Highlight H1 and nofollow, sponsored & ugc is a Chrome add-on developed by Lino Uruñuela. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools.

This add-on allows users to easily identify and highlight H1 and H2 tags on web pages. It uses a red dotted border to highlight H1 tags and a green dotted border to highlight H2 tags. This can be particularly useful for web developers and designers who need to quickly identify the heading structure of a webpage.

Additionally, the add-on also highlights links with the rel attributes of nofollow, sponsored, and ugc. This feature helps users easily identify links that have these attributes applied, which can be important for SEO purposes.

Overall, Highlight H1 and nofollow, sponsored & ugc is a handy tool for Chrome users who work with web development or SEO and need a quick way to identify heading tags and links with specific attributes.