mhmdkhamis wrote:really it very important to get topics show fast in google search
Really, do you know of any proof? Because I'm deeply skeptical that sitemaps dramatically improve the speed with which Google or other search engines traverse your site.
In theory sitemaps
should save them time, but Google's Webmaster Tools indicates Googlebot traverses my site from top-to-bottom in less than three days and most threads show up in the index within a 1/2 day. A bigger savings, I believe, would be if phpBB properly implemented the if-modified-since http header. As written today, search engines query with the if-modified-since header set, but always get return code 200 and the full page. If phpBB correctly returned 304 Not Modified, crawlers would demand far less resources and I bet they'd finish much more quickly. There's a phpBB mod that was started to add this capability, but it was abandoned (can't find it at the moment).