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DNS Report for princeton.edu

Date Generated: 2024-08-31 01:01:51
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Nameservers

  • a24-66.akam.net
    • IPv4: 2.16.130.66
    • IPv6: 2600:1480:9800::42
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • a7-65.akam.net
    • IPv4: 23.61.199.65
    • IPv6: 2600:1406:32::41
    • 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
  • ns6.dnsmadeeasy.com
    • IPv4: 208.80.124.13
    • IPv6: 2600:1801:6::1
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns7.dnsmadeeasy.com
    • IPv4: 208.80.126.13
    • IPv6: 2600:1802:7::1
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • a3-67.akam.net
    • IPv4: 96.7.49.67
    • IPv6: 2600:1408:1c::43
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns5.dnsmadeeasy.com
    • IPv4: 208.94.148.13
    • IPv6: 2600:1800:5::1
    • TTL (IPv4): 29 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • a20-65.akam.net
    • IPv4: 95.100.175.65
    • IPv6: 2a02:26f0:67::41
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • a1-158.akam.net
    • IPv4: 193.108.91.158
    • IPv6: 2600:1401:2::9e
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A

Nameserver Count - Note: 9 nameservers (recommended: 2-7)

Nameserver Queries

  • a24-66.akam.net
    • Status: Responded
    • IP(s): 140.180.223.22
    • TTL: 1800 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • a7-65.akam.net
    • Status: Responded
    • IP(s): 140.180.223.22
    • TTL: 1800 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • a6-64.akam.net
    • Status: Responded
    • IP(s): 140.180.223.22
    • TTL: 1800 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • ns6.dnsmadeeasy.com
    • Status: Responded
    • IP(s): 140.180.223.22
    • TTL: 1800 seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • ns7.dnsmadeeasy.com
    • Status: Responded
    • IP(s): 140.180.223.22
    • TTL: 1800 seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • a3-67.akam.net
    • Status: Responded
    • IP(s): 140.180.223.22
    • TTL: 1800 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • ns5.dnsmadeeasy.com
    • Status: Responded
    • IP(s): 140.180.223.22
    • TTL: 1800 seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • a20-65.akam.net
    • Status: Responded
    • IP(s): 140.180.223.22
    • TTL: 1800 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)
  • a1-158.akam.net
    • Status: Responded
    • IP(s): 140.180.223.22
    • TTL: 1800 seconds
    • Recursive Queries: Unclear (Response code: NXDOMAIN)
    • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

SOA Records

a24-66.akam.net
  • Serial: 2019057991
  • Refresh: 1800
  • Retry: 900
  • Expire: 2419200
  • Minimum TTL: 600
a7-65.akam.net
  • Serial: 2019057991
  • Refresh: 1800
  • Retry: 900
  • Expire: 2419200
  • Minimum TTL: 600
a6-64.akam.net
  • Serial: 2019057991
  • Refresh: 1800
  • Retry: 900
  • Expire: 2419200
  • Minimum TTL: 600
ns6.dnsmadeeasy.com
  • Serial: 2019057991
  • Refresh: 1800
  • Retry: 900
  • Expire: 2419200
  • Minimum TTL: 600
ns7.dnsmadeeasy.com
  • Serial: 2019057991
  • Refresh: 1800
  • Retry: 900
  • Expire: 2419200
  • Minimum TTL: 600
a3-67.akam.net
  • Serial: 2019057991
  • Refresh: 1800
  • Retry: 900
  • Expire: 2419200
  • Minimum TTL: 600
ns5.dnsmadeeasy.com
  • Serial: 2019057991
  • Refresh: 1800
  • Retry: 900
  • Expire: 2419200
  • Minimum TTL: 600
a20-65.akam.net
  • Serial: 2019057991
  • Refresh: 1800
  • Retry: 900
  • Expire: 2419200
  • Minimum TTL: 600
a1-158.akam.net
  • Serial: 2019057991
  • Refresh: 1800
  • Retry: 900
  • Expire: 2419200
  • Minimum TTL: 600

Serial: 2019057991 - OK

REFRESH: 1800 - OK

RETRY: 900 - OK

EXPIRE: 2419200 - OK

MINIMUM TTL: 600 - Note: Outside recommended range (1-3 hours)

MX Records

a24-66.akam.net
a7-65.akam.net
a6-64.akam.net
ns6.dnsmadeeasy.com
ns7.dnsmadeeasy.com
a3-67.akam.net
ns5.dnsmadeeasy.com
a20-65.akam.net
a1-158.akam.net

MX Record Consistency - Warning: Inconsistencies found

MX Record Count - Warning: Only one MX record

Reverse MX A records (PTR)

  • 10.11.101.52.in-addr.arpa -> mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 6.42.101.52.in-addr.arpa -> mail-mw2pr02cu00306.inbound.protection.outlook.com
  • 21.9.101.52.in-addr.arpa -> mail-bl2pr04cu00205.inbound.protection.outlook.com
  • 0.40.101.52.in-addr.arpa -> mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 0.41.101.52.in-addr.arpa -> mail-byapr05cu00400.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 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=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhJfLvVG7VQq6Jrugcj4pyf7VQMB/iWJWDGXzpga1Sg9FoMLOHtmoIRaYM6WS77+JdV8UHjpMfpXsdIaQkeo9X10UZo5ffrFNjf+CrzM5pWa+7f6pVpd1pQaIJQO2GltrF5aP8XDrAKu6jRCS0oVLUpeKI0E4ft85XNvj3vmviAbg/HbNfsLF4KbzCITQuYhfe
  • 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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