> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://support.thumbnailtest.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# What’s the minimum test length?

Each thumbnail/title must be tested for at least 1 day or 2 hours. The number of thumbnails/titles you upload, plus 1 for the original, determines the minimum test length.