DNS diagnostics

DNS lookup

Check a name, record type, and resolver from every configured region, then compare the answers without guessing.

DNS lookup

Run a global DNS lookup

One query fans out across every configured region.

Tools

Pick the next check

Move from the DNS result into the next browser-based check without leaving the workbench.

Learn

Learn while troubleshooting

Short explanations that make each result easier to interpret in the moment.

DNS

What is DNS?

Start with the plain-English version, then follow the signal into caches, records, and regional differences.

Connectivity

When speed and DNS disagree

A fast edge test with failing DNS points to naming or resolver behavior, not raw throughput.

Identity

What your public IP reveals

VPNs, carrier NAT, office gateways, and cloud workspaces can change the address services see.

Articles

Field notes

Practical notes to turn common failures into repeatable checks.

Reading a DNS propagation split without guessing

Separating Wi-Fi pain from edge path latency

Quick checks before blaming a provider outage