DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
bt.cn runs on Vultr (multi-homed across 2 networks), with email configured.
- Hosting network
- Vultrmulti-homedAS20473VultrAS134543
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 4,999+ other sites on Vultr. Stable here since we started watching (Jul 16, 2026).
DNS Records for bt.cn
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| bt.cn | MX | 0 | 10 | mail.bt.cn |
| bt.cn | AAAA | 0 | 2001:19f0:7001:54fc:5400:2ff:fe9b:97f9 | |
| bt.cn | NS | 0 | vip4.alidns.com | |
| bt.cn | NS | 0 | vip3.alidns.com | |
| bt.cn | SOA | 600 | vip3.alidns.com hostmaster.hichina.com 2026082415 3600 1200 86400 600 | |
| bt.cn | A | 0 | 157.255.129.251 | |
| bt.cn | TXT | 0 | v=spf1 a mx -all | |
| bt.cn | TXT | 0 | 202006140135465jku4f66s84knkzqfhymyot20dlksu51gbge4j93nmd9rutp4i | |
| bt.cn | TXT | 0 | google-site-verification=T_Dp27KV30n1mzB0BwaVHZzAR7CYJ7E6DCNU30fz1CY | |
| www.bt.cn | A | 0 | 157.255.129.251 | |
| www.bt.cn | AAAA | 0 | 2409:8c34:5200:200:abcd::37 |
Get alerted the moment bt.cn's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch bt.cn continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain