DNS Report for 3u.com

• ns4.dnsv4.com

  • IPv4: 36.155.149.247, 120.241.130.111, 117.89.178.227, 163.177.5.80, 1.12.0.23, 1.12.0.26, 52.74.43.18, 112.80.181.118
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns3.dnsv4.com

  • IPv4: 52.74.43.18, 1.12.0.25, 129.211.176.242, 36.155.149.198, 117.89.178.244, 112.80.181.77, 1.12.0.24, 125.94.59.221
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

Nameserver Count - OK

• ns4.dnsv4.com

  • Status: Failed: The DNS response does not contain an answer to the question: 3u.com. IN A
  • IP(s):
  • TTL: N/A seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• ns3.dnsv4.com

  • Status: Failed: The DNS response does not contain an answer to the question: 3u.com. IN A
  • IP(s):
  • TTL: N/A seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ns4.dnsv4.com

• Serial: 1721025296
• Refresh: 3600
• Retry: 180
• Expire: 1209600
• Minimum TTL: 180

ns3.dnsv4.com

• Serial: 1721025296
• Refresh: 3600
• Retry: 180
• Expire: 1209600
• Minimum TTL: 180

Serial: 1721025296 - OK

REFRESH: 3600 - OK

RETRY: 180 - OK

EXPIRE: 1209600 - OK

MINIMUM TTL: 180 - Note: Outside recommended range (1-3 hours)

ns4.dnsv4.com

• 5 mxbiz1.qq.com ( 103.86.78.3 )
• 10 mxbiz2.qq.com ( 103.86.78.5 )

ns3.dnsv4.com

• 5 mxbiz1.qq.com ( 103.86.78.2 )
• 10 mxbiz2.qq.com ( 103.86.78.4 )

MX Record Consistency - Warning: Inconsistencies found

MX Record Count - OK

• 2.78.86.103.in-addr.arpa -> No PTR record found: The DNS query name does not exist: 2.78.86.103.in-addr.arpa.
• 4.78.86.103.in-addr.arpa -> No PTR record found: The DNS query name does not exist: 4.78.86.103.in-addr.arpa.
• 3.78.86.103.in-addr.arpa -> No PTR record found: The DNS query name does not exist: 3.78.86.103.in-addr.arpa.
• 5.78.86.103.in-addr.arpa -> No PTR record found: The DNS query name does not exist: 5.78.86.103.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 TXT records 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