s.weibo.com
Sina Visitor System
s.weibo.com is registered with Xiamen 35.com Information Co., Ltd. since March 20, 1999 (27.6 years). The registration expires on March 20, 2027. The site runs on Content Security Policy, HSTS. Its email security grade is D. Its SSL certificate is issued by DigiCert, Inc. and is valid for 11 more days.
- Domain age
- 27.6 yrs
- Technologies
- 2
- Email security
- D
- SSL days left
- 11
Registration
| Registrar | Xiamen 35.com Information Co., Ltd. |
|---|---|
| IANA ID | 4163 |
| Registered | March 20, 1999 |
| Expires | March 20, 2027 |
| Updated | March 21, 2026 |
| Status | server delete prohibited, server transfer prohibited, server update prohibited |
| Name servers | ns1.sina.com.cn, ns2.sina.com.cn, ns3.sina.com, ns3.sina.com.cn, ns4.sina.com, ns4.sina.com.cn |
| DNSSEC | Not signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 36.51.224.123 | 17 |
| A | 36.51.224.126 | 17 |
| MX | mx.sina.net 10 | 60 |
| NS | ns3.sina.com | 86400 |
| NS | ns3.sina.com.cn | 86400 |
| NS | ns2.sina.com.cn | 86400 |
| NS | ns1.sina.com.cn | 86400 |
| NS | ns4.sina.com | 86400 |
| NS | ns4.sina.com.cn | 86400 |
| TXT | google-site-verification=P4n0nSkaw97YPTZ_JTcVtmAnD8TzURwDaqKi8WGZSb4 | 60 |
| TXT | v=spf1 include:spf.weibo.com -all | 60 |
Technology stack
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1, DigiCert, Inc. |
| Expires | November 22, 2026 |
| Days remaining | 11 |
| Protocol | TLSv1.3 |
| Names | weibo.cn, weibo.com, admin.event.weibo.com, api.chaohua.weibo.cn, api.t.sina.com.cn, company.admin.weibo.com, company.verified.weibo.com, i.apps.sina.cn, krcom.cn, new.vip.weibo.cn, pic.tongji.weibo.com, service.account.weibo.com |
Email security
- warnDMARC has no rua= address, so you receive no reports about mail sent 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).
- goodDMARC policy is reject: mail that fails authentication is blocked.
- good1 MX record(s) found.
Homepage metadata
| Title | Sina Visitor System |
|---|---|
| Indexable | Yes |
| Word count | 0 |
About s.weibo.com
Who is the registrar of s.weibo.com?
s.weibo.com is registered with Xiamen 35.com Information Co., Ltd. (IANA ID 4163).
When does s.weibo.com expire?
The current registration of s.weibo.com expires on March 20, 2027. It was first registered on March 20, 1999.
What technology does s.weibo.com use?
We detected 2 technologies on s.weibo.com, including Content Security Policy, HSTS.
Does s.weibo.com protect its email with SPF and DMARC?
s.weibo.com scores 64/100 (grade D) for email security. DMARC has no rua= address, so you receive no reports about mail sent 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 s.weibo.com?
s.weibo.com uses ns3.sina.com, ns3.sina.com.cn, ns2.sina.com.cn, ns1.sina.com.cn, ns4.sina.com, ns4.sina.com.cn.