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DNS Report for cgbchina.com.cn

Date Generated: 2024-09-14 07:13:47
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Nameservers

  • ns4.cgbchina.com.cn
    • IPv4: 221.4.156.252
    • IPv6: 2405:57c0:0:1::1
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns1.cgbchina.com.cn
    • IPv4: 113.108.153.39
    • IPv6: 2405:57c0:0:1::1
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns.cgbchina.com.cn
    • IPv4: 219.137.112.226
    • IPv6: 2405:57c0:0:1::1
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns5.cgbchina.com.cn
    • IPv4: 183.239.32.51
    • IPv6: 2405:57c0:0:1::1
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns2.cgbchina.com.cn
    • IPv4: 58.248.9.199
    • IPv6: 2405:57c0:0:1::1
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns3.cgbchina.com.cn
    • IPv4: 61.145.110.140
    • IPv6: 2405:57c0:0:1::1
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A

Nameserver Count - OK

Nameserver Queries

  • ns4.cgbchina.com.cn
    • Status: Failed: The DNS response does not contain an answer to the question: cgbchina.com.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.cgbchina.com.cn
    • Status: Failed: The DNS response does not contain an answer to the question: cgbchina.com.cn. IN A
    • IP(s):
    • TTL: N/A seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • ns.cgbchina.com.cn
    • Status: Failed: The DNS response does not contain an answer to the question: cgbchina.com.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.cgbchina.com.cn
    • Status: Failed: The DNS response does not contain an answer to the question: cgbchina.com.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.cgbchina.com.cn
    • Status: Failed: The DNS response does not contain an answer to the question: cgbchina.com.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.cgbchina.com.cn
    • Status: Failed: The DNS response does not contain an answer to the question: cgbchina.com.cn. 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

ns4.cgbchina.com.cn
  • Serial: 733
  • Refresh: 900
  • Retry: 600
  • Expire: 86400
  • Minimum TTL: 900
ns1.cgbchina.com.cn
  • Serial: 733
  • Refresh: 900
  • Retry: 600
  • Expire: 86400
  • Minimum TTL: 900
ns.cgbchina.com.cn
  • Serial: 733
  • Refresh: 900
  • Retry: 600
  • Expire: 86400
  • Minimum TTL: 900
ns5.cgbchina.com.cn
  • Serial: 733
  • Refresh: 900
  • Retry: 600
  • Expire: 86400
  • Minimum TTL: 900
ns2.cgbchina.com.cn
  • Serial: 733
  • Refresh: 900
  • Retry: 600
  • Expire: 86400
  • Minimum TTL: 900
ns3.cgbchina.com.cn
  • Serial: 733
  • Refresh: 900
  • Retry: 600
  • Expire: 86400
  • Minimum TTL: 900

Serial: 733 - OK

REFRESH: 900 - OK

RETRY: 600 - OK

EXPIRE: 86400 - OK

MINIMUM TTL: 900 - Note: Outside recommended range (1-3 hours)

MX Records

ns4.cgbchina.com.cn
ns1.cgbchina.com.cn
ns.cgbchina.com.cn
ns5.cgbchina.com.cn
ns2.cgbchina.com.cn
ns3.cgbchina.com.cn

MX Record Consistency - OK

MX Record Count - OK

Reverse MX A records (PTR)

  • 181.156.4.221.in-addr.arpa -> edge4.cgbchina.com.cn
  • 56.153.108.113.in-addr.arpa -> edge1.cgbchina.com.cn
  • 216.9.248.58.in-addr.arpa -> edge2.cgbchina.com.cn
  • 4.11.13.218.in-addr.arpa -> edge3.cgbchina.com.cn

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 include:spf.cgbchina.com.cn -all
  • SPF Syntax: Passed
  • Deprecated Elements: Passed
  • IP Addresses:
  • Includes: spf.cgbchina.com.cn
  • DNS Lookups: 3
  • Void Lookups: Passed
  • Escaping Chars: Not Present
  • All Mechanism: -all

DKIM (DomainKeys Identified Mail)

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

DMARC

  • 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
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