Website performance tuning -
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. Developers can use tools like webpack to have the convenience of using multiple files while developing the website and to have the performance benefit of a single bundle when deploying to production.
But in general, combining files means exactly that, all files are copied as-is into a single file. Minification is the process of optimizing the size of JavaScript and CSS files by removing or shortening symbols in the source code. The output is functionally equivalent, but not entirely human-readable.
What most optimized websites end up doing is first minifying JavaScript and CSS files and then combining them into single bundles. That is called synchronous loading. It will continue parsing the page while the script is loaded. There are different prefetching and preloading techniques that you can use to give hints to the browser about which resources will be required to render the page before the browser actually needs those resources.
DNS prefetching. You can tell the browser that certain domain names will need to be resolved to an IP address before the browser actually sees resources from that domain name.
This can seem like a small optimization, but it can make a difference when you have exhausted other techniques. TCP preconnect. Much like the DNS prefetch method, preconnect will resolve the DNS but it will also make the TCP handshake, and optionally the TLS handshake. This should be reserved for when you really know that the next step a user will take is to go to a certain page.
You can instruct the browser to prerender the complete page, along with downloading all the required assets by specifying the URL like this:. Plugins are reusable pieces of functionality, usually used in content management systems like WordPress or other pre-built website platforms. Plugins give website owners additional functionality such as analytics or the ability to leave comments on blog posts.
But plugins come at a cost. Each plugin will almost certainly load additional CSS and JavaScript files. Some plugins will increase the TTFB time as well because they require additional processing on the server for each page request. So I would recommend going through your plugins list and making sure that you really need each plugin.
You should delete any plugins that are not critical for your website. Caching is the process of saving a version of your files in a temporary storage location — a cache — that can be accessed faster.
There are lots of advantages to enabling browser caching as it can reduce bandwidth consumption, increase load times , reduce latency , and the workload of the server. The main downside is that basically there will always be at least two versions of your website at any given time.
This can cause issues if you are running a real-time service that relies on accurate data but even this can be addressed to some degree forcing subsection of the cache to clear when new data is imported. The first step to improving the performance of your website is to measure it.
Measuring the performance requires specific tools, and ongoing monitoring is a must if you want to be alerted if your changes are improving the performance or if performance is degraded over time. There are two approaches to website monitoring: synthetic monitoring and real user monitoring.
synthetic monitoring where we compare the two types of monitoring. In either case, we suggest using cloud-based website monitoring tools so you can focus on growing your business instead of building or managing your own tools.
Sematext Cloud offers solutions for both synthetic monitoring and real user monitoring. Try it free for 14 days!
Looking for more tips on how to speed up your WordPress website? Check out this short video below for more details:.
Improving website performance can be challenging, especially with the vast differences in devices, connectivity, browsers, and operating systems, but it will have a significant positive impact on your business if your business relies on your website as one of the main channels for reaching your customers.
Spend some time looking into the monitoring tool results, make changes on the website, and then compare the performance before and after the changes.
Sematext ensures end-to-end visibility into all the components of your application to help you maintain the performance and availability of your website. Give it a try!
Start Free Trial. Table of Contents Why Is Page Speed Important What Affects Site Speed How to Measure Website Speed What Is a Good Website Speed? Best Practices to Speed Up Your Website 1.
Reduce the Number of HTTP Requests 2. Optimize Image Sizes 4. Use a Content Delivery Network CDN 5. Write Mobile-First Code 6. Minimize Time to First Byte 7. Choose the Right Hosting Service Plan 8. Implement Gzip Compression 9. Minify and Combine CSS, JavaScript, and HTML Files Load JavaScript Asynchronously Consider Using Prefetch, Preconnect, and Prerender Techniques Reduce the Number of Plugins Use Website Caching But first things first.
Why Is Page Speed Important Research shows that the amount of time a user will wait before losing focus is roughly from 0. What Affects Site Speed There are a number of reasons why your site load time might be lagging. Sematext Experience Find out where and why users struggle in your apps.
Share Twitter Facebook LinkedIn Reddit Email. You might also like. When all data required to fully load your site is stored in one place, initial and ongoing load times suffer. This issue will only heighten as internet and data service providers continue to experience dramatic growth in internet traffic worldwide.
Content delivery networks CDNs can help. They use multiple servers to store replications of your content across multiple locations. When users visit your site, the CDN chooses the server or servers closest to their physical location to optimize content delivery.
Image Source. CDNs are becoming increasingly popular. According to the HTTP Archive , the median weight of images on a web page on desktop is over 1, KB! PNG and.
TinyPG is just one example. Instead of using one of the image formats above and running them through an image compression tool, you could use the WebP format.
This format provides superior lossless and lossy compression for images. The problem? More redirects mean more load on the server, which can increase loading time.
As your site grows, these HTTP requests start to stack up and eventually create a noticeable delay between user click-throughs and actual page loading. The good news is that many of the strategies in this guide, like using a CDN and minifying CSS and JS files, can help limit the number of HTTP requests you site makes.
Learn more about reducing your website's HTTP requests. The more you can reduce file sizes without compromising quality, the better your website performance. One of the most robust and reliable compression frameworks is Gzip, but other methods can also deliver reduced file sizes without impacting the user experience.
If your CMS doesn't offer this feature, then consider installing a caching plugin. The SiteGround Optimizer plugin is a great choice for an all-in-one optimization plugin, offering plenty of features for caching, image compression, frontend optimizations, and other features that can significantly speed up any WordPress website.
It's free and easy to use, and comes packed with premium features such as CSS, JavaScript and HTML minificaiton, GZIP compression, and several options for caching. Solve for errors by running free, external tools to track down outcomes and remove dead links. According to data from Statista , the number of mobile internet users in the United States in amounted to That number is expected to grow to Not only are more people using mobile devices to access the internet — more people are using it as their preferred device type.
According to data from a HubSpot survey of over web traffic analysts in the U. As more users switch to mobile devices as their primary browsing and shopping mediums, speedy mobile sites are essential. A website builder can be a great option for quickly building and customizing a site.
But it can lack the infrastructure and features to help websites with complex issues like slow load times. If you don't have the time, resources, or experience to employ all the optimization strategies in this guide, consider migrating to a CMS.
The right content management system can significantly improve website performance by streamlining content retrieval and offering robust options to modify site operations. Some even come with a built-in CDN. JavaScript and CSS files are among the largest files on a website. They also count as individual HTTP requests.
So five JS files and five CSS files would require a total of 10 HTTP request. Another way you can reduce the size of your JavaScript and CSS files is minifying them.
This technique involves removing any unnecessary code like:. This will reduce file sizes and therefore load times. You can do this manually or use a minification tool. The longer it takes your domain name server DNS to respond, the longer your time to first byte TTFB and the slower your site loads.
Free online tools can determine where your DNS provider ranks compared to other offerings, which in turn helps pinpoint specific performance issues. Worth noting? In some cases, your hosting provider will also supply DNS services, while in others these two functions are separate.
The good news is many CMS platforms provide built-in features or plugins to enable asynchronous loading for CSS and JavaScript elements, which allows them to load simultaneously.
To maximize page loading speed, use the fewest number of fonts possible, and focus on fonts that are optimized for speed. For example, in a study of the top 10 Google Fonts by KeyCDN , Open Sans had the lowest load time at 0.
Last but not least: identify performance-sapping plugins also called add-ons or extensions. Here, the speed rule is simple: Only keep the plugins you need and always deploy the latest, fastest versions. This is particularly important if you run a WordPress website.
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