DNS Lookup Tool
Query comprehensive DNS records for any domain. Get A, AAAA, MX, TXT, NS, CAA, SRV, DNSKEY and more.
DNS Records for 
cib.com.cn
Records: 5
Response Time: 3785ms
DNSSEC: Disabled
DNS Provider: Unknown
Security:
✓ SPF strict
Mail Records
Mail servers for the domain
| Type | Name | Value | TTL |
|---|---|---|---|
| MX | cib.com.cn | 10 smtp.cib.com.cn. | 1h |
Name Records
Nameservers and aliases
| Type | Name | Value | TTL |
|---|---|---|---|
| NS | cib.com.cn | ns.cib.com.cn. | 1h |
| NS | cib.com.cn | ns1.cib.com.cn. | 1h |
| SOA | cib.com.cn | ns.cib.com.cn. hostmaster.ns.cib.com.cn. 2026050901 10800 3600 604800 900 | 15m |
Text & Verification
SPF, DKIM, DMARC, and verification
| Type | Name | Value | TTL |
|---|---|---|---|
| TXT | cib.com.cn | "v=spf1 ip4:120.35.26.0/24 ip4:117.28.225.0/24 ip4:58.22.48.0/24 -all" | 1h |
Queried at 5/10/2026, 9:33:52 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=cib.com.cn Response for cib.com.cn Live Data
{
"success": true,
"data": {
"domain": "cib.com.cn",
"queryTimeMs": 3785,
"dnssec": false,
"dnsProvider": null,
"records": [
{
"type": "MX",
"name": "cib.com.cn",
"value": "10 smtp.cib.com.cn.",
"ttl": 3600
},
{
"type": "NS",
"name": "cib.com.cn",
"value": "ns.cib.com.cn.",
"ttl": 3600
},
{
"type": "NS",
"name": "cib.com.cn",
"value": "ns1.cib.com.cn.",
"ttl": 3600
},
{
"type": "SOA",
"name": "cib.com.cn",
"value": "ns.cib.com.cn. hostmaster.ns.cib.com.cn. 2026050901 10800 3600 604800 900",
"ttl": 900
},
{
"type": "TXT",
"name": "cib.com.cn",
"value": "\"v=spf1 ip4:120.35.26.0/24 ip4:117.28.225.0/24 ip4:58.22.48.0/24 -all\"",
"ttl": 3600
}
],
"queriedAt": "2026-05-10T21:33:52.156Z"
}
}