DNS Lookup Tool
Query comprehensive DNS records for any domain. Get A, AAAA, MX, TXT, NS, CAA, SRV, DNSKEY and more.
DNS Records for 
aws.dev
Records: 7
Response Time: 31ms
DNSSEC: Enabled
DNS Provider: 
AWS Route 53
AWS Route 53 Security:
✓ SPF strict
✓ DMARC reject
Name Records
Nameservers and aliases
| Type | Name | Value | TTL |
|---|---|---|---|
| NS | aws.dev | ns-1108.awsdns-10.org. | 2d |
| NS | aws.dev | ns-1918.awsdns-47.co.uk. | 2d |
| NS | aws.dev | ns-399.awsdns-49.com. | 2d |
| NS | aws.dev | ns-964.awsdns-56.net. | 2d |
| SOA | aws.dev | ns-1918.awsdns-47.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400 | 15m |
Text & Verification
SPF, DKIM, DMARC, and verification
| Type | Name | Value | TTL |
|---|---|---|---|
| TXT | _dmarc.aws.dev | "v=DMARC1; p=reject; sp=none; rua=mailto:report@dmarc.amazon.com; ruf=mailto:report@dmarc.amazon.com" | 1d |
| TXT | aws.dev | "v=spf1 -all" | 1d |
Queried at 5/10/2026, 9:30:11 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=aws.dev Response for aws.dev Live Data
{
"success": true,
"data": {
"domain": "aws.dev",
"queryTimeMs": 31,
"dnssec": true,
"dnsProvider": "AWS Route 53",
"records": [
{
"type": "NS",
"name": "aws.dev",
"value": "ns-1108.awsdns-10.org.",
"ttl": 172800
},
{
"type": "NS",
"name": "aws.dev",
"value": "ns-1918.awsdns-47.co.uk.",
"ttl": 172800
},
{
"type": "NS",
"name": "aws.dev",
"value": "ns-399.awsdns-49.com.",
"ttl": 172800
},
{
"type": "NS",
"name": "aws.dev",
"value": "ns-964.awsdns-56.net.",
"ttl": 172800
},
{
"type": "SOA",
"name": "aws.dev",
"value": "ns-1918.awsdns-47.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400",
"ttl": 900
},
{
"type": "TXT",
"name": "_dmarc.aws.dev",
"value": "\"v=DMARC1; p=reject; sp=none; rua=mailto:report@dmarc.amazon.com; ruf=mailto:report@dmarc.amazon.com\"",
"ttl": 86400
},
{
"type": "TXT",
"name": "aws.dev",
"value": "\"v=spf1 -all\"",
"ttl": 86400
}
],
"queriedAt": "2026-05-10T21:30:11.978Z"
}
}