Looking at your query, I see lots of stuff like wp_posts.post_content LIKE ‘%اهمية%’. You should know that column LIKE ‘%matchstring%’ is a notorious MySQL performance-killer. If you can change your operations to use column LIKE ‘matchstring%’ (with no leading %) this will get better. Or, maybe it makes sense for you to adopt a search … Read more
What happens on the user’s side is off topic as @bungeshea said already. Once the user has loaded the file it will stay in the browser cache for a while, so you don’t have to worry about double loaded files anyway. But let’s look at the server side and how WordPress handles this. If you … Read more
wp_get_attachment_image_src will always return a URL to a file if the image exists in some size. If the size you ask for doesn’t exist then you get the URL for the full size image as uploaded. (This isn’t the “large” image size.) So, for a valid image ID, your conditional if(wp_get_attachment_image_src($id, array($preferred_size, $preferred_size))) will always … Read more
This seems like far too much to me granted a lot of those files seem very necessary, what I tend to do it open each of those scripts and compile them into a single file and then unhook each of them as needed. A modern theme framework like sage helps a lot in doing this … Read more
Don’t use query_posts(). Don’t modify the main loop query from within the template. You may be able to get a single query to provide what you need (e.g. by filtering pre_get_posts and groupby), but more than likely, you will need to iterate 12 custom loops using WP_Query(). Perhaps something like this: // Get all the … Read more
If you look at the source for the home_url() function, you’ll note a small series of function calls eventually invoking get_option(). As explained in this WPSE Answer, the get_option() function is cached, meaning that if an option’s value is already in memory, get_option() returns that value instead of querying the database again. As a result, … Read more
There’s quite a lot of information on here about switching to InnoDB https://wordpress.stackexchange.com/search?q=innodb There are a number of things to think about: InnoDB is helpful with you’re faced with contention – ie when you have tables that are being written to as well as being read InnoDB does not support FULLTEXT indexes so plugins that … Read more
I was in a similar situation recently and started using W3 Total Cache too. I’m not sure what settings you have at the moment, but it’s worth experimenting a bit if you can to see that you’re really using W3 Total Cache to the max For example, I originally only had Page Cache and Browser … Read more
Your code shows an inline script, which adds a new script tag to the DOM, which probably slows down your website’s loading time. This is not an inline script tag then. Try adding this line s.defer = true; after s.async = true; to add the defer attribute to your script tag. It should then look … Read more
Most efficient way to list all categories and display a post for each of them?