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DNS Report for sdn.cz

Date Generated: 2024-08-08 20:07:41
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Nameservers

  • ans.seznam.cz
    • IPv4: 77.75.74.80
    • IPv6: 2a02:598:3333::3
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ams.seznam.cz
    • IPv4: 77.75.75.230
    • IPv6: 2a02:598:4444::4
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A

Nameserver Count - OK

Nameserver Queries

  • ans.seznam.cz
    • Status: Responded
    • IP(s): 77.75.77.195, 77.75.79.195
    • TTL: 60 seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)
  • ams.seznam.cz
    • Status: Responded
    • IP(s): 77.75.79.195, 77.75.77.195
    • TTL: 60 seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)

SOA Records

ans.seznam.cz
  • Serial: 1723075200
  • Refresh: 900
  • Retry: 300
  • Expire: 604800
  • Minimum TTL: 300
ams.seznam.cz
  • Serial: 1723075200
  • Refresh: 900
  • Retry: 300
  • Expire: 604800
  • Minimum TTL: 300

Serial: 1723075200 - OK

REFRESH: 900 - OK

RETRY: 300 - OK

EXPIRE: 604800 - OK

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

MX Records

ans.seznam.cz

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

ams.seznam.cz

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

MX Record Consistency - OK

MX Record Count - OK

Reverse MX A records (PTR)

No PTR records data available.

DNSSEC

DNSSEC Inspector
  • Signed: Yes
  • Validation: Failed
  • DNSKEY Records: 2
  • 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.

Error: Error checking DNSSEC: Your connection limit exceeded. Please slow down and try again later.

SPF (Sender Policy Framework)

SPF Record Published: Failed

Multiple SPF Records: Passed

Errors:
  • No SPF record found

DKIM (DomainKeys Identified Mail)

  • DKIM Records Found: No
Warnings:
  • No DKIM records found for common selectors

DMARC

  • Record: None
  • Syntax: Invalid
  • Policy: None
  • RUA (Aggregate Reports):
DMARC External Validation:
  • All external domains in your DMARC record are giving permission to send them DMARC reports.
Errors:
  • DMARC record does not exist
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