DNS Lookup Tool

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

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DNS Records for githubusercontent.com

Records: 17
Response Time: 43ms
DNSSEC: Disabled
DNS Provider: NS1
Security: ✓ SPF strict

Name Records

Nameservers and aliases

9 records
Type Name Value TTL
NS githubusercontent.com
dns1.p01.nsone.net.
 15m
NS githubusercontent.com
dns2.p01.nsone.net.
 15m
NS githubusercontent.com
dns3.p01.nsone.net.
 15m
NS githubusercontent.com
dns4.p01.nsone.net.
 15m
NS githubusercontent.com
ns-1411.awsdns-48.org.
 15m
NS githubusercontent.com
ns-181.awsdns-22.com.
 15m
NS githubusercontent.com
ns-1867.awsdns-41.co.uk.
 15m
NS githubusercontent.com
ns-596.awsdns-10.net.
 15m
SOA githubusercontent.com
ns-1411.awsdns-48.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
 15m

Text & Verification

SPF, DKIM, DMARC, and verification

2 records
Type Name Value TTL
TXT githubusercontent.com
"globalsign-domain-verification=2wiwCKYW7kQ6LJntfIcdi5EG56lUlQIRj_VGJnEEKb"
 30s
TXT githubusercontent.com
"v=spf1 a -all"
 30s

Security & Certificates

DNSSEC, CA restrictions, and keys

6 records
Type Name Value TTL
CAA githubusercontent.com
\# 19 00 05 69 73 73 75 65 64 69 67 69 63 65 72 74 2e 63 6f 6d
 1h
CAA githubusercontent.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 githubusercontent.com
\# 18 00 05 69 73 73 75 65 73 65 63 74 69 67 6f 2e 63 6f 6d
 1h
CAA githubusercontent.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 githubusercontent.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 githubusercontent.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 5/12/2026, 8:52:41 AM

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=githubusercontent.com
Response for githubusercontent.com Live Data 
{
  "success": true,
  "data": {
    "domain": "githubusercontent.com",
    "queryTimeMs": 43,
    "dnssec": false,
    "dnsProvider": "NS1",
    "records": [
      {
        "type": "NS",
        "name": "githubusercontent.com",
        "value": "dns1.p01.nsone.net.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "githubusercontent.com",
        "value": "dns2.p01.nsone.net.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "githubusercontent.com",
        "value": "dns3.p01.nsone.net.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "githubusercontent.com",
        "value": "dns4.p01.nsone.net.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "githubusercontent.com",
        "value": "ns-1411.awsdns-48.org.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "githubusercontent.com",
        "value": "ns-181.awsdns-22.com.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "githubusercontent.com",
        "value": "ns-1867.awsdns-41.co.uk.",
        "ttl": 900
      },
      {
        "type": "NS",
        "name": "githubusercontent.com",
        "value": "ns-596.awsdns-10.net.",
        "ttl": 900
      },
      {
        "type": "SOA",
        "name": "githubusercontent.com",
        "value": "ns-1411.awsdns-48.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400",
        "ttl": 900
      },
      {
        "type": "TXT",
        "name": "githubusercontent.com",
        "value": "\"globalsign-domain-verification=2wiwCKYW7kQ6LJntfIcdi5EG56lUlQIRj_VGJnEEKb\"",
        "ttl": 30
      },
      {
        "type": "TXT",
        "name": "githubusercontent.com",
        "value": "\"v=spf1 a -all\"",
        "ttl": 30
      },
      {
        "type": "CAA",
        "name": "githubusercontent.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": "githubusercontent.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": "githubusercontent.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": "githubusercontent.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": "githubusercontent.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": "githubusercontent.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": "2026-05-12T08:52:41.903Z"
  }
}
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