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DNS Report for bankofchina.com

Date Generated: 2024-09-11 01:01:12
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Nameservers

  • ns5.bankofchina.com
    • IPv4: 124.74.250.65
    • IPv6: 2402:93c0:20:f000::3
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns4.bankofchina.com
    • IPv4: 123.124.191.65
    • IPv6: 2408:8606:2300:f::3
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns3.bankofchina.com
    • IPv4: 219.141.191.65
    • IPv6: 2402:93c0:0:f000::3
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns2.bankofchina.com
    • IPv4: 220.248.249.65
    • IPv6: 2408:8644:620:100:f000::3
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns1.bankofchina.com
    • IPv4: 223.244.91.65
    • IPv6: 240e:660:ba:5:f000::3
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns6.bankofchina.com
    • 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

Nameserver Queries

  • ns5.bankofchina.com
    • Status: Failed: The DNS response does not contain an answer to the question: bankofchina.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.bankofchina.com
    • Status: Failed: The DNS response does not contain an answer to the question: bankofchina.com. IN A
    • IP(s):
    • TTL: N/A seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • ns3.bankofchina.com
    • Status: Failed: The DNS response does not contain an answer to the question: bankofchina.com. IN A
    • IP(s):
    • TTL: N/A seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • ns2.bankofchina.com
    • Status: Failed: The DNS response does not contain an answer to the question: bankofchina.com. IN A
    • IP(s):
    • TTL: N/A seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • ns1.bankofchina.com
    • Status: Failed: The DNS response does not contain an answer to the question: bankofchina.com. IN A
    • IP(s):
    • TTL: N/A seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • ns6.bankofchina.com
    • Status: Failed: The DNS response does not contain an answer to the question: bankofchina.com. IN A
    • IP(s):
    • TTL: N/A seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)

SOA Records

ns5.bankofchina.com
  • Serial: 2024081012
  • Refresh: 10800
  • Retry: 3600
  • Expire: 604800
  • Minimum TTL: 60
ns4.bankofchina.com
  • Serial: 2024081012
  • Refresh: 10800
  • Retry: 3600
  • Expire: 604800
  • Minimum TTL: 60
ns3.bankofchina.com
  • Serial: 2024081012
  • Refresh: 10800
  • Retry: 3600
  • Expire: 604800
  • Minimum TTL: 60
ns2.bankofchina.com
  • Serial: 2024081012
  • Refresh: 10800
  • Retry: 3600
  • Expire: 604800
  • Minimum TTL: 60
ns1.bankofchina.com
  • Serial: 2024081012
  • Refresh: 10800
  • Retry: 3600
  • Expire: 604800
  • Minimum TTL: 60
ns6.bankofchina.com
  • Serial: 2024081012
  • Refresh: 10800
  • Retry: 3600
  • Expire: 604800
  • Minimum TTL: 60

Serial: 2024081012 - OK

REFRESH: 10800 - OK

RETRY: 3600 - OK

EXPIRE: 604800 - OK

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

MX Records

ns5.bankofchina.com
ns4.bankofchina.com
ns3.bankofchina.com
ns2.bankofchina.com
ns1.bankofchina.com
ns6.bankofchina.com

MX Record Consistency - OK

MX Record Count - OK

Reverse MX A records (PTR)

  • 15.96.238.103.in-addr.arpa -> mx4.bankofchina.com
  • 126.171.127.202.in-addr.arpa -> mx5.bankofchina.com
  • 15.96.238.103.in-addr.arpa -> mx1.bankofchina.com
  • 127.171.127.202.in-addr.arpa -> mx6.bankofchina.com
  • 15.96.238.103.in-addr.arpa -> mx4.bankofchina.com
  • 15.96.238.103.in-addr.arpa -> mx1.bankofchina.com

PTR Records - OK

DNSSEC

DNSSEC Inspector
  • 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 (Sender Policy Framework)

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 (DomainKeys Identified Mail)

  • DKIM Records Found: No
Warnings:
  • No DKIM records found for common selectors

DMARC

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.
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