About

What this is

RunTheTests is a collection of device, network, privacy and printer tools that run locally in your browser. There are no accounts, no uploads and nothing to install.36 of a planned 645 tools are published; the rest are still being built and deliberately are not listed until they work properly.

What we refuse to claim

A browser cannot read your drive's SMART data, your installed RAM, your CPU temperature, your fan speed, your true battery health, or how much ink is in your printer. Those need native tools with hardware access. Any website telling you otherwise is guessing, and people make repair-or-replace decisions on that guess.

So every result on this site carries a "what this cannot tell you" section. It is not boilerplate — it is written per tool, and a tool cannot be published without it. Where a measurement is an approximation, the result says which approximation and why it differs from the real thing.

We will never ask you to run a command

Several tools here interpret output you paste — ping results, diagnostic reports. That output must come from a tool you already chose to run. This site does not distribute, link to, or instruct the execution of any script, command or executable, because "paste this into your terminal" is the exact mechanic of the most common malware delivery method on the web today. If any page here ever asks you to do that, it has been compromised.

If you saw our checker in your logs

Tools that check whether a site is reachable make the request from Cloudflare's network on a visitor's behalf, identifying themselves honestly:

RunTheTests-Checker/1.0 (+https://runthetests.com/about/)

It requests the single URL a visitor typed, once, and reads only what your server publicly returns. It does not crawl, follow links, enumerate paths, brute force, probe for vulnerabilities, or attempt anything your server did not offer. It never requests private, loopback or cloud-metadata addresses, and it re-checks every redirect so a public URL cannot bounce it into an internal one.

If you would rather it stayed away, block that user agent — we will not work around it.

How it is paid for

Some pages carry advertising and affiliate links, disclosed where they appear. When a test fails, free fixes are always listed first and anything paid comes after — a failed test is not an excuse to sell you hardware you do not need.

Pages that handle passwords, keys or encryption carry no advertising and no third-party scripts at all. An ad script runs in the same page as your plaintext, so an ad-supported password tool is a genuine vulnerability rather than a trade-off. Those pages also ship a Content-Security-Policy that blocks outbound connections, so you can verify the claim in the page source instead of trusting us.

Contact

Corrections and bug reports are welcome, particularly if a tool overstates what it measured: contact@brightscalelabs.com.