFyK4yYV089AvwkOB0cxYY`
	TXT	`google-site-verification=0Vs9yf1V6RGkuzow85OzIXKEnjpRswpDkI6RgDVspMg`
	TXT	`google-site-verification=8LaIeBMwr6K8qWeaGa4CEmfPKiZDwaT38t5mIrtaroI`
	TXT	`google-site-verification=VE9BWhjbPPNmbr3ZJcwn5hLTsz7c5KPt3zXdYyaSnSQ`
	TXT	`google-site-verification=X0LoSQsAMzR-TK4o-ULrYAwLi_fyopfRLkm_C-4N4Ts`
	TXT	`google-site-verification=anx3jpa6VKkTWRJKnglUIzm7UEn-ZCT2WqAfG7h-xOg`
	TXT	`google-site-verification=mMV_EnYaB52OhMo-jbNowf8QVIKcXV3WpXreynLFFEo`
	TXT	`google-site-verification=oJFWbtlKRblXs4smNibcoJkTJqwT6gd3XMI80VjBihE`
	TXT	`google-site-verification=vfmYHwjzUIFPzxFcyuwEToh_1kG9wvcpGgJnB-MhQn8`
	TXT	`google-site-verification=xAGz495k8RbGclhamQx1TkZSHDxOaEd95fOjc8xpbTA`
	TXT	`liveramp-site-verification=yQ2nkwhqszpGRQg_J38S60KHInPVs-dclgyNRtRrlBA`
	TXT	`miro-verification=260f00146b6d2ad1bb70d6dc07a077b672badd28`
	TXT	`v=spf1 ip4:199.101.162.0/25 ip4:108.174.3.0/24 ip4:108.174.6.0/24 ip4:108.174...`
	TXT	`vmware-cloud-verification-f4d7c1c7-ad66-450f-82fa-c17b9ee79459`
	SOA	`ns1-42.azure-dns.com`hostmaster@linkedin.com serial=1

WOT: SAFE (78/100)
rank #6 globally
rank #6 in the tld

linkedin.com

LinkedIn is a professional networking platform operated by LinkedIn Corporation, a subsidiary of Microsoft.

Key facts

Owner / operator: LinkedIn Corporation (Microsoft)
TLD:.com— gTLD
Primary purpose: professional networking site / corporate website
Status: active

History

Year	Event
2003	LinkedIn launches as a professional networking service
2011	Microsoft announces acquisition of LinkedIn
2015	LinkedIn acquires Lynda.com, expanding into online learning

Semrush Rank:#30 Keywords:49,772,012 Traffic:82,854,453/mo
WOT: SAFE (91/100)
📈 Tranco rank: #18

LinkedIn is the world's largest professional networking platform, founded in 2002 and acquired by Microsoft in 2016 for $26.2 billion. With over 900 million members across 200 countries, LinkedIn has become the dominant platform for professional identity, job searching, recruiting, and business-to-business marketing.

The platform offers features including professional profiles, job listings, company pages, LinkedIn Learning (online courses), Sales Navigator, and a professional content feed. LinkedIn Premium subscriptions generate significant revenue alongside advertising and recruiting solutions. The platform is particularly valuable for B2B marketing and thought leadership.

LinkedIn's infrastructure operates as part of Microsoft's global network, with data centers across the United States, Europe, and Asia Pacific. The company pioneered many distributed systems technologies and open-sourced projects like Kafka (real-time data streaming), Samza (stream processing), and Espresso (document database). LinkedIn processes billions of queries daily across its various services.

DNS for linkedin.com is managed through Microsoft's global DNS infrastructure, with nameservers like ns1-06.azure-dns.com. The domain uses extensive email authentication records to protect members from phishing, and LinkedIn's security team actively works to take down fraudulent domains impersonating the platform.

Subdomains

afdverify.sd.linkedin.com

Same first word

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DNS History

7 records (1 active, 6 former)

○A185.63.144.52016-12-21 → 2016-12-21 · 3 obs

● 2016-12-21 04:00:26
○ 2021-05-18 23:33:54
○ 2026-07-17 09:03:06

○A2620:109:c00c:104::b93f:90052016-12-21 → 2016-12-21 · 3 obs

● 2016-12-21 04:00:26
○ 2021-05-18 23:33:54
○ 2026-07-17 09:03:06

●CNAMEcctld.linkedin.com2016-12-21 → 2026-07-17 · 2 obs

● 2016-12-21 04:00:26
● 2026-07-17 09:03:06

○CNAMEglb-any-eu.mix.linkedin.com2016-12-21 → 2016-12-21 · 3 obs

● 2016-12-21 04:00:26
○ 2021-05-18 23:33:54
○ 2026-07-17 09:03:06

○CNAMEglb-eu.mix.linkedin.com2016-12-21 → 2016-12-21 · 3 obs

● 2016-12-21 04:00:26
○ 2021-05-18 23:33:54
○ 2026-07-17 09:03:06

○CNAMEmix.linkedin.com2016-12-21 → 2016-12-21 · 3 obs

● 2016-12-21 04:00:26
○ 2021-05-18 23:33:54
○ 2026-07-17 09:03:06

○CNAMEpop-tln1-alpha.mix.linkedin.com2016-12-21 → 2016-12-21 · 3 obs

● 2016-12-21 04:00:26
○ 2021-05-18 23:33:54
○ 2026-07-17 09:03:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, h.gtld-servers.net, e.gtld-servers.net, j.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:150.171.16.42

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: 785ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`cctld.linkedin.com`

📌 Glue Records Collected

Total: 1

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

Analysis

Hierarchy

The domain afdverify.sd.linkedin.com falls under the parent sd.linkedin.com.

IP Addresses

sd.linkedin.com points to the four IP addresses 104.18.41.41, 172.64.146.215, 2a06:98c1:3109::6812:2929 and 2a06:98c1:310b::ac40:92d7.

sec-test.panel.scayle.cloud, cf.perf.linkedin.com.cdn.cloudflare.net, ads.linkedin.com.cdn.cloudflare.net and two other host names share IP numbers with sd.linkedin.com.