How frequently your crawled web pages will be recrawled can be controlled via Re-crawl frequency. When your site is crawled by Expertrec crawler, by default it will recrawl the site after 6 days. But you can fine control periodicity as “daily”, “weekly”, “monthly” and “yearly” etc. But you can always go to your expertrec controlpanel and start “recrawl” manually so as the entire search index will be kept up to date with your web site.