DNS Report for t.co

• a.r06.twtrdns.net

  • IPv4: 205.251.192.179
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• a.u06.twtrdns.net

  • IPv4: 204.74.66.101
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• b.r06.twtrdns.net

  • IPv4: 205.251.196.198
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• b.u06.twtrdns.net

  • IPv4: 205.251.196.198
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• c.r06.twtrdns.net

  • IPv4: 205.251.194.151
  • IPv6: No IPv6 found
  • TTL (IPv4): 12 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• c.u06.twtrdns.net

  • IPv4: 205.251.194.151
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• d.r06.twtrdns.net

  • IPv4: 205.251.199.195
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• d.u06.twtrdns.net

  • IPv4: 205.251.199.195
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

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

• a.r06.twtrdns.net

  • Status: Responded
  • IP(s): 72.21.81.130
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• a.u06.twtrdns.net

  • Status: Responded
  • IP(s): 72.21.81.130
  • TTL: 600 seconds
  • Recursive Queries: Allows recursive queries
  • TCP Connectivity: Allows TCP connections

• b.r06.twtrdns.net

  • Status: Responded
  • IP(s): 72.21.81.130
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• b.u06.twtrdns.net

  • Status: Responded
  • IP(s): 72.21.81.130
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• c.r06.twtrdns.net

  • Status: Responded
  • IP(s): 72.21.81.130
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• c.u06.twtrdns.net

  • Status: Responded
  • IP(s): 72.21.81.130
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• d.r06.twtrdns.net

  • Status: Responded
  • IP(s): 72.21.81.130
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• d.u06.twtrdns.net

  • Status: Responded
  • IP(s): 72.21.81.130
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

a.r06.twtrdns.net

• Serial: 2023121101
• Refresh: 3600
• Retry: 600
• Expire: 604800
• Minimum TTL: 600

a.u06.twtrdns.net

• Serial: 2023121104
• Refresh: 3600
• Retry: 600
• Expire: 604800
• Minimum TTL: 600

b.r06.twtrdns.net

• Serial: 2023121101
• Refresh: 3600
• Retry: 600
• Expire: 604800
• Minimum TTL: 600

b.u06.twtrdns.net

• Serial: 2023121101
• Refresh: 3600
• Retry: 600
• Expire: 604800
• Minimum TTL: 600

c.r06.twtrdns.net

• Serial: 2023121101
• Refresh: 3600
• Retry: 600
• Expire: 604800
• Minimum TTL: 600

c.u06.twtrdns.net

• Serial: 2023121101
• Refresh: 3600
• Retry: 600
• Expire: 604800
• Minimum TTL: 600

d.r06.twtrdns.net

• Serial: 2023121101
• Refresh: 3600
• Retry: 600
• Expire: 604800
• Minimum TTL: 600

d.u06.twtrdns.net

• Serial: 2023121101
• Refresh: 3600
• Retry: 600
• Expire: 604800
• Minimum TTL: 600

Serial - Warning: Inconsistent across nameservers

REFRESH: 3600 - OK

RETRY: 600 - OK

EXPIRE: 604800 - OK

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

a.r06.twtrdns.net

Error: The DNS response does not contain an answer to the question: t.co. IN MX

a.u06.twtrdns.net

Error: The DNS response does not contain an answer to the question: t.co. IN MX

b.r06.twtrdns.net

Error: The DNS response does not contain an answer to the question: t.co. IN MX

b.u06.twtrdns.net

Error: The DNS response does not contain an answer to the question: t.co. IN MX

c.r06.twtrdns.net

Error: The DNS response does not contain an answer to the question: t.co. IN MX

c.u06.twtrdns.net

Error: The DNS response does not contain an answer to the question: t.co. IN MX

d.r06.twtrdns.net

Error: The DNS response does not contain an answer to the question: t.co. IN MX

d.u06.twtrdns.net

Error: The DNS response does not contain an answer to the question: t.co. IN MX

MX Record Consistency - OK

MX Record Count - OK

No PTR records data available.

• 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 -all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses:
• Includes:
• DNS Lookups: 1
• 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; adkim=s; aspf=s; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
• Syntax: Valid
• Policy: reject
• RUA (Aggregate Reports): mailto:[email protected]
• RUF (Forensic Reports): mailto:[email protected]
• Failure Options (fo): 1
• DKIM Alignment (adkim): Strict
• SPF Alignment (aspf): Strict

DMARC External Validation:

• Valid external domains: rua.agari.com, ruf.agari.com
• All external domains in your DMARC record are giving permission to send them DMARC reports.