DNS Report for clinicaltrials.gov

• ns-cloud-d2.googledomains.com

  • IPv4: 216.239.34.109
  • IPv6: 2001:4860:4802:34::6d
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns-cloud-d4.googledomains.com

  • IPv4: 216.239.38.109
  • IPv6: 2001:4860:4802:38::6d
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns-cloud-d1.googledomains.com

  • IPv4: 216.239.32.109
  • IPv6: 2001:4860:4802:32::6d
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns-cloud-d3.googledomains.com

  • IPv4: 216.239.36.109
  • IPv6: 2001:4860:4802:36::6d
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

Nameserver Count - OK

• ns-cloud-d2.googledomains.com

  • Status: Responded
  • IP(s): 34.107.134.59
  • TTL: 86400 seconds
  • Recursive Queries: Allows recursive queries
  • TCP Connectivity: Allows TCP connections

• ns-cloud-d4.googledomains.com

  • Status: Responded
  • IP(s): 34.107.134.59
  • TTL: 86400 seconds
  • Recursive Queries: Allows recursive queries
  • TCP Connectivity: Allows TCP connections

• ns-cloud-d1.googledomains.com

  • Status: Responded
  • IP(s): 34.107.134.59
  • TTL: 86400 seconds
  • Recursive Queries: Allows recursive queries
  • TCP Connectivity: Allows TCP connections

• ns-cloud-d3.googledomains.com

  • Status: Responded
  • IP(s): 34.107.134.59
  • TTL: 86400 seconds
  • Recursive Queries: Allows recursive queries
  • TCP Connectivity: Allows TCP connections

ns-cloud-d2.googledomains.com

• Serial: 1
• Refresh: 21600
• Retry: 3600
• Expire: 259200
• Minimum TTL: 300

ns-cloud-d4.googledomains.com

• Serial: 1
• Refresh: 21600
• Retry: 3600
• Expire: 259200
• Minimum TTL: 300

ns-cloud-d1.googledomains.com

• Serial: 1
• Refresh: 21600
• Retry: 3600
• Expire: 259200
• Minimum TTL: 300

ns-cloud-d3.googledomains.com

• Serial: 1
• Refresh: 21600
• Retry: 3600
• Expire: 259200
• Minimum TTL: 300

Serial: 1 - OK

REFRESH: 21600 - OK

RETRY: 3600 - OK

EXPIRE: 259200 - OK

MINIMUM TTL: 300 - Note: Outside recommended range (1-3 hours)

ns-cloud-d2.googledomains.com

• 10 nihcesxway3.hub.nih.gov ( 128.231.90.125 )
• 10 nihcesxway4.hub.nih.gov ( 128.231.90.119 )
• 10 nihcesxway5.hub.nih.gov ( 128.231.90.120 )

ns-cloud-d4.googledomains.com

• 10 nihcesxway3.hub.nih.gov ( 128.231.90.125 )
• 10 nihcesxway4.hub.nih.gov ( 128.231.90.119 )
• 10 nihcesxway5.hub.nih.gov ( 128.231.90.120 )

ns-cloud-d1.googledomains.com

• 10 nihcesxway3.hub.nih.gov ( 128.231.90.125 )
• 10 nihcesxway4.hub.nih.gov ( 128.231.90.119 )
• 10 nihcesxway5.hub.nih.gov ( 128.231.90.120 )

ns-cloud-d3.googledomains.com

• 10 nihcesxway3.hub.nih.gov ( 128.231.90.125 )
• 10 nihcesxway4.hub.nih.gov ( 128.231.90.119 )
• 10 nihcesxway5.hub.nih.gov ( 128.231.90.120 )

MX Record Consistency - OK

MX Record Count - OK

• 125.90.231.128.in-addr.arpa -> nihcesxway3.hub.nih.gov
• 119.90.231.128.in-addr.arpa -> nihcesxway4.hub.nih.gov
• 120.90.231.128.in-addr.arpa -> nihcesxway5.hub.nih.gov

PTR Records - OK

• Signed: Yes
• Validation: Successful
• DNSKEY Records: 2
• DS Records in parent zone: 0
• DS at Parent: False

DNSSEC - OK

SPF Record Published: Passed

Multiple SPF Records: Passed

SPF Record 1:

• Record: v=spf1 include:nih.gov ~all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses:
• Includes: nih.gov
• DNS Lookups: 2
• Void Lookups: Passed
• Escaping Chars: Not Present
• All Mechanism: ~all

• DKIM Records Found: No

Warnings:

• No DKIM records found for common selectors

• Record: v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
• Syntax: Valid
• Policy: reject
• RUA (Aggregate Reports): mailto:[email protected], mailto:[email protected]
• RUF (Forensic Reports): mailto:[email protected]
• Failure Options (fo): 1

DMARC External Validation:

• Valid external domains: ag.us.dmarcian.com, dmarc.cyber.dhs.gov, fr.us.dmarcian.com
• All external domains in your DMARC record are giving permission to send them DMARC reports.