DNS Report for boc.cn

• ns4.boc.cn

  • IPv4: 123.124.191.65
  • IPv6: 2408:8606:2300:f::3
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns5.boc.cn

  • IPv4: 124.74.250.65
  • IPv6: 2402:93c0:20:f000::3
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns2.boc.cn

  • IPv4: 220.248.249.65
  • IPv6: 2408:8644:620:100:f000::3
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns1.boc.cn

  • IPv4: 223.244.91.65
  • IPv6: 240e:660:ba:5:f000::3
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns3.boc.cn

  • IPv4: 219.141.191.65
  • IPv6: 2402:93c0:0:f000::3
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns6.boc.cn

  • IPv4: 112.64.122.65
  • IPv6: 2408:8026:a0:87f0::3
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

Nameserver Count - OK

• ns4.boc.cn

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

• ns5.boc.cn

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

• ns2.boc.cn

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

• ns1.boc.cn

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

• ns3.boc.cn

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

• ns6.boc.cn

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

ns4.boc.cn

• Serial: 2024081005
• Refresh: 10800
• Retry: 3600
• Expire: 604800
• Minimum TTL: 60

ns5.boc.cn

• Serial: 2024081005
• Refresh: 10800
• Retry: 3600
• Expire: 604800
• Minimum TTL: 60

ns2.boc.cn

• Serial: 2024081005
• Refresh: 10800
• Retry: 3600
• Expire: 604800
• Minimum TTL: 60

ns1.boc.cn

• Serial: 2024081005
• Refresh: 10800
• Retry: 3600
• Expire: 604800
• Minimum TTL: 60

ns3.boc.cn

• Serial: 2024081005
• Refresh: 10800
• Retry: 3600
• Expire: 604800
• Minimum TTL: 60

ns6.boc.cn

• Serial: 2024081005
• Refresh: 10800
• Retry: 3600
• Expire: 604800
• Minimum TTL: 60

Serial: 2024081005 - OK

REFRESH: 10800 - OK

RETRY: 3600 - OK

EXPIRE: 604800 - OK

MINIMUM TTL: 60 - Note: Outside recommended range (1-3 hours)

ns4.boc.cn

• 10 mx.boc.cn ( 103.238.96.17 )

ns5.boc.cn

• 10 mx.boc.cn ( 103.238.96.17 )

ns2.boc.cn

• 10 mx.boc.cn ( 103.238.96.17 )

ns1.boc.cn

• 10 mx.boc.cn ( 103.238.96.17 )

ns3.boc.cn

• 10 mx.boc.cn ( 103.238.96.17 )

ns6.boc.cn

• 10 mx.boc.cn ( 103.238.96.17 )

MX Record Consistency - OK

MX Record Count - Warning: Only one MX record

• 17.96.238.103.in-addr.arpa -> mail.bank-of-china.com

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 a mx ip4:219.141.191.6 ip4:123.124.191.6 ip4:124.70.250.20 ip4:112.64.122.20 ip4:103.238.96.15 ip4:103.238.96.17 ip4:202.127.171.125 ip4:202.127.171.126 ip4:202.127.171.127 ip4:1.180.7.4 ip4:58.18.171.4 ip4:222.74.212.12 ip4:58.18.171.12 -all
• SPF Syntax: Failed
• Deprecated Elements: Passed
• IP Addresses: 219.141.191.6, 123.124.191.6, 124.70.250.20, 112.64.122.20, 103.238.96.15, 103.238.96.17, 202.127.171.125, 202.127.171.126, 202.127.171.127, 1.180.7.4, 58.18.171.4, 222.74.212.12, 58.18.171.12
• Includes:
• DNS Lookups: 3
• Void Lookups: Passed
• Escaping Chars: Not Present
• All Mechanism: -all

Errors:

• SPF record syntax is invalid

• DKIM Records Found: No

Warnings:

• No DKIM records found for common selectors

• Record: v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]
• Syntax: Valid
• Policy: quarantine
• RUA (Aggregate Reports): mailto:[email protected]
• RUF (Forensic Reports): mailto:[email protected]

DMARC External Validation:

• Valid external domains: bank-of-china.com, bank-of-china.com
• All external domains in your DMARC record are giving permission to send them DMARC reports.