Network Tools

Route DNS queries through Quad9, a free public recursive resolver focused on security and privacy.

LibreQoS Test measures connection quality and latency while a network is under load.

CanYouSeeMe checks whether an internet connection has an open port and verifies port forwarding.

LibreSpeed measures internet speed in a browser and can also be self-hosted as open-source software.

NetBlocks Internet Performance Monitor checks network connectivity and performance issues.

Register free domain names or short subdomains with DNS support through GetFreeDomain.

MyPublicWiFi turns a Windows computer into a wireless hotspot for sharing an internet connection.

Pinging.net monitors internet connectivity and displays network status measurements.

Use No-IP for dynamic and managed DNS, domain registration, and SSL certificate services.

ifconfig.me displays a visitor’s public IP address and provides an API for IP geolocation data.

Manage free, dynamic, and static DNS hosting, subdomains, and web forwarding through FreeDNS.

Measure internet download, upload, ping, and jitter in a browser with OpenSpeedTest, an HTML5 speed test.

Hurricane Electric’s BGP Toolkit provides routing lookup pages, including prefix and network reports.

Create a dynamic DNS subdomain and update it through myaddr.tools HTTP API.

Use Tiarap’s DNS resolver to block ads, trackers, malware, scam, and phishing domains.

localhost.run creates an SSH tunnel that connects web applications on a local computer to the internet.

Connect to UncensoredDNS servers through encrypted DNS over HTTPS or DNS over TLS protocols.

BGP.Tools helps diagnose BGP routing and explore internet routing data through its looking glass.

Check for Cloudflare tests whether a domain uses Cloudflare DNS and checks global locations.

Run DNS, email, network, and website checks with the diagnostic tools from MxToolbox.

Test internet speed and bufferbloat with Waveform’s online network measurement tool.

Use DuckDNS for free dynamic DNS and map a changing IP address to a hostname.

Manage domain records with deSEC, a free DNS hosting service for publishing DNS entries.

This service runs ping, MTR, DNS, TCP port, and BGP diagnostics from multiple locations.