DNS Report for 123c.vn

• ns1.vngdns.net

  • IPv4: 118.102.5.135
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns4.vngdns.vn

  • IPv4: 171.244.28.89
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns5.vngdns.net

  • IPv4: 145.40.67.250
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns2.vngdns.vn

  • IPv4: 104.155.229.180
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns3.vngdns.net

  • IPv4: 118.69.84.78
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

Nameserver Count - OK

• ns1.vngdns.net

  • Status: Responded
  • IP(s): 120.138.69.92
  • TTL: 3600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns4.vngdns.vn

  • Status: Responded
  • IP(s): 120.138.69.92
  • TTL: 3600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns5.vngdns.net

  • Status: Responded
  • IP(s): 120.138.69.92
  • TTL: 3600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns2.vngdns.vn

  • Status: Responded
  • IP(s): 120.138.69.92
  • TTL: 3600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns3.vngdns.net

  • Status: Responded
  • IP(s): 120.138.69.92
  • TTL: 3600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ns1.vngdns.net

• Serial: 2019012801
• Refresh: 3600
• Retry: 300
• Expire: 604800
• Minimum TTL: 300

ns4.vngdns.vn

• Serial: 2019012801
• Refresh: 3600
• Retry: 300
• Expire: 604800
• Minimum TTL: 300

ns5.vngdns.net

• Serial: 2019012801
• Refresh: 3600
• Retry: 300
• Expire: 604800
• Minimum TTL: 300

ns2.vngdns.vn

• Serial: 2019012801
• Refresh: 3600
• Retry: 300
• Expire: 604800
• Minimum TTL: 300

ns3.vngdns.net

• Serial: 2019012801
• Refresh: 3600
• Retry: 300
• Expire: 604800
• Minimum TTL: 300

Serial: 2019012801 - OK

REFRESH: 3600 - OK

RETRY: 300 - OK

EXPIRE: 604800 - OK

MINIMUM TTL: 300 - Note: Outside recommended range (1-3 hours)

ns1.vngdns.net

• 10 mail.123c.vn ( 120.138.69.92 )

ns4.vngdns.vn

• 10 mail.123c.vn ( 120.138.69.92 )

ns5.vngdns.net

• 10 mail.123c.vn ( 120.138.69.92 )

ns2.vngdns.vn

• 10 mail.123c.vn ( 120.138.69.92 )

ns3.vngdns.net

• 10 mail.123c.vn ( 120.138.69.92 )

MX Record Consistency - OK

MX Record Count - Warning: Only one MX record

• 92.69.138.120.in-addr.arpa -> ptr.vng.vn

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: Passed

Multiple SPF Records: Passed

SPF Record 1:

• Record: v=spf1 mx a ip4:120.138.69.92/32 ptr ~all
• SPF Syntax: Failed
• Deprecated Elements: Failed
• IP Addresses: 120.138.69.92/32
• Includes:
• DNS Lookups: 3
• Void Lookups: Failed
• Escaping Chars: Not Present
• All Mechanism: ~all

Warnings:

• SPF record contains deprecated elements
• SPF record contains void lookups (ptr)

Errors:

• SPF record syntax is invalid

• 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