HTML Inspector

Chrome extension from x.com/nononsenseintel to search sensitive data in opened tab HTML code:

HTML/JavaScript code comments
File names/paths of images/documents
robots.txt, ads.txt, app-ads.txt
Meta tags/HTML attributes
Sitemap
JSON-LD

https://chromewebstore.google.com/detail/html-inspector/fpaahdcndgfpbbddmgckaifkfljkfkhd