DNS Report for gcore.com

• ns1.gcorelabs.net

  • IPv4: 92.223.100.53, 92.223.100.153
  • IPv6: 2a03:90c0:9990::1053
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns2.gcdn.services

  • IPv4: 92.223.77.153, 92.223.77.53
  • IPv6: 2a03:90c0:9990::2053
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

Nameserver Count - OK

• ns1.gcorelabs.net

  • Status: Responded
  • IP(s): 92.38.145.145
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• ns2.gcdn.services

  • Status: Responded
  • IP(s): 92.38.145.145
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

ns1.gcorelabs.net

• Serial: 1721135847
• Refresh: 5400
• Retry: 3600
• Expire: 1209600
• Minimum TTL: 300

ns2.gcdn.services

• Serial: 1721135847
• Refresh: 5400
• Retry: 3600
• Expire: 1209600
• Minimum TTL: 300

Serial: 1721135847 - OK

REFRESH: 5400 - OK

RETRY: 3600 - OK

EXPIRE: 1209600 - OK

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

ns1.gcorelabs.net

• 10 gcore-com.mail.protection.outlook.com ( 52.101.73.24 )

ns2.gcdn.services

• 10 gcore-com.mail.protection.outlook.com ( 52.101.73.24 )

MX Record Consistency - OK

MX Record Count - Warning: Only one MX record

• 24.73.101.52.in-addr.arpa -> mail-as8pr05cu00300.inbound.protection.outlook.com

PTR Records - OK

• 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 include:spf.gcore.lu -all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses:
• Includes: spf.gcore.lu
• DNS Lookups: 2
• Void Lookups: Passed
• Escaping Chars: Not Present
• All Mechanism: -all

• DKIM Records Found: Yes
• Selectors Found: selector1
• Selector 'selector1':
  Record: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu/p7NBYzP3ipV4pBbFESj6CXDTF/W6PyEeQzLRrrKJTxLmLYGcPeqOoLLh+mYslxd5qT0ew7vJ5Y+tnvDYbVUr5Aeo0nbnkdei6Mmz+dfODfYy20Yic7SN42kmM9quk1lpWcBrmgjy8qwJb+vK914nEmrFm3iUnIVEa2c9D+CWiuknVN9tjpkUoG6FW38IY1N
• Valid Syntax: Yes

• Record: v=DMARC1; p=quarantine
• Syntax: Valid
• Policy: quarantine
• RUA (Aggregate Reports):

DMARC External Validation:

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