51job.com
招聘网_人才网_找工作_求职_上前程无忧
51job.com is registered with Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn) since July 28, 1999 (27.3 years). The registration expires on July 28, 2030. The site runs on Vue.js, Baidu Analytics, Nginx. Its email security grade is F. Its SSL certificate is issued by DigiCert, Inc. and is valid for 108 more days.
- Domain age
- 27.3 yrs
- Technologies
- 3
- Email security
- F
- SSL days left
- 108
Registration
| Registrar | Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn) |
|---|---|
| IANA ID | 1599 |
| Registered | July 28, 1999 |
| Expires | July 28, 2030 |
| Updated | March 16, 2026 |
| Status | active |
| Name servers | dns.51job.com, dns.51jobapp.com, ns1.51job.com, ns2.51job.com, ns3.51job.com, ns4.51job.com, ns5.51job.com, ns6.51job.com, ns7.51job.com, ns8.51job.com, ns9.51job.com |
| DNSSEC | Not signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 114.80.176.40 | 1800 |
| MX | mxbiz2.qq.com 10 | 1800 |
| MX | mxbiz1.qq.com 5 | 1800 |
| NS | ns3.51job.com | 172800 |
| NS | dns.51job.com | 172800 |
| TXT | globalsign-domain-verification=oQILnMe2IToIO9bU8iHqhs1_uWKxl4g4Spos6nJ2S6 | 1800 |
| TXT | v=spf1 ip4:61.129.48.128/25 ip4:222.73.233.0/25 include:spf.mail.qq.com -all | 1800 |
| TXT | 17j87jzqhc1vtjr8d1mlq3kdm91kxlwv | 1800 |
Technology stack
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, DigiCert Secure Site OV G2 TLS CN RSA4096 SHA256 2022 CA1, DigiCert, Inc. |
| Expires | February 26, 2027 |
| Days remaining | 108 |
| Protocol | TLSv1.2 |
| Names | *.51job.com, 51job.com |
Email security
- 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.
- warnSPF uses 8 of the 10 allowed DNS lookups. Adding another service may break it.
- 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).
- good2 MX record(s) found. Mail is handled by Tencent Exmail.
Homepage metadata
| Title | 招聘网_人才网_找工作_求职_上前程无忧 |
|---|---|
| Description | 前程无忧人才网面向全国,提供2026准确的招聘网站信息,为企业和求职者提供人才招聘、求职、找工作、培训等在内的全方位的人力资源服务,更多求职找工作信息尽在前程无忧! |
| Language | en |
| Indexable | Yes |
| Word count | 509 |
About 51job.com
Who is the registrar of 51job.com?
51job.com is registered with Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn) (IANA ID 1599).
When does 51job.com expire?
The current registration of 51job.com expires on July 28, 2030. It was first registered on July 28, 1999.
What technology does 51job.com use?
We detected 3 technologies on 51job.com, including Baidu Analytics, Vue.js, Nginx.
Does 51job.com protect its email with SPF and DMARC?
51job.com 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. SPF uses 8 of the 10 allowed DNS lookups. Adding another service may break it.
What are the name servers of 51job.com?
51job.com uses ns3.51job.com, dns.51job.com.