It is time to discover how to make website load faster. In order to build a successful business, you must monitor website performance and be ready to work on web site speed optimization. We have prepared a comprehensive list of effective ways to help you with your website speed optimization strategy.
CSS and JS
Improving web performance can be achieved by minifying and compressing all CSS and JS files without fail. This can be done both using online services and using Gulp, Grunt, or Webpack. If you are using the latter, then it will be helpful to use PostCss or smart plugins like CSS Nano, which will not only work on the size of your files, but also perform additional optimizations. Use critical CSS for your web site speed optimization. As for JS files, you should add the async property to the script tag, in everything except the jquery library. To make website faster, try not to use massive libraries unnecessarily. It is also advisable to upload the libraries with one minified file (also using the builders mentioned above). Improving website performance with these actions will give you a better score and faster page rendering.
Right now, you are probably wondering how to speed up web page loading time with PHP optimization. PHP optimization requires the use of a cache. The bottom line is that the files that the site uses are not downloaded from the server, but are already stored on the computer. True, this method is suitable only for those who have an Apache server, if suddenly there are problems with this and PHP web site speed optimization does not suit you, you should look towards service workers. Service workers is a modern PHP alternative for website speed optimization. This tool is a script that the browser runs in the background separately from the page and does not require user interaction.
Cleaning your cache is one of the most important steps in improving website performance. The cleaner the browser cache, the easier it is for a website to load. To ensure high speed of loading pages, and downloading applications and files with minimal “504 gateway time out” errors, you must clean the cache of the site as often as possible.
To improve website performance, choosing hosting carefully:
- Hosting type: for effective site speed optimization it is important to strike a balance between the cost of hosting and the advisability of overpaying for it. Small online stores and media outlets are better off choosing VPS/VDS. In this case, you don’t have to share the capacity with a dozen other sites. For large websites, it is worth choosing only dedicated servers with a predetermined capacity that will withstand the load.
- Hosting speed: if you need fast hosting, choose it on servers with SSD drives. Such hosting is a little more expensive than usual, but their speed is worth the money.
If there are a lot of heavy elements on the page and you are worried about how to make pages load faster, it makes sense to load them just before the moment they are used. Consider watching an online video: we do not wait for the entire video to load every time, we wait for a small fragment to load and start the video. This should be done for images, videos, iframes, and sometimes for text on your website.
External Scripts & Plugins
Very often, developers implement an entire plugin to have a single tooltip on the site, using one of the hundreds of library features. But such a strategy won’t help make website faster. If this plugin uses other libraries, then a huge pile of unused code appears on the site. Plugins provide various accessibility features for a site, and in most cases they are unavoidable. But using a large number of plugins can cause security problems as well as decrease the website page speed, which can negatively impact traffic.
So how to get rid of all unnecessary external scripts and how to improve site speed? Avoid plugins that add a lot of scripts, database queries, and styling. It is worth analyzing the site code and reducing the number of rarely used plugins. This will allow you to load pages faster.
When adding a Share button, we connect external scripts, Facebook, Instagram, etc. These are additional requests to different servers. We have already said that you need to at least implement lazy loading to improve website speed. However, there are situations when this is not possible. For example, many people use external scripts that add new fonts to the site (for example, Google). Often scripts are embedded in the HTML code which slow down performance. For dynamic web site speed optimization, use no more than 6 scripts.
Each website inevitably accumulates various kinds of “garbage” that make page speed optimization even harder. This happens, for instance, when the design and functionality are changed. Your task is to find and remove code fragments that do not perform any tasks. This will allow you to significantly speed up website. Consider removing the following elements:
- pieces of code from third-party resources, services, add-ons;
- duplicated scripts;
- dead code;
- unnecessary plugins, widgets and forms inside the CMS.
- CSS Drive
- CSS Compressor
- Online Compressor
With AMP (Accelerated Mobile Pages) you can create extremely simplified website pages that contain only the basic content: no widgets, dynamic blocks, ads, and even comment forms. Such pages have a very high loading speed – usually no more than 2-3 seconds. But there are also disadvantages to such web site speed optimization: reduced functionality, faded appearance. That’s why this technology is mainly used by blogs, news portals and information sites.
TCP, TLS, HTTP/2
TCP is a popular network protocol based on a “restart window”. The higher the size of the window (the number of packets for transmission), the greater the bandwidth. But how to speed up your website adjusting this protocol? Your job is to correctly calculate and adjust the TCP buffer size. Most developers use two times the latency and bandwidth for this. To change the size of the buffer, use the Setsockopt call if you code in C or the setReceiveBufferSize and setSendBufferSize methods for Java. This adjustment is focused on speeding up large-scale portals and servers letting users load pages faster. The main thing is to regularly update the system.
As for TLS tuning, it will shorten response times and increase the level of connection security. It helps load web pages faster by making the following changes:
- enable shared session cache and disable built-in analog;
- equalize the number of working operations with the number of processors;
- allow keep-alive connections;
- increase the session lifetime.
HTTP / 2 is a fairly young protocol that contains performance mechanisms designed to reduce the impact of network delays. To enhance your web site speed optimization, SEO pros recommend that you avoid embedding files in HTML, domain sharding, sprites, and file concatenation.
The page opening time is 80% dependent on the loading of CSS, scripts and images. Reducing the number of the aforementioned items results in a faster web project. But how to make websites load faster without changing their look? To do this, it is enough to use the Inline images and CSS sprites embedded in the page – combined images that consist of small fragments. If you use multiple JS and CSS elements on a page, you can combine them into one file – this is a powerful and simple technique.