Error report

Think a result is wrong?

If you think one of our tools calculated or interpreted a result incorrectly, let us know. We review reports and fix the errors we confirm.

Tool

Page where you saw the result

Analysed address or app (optional)

The result you think is wrong

Why is it wrong? What should it be?

Screenshot (optional)

Choose image or drag it here / paste it (Ctrl+V)

You can attach a screenshot of the wrong result; it’s optional. PNG, JPG, WebP or GIF, up to 5 MB. The image is only sent to us and isn’t stored on our server.

We’ll let you know the outcome at this address.

For a good report

Say which result is wrong and what you think the correct value should be.
If possible, attach a screenshot of the result.
If the page looks different in your browser, add your browser and device (e.g. Android Chrome).

What happens to your report?

Reports are sent straight to us; the form content and image aren’t stored on our server. We rerun the calculation with the same address and check it against its source. For other topics, you can use the contact form.