Many websites use graphics heavily. For example, websites sometimes use images with 2x or even 3x resolution so they are displayed well on high-density displays such as retina screens. But if your users are not using a HiDP display, then you are just wasting bandwidth and increasing the load time for your visitors, especially if they are on slow mobile data connections.

You can read this MDN guide for using responsive images correctly. Specifying multiple image sizes will allow the browser to select the appropriate image based on screen resolution. Shopify has a good guide on how to do that.

Make sure that you use the correct file type too! Use JPEG for images with lots of colors e. Serving static files can get tricky.

Luckily there are services designed especially for this: Content Delivery Networks or CDN. CDNs will optimize the delivery of static files such as CSS, images, fonts, and JavaScript to your visitors.

Setting them up is usually very simple. CDNs use geographically distributed servers. What this means is that the server closest to your visitor will be serving the files. So the load time for e. Generally, when serving static files from your own servers, the load time increases when users are physically far from the server.

You can use Sematext Experience to monitor the performance of files hosted on CDNs so you can actually measure if outsourcing this part of your infrastructure makes sense.

When we first started using a CDN for serving assets for Sematext Cloud we actually used Sematext Experience that showed that we were indeed serving things faster to our users. Fig 1. Experience chart showing the avg. load time for the top five slowest domains.

Mobile devices are eating the world. Or so I am told. You should check what your users are using a RUM solution such as Sematext Experience or even with your website analytics tool of choice e.

Google Analytics just in case. Usually, developers write and test websites on their own desktop devices, and only later they optimize the website for mobile devices. This can often be a painful process, depending on the choices made while writing the website.

Fig 2. Experience chart showing the difference between Mobile and Desktop load time performance. But what if, while testing the website we used mobile devices or emulators? That way we would write for mobile first.

The experience would be by default optimized for mobile devices. Then adjusting the website for desktop devices would be a more straightforward process. We can progressively enhance the experience for devices with more power and screen real-estate.

Just remember to also throttle the network and CPU to better simulate the experience of mobile users. Time to first byte , or TTFB, is the time it takes for the browser to receive the first byte of data from the server.

This is therefore a server-side concern but it plays an important role in the overall performance of your website, so you should take some time to improve it. The main factor under your control when it comes to TTFB is server processing time.

Therefore you can try some of the tips recommended by Google to improve TTFB :. A TTFB below ms is considered great.

The ms to ms range is considered normal and okay. A TTFB consistently higher than ms will need to be investigated. And Sematext Experience can help you with that along with monitoring other Web Vitals metrics as well. This ties into the previous point about minimizing time to first byte.

You should look into upgrading the hosting service plan or if you are using WordPress, consider using a managed service that is well known for stable and high-performance hosting.

You should enable gzip compression on your HTTP servers. Gzip compression minimizes the size of HTTP responses for certain file types. It is usually used for textual responses only. This should reduce the load times and save on bandwidth. I already mentioned that you should try to load both JS and CSS in a single request for each.

This is accomplished by minifying and combining separate JS and CSS files into single bundles. Browsers have a limit on parallel network requests so if your website needs 3 requests in total to load, it will be most likely faster than if it had to load 30 different resources.

For instance, from the list below, addressing the reduction of main-thread work—comprising tasks like parsing, compiling, and executing JavaScript—should take precedence over tackling issues like mitigating significant layout shifts.

Encountering errors diminishes the likelihood of users revisiting your site, resulting in potential customer loss. Address this issue by utilizing free, third-party tools to identify occurrences and eliminate broken links.

These hosting plans are very easy, low-cost, and starter-friendly, and if your website remains the same, that hosting plan can be a perfect fit.

But, if you give progressive content eventually your site will develop, and faces backing off. If that is your case, the best decision is to upgrade your web hosting plan. Then your users will be happy, your Search engine optimization SEO , website ranking will remain strong, and your website will be able to grow and change as you need it to.

The main cause why browser caching is essential is because it cut down the load on your web server, which ultimately reduces the load time of the website for your users with increased page speed.

When you visit a website page, your program downloads all content of the specific page just as normal static documents like CSS and JS files. Furthermore, when you visit another page of the same website, your browser starts downloading them once more.

In any case, if you have enabled Leverage Browser Caching, it will just download the unique content of the web page and static files will serve from your program. In this way, you can accelerate the website speed optimization process.

Where again these files are uncompressed and served from the browser as a result of your user query. It can help decrease the size of your website page, which can essentially diminish the time to download the asset, lessen information utilization for the user, and enhance the opportunity to initially render your pages.

Excess of plugins can make your activity harder and more confounded than it should be. If you have some plugins installed that you no longer use or find unessential, you should deactivate and uninstall them. The more HTTP requests , the more extended time to load.

The most effortless approach to lessen the number of HTTP requests on your pages is to not utilize numerous pictures, contents, CSS, Flash, and so forth. Minification is the way toward limiting code and increase in your web pages and content files. The significance of images in connecting clients to your items has been proven.

If your website takes over 3 seconds to load, clients are bound to desert it which will radically expand your bounce rate and in the long run, it will influence your conversions.

Image optimization enhances Page load speed, SEO ranking, boost conversations, enhance user engagement. The subject of your site can likewise influence page load speed. Regardless of how great your server configuration is, if your website theme has a complicated code, your site will stack lazily.

Build it as per mobile-first design. Yet, CDNs not just only ensure a faster experience for your website users, but also help to anticipate site crashes in case of traffic floods. The google rankings are based on hyperlinks.

At the point when everything is well and great, each link on our site will lead precisely to the perfect spot. To evade these potential entanglements, you should regularly check for broken links on your whole website. Redirecting visitors away from a page, rather than keeping them on that page, can also slow down page load times.

This is because the browser and web server have to continually send and receive data to the destination page instead of just sending it once. Sites that have lots of redirects can have a negative impact on performance. A website is the focal point of your entire internet marketing strategy and your CMS is the core of your website.

A CMS removes the middle man and empowers you to refresh and alter the content of your site. For example, you can find HTTP redirect requests, fonts loading with settings that hide text during page load, and large DOM sizes.

This is just a sample of what can be found within a WPT test. Chrome DevTools is the least user-friendly tool among this list. It requires using Chrome and some technical prowess. Unlike the other tools, DevTools runs a complete page load and analyzes it within the browser.

DevTools will give you a breakdown of the items that make up a page load: scripting, loading, rendering, and painting. To get to DevTools, right click your page and click Inspect.

From there, DevTools is open. There are many tabs, from Elements to Sources, to Network, to Performance Insights. The Elements tab can help you find snippets of code without bringing up the page source, or finding color codes. The Lighthouse tab can run experiments for you to analyze page load to look at performance, accessibility, SEO, and more.

And, the Performance Insights tab provides a great waterfall view of scripts running on page load and shows whether they pass or fail for key CWV metrics. After using these site speed tools a few times you might default to a favorite, but we always recommend running each tool separately to perform a full analysis.

In my experience, the following improvements are the easiest to implement and give the most substantial results:. All original data remains, the compression will reduce the size of the image, remove excess and redundant information, and reduce the file sizes.