Google has dramatically expanded its Structured Content Library (SCL) with 30 new content types, bringing the total to over 100 supported schemas. This major update, announced in Google’s year-end review, introduces critical new schemas for industries including healthcare, education, and e-commerce. The expansion allows websites to better communicate specialized content to search engines, potentially boosting visibility for properly marked-up pages as Google continues prioritizing structured data in its algorithms.
Particularly noteworthy are the new healthcare schemas, which enable medical providers to mark up treatment protocols, medication information, and clinical trial data - a game-changer for medical websites seeking visibility in an increasingly competitive search landscape. For e-commerce sites, new product comparison and inventory status schemas promise to enhance shopping experiences directly in search results. Google also revealed that sites implementing SCL schemas saw an average 27% increase in rich result appearances and 18% higher click-through rates compared to unmarked content, making structured data implementation more valuable than ever for SEO professionals.
Source: https://developers.google.com/search/blog/2025/12/scl-eoy