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 windows.com

Records: 21
Response Time: 49ms
DNSSEC: Disabled
DNS Provider: Azure DNS
Security: ✓ SPF strict ✓ DMARC reject

Address Records

IP addresses the domain points to

10 records
Type Name Value TTL
A windows.com
20.76.201.171
🇺🇸 US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US
1h
A windows.com
20.112.250.133
🇺🇸 US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US
1h
A windows.com
20.236.44.162
🇺🇸 US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US
1h
A windows.com
20.231.239.246
🇺🇸 US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US
1h
A windows.com
20.70.246.20
🇺🇸 US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US
1h
AAAA windows.com
2603:1010:3:3::5b
 1h
AAAA windows.com
2603:1030:c02:8::14
 1h
AAAA windows.com
2603:1020:201:10::10f
 1h
AAAA windows.com
2603:1030:20e:3::23c
 1h
AAAA windows.com
2603:1030:b:3::152
 1h

Mail Records

Mail servers for the domain

1 record
Type Name Value TTL
MX windows.com
10 mail.windows.com.
 1h

Name Records

Nameservers and aliases

5 records
Type Name Value TTL
NS windows.com
ns1-205.azure-dns.com.
 2d
NS windows.com
ns2-205.azure-dns.net.
 2d
NS windows.com
ns3-205.azure-dns.org.
 2d
NS windows.com
ns4-205.azure-dns.info.
 2d
SOA windows.com
ns1-205.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 300
 1h

Text & Verification

SPF, DKIM, DMARC, and verification

4 records
Type Name Value TTL
TXT _dmarc.windows.com
"v=DMARC1; p=reject; pct=100; rua=mailto:rua@dmarc.microsoft; ruf=mailto:ruf@dmarc.microsoft; fo=1"
 1h
TXT windows.com
"v=spf1 mx -all"
 1h
TXT windows.com
"facebook-domain-verification=d65hkhpulntsek90x3rt1cqq4y06tk"
 1h
TXT windows.com
"D-TRUST=27XN9J9VBV6S24F"
 1h

Security & Certificates

DNSSEC, CA restrictions, and keys

1 record
Type Name Value TTL
CAA windows.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

Queried at 5/10/2026, 9:31:13 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=windows.com
Response for windows.com Live Data 
{
  "success": true,
  "data": {
    "domain": "windows.com",
    "queryTimeMs": 49,
    "dnssec": false,
    "dnsProvider": "Azure DNS",
    "records": [
      {
        "type": "A",
        "name": "windows.com",
        "value": "20.76.201.171",
        "ttl": 3600,
        "geo": {
          "ip": "20.76.201.171",
          "asn": 8075,
          "country": "US",
          "asnName": "MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US"
        }
      },
      {
        "type": "A",
        "name": "windows.com",
        "value": "20.112.250.133",
        "ttl": 3600,
        "geo": {
          "ip": "20.112.250.133",
          "asn": 8075,
          "country": "US",
          "asnName": "MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US"
        }
      },
      {
        "type": "A",
        "name": "windows.com",
        "value": "20.236.44.162",
        "ttl": 3600,
        "geo": {
          "ip": "20.236.44.162",
          "asn": 8075,
          "country": "US",
          "asnName": "MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US"
        }
      },
      {
        "type": "A",
        "name": "windows.com",
        "value": "20.231.239.246",
        "ttl": 3600,
        "geo": {
          "ip": "20.231.239.246",
          "asn": 8075,
          "country": "US",
          "asnName": "MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US"
        }
      },
      {
        "type": "A",
        "name": "windows.com",
        "value": "20.70.246.20",
        "ttl": 3600,
        "geo": {
          "ip": "20.70.246.20",
          "asn": 8075,
          "country": "US",
          "asnName": "MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US"
        }
      },
      {
        "type": "AAAA",
        "name": "windows.com",
        "value": "2603:1010:3:3::5b",
        "ttl": 3600
      },
      {
        "type": "AAAA",
        "name": "windows.com",
        "value": "2603:1030:c02:8::14",
        "ttl": 3600
      },
      {
        "type": "AAAA",
        "name": "windows.com",
        "value": "2603:1020:201:10::10f",
        "ttl": 3600
      },
      {
        "type": "AAAA",
        "name": "windows.com",
        "value": "2603:1030:20e:3::23c",
        "ttl": 3600
      },
      {
        "type": "AAAA",
        "name": "windows.com",
        "value": "2603:1030:b:3::152",
        "ttl": 3600
      },
      {
        "type": "MX",
        "name": "windows.com",
        "value": "10 mail.windows.com.",
        "ttl": 3600
      },
      {
        "type": "NS",
        "name": "windows.com",
        "value": "ns1-205.azure-dns.com.",
        "ttl": 172800
      },
      {
        "type": "NS",
        "name": "windows.com",
        "value": "ns2-205.azure-dns.net.",
        "ttl": 172800
      },
      {
        "type": "NS",
        "name": "windows.com",
        "value": "ns3-205.azure-dns.org.",
        "ttl": 172800
      },
      {
        "type": "NS",
        "name": "windows.com",
        "value": "ns4-205.azure-dns.info.",
        "ttl": 172800
      },
      {
        "type": "SOA",
        "name": "windows.com",
        "value": "ns1-205.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 300",
        "ttl": 3600
      },
      {
        "type": "TXT",
        "name": "_dmarc.windows.com",
        "value": "\"v=DMARC1; p=reject; pct=100; rua=mailto:rua@dmarc.microsoft; ruf=mailto:ruf@dmarc.microsoft; fo=1\"",
        "ttl": 3600
      },
      {
        "type": "TXT",
        "name": "windows.com",
        "value": "\"v=spf1 mx -all\"",
        "ttl": 3600
      },
      {
        "type": "TXT",
        "name": "windows.com",
        "value": "\"facebook-domain-verification=d65hkhpulntsek90x3rt1cqq4y06tk\"",
        "ttl": 3600
      },
      {
        "type": "TXT",
        "name": "windows.com",
        "value": "\"D-TRUST=27XN9J9VBV6S24F\"",
        "ttl": 3600
      },
      {
        "type": "CAA",
        "name": "windows.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
      }
    ],
    "queriedAt": "2026-05-10T21:31:13.940Z"
  }
}
Rate limit: 100 req/min
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