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DNS Report for novinky.cz

Date Generated: 2024-08-29 17:51:45
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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): 77.75.78.151, 77.75.76.151
    • 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): 77.75.76.151, 77.75.78.151
    • TTL: 60 seconds
    • Recursive Queries: Does not allow recursive queries
    • TCP Connectivity: TCP connection failed (Response code: REFUSED)

SOA Records

ans.seznam.cz
  • Serial: 1724911407
  • Refresh: 900
  • Retry: 300
  • Expire: 604800
  • Minimum TTL: 300
ams.seznam.cz
  • Serial: 1724911407
  • Refresh: 900
  • Retry: 300
  • Expire: 604800
  • Minimum TTL: 300

Serial: 1724911407 - 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
ams.seznam.cz

MX Record Consistency - Warning: Inconsistencies found

MX Record Count - Warning: Only one MX record

Reverse MX A records (PTR)

  • 8.68.101.52.in-addr.arpa -> mail-du0pr03cu00100.inbound.protection.outlook.com
  • 39.68.101.52.in-addr.arpa -> mail-db7pr03cu00607.inbound.protection.outlook.com

PTR Records - OK

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: Passed

Multiple SPF Records: Passed

SPF Record 1:
  • Record: v=spf1 include:spf.szn.cz include:spf.protection.outlook.com -all
  • SPF Syntax: Passed
  • Deprecated Elements: Passed
  • IP Addresses:
  • Includes: spf.szn.cz, spf.protection.outlook.com
  • DNS Lookups: 3
  • Void Lookups: Passed
  • Escaping Chars: Not Present
  • All Mechanism: -all

DKIM (DomainKeys Identified Mail)

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

DMARC

DMARC External Validation:
  • Valid external domains: seznam.cz, mailkit.com
  • All external domains in your DMARC record are giving permission to send them DMARC reports.
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