NSToolKit
NSToolKit
free network tools

DNS records for sina.com.cn

A records

[
  {
    "type": "A",
    "value": "36.51.254.91"
  }
]

MX records

[
  {
    "type": "MX",
    "exchange": "freemx1.sinamail.sina.com.cn",
    "priority": 10
  },
  {
    "type": "MX",
    "exchange": "freemx3.sinamail.sina.com.cn",
    "priority": 10
  },
  {
    "type": "MX",
    "exchange": "freemx2.sinamail.sina.com.cn",
    "priority": 10
  }
]

NS records

[
  {
    "type": "NS",
    "value": "ns1.sina.com.cn"
  },
  {
    "type": "NS",
    "value": "ns3.sina.com.cn"
  },
  {
    "type": "NS",
    "value": "ns2.sina.com.cn"
  },
  {
    "type": "NS",
    "value": "ns4.sina.com.cn"
  }
]

TXT records

[
  {
    "type": "TXT",
    "entries": [
      "v=spf1 include:spf.sinamail.sina.com.cn -all"
    ]
  }
]

SOA records

[
  {
    "type": "SOA",
    "nsname": "ns1.sina.com.cn",
    "hostmaster": "zhihao.staff.sina.com.cn",
    "serial": 5,
    "refresh": 1800,
    "retry": 600,
    "expire": 604801,
    "minttl": 600
  }
]

What does this mean?

These records are pulled live from authoritative DNS at request time and re-validated daily. Use them to debug routing, deliverability, and TLS issues for sina.com.cn.

Related tools: DNS Lookup · SPF Checker · DMARC Lookup