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Hosting & Network
ef.cn runs on AS4837 (multi-homed across 2 networks), with email via Microsoft 365.
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 3,091 other sites on AS4837.
Recently changed networks: AS9808 → AS4837, AS136959 (as of Jul 21, 2026)
DNS Records for ef.cn
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| ef.cn | AAAA | 0 | 2408:8726:3000:fff4:3d8c:bbe9:1f70:fffe | |
| ef.cn | TXT | 0 | MS=ms54935655 | |
| ef.cn | TXT | 0 | google-site-verification=ezd1mFLw-wbfdUDWYX5Ma-PQJaqAPKVVg_c5H9i0QEs | |
| ef.cn | TXT | 0 | 9f80ywc9fx2v33bqkdtk5gtsqvgrns3d | |
| ef.cn | TXT | 0 | v=spf1include:spf.protection.outlook.com-all | |
| ef.cn | TXT | 0 | 599788569-40174738 | |
| ef.cn | TXT | 0 | atlassian-domain-verification=OyEv1iM2UoxB1lsOb2JpHP2GrA4fmv9Qh8/YXDanlP1q4NaCdrcY/8hBy1Ommy1j | |
| ef.cn | A | 0 | 27.36.125.26 | |
| ef.cn | NS | 0 | ns38.dns.cf-ns.net | |
| ef.cn | NS | 0 | ns194.dns.cf-ns.com | |
| ef.cn | SOA | 1800 | ns194.dns.cf-ns.com dns.cloudflare.com 2410071653 10000 2400 604800 1800 | |
| ef.cn | MX | 0 | ef-cn.mail.protection.outlook.com | |
| www.ef.cn | AAAA | 0 | 2409:8c38:c50:604:3c3f:52b2:97cf:fffe | |
| www.ef.cn | A | 0 | 223.85.111.172 |
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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