DNS Report for weibocdn.com

• ns1.sina.com.cn

  • IPv4: 221.179.193.14
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns2.sina.com.cn

  • IPv4: 180.149.138.199
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns3.sina.com.cn

  • IPv4: 123.125.29.99
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns4.sina.com.cn

  • IPv4: 183.60.92.12
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

Nameserver Count - OK

• ns1.sina.com.cn

  • Status: Responded
  • IP(s): 49.7.37.18
  • TTL: 60 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns2.sina.com.cn

  • Status: Responded
  • IP(s): 49.7.37.18
  • TTL: 60 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns3.sina.com.cn

  • Status: Responded
  • IP(s): 49.7.37.18
  • TTL: 60 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns4.sina.com.cn

  • Status: Responded
  • IP(s): 49.7.37.18
  • TTL: 60 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ns1.sina.com.cn

• Serial: 20050603
• Refresh: 3600
• Retry: 900
• Expire: 604800
• Minimum TTL: 400

ns2.sina.com.cn

• Serial: 20050603
• Refresh: 3600
• Retry: 900
• Expire: 604800
• Minimum TTL: 400

ns3.sina.com.cn

• Serial: 20050603
• Refresh: 3600
• Retry: 900
• Expire: 604800
• Minimum TTL: 400

ns4.sina.com.cn

• Serial: 20050603
• Refresh: 3600
• Retry: 900
• Expire: 604800
• Minimum TTL: 400

Serial: 20050603 - OK

REFRESH: 3600 - OK

RETRY: 900 - OK

EXPIRE: 604800 - OK

MINIMUM TTL: 400 - Note: Outside recommended range (1-3 hours)

ns1.sina.com.cn

• 10 mx.sina.net ( 36.51.254.76 )

ns2.sina.com.cn

• 10 mx.sina.net ( 36.51.254.76 )

ns3.sina.com.cn

• 10 mx.sina.net ( 36.51.254.76 )

ns4.sina.com.cn

• 10 mx.sina.net ( 36.51.254.76 )

MX Record Consistency - OK

MX Record Count - Warning: Only one MX record

• 76.254.51.36.in-addr.arpa -> No PTR record found: The DNS query name does not exist: 76.254.51.36.in-addr.arpa.

PTR Records - OK

• Signed: No
• Validation: Failed
• DNSKEY Records: None
• DS Records in parent zone: None
• DS at Parent: None

DNSSEC - Note: Domain is not signed with DNSSEC

Error: No DNSSEC records found

SPF Record Published: Failed

Multiple SPF Records: Passed

Errors:

• No SPF record found

• DKIM Records Found: No

Warnings:

• No DKIM records found for common selectors

• Record: None
• Syntax: Invalid
• Policy: None
• RUA (Aggregate Reports):

DMARC External Validation:

• All external domains in your DMARC record are giving permission to send them DMARC reports.

Errors:

• DMARC record does not exist