Blocking All Crawlers Backfired: A robots.txt Lesson and Open Graph Protocol Deep Dive

To protect blog data, the author blocked all crawlers via robots.txt, unintentionally breaking LinkedIn post previews and reducing reach. The LinkedIn Post Inspector revealed that robots.txt prevented the LinkedIn bot from accessing page metadata (Open Graph Protocol) needed for previews. Fixing the robots.txt file resolved the issue. This experience led to learning about the Open Graph Protocol and highlighted the importance of thoroughly testing code changes.