> ## 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).

# How long can a test be?

As long as you want! But tests will always be a multiple of the number of thumbnails/titles. For example, if you upload 3 thumbnails + the original, your test will run for a multiple of 4 days (4, 8, 12, 16, ….) to ensure every thumbnail gets an equal amount of test time. We also offer consecutive tests that will run like (AAAA,BBBB,CCCC)