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DNS Report for costco.com

Date Generated: 2024-08-06 11:13:41
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Nameservers

  • a1-116.akam.net
    • IPv4: 193.108.91.116
    • IPv6: 2600:1401:2::74
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • a5-64.akam.net
    • IPv4: 95.100.168.64
    • IPv6: 2600:1480:b000::40
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • a9-66.akam.net
    • IPv4: 184.85.248.66
    • IPv6: 2a02:26f0:117::42
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • a14-67.akam.net
    • IPv4: 184.26.161.67
    • IPv6: 2600:1480:1800::43
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • a6-64.akam.net
    • IPv4: 23.211.133.64
    • IPv6: 2600:1401:1::40
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • a28-66.akam.net
    • IPv4: 95.100.173.66
    • IPv6: 2600:1480:d800::42
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A

Nameserver Count - OK

Nameserver Queries

  • a1-116.akam.net
    • Status: Responded
    • IP(s): 23.39.185.229
    • TTL: 20 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • a5-64.akam.net
    • Status: Responded
    • IP(s): 23.39.185.229
    • TTL: 20 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • a9-66.akam.net
    • Status: Responded
    • IP(s): 23.39.185.229
    • TTL: 20 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • a14-67.akam.net
    • Status: Responded
    • IP(s): 23.39.185.229
    • TTL: 20 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • a6-64.akam.net
    • Status: Responded
    • IP(s): 23.39.185.229
    • TTL: 20 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • a28-66.akam.net
    • Status: Responded
    • IP(s): 23.39.185.229
    • TTL: 20 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

SOA Records

a1-116.akam.net
  • Serial: 3046
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2332800
  • Minimum TTL: 900
a5-64.akam.net
  • Serial: 3046
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2332800
  • Minimum TTL: 900
a9-66.akam.net
  • Serial: 3046
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2332800
  • Minimum TTL: 900
a14-67.akam.net
  • Serial: 3046
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2332800
  • Minimum TTL: 900
a6-64.akam.net
  • Serial: 3046
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2332800
  • Minimum TTL: 900
a28-66.akam.net
  • Serial: 3046
  • Refresh: 10800
  • Retry: 3600
  • Expire: 2332800
  • Minimum TTL: 900

Serial: 3046 - OK

REFRESH: 10800 - OK

RETRY: 3600 - OK

EXPIRE: 2332800 - OK

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

MX Records

a1-116.akam.net
a5-64.akam.net
a9-66.akam.net
a14-67.akam.net
a6-64.akam.net
a28-66.akam.net

MX Record Consistency - OK

MX Record Count - OK

Reverse MX A records (PTR)

  • 49.158.163.148.in-addr.arpa -> mx0b-001f9d01.pphosted.com
  • 53.156.163.148.in-addr.arpa -> mx0a-001f9d01.pphosted.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 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
  • SPF Syntax: Failed
  • Deprecated Elements: Passed
  • IP Addresses:
  • Includes: %{ir}.%{v}.%{d}.spf.has.pphosted.com
  • DNS Lookups: 3
  • Void Lookups: Passed
  • Escaping Chars: Not Present
  • All Mechanism: -all
Errors:
  • SPF record syntax is invalid

DKIM (DomainKeys Identified Mail)

  • DKIM Records Found: Yes
  • Selectors Found: google
  • Selector 'google':
    Record: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCVmxsYtFOkx0zlCx0nWUXuBl0YB2DtOvPAsFsnrHTzkylmph3P+iJrKa8vA0C0QdVQRMdQfy2Z/V+ooF7gwc+B8Tplx7xRT2+7TfofQexKp3w3Ke3VWxP5bZylwBQTuPirP8aEICNQxndKeOGs0tU0hw99o4EClhUpSSeHVCBToQIDAQAB
  • Valid Syntax: Yes

DMARC

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