There are many sitemap modules are available in the market. But the main problem with all of them is they can't handle sitemap having thousands of products. In some cases either they create too big sitemap files or they can't travel through all the products because of server time-out issue.

The main objective of Big Sitemap Generator module is solving this issue. Big Sitemap Generator module can handle technically unlimited products and other links with proper and valid paginations options.

The best thing with this module is sitemaps generated by this module is always up to date. You don't need to regenerate sitemaps again and again or you don't need to set up any cron execution.