DNS Report for kyobobook.co.kr

• ns1.kyobobook.co.kr

  • IPv4: 103.182.126.25
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns2.kyobobook.co.kr

  • IPv4: 103.182.126.26
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

Nameserver Count - OK

• ns1.kyobobook.co.kr

  • Status: Responded
  • IP(s): 103.182.126.20
  • TTL: 300 seconds
  • Recursive Queries: Error checking recursive queries: The DNS operation timed out.
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns2.kyobobook.co.kr

  • Status: Responded
  • IP(s): 103.182.126.20
  • TTL: 300 seconds
  • Recursive Queries: Error checking recursive queries: The DNS operation timed out.
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ns1.kyobobook.co.kr

• Serial: 2024081202
• Refresh: 720
• Retry: 360
• Expire: 3600000
• Minimum TTL: 300

ns2.kyobobook.co.kr

• Serial: 2024081202
• Refresh: 720
• Retry: 360
• Expire: 3600000
• Minimum TTL: 300

Serial: 2024081202 - OK

REFRESH: 720 - OK

RETRY: 360 - OK

EXPIRE: 3600000 - OK

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

ns1.kyobobook.co.kr

• 5 clean.kyobobook.co.kr ( 103.182.126.22 )
• 10 mail.kyobobook.co.kr ( 103.182.126.23 )

ns2.kyobobook.co.kr

• 5 clean.kyobobook.co.kr ( 103.182.126.22 )
• 10 mail.kyobobook.co.kr ( 103.182.126.23 )

MX Record Consistency - OK

MX Record Count - OK

• 22.126.182.103.in-addr.arpa -> clean.kyobobook.co.kr
• 23.126.182.103.in-addr.arpa -> mail.kyobobook.co.kr

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 ip4:103.182.126.150 ip4:103.182.126.23 ip4:103.182.126.22 ip4:211.189.36.155 ip4:103.182.126.214 ip4:1.232.127.232
• SPF Syntax: Failed
• Deprecated Elements: Passed
• IP Addresses: 103.182.126.150, 103.182.126.23, 103.182.126.22, 211.189.36.155, 103.182.126.214, 1.232.127.232
• Includes:
• DNS Lookups: 0
• Void Lookups: Passed
• Escaping Chars: Not Present
• All Mechanism: Not Present

Warnings:

• SPF record doesn't contain an 'all' mechanism

Errors:

• SPF record syntax is invalid

• DKIM Records Found: No

Warnings:

• No DKIM records found for common selectors

• Record: v=DMARC1;p=none;rua=mailto:[email protected];
• Syntax: Valid
• Policy: none
• RUA (Aggregate Reports): mailto:[email protected]

DMARC External Validation:

• All external domains in your DMARC record are giving permission to send them DMARC reports.