DNS Lookup Tool
Query comprehensive DNS records for any domain. Get A, AAAA, MX, TXT, NS, CAA, SRV, DNSKEY and more.
DNS Records for 
ietf.org
Records: 26
Response Time: 34ms
DNSSEC: Enabled
DNS Provider: 
Cloudflare
Security:
✓ SPF soft
✓ DMARC none
Address Records
IP addresses the domain points to
| Type | Name | Value | TTL |
|---|---|---|---|
| A | ietf.org | 104.16.44.99 🇺🇸 US AS13335 CLOUDFLARENET - Cloudflare, Inc., US | 5m |
| A | ietf.org | 104.16.45.99 🇺🇸 US AS13335 CLOUDFLARENET - Cloudflare, Inc., US | 5m |
| AAAA | ietf.org | 2606:4700::6810:2c63 | 5m |
| AAAA | ietf.org | 2606:4700::6810:2d63 | 5m |
Mail Records
Mail servers for the domain
| Type | Name | Value | TTL |
|---|---|---|---|
| MX | ietf.org | 0 mail2.ietf.org. | 1m |
Name Records
Nameservers and aliases
| Type | Name | Value | TTL |
|---|---|---|---|
| NS | ietf.org | ken.ns.cloudflare.com. | 1d |
| NS | ietf.org | jill.ns.cloudflare.com. | 1d |
| SOA | ietf.org | jill.ns.cloudflare.com. dns.cloudflare.com. 2403914388 10000 2400 604800 1800 | 30m |
Text & Verification
SPF, DKIM, DMARC, and verification
| Type | Name | Value | TTL |
|---|---|---|---|
| TXT | _dmarc.ietf.org | "v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email,mailto:dmarc-report@ietf.org" | 5m |
| TXT | ietf.org | "vs58md9pf8hu6knlglfda9lk6g" | 5m |
| TXT | ietf.org | "ca3-5567e36d3f9947308ac2892e009840cc" | 5m |
| TXT | ietf.org | "v=spf1 ip4:166.84.6.31 ip4:166.84.7.238 ip6:2602:f977:800:f7f6::/64 ip4:166.84.7.34 ip6:2602:f977:800::e276:63ff:fe66:3400 include:_spf.google.com include:spf.hostedrt.com ~all" | 5m |
Service Discovery
Service endpoints and bindings
| Type | Name | Value | TTL |
|---|---|---|---|
| HTTPS | ietf.org | \# 61 00 01 00 00 01 00 06 02 68 33 02 68 32 00 04 00 08 68 10 2c 63 68 10 2d 63 00 06 00 20 26 06 47 00 00 00 00 00 00 00 00 00 68 10 2c 63 26 06 47 00 00 00 00 00 00 00 00 00 68 10 2d 63 | 5m |
Security & Certificates
DNSSEC, CA restrictions, and keys
| Type | Name | Value | TTL |
|---|---|---|---|
| DNSKEY | ietf.org | 256 3 ECDSAP256SHA256 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA== | 17m |
| DNSKEY | ietf.org | 257 3 ECDSAP256SHA256 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iUzy1L53eKGQ== | 17m |
| DS | ietf.org | 2371 ECDSAP256SHA256 2 b1ae88aff068ddec3f7ff662f47d6599c74134425c67106e6c203942d6227ea4 | 1h |
Queried at 5/10/2026, 8:38:59 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=ietf.org Response for ietf.org Live Data
{
"success": true,
"data": {
"domain": "ietf.org",
"queryTimeMs": 34,
"dnssec": true,
"dnsProvider": "Cloudflare",
"records": [
{
"type": "46",
"name": "_dmarc.ietf.org",
"value": "TXT ECDSAP256SHA256 3 300 1778535539 1778355539 34505 ietf.org. 9iS9LzEBKXpBqJdp/aAO5OGI9yOChO/GXkpp9I0mjKl0/+t+VawGuJYsNH+WJxONMS0zLIwLbjlHqgd7+98XfA==",
"ttl": 300
},
{
"type": "46",
"name": "ietf.org",
"value": "A ECDSAP256SHA256 2 300 1778535539 1778355539 34505 ietf.org. mXhsd1bTq1AQoV7Iqmcj/DMJBMoEMXxPCaycW2//JZL2AHLaaZo15Vr2xJyQYPy0cDQr0tc7I8GYj5gMYL1hIA==",
"ttl": 300
},
{
"type": "46",
"name": "ietf.org",
"value": "AAAA ECDSAP256SHA256 2 300 1778535539 1778355539 34505 ietf.org. RV/6JTb0+spZ7gB32xrW/pbf2LQIUCfCLtWUfCgTA8kuo/2mXSQpSGWtLCiZIW4w1gaJGUr9z5X57r/pDhr/pg==",
"ttl": 300
},
{
"type": "46",
"name": "ietf.org",
"value": "MX ECDSAP256SHA256 2 60 1778535539 1778355539 34505 ietf.org. 9wW/bkfoaoPxEw0VGSMIiwVDD5qQPCZx5AV9VkQdvcnxRdFRxFgloJ3cxf9e+zDOybTKF2d+ke0iKeTcUnfsGw==",
"ttl": 60
},
{
"type": "46",
"name": "ietf.org",
"value": "NS ECDSAP256SHA256 2 86400 1778535539 1778355539 34505 ietf.org. B7iqxOfN3TlcCOQU4s4PvXfafEq6nVxQapKUHNpZ/vci8h4Yom+JKhqoVJuz2cfZXHbUAdZXpMOS3X86/ErCLQ==",
"ttl": 86400
},
{
"type": "46",
"name": "ietf.org",
"value": "SOA ECDSAP256SHA256 2 1800 1778535539 1778355539 34505 ietf.org. GRIA86beabK9qrcf6EHYiWyP8A96mWW8iSCYPFXYvIabkynP7Rhyaw3+WrvF2Cq0jdGm+BzhnZ609br35UDrTw==",
"ttl": 1800
},
{
"type": "46",
"name": "ietf.org",
"value": "TXT ECDSAP256SHA256 2 300 1778535539 1778355539 34505 ietf.org. plmKkSraE2nrbw/yOGsmkl216RJ0j2n7M0JAqWheev3aL7Ds1SzbGnj7GGvRkjvOETIJZJKQJJm1CLjlGfv0uA==",
"ttl": 300
},
{
"type": "46",
"name": "ietf.org",
"value": "HTTPS ECDSAP256SHA256 2 300 1778535539 1778355539 34505 ietf.org. GBb+CZfw+P5uwcogQZKN4zJpbjWHY9fbeeTUglKbvCtSQ0ISGhx0sBbna4rQB3/y3uBwqWcS7qAPamqpYeVbeA==",
"ttl": 300
},
{
"type": "46",
"name": "ietf.org",
"value": "DNSKEY ECDSAP256SHA256 2 3600 1781760622 1776490222 2371 ietf.org. D6uBzzaMGLsNVlMO6YGLqe5FWQGvtRwjjqu0daX11d3C6TdLURu1bDJiZkszbL+3BDu8E1BhnNX/qNGJMH0UXA==",
"ttl": 1062
},
{
"type": "46",
"name": "ietf.org",
"value": "DS RSASHA256 2 3600 1780155424 1778337424 39684 org. mzkl9tFLIlNqKs3BT9ACD8nYChC5lTLy4hwnHe9OxtgGbvLZK/vh1RVpO7Ve3n4tYMcTvsE6LtetEWgGfHEhhWIs5va+76bS2A/TS5kP1EM8FuO8PMUYyfIO1DIkwEXlGJlkHfjlxFbCFBDvCUSRzxur+w13xJTr/0iKjGhd7WI=",
"ttl": 3600
},
{
"type": "A",
"name": "ietf.org",
"value": "104.16.44.99",
"ttl": 300,
"geo": {
"ip": "104.16.44.99",
"asn": 13335,
"country": "US",
"asnName": "CLOUDFLARENET - Cloudflare, Inc., US"
}
},
{
"type": "A",
"name": "ietf.org",
"value": "104.16.45.99",
"ttl": 300,
"geo": {
"ip": "104.16.45.99",
"asn": 13335,
"country": "US",
"asnName": "CLOUDFLARENET - Cloudflare, Inc., US"
}
},
{
"type": "AAAA",
"name": "ietf.org",
"value": "2606:4700::6810:2c63",
"ttl": 300,
"geo": {
"ip": "2606:4700::6810:2c63"
}
},
{
"type": "AAAA",
"name": "ietf.org",
"value": "2606:4700::6810:2d63",
"ttl": 300,
"geo": {
"ip": "2606:4700::6810:2d63"
}
},
{
"type": "MX",
"name": "ietf.org",
"value": "0 mail2.ietf.org.",
"ttl": 60
},
{
"type": "NS",
"name": "ietf.org",
"value": "ken.ns.cloudflare.com.",
"ttl": 86400
},
{
"type": "NS",
"name": "ietf.org",
"value": "jill.ns.cloudflare.com.",
"ttl": 86400
},
{
"type": "SOA",
"name": "ietf.org",
"value": "jill.ns.cloudflare.com. dns.cloudflare.com. 2403914388 10000 2400 604800 1800",
"ttl": 1800
},
{
"type": "TXT",
"name": "_dmarc.ietf.org",
"value": "\"v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email,mailto:dmarc-report@ietf.org\"",
"ttl": 300
},
{
"type": "TXT",
"name": "ietf.org",
"value": "\"vs58md9pf8hu6knlglfda9lk6g\"",
"ttl": 300
},
{
"type": "TXT",
"name": "ietf.org",
"value": "\"ca3-5567e36d3f9947308ac2892e009840cc\"",
"ttl": 300
},
{
"type": "TXT",
"name": "ietf.org",
"value": "\"v=spf1 ip4:166.84.6.31 ip4:166.84.7.238 ip6:2602:f977:800:f7f6::/64 ip4:166.84.7.34 ip6:2602:f977:800::e276:63ff:fe66:3400 include:_spf.google.com include:spf.hostedrt.com ~all\"",
"ttl": 300
},
{
"type": "HTTPS",
"name": "ietf.org",
"value": "\\# 61 00 01 00 00 01 00 06 02 68 33 02 68 32 00 04 00 08 68 10 2c 63 68 10 2d 63 00 06 00 20 26 06 47 00 00 00 00 00 00 00 00 00 68 10 2c 63 26 06 47 00 00 00 00 00 00 00 00 00 68 10 2d 63",
"ttl": 300
},
{
"type": "DNSKEY",
"name": "ietf.org",
"value": "256 3 ECDSAP256SHA256 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==",
"ttl": 1062
},
{
"type": "DNSKEY",
"name": "ietf.org",
"value": "257 3 ECDSAP256SHA256 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==",
"ttl": 1062
},
{
"type": "DS",
"name": "ietf.org",
"value": "2371 ECDSAP256SHA256 2 b1ae88aff068ddec3f7ff662f47d6599c74134425c67106e6c203942d6227ea4",
"ttl": 3600
}
],
"queriedAt": "2026-05-10T20:38:59.627Z"
}
}