Why file sizes matter?
If you haven’t run a website speed test lately, do it now. You’ll probably find that your page takes longer to load than you think it should. The reason for that is simple—the more files your site loads, the longer it takes for everything to be downloaded. That doesn’t just mean slower loading times; it also means users may not see your content at all if their internet connection isn’t fast enough to download all of those assets in time.
What is minification of files?
Before anything else, you should understand what minification is. It’s a process through which unnecessary characters are removed from source code. That way, your website loads faster since there are fewer bytes to transfer in terms of raw data.
Also, if you have multiple files to transfer, it’s important that they can be compressed into a single file for faster download speeds. This is where minification comes in handy.
How to optimize your site for speed?
This can be done by minifying, concatenating (combining multiple files into one), gzipping, deferring loading of non-critical resources (i.e. images) and using a CDN to reduce latency.
Optimizing your site for speed is not only important for search engine rankings but also user experience. A faster site will lead to happier users which in turn will lead to more conversions from your site.
First of all, avoid using multiple libraries whenever possible. For example, don’t use jQuery for DOM manipulation and then also use MooTools for other functions. You should also try to minimize external calls by combining several scripts into one file or by loading script files asynchronously (if they aren’t already).
Finally, make sure that any external resources (such as images) are only loaded after your main page has finished loading; otherwise, they will block page rendering until they finish downloading.
It’s easy to forget about filesize when you’re editing code, but learning how to minify your css is an important step in making your web page load faster. While minification alone isn’t going to make a huge difference in your page speed, it can help take off extra milliseconds of load time—which adds up quickly if you have several css files on one page.
Fortunately, most browsers support minified css files natively (meaning they don’t need any special plugins), so there are no worries there. Here are some tips for optimizing your css file sizes. Minimize unnecessary whitespace. If you’ve ever edited a minified css file before, you may have noticed that all unnecessary spaces are removed—making your code difficult to read at first glance.
This space removal isn’t just cosmetic; it actually makes your files smaller! That means less data has to be sent over the wire when someone requests your web page, which translates into faster load times.