DNS Lookup Tool
Query comprehensive DNS records for any domain. Get A, AAAA, MX, TXT, NS, CAA, SRV, DNSKEY and more.
DNS Records for 
stackexchange.com
Records: 28
Response Time: 19ms
DNSSEC: Disabled
DNS Provider: 
Cloudflare
Security:
✓ SPF soft
✓ DMARC reject
Address Records
IP addresses the domain points to
| Type | Name | Value | TTL |
|---|---|---|---|
| A | stackexchange.com | 198.252.206.1 🇺🇸 US AS13335 CLOUDFLARENET - Cloudflare, Inc., US | 5m |
Mail Records
Mail servers for the domain
| Type | Name | Value | TTL |
|---|---|---|---|
| MX | stackexchange.com | 1 aspmx.l.google.com. | 5m |
| MX | stackexchange.com | 10 alt3.aspmx.l.google.com. | 5m |
| MX | stackexchange.com | 10 alt4.aspmx.l.google.com. | 5m |
| MX | stackexchange.com | 5 alt1.aspmx.l.google.com. | 5m |
| MX | stackexchange.com | 5 alt2.aspmx.l.google.com. | 5m |
Name Records
Nameservers and aliases
| Type | Name | Value | TTL |
|---|---|---|---|
| NS | stackexchange.com | damian.ns.cloudflare.com. | 1d |
| NS | stackexchange.com | sureena.ns.cloudflare.com. | 1d |
| SOA | stackexchange.com | damian.ns.cloudflare.com. dns.cloudflare.com. 2404030483 10000 2400 604800 1800 | 30m |
Text & Verification
SPF, DKIM, DMARC, and verification
| Type | Name | Value | TTL |
|---|---|---|---|
| TXT | _dmarc.stackexchange.com | "v=DMARC1; p=reject; pct=100; rua=mailto:dmarc-aggregates@stackoverflow.com; ruf=mailto:dmarc-forensics@stackoverflow.com; fo=1" | 5m |
| TXT | stackexchange.com | "OSGRXZDHB" | 5m |
| TXT | stackexchange.com | "google-site-verification=PbDz-gjfB8Zt-6fgjpPjyh5-Qo2HsJp95qHdq4E0Gvk" | 5m |
| TXT | stackexchange.com | "lucid-verify-Ru9jD4dmh4XuV3h" | 5m |
| TXT | stackexchange.com | "v=spf1 ip4:52.38.191.241 include:_spf1.stackexchange.com ~all" | 5m |
Service Discovery
Service endpoints and bindings
| Type | Name | Value | TTL |
|---|---|---|---|
| HTTPS | stackexchange.com | \# 18 00 01 00 00 01 00 03 02 68 32 00 04 00 04 c6 fc ce 01 | 5m |
Security & Certificates
DNSSEC, CA restrictions, and keys
| Type | Name | Value | TTL |
|---|---|---|---|
| CAA | stackexchange.com | \# 19 00 05 69 73 73 75 65 63 6f 6d 6f 64 6f 63 61 2e 63 6f 6d | 5m |
| CAA | stackexchange.com | \# 45 00 05 69 73 73 75 65 64 69 67 69 63 65 72 74 2e 63 6f 6d 3b 20 63 61 6e 73 69 67 6e 68 74 74 70 65 78 63 68 61 6e 67 65 73 3d 79 65 73 | 5m |
| CAA | stackexchange.com | \# 22 00 05 69 73 73 75 65 6c 65 74 73 65 6e 63 72 79 70 74 2e 6f 72 67 | 5m |
| CAA | stackexchange.com | \# 41 00 05 69 73 73 75 65 70 6b 69 2e 67 6f 6f 67 3b 20 63 61 6e 73 69 67 6e 68 74 74 70 65 78 63 68 61 6e 67 65 73 3d 79 65 73 | 5m |
| CAA | stackexchange.com | \# 18 00 05 69 73 73 75 65 73 65 63 74 69 67 6f 2e 63 6f 6d | 5m |
| CAA | stackexchange.com | \# 14 00 05 69 73 73 75 65 73 73 6c 2e 63 6f 6d | 5m |
| CAA | stackexchange.com | \# 23 00 09 69 73 73 75 65 77 69 6c 64 63 6f 6d 6f 64 6f 63 61 2e 63 6f 6d | 5m |
| CAA | stackexchange.com | \# 49 00 09 69 73 73 75 65 77 69 6c 64 64 69 67 69 63 65 72 74 2e 63 6f 6d 3b 20 63 61 6e 73 69 67 6e 68 74 74 70 65 78 63 68 61 6e 67 65 73 3d 79 65 73 | 5m |
| CAA | stackexchange.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 | 5m |
| CAA | stackexchange.com | \# 45 00 09 69 73 73 75 65 77 69 6c 64 70 6b 69 2e 67 6f 6f 67 3b 20 63 61 6e 73 69 67 6e 68 74 74 70 65 78 63 68 61 6e 67 65 73 3d 79 65 73 | 5m |
| CAA | stackexchange.com | \# 22 00 09 69 73 73 75 65 77 69 6c 64 73 65 63 74 69 67 6f 2e 63 6f 6d | 5m |
| CAA | stackexchange.com | \# 18 00 09 69 73 73 75 65 77 69 6c 64 73 73 6c 2e 63 6f 6d | 5m |
| CAA | stackexchange.com | \# 45 80 05 69 6f 64 65 66 6d 61 69 6c 74 6f 3a 73 79 73 61 64 6d 69 6e 2d 74 65 61 6d 40 73 74 61 63 6b 6f 76 65 72 66 6c 6f 77 2e 63 6f 6d | 5m |
Queried at 5/12/2026, 8:58:12 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=stackexchange.com Response for stackexchange.com Live Data
{
"success": true,
"data": {
"domain": "stackexchange.com",
"queryTimeMs": 19,
"dnssec": false,
"dnsProvider": "Cloudflare",
"records": [
{
"type": "A",
"name": "stackexchange.com",
"value": "198.252.206.1",
"ttl": 300,
"geo": {
"ip": "198.252.206.1",
"asn": 13335,
"country": "US",
"asnName": "CLOUDFLARENET - Cloudflare, Inc., US"
}
},
{
"type": "MX",
"name": "stackexchange.com",
"value": "1 aspmx.l.google.com.",
"ttl": 300
},
{
"type": "MX",
"name": "stackexchange.com",
"value": "10 alt3.aspmx.l.google.com.",
"ttl": 300
},
{
"type": "MX",
"name": "stackexchange.com",
"value": "10 alt4.aspmx.l.google.com.",
"ttl": 300
},
{
"type": "MX",
"name": "stackexchange.com",
"value": "5 alt1.aspmx.l.google.com.",
"ttl": 300
},
{
"type": "MX",
"name": "stackexchange.com",
"value": "5 alt2.aspmx.l.google.com.",
"ttl": 300
},
{
"type": "NS",
"name": "stackexchange.com",
"value": "damian.ns.cloudflare.com.",
"ttl": 86400
},
{
"type": "NS",
"name": "stackexchange.com",
"value": "sureena.ns.cloudflare.com.",
"ttl": 86400
},
{
"type": "SOA",
"name": "stackexchange.com",
"value": "damian.ns.cloudflare.com. dns.cloudflare.com. 2404030483 10000 2400 604800 1800",
"ttl": 1800
},
{
"type": "TXT",
"name": "_dmarc.stackexchange.com",
"value": "\"v=DMARC1; p=reject; pct=100; rua=mailto:dmarc-aggregates@stackoverflow.com; ruf=mailto:dmarc-forensics@stackoverflow.com; fo=1\"",
"ttl": 300
},
{
"type": "TXT",
"name": "stackexchange.com",
"value": "\"OSGRXZDHB\"",
"ttl": 300
},
{
"type": "TXT",
"name": "stackexchange.com",
"value": "\"google-site-verification=PbDz-gjfB8Zt-6fgjpPjyh5-Qo2HsJp95qHdq4E0Gvk\"",
"ttl": 300
},
{
"type": "TXT",
"name": "stackexchange.com",
"value": "\"lucid-verify-Ru9jD4dmh4XuV3h\"",
"ttl": 300
},
{
"type": "TXT",
"name": "stackexchange.com",
"value": "\"v=spf1 ip4:52.38.191.241 include:_spf1.stackexchange.com ~all\"",
"ttl": 300
},
{
"type": "HTTPS",
"name": "stackexchange.com",
"value": "\\# 18 00 01 00 00 01 00 03 02 68 32 00 04 00 04 c6 fc ce 01",
"ttl": 300
},
{
"type": "CAA",
"name": "stackexchange.com",
"value": "\\# 19 00 05 69 73 73 75 65 63 6f 6d 6f 64 6f 63 61 2e 63 6f 6d",
"ttl": 300
},
{
"type": "CAA",
"name": "stackexchange.com",
"value": "\\# 45 00 05 69 73 73 75 65 64 69 67 69 63 65 72 74 2e 63 6f 6d 3b 20 63 61 6e 73 69 67 6e 68 74 74 70 65 78 63 68 61 6e 67 65 73 3d 79 65 73",
"ttl": 300
},
{
"type": "CAA",
"name": "stackexchange.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": 300
},
{
"type": "CAA",
"name": "stackexchange.com",
"value": "\\# 41 00 05 69 73 73 75 65 70 6b 69 2e 67 6f 6f 67 3b 20 63 61 6e 73 69 67 6e 68 74 74 70 65 78 63 68 61 6e 67 65 73 3d 79 65 73",
"ttl": 300
},
{
"type": "CAA",
"name": "stackexchange.com",
"value": "\\# 18 00 05 69 73 73 75 65 73 65 63 74 69 67 6f 2e 63 6f 6d",
"ttl": 300
},
{
"type": "CAA",
"name": "stackexchange.com",
"value": "\\# 14 00 05 69 73 73 75 65 73 73 6c 2e 63 6f 6d",
"ttl": 300
},
{
"type": "CAA",
"name": "stackexchange.com",
"value": "\\# 23 00 09 69 73 73 75 65 77 69 6c 64 63 6f 6d 6f 64 6f 63 61 2e 63 6f 6d",
"ttl": 300
},
{
"type": "CAA",
"name": "stackexchange.com",
"value": "\\# 49 00 09 69 73 73 75 65 77 69 6c 64 64 69 67 69 63 65 72 74 2e 63 6f 6d 3b 20 63 61 6e 73 69 67 6e 68 74 74 70 65 78 63 68 61 6e 67 65 73 3d 79 65 73",
"ttl": 300
},
{
"type": "CAA",
"name": "stackexchange.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": 300
},
{
"type": "CAA",
"name": "stackexchange.com",
"value": "\\# 45 00 09 69 73 73 75 65 77 69 6c 64 70 6b 69 2e 67 6f 6f 67 3b 20 63 61 6e 73 69 67 6e 68 74 74 70 65 78 63 68 61 6e 67 65 73 3d 79 65 73",
"ttl": 300
},
{
"type": "CAA",
"name": "stackexchange.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": 300
},
{
"type": "CAA",
"name": "stackexchange.com",
"value": "\\# 18 00 09 69 73 73 75 65 77 69 6c 64 73 73 6c 2e 63 6f 6d",
"ttl": 300
},
{
"type": "CAA",
"name": "stackexchange.com",
"value": "\\# 45 80 05 69 6f 64 65 66 6d 61 69 6c 74 6f 3a 73 79 73 61 64 6d 69 6e 2d 74 65 61 6d 40 73 74 61 63 6b 6f 76 65 72 66 6c 6f 77 2e 63 6f 6d",
"ttl": 300
}
],
"queriedAt": "2026-05-12T08:58:12.035Z"
}
}