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Explicit DNS queries over plain and encrypted transports

Observe DNS queries issued by a Windows computer

Compare DNS answers across selected resolvers

View DNS answers on a global resolver map

Discover domain-related hosts and DNS infrastructure

Google's DNS, mail and browser troubleshooting toolbox

Inspect browser IP, DNS and WebRTC address exposure

Compare domain answers across public DNS resolvers

Look up mail routing and investigate server DNS

A configurable DNS filter for devices and networks

Query DNS records from lists with resolver and wildcard controls

Script DNS capture, parsing and replay pipelines

A public DNS resolver with malicious-domain blocking

Cloud DNS filtering with content and reporting controls

Check endpoint and job health, then turn failed checks into incidents and status-page updates.

Check websites, endpoints, ports, DNS, and scheduled heartbeats, then send alerts when checks fail.

Probe HTTP, HTTPS, DNS, TCP, ICMP, and gRPC endpoints and expose results for Prometheus to scrape.

Define endpoint health checks and alert conditions in a lightweight self-hosted status dashboard.

Monitor website uptime, performance, certificates, and related site checks from one external service.

Compare resolver and authoritative DNS answers

Retrieve domain records through a Windows graphical interface

Practice workflows and client requests priced by client count

DNS and mail configuration reports with protocol references

Run network and application tests from global or private agents, then use path and routing views to locate where performance breaks.