Contact

Contact us

One inbox covers all eleven platforms.

Email

Write to

Put the platform name in the subject line so the message lands with the right context. For account problems, write from the email address on your account.

What to write about

Support: a tool gave a result you do not understand, or something stopped working.
Billing: plan changes, invoices and license keys.
Privacy: questions about your data, or a request to delete your account and its stored results.
Security: you found a weakness in one of our sites. The security.txt file on each platform has the disclosure policy.

Platform support pages

Each platform has its own contact page with a form. Use the form on the platform you use, or write to the address above.