DNS Report for cbi.ir

• ns2.cbi.ir

  • IPv4: 217.218.130.20
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns3.cbi.ir

  • IPv4: 217.218.130.21
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns4.cbi.ir

  • IPv4: 217.218.78.20
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns1.cbi.ir

  • IPv4: 217.218.78.21
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

Nameserver Count - OK

• ns2.cbi.ir

  • Status: Responded
  • IP(s): 217.218.130.26, 217.218.78.26
  • TTL: 180 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed: The DNS operation timed out.

• ns3.cbi.ir

  • Status: Responded
  • IP(s): 217.218.130.26, 217.218.78.26
  • TTL: 180 seconds
  • Recursive Queries: Unclear (Response code: SERVFAIL)
  • TCP Connectivity: TCP connection failed: The DNS operation timed out.

• ns4.cbi.ir

  • Status: Responded
  • IP(s): 217.218.130.26, 217.218.78.26
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed: The DNS operation timed out.

• ns1.cbi.ir

  • Status: Responded
  • IP(s): 217.218.78.26, 217.218.130.26
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed: The DNS operation timed out.

ns2.cbi.ir

• Serial: 2021091469
• Refresh: 900
• Retry: 600
• Expire: 604800
• Minimum TTL: 180

ns3.cbi.ir

• Serial: 2021091469
• Refresh: 900
• Retry: 600
• Expire: 604800
• Minimum TTL: 180

ns4.cbi.ir

• Serial: 2021091493
• Refresh: 900
• Retry: 600
• Expire: 86400
• Minimum TTL: 600

ns1.cbi.ir

• Serial: 2021091493
• Refresh: 900
• Retry: 600
• Expire: 86400
• Minimum TTL: 600

Serial - Warning: Inconsistent across nameservers

REFRESH: 900 - OK

RETRY: 600 - OK

EXPIRE - Warning: Inconsistent across nameservers

MINIMUM TTL - Warning: Inconsistent across nameservers

ns2.cbi.ir

• 10 mx1.cbi.ir ( 217.218.78.27 )

ns3.cbi.ir

• 10 mx1.cbi.ir ( 217.218.78.24 )

ns4.cbi.ir

• 10 mx1.cbi.ir ( 217.218.78.24 )

ns1.cbi.ir

• 10 mx1.cbi.ir ( 217.218.78.24 )

MX Record Consistency - Warning: Inconsistencies found

MX Record Count - Warning: Only one MX record

• 27.78.218.217.in-addr.arpa -> mx1.cbi.ir
• 24.78.218.217.in-addr.arpa -> mail.cbi.ir

PTR Records - OK

• Signed: Yes
• Validation: Failed
• DNSKEY Records: 4
• DS Records in parent zone: 0
• DS at Parent: None

DNSSEC - Warning: Validation failed

Issue: No DS record found at the parent zone.

Action: Please add the DS record to both your DNS server and domain registrar.

SPF Record Published: Passed

Multiple SPF Records: Passed

SPF Record 1:

• Record: v=spf1 ip4:217.218.78.24 ip4:217.218.78.27 ip4:94.184.143.238 -all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses: 217.218.78.24, 217.218.78.27, 94.184.143.238
• 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;sp=reject; pct=100; adkim=r; aspf=s; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
• Syntax: Valid
• Policy: reject
• Subdomain Policy: reject
• Percent: 100%
• RUA (Aggregate Reports): mailto:[email protected]
• RUF (Forensic Reports): mailto:[email protected]
• Failure Options (fo): 1
• DKIM Alignment (adkim): Relaxed
• SPF Alignment (aspf): Strict

DMARC External Validation:

• All external domains in your DMARC record are giving permission to send them DMARC reports.