DNS Lookup Tool

Query comprehensive DNS records for any domain. Get A, AAAA, MX, TXT, NS, CAA, SRV, DNSKEY and more.

Try:

RequestGuard

DNS Records for github.com

Records: 39

Response Time: 32ms

DNSSEC: Disabled

DNS Provider:

NS1

Security: ✓ SPF soft ✓ DMARC reject

Address Records

IP addresses the domain points to

1 record

Type	Name	Value	TTL
A	github.com	140.82.112.3 🇺🇸 US AS36459 GITHUB - GitHub, Inc., US	33s

Mail Records

Mail servers for the domain

1 record

Type	Name	Value	TTL
MX	github.com	0 github-com.mail.protection.outlook.com.	5m

Name Records

Nameservers and aliases

9 records

Type	Name	Value	TTL
NS	github.com	dns1.p08.nsone.net.	15m
NS	github.com	dns2.p08.nsone.net.	15m
NS	github.com	dns3.p08.nsone.net.	15m
NS	github.com	dns4.p08.nsone.net.	15m
NS	github.com	ns-1283.awsdns-32.org.	15m
NS	github.com	ns-1707.awsdns-21.co.uk.	15m
NS	github.com	ns-421.awsdns-52.com.	15m
NS	github.com	ns-520.awsdns-01.net.	15m
SOA	github.com	ns-1707.awsdns-21.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400	15m

Text & Verification

SPF, DKIM, DMARC, and verification

21 records

Type	Name	Value	TTL
TXT	_dmarc.github.com	"v=DMARC1; p=quarantine; sp=reject; pct=100; rua=mailto:dmarc@github.com; ruf=mailto:dmarc@github.com; fo=1"	5m
TXT	github.com	"00Dd0000000hHE0=1TBKg000000TN2r"	5m
TXT	github.com	"MS=6BF03E6AF5CB689E315FB6199603BABF2C88D805"	5m
TXT	github.com	"MS=ms44452932"	5m
TXT	github.com	"MS=ms58704441"	5m
TXT	github.com	"TAILSCALE-xOzoDvFUzZr5YYVCQFuD"	5m
TXT	github.com	"adobe-idp-site-verification=b92c9e999aef825edc36e0a3d847d2dbad5b2fc0e05c79ddd7a16139b48ecf4b"	5m
TXT	github.com	"apple-domain-verification=RyQhdzTl6Z6x8ZP4"	5m
TXT	github.com	"atlassian-domain-verification=jjgw98AKv2aeoYFxiL/VFaoyPkn3undEssTRuMg6C/3Fp/iqhkV4HVV7WjYlVeF8"	5m
TXT	github.com	"calendly-site-verification=at0DQARi7IZvJtXQAWhMqpmIzpvoBNF7aam5VKKxP"	5m
TXT	github.com	"docusign=087098e3-3d46-47b7-9b4e-8a23028154cd"	5m
TXT	github.com	"facebook-domain-verification=39xu4jzl7roi7x0n93ldkxjiaarx50"	5m
TXT	github.com	"google-site-verification=82Le34Flgtd15ojYhHlGF_6g72muSjamlMVThBOJpks"	5m
TXT	github.com	"google-site-verification=UTM-3akMgubp6tQtgEuAkYNYLyYAvpTnnSrDMWoDR3o"	5m
TXT	github.com	"jamf-site-verification=XtaPNIYghF_e_xRDI8CjgQ"	5m
TXT	github.com	"krisp-domain-verification=ZlyiK7XLhnaoUQb2hpak1PLY7dFkl1WE"	5m
TXT	github.com	"loom-site-verification=f3787154f1154b7880e720a511ea664d"	5m
TXT	github.com	"miro-verification=d2e174fdb00c71e0bcf58f8e58c3da2dd80dcfa9"	5m
TXT	github.com	"shopify-verification-code=t1YPwcmvnxZyBycaCpk1MPyWoFs72o"	5m
TXT	github.com	"stripe-verification=f88ef17321660a01bab1660454192e014defa29ba7b8de9633c69d6b4912217f"	5m
TXT	github.com	"v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf.salesforce.com include:servers.mcsv.net include:mktomail.com include:sendgrid.net ip4:62.253.2" "27.114 ip4:166.78.69.169 ip4:166.78.69.170 ip4:166.78.71.131 ~all"	5m

Security & Certificates

DNSSEC, CA restrictions, and keys

7 records

Type	Name	Value	TTL
CAA	github.com	\# 19 00 05 69 73 73 75 65 64 69 67 69 63 65 72 74 2e 63 6f 6d	1h
CAA	github.com	\# 21 00 05 69 73 73 75 65 67 6c 6f 62 61 6c 73 69 67 6e 2e 63 6f 6d	1h
CAA	github.com	\# 22 00 05 69 73 73 75 65 6c 65 74 73 65 6e 63 72 79 70 74 2e 6f 72 67	1h
CAA	github.com	\# 18 00 05 69 73 73 75 65 73 65 63 74 69 67 6f 2e 63 6f 6d	1h
CAA	github.com	\# 23 00 09 69 73 73 75 65 77 69 6c 64 64 69 67 69 63 65 72 74 2e 63 6f 6d	1h
CAA	github.com	\# 26 00 09 69 73 73 75 65 77 69 6c 64 6c 65 74 73 65 6e 63 72 79 70 74 2e 6f 72 67	1h
CAA	github.com	\# 22 00 09 69 73 73 75 65 77 69 6c 64 73 65 63 74 69 67 6f 2e 63 6f 6d	1h

Queried at 5/10/2026, 8:41:10 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=github.com

Response for github.com Live Data

{
  "success": true,
  "data": {
    "domain": "github.com",
    "queryTimeMs": 32,
    "dnssec": false,
    "dnsProvider": "NS1",
    "records": [
      {
        "type": "A",
        "name": "github.com",
        "value": "140.82.112.3",
        "ttl": 33,
        "geo": {
          "ip": "140.82.112.3",
          "asn": 36459,
          "country": "US",
          "asnName": "GITHUB - GitHub, Inc., US"
        }
      },
      {
        "type": "MX",
        "name": "github.com",
        "value": "0 github-com.mail.protection.outlook.com.",
        "ttl": 300
      },
      {
        "type": "NS",
        "name": "github.com",
        "value": "dns1.p08.nsone.net.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "github.com",
        "value": "dns2.p08.nsone.net.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "github.com",
        "value": "dns3.p08.nsone.net.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "github.com",
        "value": "dns4.p08.nsone.net.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "github.com",
        "value": "ns-1283.awsdns-32.org.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "github.com",
        "value": "ns-1707.awsdns-21.co.uk.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "github.com",
        "value": "ns-421.awsdns-52.com.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "github.com",
        "value": "ns-520.awsdns-01.net.",
        "ttl": 900
      },
      {
        "type": "SOA",
        "name": "github.com",
        "value": "ns-1707.awsdns-21.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400",
        "ttl": 900
      },
      {
        "type": "TXT",
        "name": "_dmarc.github.com",
        "value": "\"v=DMARC1; p=quarantine; sp=reject; pct=100; rua=mailto:dmarc@github.com; ruf=mailto:dmarc@github.com; fo=1\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"00Dd0000000hHE0=1TBKg000000TN2r\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"MS=6BF03E6AF5CB689E315FB6199603BABF2C88D805\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"MS=ms44452932\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"MS=ms58704441\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"TAILSCALE-xOzoDvFUzZr5YYVCQFuD\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"adobe-idp-site-verification=b92c9e999aef825edc36e0a3d847d2dbad5b2fc0e05c79ddd7a16139b48ecf4b\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"apple-domain-verification=RyQhdzTl6Z6x8ZP4\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"atlassian-domain-verification=jjgw98AKv2aeoYFxiL/VFaoyPkn3undEssTRuMg6C/3Fp/iqhkV4HVV7WjYlVeF8\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"calendly-site-verification=at0DQARi7IZvJtXQAWhMqpmIzpvoBNF7aam5VKKxP\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"docusign=087098e3-3d46-47b7-9b4e-8a23028154cd\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"facebook-domain-verification=39xu4jzl7roi7x0n93ldkxjiaarx50\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"google-site-verification=82Le34Flgtd15ojYhHlGF_6g72muSjamlMVThBOJpks\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"google-site-verification=UTM-3akMgubp6tQtgEuAkYNYLyYAvpTnnSrDMWoDR3o\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"jamf-site-verification=XtaPNIYghF_e_xRDI8CjgQ\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"krisp-domain-verification=ZlyiK7XLhnaoUQb2hpak1PLY7dFkl1WE\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"loom-site-verification=f3787154f1154b7880e720a511ea664d\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"miro-verification=d2e174fdb00c71e0bcf58f8e58c3da2dd80dcfa9\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"shopify-verification-code=t1YPwcmvnxZyBycaCpk1MPyWoFs72o\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"stripe-verification=f88ef17321660a01bab1660454192e014defa29ba7b8de9633c69d6b4912217f\"",
        "ttl": 300
      },
      {
        "type": "TXT",
        "name": "github.com",
        "value": "\"v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf.salesforce.com include:servers.mcsv.net include:mktomail.com include:sendgrid.net ip4:62.253.2\" \"27.114 ip4:166.78.69.169 ip4:166.78.69.170 ip4:166.78.71.131 ~all\"",
        "ttl": 300
      },
      {
        "type": "CAA",
        "name": "github.com",
        "value": "\\# 19 00 05 69 73 73 75 65 64 69 67 69 63 65 72 74 2e 63 6f 6d",
        "ttl": 3600
      },
      {
        "type": "CAA",
        "name": "github.com",
        "value": "\\# 21 00 05 69 73 73 75 65 67 6c 6f 62 61 6c 73 69 67 6e 2e 63 6f 6d",
        "ttl": 3600
      },
      {
        "type": "CAA",
        "name": "github.com",
        "value": "\\# 22 00 05 69 73 73 75 65 6c 65 74 73 65 6e 63 72 79 70 74 2e 6f 72 67",
        "ttl": 3600
      },
      {
        "type": "CAA",
        "name": "github.com",
        "value": "\\# 18 00 05 69 73 73 75 65 73 65 63 74 69 67 6f 2e 63 6f 6d",
        "ttl": 3600
      },
      {
        "type": "CAA",
        "name": "github.com",
        "value": "\\# 23 00 09 69 73 73 75 65 77 69 6c 64 64 69 67 69 63 65 72 74 2e 63 6f 6d",
        "ttl": 3600
      },
      {
        "type": "CAA",
        "name": "github.com",
        "value": "\\# 26 00 09 69 73 73 75 65 77 69 6c 64 6c 65 74 73 65 6e 63 72 79 70 74 2e 6f 72 67",
        "ttl": 3600
      },
      {
        "type": "CAA",
        "name": "github.com",
        "value": "\\# 22 00 09 69 73 73 75 65 77 69 6c 64 73 65 63 74 69 67 6f 2e 63 6f 6d",
        "ttl": 3600
      }
    ],
    "queriedAt": "2026-05-10T20:41:10.703Z"
  }
}

Rate limit: 100 req/min

Authentication: API Key

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