You can get rid of most of your code above. WP_User_Query has an include parameter (introduced in WordPress 3.9) include (array) – List of users to be included. So we need to get a random array of author ID’s. I have modified your count_users_with_posts() a bit here to extend it to make it more dynamic … Read more
This isn’t WordPress, it is Firefox’ Link prefetching. You can turn it off. Serve those requests nothing: # Serve Firefox’ prefetch requests an empty page RewriteCond %{HTTP_X_MOZ} ^prefetch$ RewriteRule ^ – [L,R=204]
The short answer is… not by much. WordPress relies on, as scribu (a guy who started by writing very clever and useful plugins, such as Posts 2 Posts, WP CLI, Plugin Dependencies and many many others, ending up in the WP core team for a while) put it: crappy language (PHP, an ancient version to … Read more
Not sure, but currently in my mind the first solution. Do you need the data from WordPress for the authentication. If you include the wp-load.php you have access to WordPress and his functions, maybe to identifier. But the file to include as static path is not really great and solid. define( ‘WP_USE_THEMES’, FALSE ); require( … Read more
@Tal, In terms of performance an unmanaged VPS will be better than a managed one. A Managed VPS will almost always come with CPanel which is great for shared hosting and for hosting companies to easily manage your VPS for you. You can still install any of the Opcode caching tools (APC, eAccelerator, XCache, MemCached) … Read more
WordPress can be a resource hog if you don’t use caching. W3 Total Cache could help you a lot with MySQL, Object and Page Caching. You should also install PHP-APC and use it with the plugin. It can do wonders.
It’s not likely an unused site is using mach resources except for harddrive space. There may be something left in memory but on a typical server thats doubtfull. google bots trigger the site exactly the same as a regular user except it doesnt load unnessasary files like javascript, css or images (except maybe for image … Read more
It’s a very loaded question, I’ll try my best here, keep in mind it’s 4am, so I’m just giving you highlights, not detailed explanations. Linux I’m assuming you’re using a recent version of Ubuntu Change the default SSH port from 22, to something else (/etc/ssh/sshd_config). Either enable AllowGroups or AllowUser in the sshd_config, Install fail2ban … Read more
I don’t think there is any considerably advanced CMS that you can throw high traffic at and expect it to handle it without any configuration effort. Can WP be used for high-traffic site? Of course and it is being used as such by many sites. But it should be WP on decent hosting and well-configured … Read more
Michael Adams, Quantum Bug Creator at Automattic once said: “Revisions are stored in the posts table. I don’t yet know what kind of impact that will have on post queries. We’re going to turn the switch to “on” on WordPress.com sometime soonish and we’ll have a better idea about what kind of damage, if any, … Read more