Sitecore Search Enhances Delta Crawling for Improved Index Accuracy
Sitecore has introduced important enhancements to its delta crawling capabilities, further improving search index accuracy and content synchronization. Released on June 3, 2026, these updates help organizations maintain cleaner search results while reducing the need for full-site recrawls.
What Is Delta Crawling?
Delta crawling is designed to identify and process only content changes that occur after an initial crawl. By focusing on incremental updates rather than recrawling an entire website, organizations can improve indexing efficiency, reduce processing time, and keep search experiences up to date.
With the latest improvements, Sitecore has expanded the functionality of delta crawling to make content indexing more reliable and responsive to website changes.
Automatic Removal of Deleted Sitemap URLs
One of the most significant enhancements addresses a common search maintenance challenge. Previously, when URLs were removed from a sitemap, outdated documents could potentially remain in the search index.
The updated delta crawler now automatically detects URLs that have been deleted from a sitemap and removes their corresponding indexed documents. This ensures that obsolete content no longer appears in search results, helping organizations maintain a more accurate and relevant search experience for users.
By keeping the search index aligned with the current state of a website, businesses can reduce content inconsistencies and improve search result quality.