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DNS Report for irs.gov

Date Generated: 2024-08-26 20:37:52
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Nameservers

  • ns0227.secondary.cloudflare.com
    • IPv4: 162.159.33.102
    • IPv6: 2606:4700:59::a29f:2166
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A
  • ns0022.secondary.cloudflare.com
    • IPv4: 162.159.32.23
    • IPv6: 2606:4700:51::a29f:2017
    • TTL (IPv4): 30 seconds
    • TTL (IPv6): 30 seconds
    • Recursive: N/A

Nameserver Count - OK

Nameserver Queries

  • ns0227.secondary.cloudflare.com
    • Status: Responded
    • IP(s): 152.216.11.110, 152.216.7.110
    • TTL: 7200 seconds
    • Recursive Queries: Allows recursive queries
    • TCP Connectivity: Allows TCP connections
  • ns0022.secondary.cloudflare.com
    • Status: Responded
    • IP(s): 152.216.11.110, 152.216.7.110
    • TTL: 7200 seconds
    • Recursive Queries: Allows recursive queries
    • TCP Connectivity: Allows TCP connections

SOA Records

ns0227.secondary.cloudflare.com
  • Serial: 2010092124
  • Refresh: 1800
  • Retry: 900
  • Expire: 2419200
  • Minimum TTL: 900
ns0022.secondary.cloudflare.com
  • Serial: 2010092124
  • Refresh: 1800
  • Retry: 900
  • Expire: 2419200
  • Minimum TTL: 900

Serial: 2010092124 - OK

REFRESH: 1800 - OK

RETRY: 900 - OK

EXPIRE: 2419200 - OK

MINIMUM TTL: 900 - Note: Outside recommended range (1-3 hours)

MX Records

ns0227.secondary.cloudflare.com
ns0022.secondary.cloudflare.com

MX Record Consistency - OK

MX Record Count - OK

Reverse MX A records (PTR)

  • 167.7.216.152.in-addr.arpa -> emge.irs.gov
  • 139.11.216.152.in-addr.arpa -> emgc.irs.gov
  • 169.13.216.152.in-addr.arpa -> emgw.irs.gov

PTR Records - OK

DNSSEC

DNSSEC Inspector
  • Signed: Yes
  • Validation: Successful
  • DNSKEY Records: 3
  • DS Records in parent zone: 0
  • DS at Parent: False

DNSSEC - OK

SPF (Sender Policy Framework)

SPF Record Published: Passed

Multiple SPF Records: Passed

SPF Record 1:
  • Record: v=spf1 ip4:152.216.0.0/20 ip6:2610:30::/32 -all
  • SPF Syntax: Passed
  • Deprecated Elements: Passed
  • IP Addresses: 152.216.0.0/20, 2610:30::/32
  • Includes:
  • DNS Lookups: 1
  • 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: dmarc.cyber.dhs.gov
  • All external domains in your DMARC record are giving permission to send them DMARC reports.
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