====== Blocker ====== ---- ===== Definition ===== A so-called **blocker** on a website blocks search engines, so they can’t access and index it. As a result the website won’t be displayed in the search results. **Example** If the complete website is password protected, search engine crawlers can’t get in. ---- ===== Importance for SEO ===== When possible, lockers should be avoided because the purpose of SEO is to reach top positions in the search results. Of course there can be various reasons why some [[web page|pages]] shouldn’t be indexed. But those pages don’t need to be optimized for search engines.