Rank #5,042Updated November 10, 2026
12306.cn
中国铁路客户服务中心
Its email security grade is F. Its SSL certificate is issued by China Financial Certification Authority and is valid for 177 more days.
- Domain age
- —
- Technologies
- —
- Email security
- F
- SSL days left
- 177
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 117.68.54.24 | 60 |
| A | 180.163.117.56 | 60 |
| MX | mail.12306.cn 10 | 86400 |
| NS | vns1.zdnscloud.biz | 3600 |
| NS | ins1.zdnscloud.com | 3600 |
| NS | dns1.zdnscloud.info | 3600 |
| NS | cns1.zdnscloud.net | 3600 |
| TXT | v=spf1 ip4:124.127.44.251 ip4:114.251.18.38 ip4:61.232.5.39 ip4:124.127.44.247 ip4:114.251.18.30 ip4:61.232.5.30 ip4:123.151.17.4 ip4:111.33.90.4 ip4:117.10.116.4 -all | 3600 |
| AAAA | 240e:971:3020:203::2f | 60 |
| AAAA | 240e:958:12:600::2d | 60 |
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | CN, CFCA OV RSA OCA G2, China Financial Certification Authority |
| Expires | May 6, 2027 |
| Days remaining | 177 |
| Protocol | TLSv1.3 |
| Names | *.12306.cn, 12306.cn |
Email security
FScore 30/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- badNo DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain.
- warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- goodSPF record found.
- goodSPF ends with -all: servers you have not listed are rejected (hard fail).
- good1 MX record(s) found.
Homepage metadata
| Title | 中国铁路客户服务中心 |
|---|---|
| Indexable | Yes |
| Word count | 1 |
About 12306.cn
Does 12306.cn protect its email with SPF and DMARC?
12306.cn scores 30/100 (grade F) for email security. No DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain. No DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
What are the name servers of 12306.cn?
12306.cn uses vns1.zdnscloud.biz, ins1.zdnscloud.com, dns1.zdnscloud.info, cns1.zdnscloud.net.