DNS Record Lookup

Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain

Hosting & Network

netdiag.online runs on Cloudflare, with DNS by Cloudflare and email via Google Workspace.

Hosting network
CloudflareAS13335Cloudflare
Managed DNS
Cloudflare
Email
Google Workspace
IPv6 (AAAA)
Enabled
CAA pinning
None

Sits alongside 6,237,271 other sites on Cloudflare. Stable here since we started watching (Nov 5, 2026).

The apex and www are the same hosting — the apex via A records.

DNS Records for netdiag.online

HostnameTypeTTLPriorityContent
netdiag.onlineTXT0google-site-verification=V1-zMp1MsuAC4MB7IztEZXKLwN64_dRoPYufsWZkqDI
netdiag.onlineTXT0google-site-verification=HI9VD0gcuO0cjmMdPOnnDZ2Mg98ImxvCCp7ToBCOLs4
netdiag.onlineTXT0v=spf1 include:_spf.google.com ~all
netdiag.onlineMX01smtp.google.com
netdiag.onlineSOA1800casey.ns.cloudflare.com dns.cloudflare.com 2417935020 10000 2400 604800 1800
netdiag.onlineA0104.21.61.157
netdiag.onlineA0172.67.211.139
netdiag.onlineNS0vivienne.ns.cloudflare.com
netdiag.onlineNS0casey.ns.cloudflare.com
netdiag.onlineAAAA02606:4700:3032::ac43:d38b
netdiag.onlineAAAA02606:4700:3034::6815:3d9d
www.netdiag.onlineAAAA02606:4700:3032::ac43:d38b
www.netdiag.onlineAAAA02606:4700:3034::6815:3d9d
www.netdiag.onlineA0172.67.211.139
www.netdiag.onlineA0104.21.61.157

Get alerted the moment netdiag.online's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch netdiag.online continuously, notifying you the moment anything moves across all three signals:

DNS monitor showing the hosting provider, current A, MX, NS, and TXT records, and a history of MX and TXT changes

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, CNAME, TXT 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

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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What's up with DNS →

Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.

Ask about netdiag.online

Beta

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

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