Tested tool guide
Tested browser tools
Checked August 16, 2026
What Video SERP Preview does, with a checked example
This tool shows the search result your video page is able to produce: the thumbnail, the duration badge, the title, and the source line, plus the VideoObject structured data that feeds them. Paste the URL of the page that hosts the video and the preview renders the card Google could build from it, flagging schema properties that are missing or malformed. The usual surprise: the card is not assembled from your video file or your YouTube channel. It is assembled from schema.org markup in your page's HTML, so a page can rank for its text while its video never earns a carousel slot.
Worked example
A concrete input and expected output from the current implementation.
Input
https://example.com/watch/how-to-sharpen-a-knife, a page whose VideoObject markup declares name "How to Sharpen a Knife", description, thumbnailUrl, uploadDate "2026-05-14", duration "PT4M12S", and contentUrl.
->
Expected output
A Google-style video result card: the thumbnail with a 4:12 badge in the lower corner, the title "How to Sharpen a Knife", a source line with the site name and the May 14, 2026 upload date, and a schema report listing name, description, thumbnailUrl, uploadDate, contentUrl, and duration as present and valid.
PT4M12S is ISO 8601 for 4 minutes and 12 seconds, rendered as the 4:12 badge in the format Google displays. Each element of the card exists only where the matching property exists in the markup, which is why a missing property appears as an empty slot in the preview.