DNS Report for nixos.org

• dns1.p02.nsone.net

  • IPv4: 198.51.44.2
  • IPv6: 2620:4d:4000:6259:7:2:0:1
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• dns2.p02.nsone.net

  • IPv4: 198.51.45.2
  • IPv6: 2a00:edc0:6259:7:2::2
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• dns3.p02.nsone.net

  • IPv4: 198.51.44.66
  • IPv6: 2620:4d:4000:6259:7:2:0:3
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• dns4.p02.nsone.net

  • IPv4: 198.51.45.66
  • IPv6: 2a00:edc0:6259:7:2::4
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

Nameserver Count - OK

• dns1.p02.nsone.net

  • Status: Responded
  • IP(s): 44.219.53.183, 54.161.234.33
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• dns2.p02.nsone.net

  • Status: Responded
  • IP(s): 35.169.59.174, 44.219.53.183
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• dns3.p02.nsone.net

  • Status: Responded
  • IP(s): 54.84.236.175, 44.219.53.183
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• dns4.p02.nsone.net

  • Status: Responded
  • IP(s): 44.217.161.11, 54.161.234.33
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

dns1.p02.nsone.net

• Serial: 1664495251
• Refresh: 43200
• Retry: 7200
• Expire: 1209600
• Minimum TTL: 3600

dns2.p02.nsone.net

• Serial: 1664495251
• Refresh: 43200
• Retry: 7200
• Expire: 1209600
• Minimum TTL: 3600

dns3.p02.nsone.net

• Serial: 1664495251
• Refresh: 43200
• Retry: 7200
• Expire: 1209600
• Minimum TTL: 3600

dns4.p02.nsone.net

• Serial: 1664495251
• Refresh: 43200
• Retry: 7200
• Expire: 1209600
• Minimum TTL: 3600

Serial: 1664495251 - OK

REFRESH: 43200 - OK

RETRY: 7200 - OK

EXPIRE: 1209600 - OK

MINIMUM TTL: 3600 - OK

dns1.p02.nsone.net

• 10 mx2.improvmx.com ( 13.36.107.63 )

dns2.p02.nsone.net

• 10 mx2.improvmx.com ( 13.36.222.39 )

dns3.p02.nsone.net

• 10 mx2.improvmx.com ( 15.236.61.92 )

dns4.p02.nsone.net

• 10 mx2.improvmx.com ( 15.236.61.92 )

MX Record Consistency - Warning: Inconsistencies found

MX Record Count - Warning: Only one MX record

• 63.107.36.13.in-addr.arpa -> ec2-13-36-107-63.eu-west-3.compute.amazonaws.com
• 39.222.36.13.in-addr.arpa -> ec2-13-36-222-39.eu-west-3.compute.amazonaws.com
• 92.61.236.15.in-addr.arpa -> ec2-15-236-61-92.eu-west-3.compute.amazonaws.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 include:spf.improvmx.com include:_mailcust.gandi.net ~all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses:
• Includes: spf.improvmx.com, _mailcust.gandi.net
• DNS Lookups: 6
• 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