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pdisecurity.com

DNS Records

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Hosting & Network

pdisecurity.com runs on AS21777, with email via Microsoft 365.

Hosting network
AS21777AS21777
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 690 other sites on AS21777. Stable here since we started watching (Jul 18, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to pdisecurity.com.

DNS Records for pdisecurity.com

HostnameTypeTTLPriorityContent
pdisecurity.comSOA86400dns1.validns.com dlan.collegealley.com 2025090603 3600 1800 1209600 86400
pdisecurity.comNS0dns1.validns.com
pdisecurity.comNS0dns2.validns.com
pdisecurity.comTXT0MS=ms12045612
pdisecurity.comTXT0v=spf1 include:spf.protection.outlook.com -all
pdisecurity.comA064.92.125.35
pdisecurity.comMX0pdisecurity-com.mail.protection.outlook.com
www.pdisecurity.comSOA86400dns1.validns.com dlan.collegealley.com 2025090603 3600 1800 1209600 86400
www.pdisecurity.comNS0dns2.validns.com
www.pdisecurity.comNS0dns1.validns.com
www.pdisecurity.comA064.92.125.35
www.pdisecurity.comMX0pdisecurity-com.mail.protection.outlook.com
www.pdisecurity.comTXT0v=spf1 include:spf.protection.outlook.com -all
www.pdisecurity.comTXT0MS=ms12045612
www.pdisecurity.comCNAME0pdisecurity.com

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Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

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Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

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About DNS Records

DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:

  • SOA (Start of Authority) - Contains administrative information about the zone
  • NS (Nameserver) - Specifies authoritative nameservers for the domain
  • A (Address) - Maps a domain to an IPv4 address
  • AAAA - Maps a domain to an IPv6 address
  • CNAME (Canonical Name) - Creates an alias pointing to another domain
  • MX (Mail Exchange) - Specifies mail servers for the domain