github.com
Speed Test is an open source project with code, documentation, and setup resources for network diagnostics.
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speed.cloudflare.com
Cloudflare speed test for checking download, upload, latency, jitter, and network quality.
fast.com
Fast.com is a simple internet speed testing tool. It estimates a user's download speed in seconds, with support for dozens of languages. The tool also offers optional metrics including upload speed, loaded and unloaded latency, and configurable parallel connection and test duration settings for more detailed network performance checks.
bufferbloat.libreqos.com
LibreQoS Test helps test internet speed, latency, and connection quality from a browser or command line.
openspeedtest.com
OpenSpeedTest is a browser-based HTML5 internet speed test that measures download, upload, ping, and jitter without Flash or Java. It works on phones, TVs, consoles, and computers. A free and open-source self-hosted server can be deployed, and a speed test widget can be embedded on websites or apps.
github.com
cloudflare speed cli is a command-line tool for running internet speed tests and checking connection performance.
tools.pingdom.com
Pingdom's free Website Speed Test analyzes a webpage's load time and identifies bottlenecks. A full page test breaks requests into stages such as DNS lookup, SSL handshake, connect, send, wait, receive and blocked, and flags redirects and 4xx or 5xx responses. Pingdom also offers uptime and performance monitoring from more than 70 global polling locations.
ping.pe
ping.pe helps test latency, packet loss, routing paths, and network reachability.
gtmetrix.com
GTmetrix checks page speed, performance, technical issues, and web quality signals.
speedvitals.com
SpeedVitals is a website speed testing tool that runs page speed tests from 30 or more locations and devices and measures Core Web Vitals. It also provides a TTFB test, batch analysis of up to 50 tests, performance monitoring with email and Slack alerts, and reports including waterfall charts and resource summaries. The site lists free tools such as an image compressor and an SEO analyzer.
globalping.io
Globalping is a platform for running network commands such as ping, traceroute and DNS resolve on probes distributed worldwide. It is used to monitor, debug and benchmark internet infrastructure. It offers a REST API, CLI and integrations.
packetsender.com
Packet Sender is a free, open source utility for sending and receiving network packets, with support for TCP, UDP, SSL and DTLS. It includes a built-in HTTP client for GET/POST requests, panel generation, a command line interface for scripting, and runs on Windows, Mac and Linux.
pinging.net
Pinging.net is a web tool for testing and monitoring an internet connection. It reports status for HTTP, DNS, WebRTC and the browser, and shows web ping statistics including last, minimum, maximum and average values and packet loss, with updates every 30 seconds.
github.com
PingTracer is an open source project with code, documentation, and setup resources for network diagnostics.
github.com
wireshark profiles provides Wireshark profiles or network analysis resources for packet inspection workflows.
github.com
Speedtest is an open source project with code, documentation, and setup resources for network diagnostics.
wireshark.org
Wireshark is a free and open-source network protocol analyzer that lets users capture and interactively browse the traffic running on a computer network, providing deep inspection of hundreds of protocols. It runs on most computing platforms including Windows, macOS, Linux, and UNIX, and can also be built from source on other platforms.
librespeed.org
LibreSpeed is a free and open source speedtest that runs in the browser or can be self-hosted on a PHP, Golang, Rust or Node server. It is licensed under LGPL and measures download, upload, ping, and jitter without Flash, Java, or Websockets.
ooni.org
OONI, the Open Observatory of Network Interference, is a global community measuring internet censorship. OONI Probe tests the blocking of websites and apps and measures network speed and performance, while OONI Explorer displays censorship data collected from over 200 countries since 2012.