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DNS Report for carfax.com

Date Generated: 2024-08-11 19:41:21
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Nameservers

  • dns1.p07.nsone.net
    • IPv4: 198.51.44.7
    • IPv6: 2620:4d:4000:6259:7:7:0:1
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • dns2.p07.nsone.net
    • IPv4: 198.51.45.7
    • IPv6: 2a00:edc0:6259:7:7::2
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • dns3.p07.nsone.net
    • IPv4: 198.51.44.71
    • IPv6: 2620:4d:4000:6259:7:7:0:3
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • dns4.p07.nsone.net
    • IPv4: 198.51.45.71
    • IPv6: 2a00:edc0:6259:7:7::4
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns01.carfaxdns.net
    • IPv4: 148.163.250.1
    • IPv6: No IPv6 found
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): N/A seconds
    • Recursive: N/A
  • ns02.carfaxdns.net
    • IPv4: 148.163.250.65
    • IPv6: No IPv6 found
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): N/A seconds
    • Recursive: N/A
  • ns03.carfaxdns.net
    • IPv4: 148.163.250.129
    • IPv6: No IPv6 found
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): N/A seconds
    • Recursive: N/A
  • ns04.carfaxdns.net
    • IPv4: 148.163.250.193
    • IPv6: No IPv6 found
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): N/A seconds
    • Recursive: N/A

Nameserver Count - Note: 8 nameservers (recommended: 2-7)

Nameserver Queries

  • dns1.p07.nsone.net
    • Status: Responded
    • IP(s): 52.85.151.51, 52.85.151.76, 52.85.151.119, 52.85.151.34
    • TTL: 15 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • dns2.p07.nsone.net
    • Status: Responded
    • IP(s): 52.85.151.51, 52.85.151.76, 52.85.151.119, 52.85.151.34
    • TTL: 15 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • dns3.p07.nsone.net
    • Status: Responded
    • IP(s): 52.85.151.51, 52.85.151.76, 52.85.151.119, 52.85.151.34
    • TTL: 15 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • dns4.p07.nsone.net
    • Status: Responded
    • IP(s): 52.85.151.34, 52.85.151.76, 52.85.151.119, 52.85.151.51
    • TTL: 15 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • ns01.carfaxdns.net
    • Status: Responded
    • IP(s): 13.225.63.50, 13.225.63.29, 13.225.63.20, 13.225.63.113
    • TTL: 15 seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • ns02.carfaxdns.net
    • Status: Responded
    • IP(s): 13.225.63.50, 13.225.63.29, 13.225.63.20, 13.225.63.113
    • TTL: 15 seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • ns03.carfaxdns.net
    • Status: Responded
    • IP(s): 13.225.63.50, 13.225.63.29, 13.225.63.20, 13.225.63.113
    • TTL: 15 seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • ns04.carfaxdns.net
    • Status: Responded
    • IP(s): 13.225.63.50, 13.225.63.29, 13.225.63.20, 13.225.63.113
    • TTL: 15 seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)

SOA Records

dns1.p07.nsone.net
  • Serial: 1653665529
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2592000
  • Minimum TTL: 1800
dns2.p07.nsone.net
  • Serial: 1653665529
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2592000
  • Minimum TTL: 1800
dns3.p07.nsone.net
  • Serial: 1653665529
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2592000
  • Minimum TTL: 1800
dns4.p07.nsone.net
  • Serial: 1653665529
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2592000
  • Minimum TTL: 1800
ns01.carfaxdns.net
  • Serial: 1653665529
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2592000
  • Minimum TTL: 1800
ns02.carfaxdns.net
  • Serial: 1653665529
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2592000
  • Minimum TTL: 1800
ns03.carfaxdns.net
  • Serial: 1653665529
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2592000
  • Minimum TTL: 1800
ns04.carfaxdns.net
  • Serial: 1653665529
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2592000
  • Minimum TTL: 1800

Serial: 1653665529 - OK

REFRESH: 10800 - OK

RETRY: 3600 - OK

EXPIRE: 2592000 - OK

MINIMUM TTL: 1800 - Note: Outside recommended range (1-3 hours)

MX Records

dns1.p07.nsone.net
dns2.p07.nsone.net
dns3.p07.nsone.net
dns4.p07.nsone.net
ns01.carfaxdns.net
ns02.carfaxdns.net
ns03.carfaxdns.net
ns04.carfaxdns.net

MX Record Consistency - Warning: Inconsistencies found

MX Record Count - Warning: Only one MX record

Reverse MX A records (PTR)

  • 21.41.101.52.in-addr.arpa -> mail-sj2pr05cu00305.inbound.protection.outlook.com
  • 10.11.101.52.in-addr.arpa -> mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 7.11.101.52.in-addr.arpa -> mail-sa9pr04cu00107.inbound.protection.outlook.com
  • 22.41.101.52.in-addr.arpa -> mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 3.41.101.52.in-addr.arpa -> mail-sj2pr05cu00103.inbound.protection.outlook.com
  • 6.42.101.52.in-addr.arpa -> mail-mw2pr02cu00306.inbound.protection.outlook.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 ip4:40.114.51.96 ip4:64.193.21.0/24 ip4:166.90.97.0/24 ip4:216.117.25.0/24 ip4:216.117.92.0/24 ip4:216.117.105.0/24 ip4:20.242.10.187/32 include:mktomail.com include:service-now.com include:_spf.salesforce.com include:spf.protection.outlook.com -al
  • SPF Syntax: Passed
  • Deprecated Elements: Passed
  • IP Addresses: 40.114.51.96, 64.193.21.0/24, 166.90.97.0/24, 216.117.25.0/24, 216.117.92.0/24, 216.117.105.0/24, 20.242.10.187/32
  • Includes: mktomail.com, service-now.com, _spf.salesforce.com, spf.protection.outlook.com
  • DNS Lookups: 7
  • Void Lookups: Passed
  • Escaping Chars: Not Present
  • All Mechanism: Not Present
Warnings:
  • SPF record doesn't contain an 'all' mechanism

DKIM (DomainKeys Identified Mail)

  • DKIM Records Found: Yes
  • Selectors Found: selector1
  • Selector 'selector1':
    Record: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD1bdVsR5VmXWsyxBnzn4c38sd1UpdzBXQq4ZEMY8zwG4GkYxzcuG46Rhvac7877hxoVb1G+x8v4hLVJQ0josRoIx4sXzFCuP90e6/3zIXL4tI31OGnXthdeIGkT/11t1OS39d9NAYlqWd5+Kjy2pTyuacs6esxR3sXAjSucmQK4wIDAQAB; n=1024,1457929223,1
  • Valid Syntax: Yes

DMARC

DMARC External Validation:
  • Valid external domains: emaildefense.proofpoint.com, ag.dmarcian.com, emaildefense.proofpoint.com
  • All external domains in your DMARC record are giving permission to send them DMARC reports.
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