DNS Report for about.co.kr

• ns-1207.awsdns-22.org

  • IPv4: 205.251.196.183
  • IPv6: 2600:9000:5304:b700::1
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns-1834.awsdns-37.co.uk

  • IPv4: 205.251.199.42
  • IPv6: 2600:9000:5307:2a00::1
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns-367.awsdns-45.com

  • IPv4: 205.251.193.111
  • IPv6: 2600:9000:5301:6f00::1
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns-813.awsdns-37.net

  • IPv4: 205.251.195.45
  • IPv6: 2600:9000:5303:2d00::1
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

Nameserver Count - OK

• ns-1207.awsdns-22.org

  • Status: Responded
  • IP(s): 183.111.131.197
  • TTL: 1800 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns-1834.awsdns-37.co.uk

  • Status: Responded
  • IP(s): 183.111.131.197
  • TTL: 1800 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• ns-367.awsdns-45.com

  • Status: Responded
  • IP(s): 183.111.131.197
  • TTL: 1800 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns-813.awsdns-37.net

  • Status: Responded
  • IP(s): 183.111.131.197
  • TTL: 1800 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ns-1207.awsdns-22.org

• Serial: 1
• Refresh: 7200
• Retry: 900
• Expire: 1209600
• Minimum TTL: 60

ns-1834.awsdns-37.co.uk

• Serial: 1
• Refresh: 7200
• Retry: 900
• Expire: 1209600
• Minimum TTL: 60

ns-367.awsdns-45.com

• Serial: 1
• Refresh: 7200
• Retry: 900
• Expire: 1209600
• Minimum TTL: 60

ns-813.awsdns-37.net

• Serial: 1
• Refresh: 7200
• Retry: 900
• Expire: 1209600
• Minimum TTL: 60

Serial: 1 - OK

REFRESH: 7200 - OK

RETRY: 900 - OK

EXPIRE: 1209600 - OK

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

ns-1207.awsdns-22.org

• 10 sniper01.about.co.kr ( 121.138.165.88 )
• 10 sniper02.about.co.kr ( 121.138.165.89 )

ns-1834.awsdns-37.co.uk

• 10 sniper01.about.co.kr ( 121.138.165.88 )
• 10 sniper02.about.co.kr ( 121.138.165.89 )

ns-367.awsdns-45.com

• 10 sniper01.about.co.kr ( 121.138.165.88 )
• 10 sniper02.about.co.kr ( 121.138.165.89 )

ns-813.awsdns-37.net

• 10 sniper01.about.co.kr ( 121.138.165.88 )
• 10 sniper02.about.co.kr ( 121.138.165.89 )

MX Record Consistency - OK

MX Record Count - OK

• 89.165.138.121.in-addr.arpa -> No PTR record found: The DNS query name does not exist: 89.165.138.121.in-addr.arpa.
• 88.165.138.121.in-addr.arpa -> No PTR record found: The DNS query name does not exist: 88.165.138.121.in-addr.arpa.

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 ip4:121.138.165.24 ip4:121.138.165.25 ip4:121.138.165.26 ip4:124.111.91.4 ip4:168.126.139.33 ip4:121.138.165.88 ip4:121.138.165.89 ~all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses: 121.138.165.24, 121.138.165.25, 121.138.165.26, 124.111.91.4, 168.126.139.33, 121.138.165.88, 121.138.165.89
• Includes:
• DNS Lookups: 1
• Void Lookups: Passed
• Escaping Chars: Not Present
• All Mechanism: ~all

• 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