What we publish
YTThumbFetcher publishes thumbnail file references, visual design guides, fictional case studies, and explanations of the site's data and AI boundaries. The goal is to help a creator inspect an image and make a specific edit. The site does not publish guaranteed growth formulas or invented platform metrics.
How technical claims are checked
Claims about YouTube or Cloudflare are checked against current documentation or repeatable public behavior. A statement about what this site stores, caches, or sends is checked against the deployed application. When observed behavior and documentation differ, the guide describes the narrower result instead of assuming that every video behaves the same way.
How design advice is checked
Design advice must point to something visible: composition, type size, local contrast, edge separation, crop, or information density. Articles use reduction and grayscale checks where they are relevant. A recommendation that depends on topic, audience, or channel history is presented as a choice, not a universal rule.
Illustrations and third-party thumbnails
Editorial examples use original fictional assets created for this site unless a source and permission are stated beside the image. Pasting a public URL into the private tool does not grant YTThumbFetcher permission to republish that thumbnail in an article.
The homepage can show a regional public video as a live product example. That image is labeled with its video title, channel, YouTube source, original-video link, and ownership notice. It is not presented as editorial artwork.
AI use
The on-demand diagnosis is model-generated and labeled as an independent AI review. Editorial pages may use AI during drafting or image production, but publication still requires a check for factual claims, unsupported certainty, copied material, and consistency with the methodology. Generated illustrations are described as original fictional examples.
Corrections and update dates
Corrections are checked against the relevant source or reproduction steps. A material change receives a new update date. Send the page address and the specific problem through the contact page; the site does not need private analytics or credentials to review an editorial correction.
Commercial independence
Advertising does not determine report levels, recommendations, article topics, or tool results. An ad must not be styled or placed so that it can be mistaken for a download or analysis control.