DNS Lookup Tool
Query comprehensive DNS records for any domain. Get A, AAAA, MX, TXT, NS, CAA, SRV, DNSKEY and more.
DNS Records for 
linkedin.com
Records: 40
Response Time: 42ms
DNSSEC: Disabled
DNS Provider: 
NS1
Security:
✓ SPF soft
✓ DMARC reject
Address Records
IP addresses the domain points to
| Type | Name | Value | TTL |
|---|---|---|---|
| A | linkedin.com | 150.171.22.12 🇺🇸 US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US | 3m |
| AAAA | linkedin.com | 2620:1ec:50::12 | 5m |
Mail Records
Mail servers for the domain
| Type | Name | Value | TTL |
|---|---|---|---|
| MX | linkedin.com | 10 mail-a.linkedin.com. | 1h |
| MX | linkedin.com | 10 mail-c.linkedin.com. | 1h |
| MX | linkedin.com | 10 mail-d.linkedin.com. | 1h |
| MX | linkedin.com | 20 mail.linkedin.com. | 1h |
Name Records
Nameservers and aliases
| Type | Name | Value | TTL |
|---|---|---|---|
| NS | linkedin.com | dns1.p09.nsone.net. | 1d |
| NS | linkedin.com | dns2.p09.nsone.net. | 1d |
| NS | linkedin.com | dns3.p09.nsone.net. | 1d |
| NS | linkedin.com | dns4.p09.nsone.net. | 1d |
| NS | linkedin.com | ns1-42.azure-dns.com. | 1d |
| NS | linkedin.com | ns2-42.azure-dns.net. | 1d |
| NS | linkedin.com | ns3-42.azure-dns.org. | 1d |
| NS | linkedin.com | ns4-42.azure-dns.info. | 1d |
| SOA | linkedin.com | ns1-42.azure-dns.com. hostmaster.linkedin.com. 1 3600 300 604800 60 | 1h |
Text & Verification
SPF, DKIM, DMARC, and verification
| Type | Name | Value | TTL |
|---|---|---|---|
| TXT | _dmarc.linkedin.com | "v=DMARC1; p=reject; rua=mailto:d@rua.agari.com,mailto:yfy3q-9359@rua.dmarc.emailanalyst.com; ruf=mailto:d@ruf.agari.com" | 1h |
| TXT | linkedin.com | "448e0dc03e935ecf66d81f1ce3c26b2f2fea13756c031ffc4be91749107f3a79" | 1d |
| TXT | linkedin.com | "AFDVALIDATION=LinkedIn" | 1d |
| TXT | linkedin.com | "_cthqqp5zj8g86qf3h97heqitg2zc32b" | 1d |
| TXT | linkedin.com | "atlassian-domain-verification=dDed2VFvlDajBX8X22w52Jx/W/YLHR81SxUuraa9zNdz4aLjDS/RpfN11w2bxpRc" | 1d |
| TXT | linkedin.com | "atlassian-domain-verification=juKdSE4GGphSmzPkhmnRJUNIn0ALdb0vsP7VSPM8TmTP7WgbgUQPLFdNicP7bF58" | 1d |
| TXT | linkedin.com | "atlassian-sending-domain-verification=3bdb0597-814d-4e10-a552-5cf78f92ab3c" | 1d |
| TXT | linkedin.com | "bf5fl8sny79w4c70jxp6cp3crkqtr7qk" | 1d |
| TXT | linkedin.com | "bluebeam-verification=02px6k8snlrzd6gx3b3oqkeatbzawd" | 1d |
| TXT | linkedin.com | "docusign=11f01284-dffc-40f9-8d56-57e5261ede3f" | 1d |
| TXT | linkedin.com | "elevenlabs=hRLt8nemUjAWJSL_xhBIsKFyK4yYV089AvwkOB0cxYY" | 1d |
| TXT | linkedin.com | "google-site-verification=0Vs9yf1V6RGkuzow85OzIXKEnjpRswpDkI6RgDVspMg" | 1d |
| TXT | linkedin.com | "google-site-verification=8LaIeBMwr6K8qWeaGa4CEmfPKiZDwaT38t5mIrtaroI" | 1d |
| TXT | linkedin.com | "google-site-verification=VE9BWhjbPPNmbr3ZJcwn5hLTsz7c5KPt3zXdYyaSnSQ" | 1d |
| TXT | linkedin.com | "google-site-verification=X0LoSQsAMzR-TK4o-ULrYAwLi_fyopfRLkm_C-4N4Ts" | 1d |
| TXT | linkedin.com | "google-site-verification=anx3jpa6VKkTWRJKnglUIzm7UEn-ZCT2WqAfG7h-xOg" | 1d |
| TXT | linkedin.com | "google-site-verification=mMV_EnYaB52OhMo-jbNowf8QVIKcXV3WpXreynLFFEo" | 1d |
| TXT | linkedin.com | "google-site-verification=vfmYHwjzUIFPzxFcyuwEToh_1kG9wvcpGgJnB-MhQn8" | 1d |
| TXT | linkedin.com | "google-site-verification=xAGz495k8RbGclhamQx1TkZSHDxOaEd95fOjc8xpbTA" | 1d |
| TXT | linkedin.com | "liveramp-site-verification=yQ2nkwhqszpGRQg_J38S60KHInPVs-dclgyNRtRrlBA" | 1d |
| TXT | linkedin.com | "miro-verification=260f00146b6d2ad1bb70d6dc07a077b672badd28" | 1d |
| TXT | linkedin.com | "v=spf1 ip4:199.101.162.0/25 ip4:108.174.3.0/24 ip4:108.174.6.0/24 ip4:108.174.0.0/24 ip6:2620:109:c00d:104::/64 ip6:2620:109:c006:104::/64 ip6:2620:109:c003:104::/64 ip6:2620:119:50c0:207::/64 ip4:199.101.161.130 mx mx:docusign.net ~all" | 1d |
| TXT | linkedin.com | "vmware-cloud-verification-f4d7c1c7-ad66-450f-82fa-c17b9ee79459" | 1d |
Security & Certificates
DNSSEC, CA restrictions, and keys
| Type | Name | Value | TTL |
|---|---|---|---|
| CAA | linkedin.com | \# 42 00 0c 63 6f 6e 74 61 63 74 65 6d 61 69 6c 63 61 61 72 65 63 6f 72 64 61 77 61 72 65 40 6d 69 63 72 6f 73 6f 66 74 2e 63 6f 6d | 1h |
| CAA | linkedin.com | \# 37 00 0c 63 6f 6e 74 61 63 74 65 6d 61 69 6c 74 6c 73 2d 61 6c 65 72 74 73 40 6c 69 6e 6b 65 64 69 6e 2e 63 6f 6d | 1h |
Queried at 5/10/2026, 9:30:14 PM
About DNS Records
The Domain Name System (DNS) is the internet's phonebook, translating human-readable domain names into IP addresses. DNS records contain essential configuration for how a domain behaves across email, web, security, and services.
Common Records
- A/AAAA - Map domain to IPv4/IPv6 addresses
- MX - Mail servers for receiving email
- TXT - SPF, DKIM, DMARC for email security
- NS - Authoritative nameservers
- CNAME - Aliases pointing to other domains
Security Records
- CAA - Restrict which CAs can issue certificates
- DNSKEY/DS - DNSSEC cryptographic keys
- TLSA - DANE TLS certificate authentication
- SSHFP - SSH host key fingerprints
- SRV - Service discovery and endpoints
REST API
Integrate DNS lookups into your applications with our REST API. Query all record types programmatically.
GET DNS Lookup
$
curl https://api.requestguard.com/v1/dns/lookup?domain=linkedin.com Response for linkedin.com Live Data
{
"success": true,
"data": {
"domain": "linkedin.com",
"queryTimeMs": 42,
"dnssec": false,
"dnsProvider": "NS1",
"records": [
{
"type": "A",
"name": "linkedin.com",
"value": "150.171.22.12",
"ttl": 209,
"geo": {
"ip": "150.171.22.12",
"asn": 8075,
"country": "US",
"asnName": "MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US"
}
},
{
"type": "AAAA",
"name": "linkedin.com",
"value": "2620:1ec:50::12",
"ttl": 300,
"geo": {
"ip": "2620:1ec:50::12"
}
},
{
"type": "MX",
"name": "linkedin.com",
"value": "10 mail-a.linkedin.com.",
"ttl": 3600
},
{
"type": "MX",
"name": "linkedin.com",
"value": "10 mail-c.linkedin.com.",
"ttl": 3600
},
{
"type": "MX",
"name": "linkedin.com",
"value": "10 mail-d.linkedin.com.",
"ttl": 3600
},
{
"type": "MX",
"name": "linkedin.com",
"value": "20 mail.linkedin.com.",
"ttl": 3600
},
{
"type": "NS",
"name": "linkedin.com",
"value": "dns1.p09.nsone.net.",
"ttl": 86400
},
{
"type": "NS",
"name": "linkedin.com",
"value": "dns2.p09.nsone.net.",
"ttl": 86400
},
{
"type": "NS",
"name": "linkedin.com",
"value": "dns3.p09.nsone.net.",
"ttl": 86400
},
{
"type": "NS",
"name": "linkedin.com",
"value": "dns4.p09.nsone.net.",
"ttl": 86400
},
{
"type": "NS",
"name": "linkedin.com",
"value": "ns1-42.azure-dns.com.",
"ttl": 86400
},
{
"type": "NS",
"name": "linkedin.com",
"value": "ns2-42.azure-dns.net.",
"ttl": 86400
},
{
"type": "NS",
"name": "linkedin.com",
"value": "ns3-42.azure-dns.org.",
"ttl": 86400
},
{
"type": "NS",
"name": "linkedin.com",
"value": "ns4-42.azure-dns.info.",
"ttl": 86400
},
{
"type": "SOA",
"name": "linkedin.com",
"value": "ns1-42.azure-dns.com. hostmaster.linkedin.com. 1 3600 300 604800 60",
"ttl": 3600
},
{
"type": "TXT",
"name": "_dmarc.linkedin.com",
"value": "\"v=DMARC1; p=reject; rua=mailto:d@rua.agari.com,mailto:yfy3q-9359@rua.dmarc.emailanalyst.com; ruf=mailto:d@ruf.agari.com\"",
"ttl": 3600
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"448e0dc03e935ecf66d81f1ce3c26b2f2fea13756c031ffc4be91749107f3a79\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"AFDVALIDATION=LinkedIn\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"_cthqqp5zj8g86qf3h97heqitg2zc32b\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"atlassian-domain-verification=dDed2VFvlDajBX8X22w52Jx/W/YLHR81SxUuraa9zNdz4aLjDS/RpfN11w2bxpRc\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"atlassian-domain-verification=juKdSE4GGphSmzPkhmnRJUNIn0ALdb0vsP7VSPM8TmTP7WgbgUQPLFdNicP7bF58\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"atlassian-sending-domain-verification=3bdb0597-814d-4e10-a552-5cf78f92ab3c\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"bf5fl8sny79w4c70jxp6cp3crkqtr7qk\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"bluebeam-verification=02px6k8snlrzd6gx3b3oqkeatbzawd\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"docusign=11f01284-dffc-40f9-8d56-57e5261ede3f\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"elevenlabs=hRLt8nemUjAWJSL_xhBIsKFyK4yYV089AvwkOB0cxYY\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"google-site-verification=0Vs9yf1V6RGkuzow85OzIXKEnjpRswpDkI6RgDVspMg\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"google-site-verification=8LaIeBMwr6K8qWeaGa4CEmfPKiZDwaT38t5mIrtaroI\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"google-site-verification=VE9BWhjbPPNmbr3ZJcwn5hLTsz7c5KPt3zXdYyaSnSQ\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"google-site-verification=X0LoSQsAMzR-TK4o-ULrYAwLi_fyopfRLkm_C-4N4Ts\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"google-site-verification=anx3jpa6VKkTWRJKnglUIzm7UEn-ZCT2WqAfG7h-xOg\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"google-site-verification=mMV_EnYaB52OhMo-jbNowf8QVIKcXV3WpXreynLFFEo\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"google-site-verification=vfmYHwjzUIFPzxFcyuwEToh_1kG9wvcpGgJnB-MhQn8\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"google-site-verification=xAGz495k8RbGclhamQx1TkZSHDxOaEd95fOjc8xpbTA\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"liveramp-site-verification=yQ2nkwhqszpGRQg_J38S60KHInPVs-dclgyNRtRrlBA\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"miro-verification=260f00146b6d2ad1bb70d6dc07a077b672badd28\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"v=spf1 ip4:199.101.162.0/25 ip4:108.174.3.0/24 ip4:108.174.6.0/24 ip4:108.174.0.0/24 ip6:2620:109:c00d:104::/64 ip6:2620:109:c006:104::/64 ip6:2620:109:c003:104::/64 ip6:2620:119:50c0:207::/64 ip4:199.101.161.130 mx mx:docusign.net ~all\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "linkedin.com",
"value": "\"vmware-cloud-verification-f4d7c1c7-ad66-450f-82fa-c17b9ee79459\"",
"ttl": 86400
},
{
"type": "CAA",
"name": "linkedin.com",
"value": "\\# 42 00 0c 63 6f 6e 74 61 63 74 65 6d 61 69 6c 63 61 61 72 65 63 6f 72 64 61 77 61 72 65 40 6d 69 63 72 6f 73 6f 66 74 2e 63 6f 6d",
"ttl": 3600
},
{
"type": "CAA",
"name": "linkedin.com",
"value": "\\# 37 00 0c 63 6f 6e 74 61 63 74 65 6d 61 69 6c 74 6c 73 2d 61 6c 65 72 74 73 40 6c 69 6e 6b 65 64 69 6e 2e 63 6f 6d",
"ttl": 3600
}
],
"queriedAt": "2026-05-10T21:30:14.177Z"
}
}