Acceptance of Terms

By accessing or using ThumbSignal, you agree to be bound by these Terms of Service. If you do not agree, please do not use the service.

Permitted Use

ThumbSignal is provided for evaluating video thumbnails and titles — your own, or those of public videos you are researching. You are responsible for what you submit: by uploading an image or pasting a link, you confirm that you have the right to do so and that your use of the result complies with applicable law. Automated bulk usage, scraping, or reselling of analysis results is prohibited. When you analyse a YouTube video from its link, you also agree to be bound by YouTube's Terms of Service (https://www.youtube.com/t/terms).

No Guarantee of Results

Analysis scores and recommendations are generated by AI and rule-based heuristics. They represent probable observations, not guaranteed outcomes. Actual CTR depends on many factors beyond the scope of this tool.

Rate Limits

Signed out, you can run 3 analyses per UTC day, counted per IP address. Signed in on the free plan, you can run 15 per UTC month, and at most 5 of them in one UTC day, counted per account. Circumventing these limits (e.g. via VPN rotation or proxies) violates these terms.

Intellectual Property

The ThumbSignal name and logo, its scoring model, the selection and weighting of the dimensions it measures, its prompts, its source code, its design, and the selection and arrangement of the content published on this site belong to the site's publisher and are protected by intellectual property law. Using the service transfers no rights to you. The open-source software, fonts and icons the site uses remain the property of their authors and are governed by their own licences, listed in the third-party notices linked from the Legal Notices page.

You may not reverse engineer, decompile, or attempt to derive the scoring methodology; extract content by automated means, including scraping or bulk downloading; or use any part of this service or its output to train, fine-tune, or evaluate a machine learning model. Normal use of the analyzer is unaffected.

Thumbnails and titles you submit remain yours. We claim no ownership of them and process them only to produce your analysis, as described in the Privacy Policy.

Limitation of Liability

ThumbSignal is provided "as is" without warranty of any kind. We are not liable for any indirect, incidental, or consequential damages arising from use of the service.

Contact

For questions about these terms, contact contact@thumbsignal.com.