Contact & feedback
Found a bug, spotted a scientific error or have an idea? Send a message and it goes straight to the person who maintains this site.
Ways to get in touch
Suggest an improvement
A feature, a clearer explanation or a change that would help you.
Report a scientific or wording error
A result, number or explanation that looks wrong or unclear.
Prefer to write it yourself? Email:
What makes a bug report useful
- The tool you were using and the type of sequence (DNA, RNA or protein).
- What you expected and what happened instead, including any error message exactly as shown.
- Your browser and device. A screenshot helps.
- A short example sequence that shows the problem, if it is not confidential.
What happens to your message
The buttons open your own email app (or Gmail), so your message travels from your account to the operator and this website never sees it, stores it or logs it. Please keep confidential or patient-related sequences out of it. See the privacy policy.
Other places to look first
Many questions are answered in the guides. Results are computed automatically and are not medical advice, see the terms of use.