Contact Testnook

The quickest way to reach us is by email:

Email: contact@testnook.com

We usually reply within two working days.

Reporting a problem with a test

To help us reproduce the issue, please include:

• the page address (URL) of the test,
• your device and operating system, for example "Windows 11 laptop" or "iPhone 15, iOS 19",
• your browser and its version,
• the hardware you were testing (brand and model), and
• what you expected to happen and what happened instead.

Suggesting a test

Tell us what you wanted to check and which device you have. Many of our tools started as reader suggestions.

Embedding and partnerships

Every tool has free embed code at the bottom of its page. For anything else, including corrections, press or advertising, email us at the address above.

Testnook is run by Ali Ahmad. Read more on the About page.