The Ultimate Guide To Speed Up WordPress Site For Mobile

Guide to Speed up a WordPress Site for Mobile

Do you run a WordPress site?

If yes, what, according to you, is the most crucial component that you must take care of?

Loading Speed of your Website! Well, you guessed it right! In this digitized world, no one wants to waste time waiting. So, it is pretty evident that if your WordPress site takes more than a few seconds to load, you will lose significant traffic. Optimizing the site reduces the overall wait time, enabling your site to load faster, even on mobile devices.

Often you might hear people showing too much concern towards the site’s theme and design instead of the load time. It is the wrong approach. If your website loads slowly, it won't matter if you have the most exquisite responsive design the world has ever seen. So, taking care of this factor becomes vital before your sales come down with an increasing bounce rate.

Here, in this guide, you will come across a detailed approach to understanding the importance of site speed, what pulls it down, and how exactly you can optimize. So, let’s buckle up and get started with WordPress server optimization:

What Makes Site Speed An Essential Component?

importance of website speed

Today, speed is more important than ever. In addition to the fact that your site visitors expect it, Google has long considered speed to be a ranking factor. According to Kissmetrics, 40% of visitors will leave a website that takes longer than three seconds to load.

A sluggish website won't likely cost you a billion dollars, but it will undoubtedly cost you thousands. Even if you are not making sales, you lose subscriptions and readers. Further, increasing site speed may significantly increase sales and conversions. A firm by the name of AliExpress witnessed a 36% reduction in page load time, a 27% boost in new customer conversion rates, and a 10.5% rise in orders. Amazingly amazing, right?

So, how can you achieve that on your website?

Let us start with some testing…

How To Test Mobile Page Speed?

Measuring the performance of your mobile website is the first step before making it faster. You must evaluate the state of your website, and the overall performance users on mobile devices are experiencing.

1. Google PageSpeed Insights

Google pagespeed insights report

Google PageSpeed Insights, a tool for checking the best WordPress hosting speed assigns your site a score between 0 and 100. The better your website performs, the higher the score. It can produce tests for your desktop and mobile website to consider your mobile traffic. The most significant thing is that your score is followed by recommendations for enhancing the functionality of your site, some of which you can put into practice immediately.

Finally, PageSpeed Insights analyses the time it takes for your website to reach each phase of the page-loading process by testing something against Google's key web vitals. Core web vitals make it possible to understand your page load in more detail and how it impacts the user experience.

2. Chrome Developer Tool

The Chrome browser has a complete set of developer tools called Chrome Developer Tools. With these technologies, you may rapidly create better websites and modify web pages in real-time. Using the following shortcut keys, you may easily activate the tool whenever you want in your Chrome browser.

Using the performance tool of WordPress server optimization, you can quickly see what is using the most time and resources. There are several methods to segment the performance information, including by time, activity, and source. To refresh the page in the "Performance" panel, press Ctrl + E (CMD + E) followed by Ctrl + R (CMD + R). Make a note of how long you wish to be watched. After that, you can click Stop and assess the outcomes.

3. GTMetrix

gt metrix website speed report

Another well-known, free online speed test great for beginners is GTMetrix. The test's publicly accessible version does a great job of dissecting performance while keeping things straightforward. You'll receive two preliminary ratings at the end of the test: performance and layout. Other ways that GTMetrix breaks down results include a speed visualization showing your page load as a timeline of screenshots at each core web vital, a structured assessment that identifies WordPress speed optimization service areas, and a waterfall chart that tracks the loading times of individual page elements.

Sign in if you wish to run several tests using different browsers, locations, and connections. Your free account will preserve the results of the last 20 tests you ran. You may uncover anything slowing down your website by comparing data from several tests and downloading the waterfall charts created.

4. WebPageTest

Google WebPageTest Report

WebPageTest is a free site performance testing tool developed by a Google Chrome engineer. It offers more sophisticated statistics and insights than many other free tools. You can test the performance of your website on multiple browsers, gadgets, and locations. The application will produce statistics and insights to help you find problems and boost site speed.

You can get a thorough breakdown of page performance by scrolling down. There includes a waterfall chart, a visual history of the page load, videos of the page load, and a summary of the most important web metrics. Even better, the test displays your findings three times when it loads your website.

5. Lighthouse Metrics

Lighthouse report

Google created the page experience tool Lighthouse to inspect Progressive Web Apps (PWA) first. The tool does five assessments for SEO, Progressive Web Apps, performance, accessibility, and a long list of best practices.

Google Lighthouse mimics a user accessing your mobile site while using a shaky 3G connection and a somewhat underpowered handset during testing. To imitate real-world situations as accurately as possible, packets are dropped. Other data are merged with these findings. Following the exam, you will receive a report with your results, a score, and suggestions for how to proceed.

Reasons Making Your WordPress Site Appear Sluggish On Mobile

Mobile and Desktops: Different Requirements

A Desktop CPU vs. A Smartphone Processor: 

Performance usually comes second when designing mobile CPUs, with efficiency coming first. Compared to desktops, mobiles feature a less robust CPU architecture. Consequently, their processing speed is less powerful.

Network Latency: 

How rapidly information can be moved from one location to another is referred to as a network's bandwidth. A high Mbps value indicates that more data may pass the connection unhindered. The amount of time it takes for data to reach the network is known as network latency. Network latency is typically more significant on mobile networks than on desktops.

Unoptimized Mobile Images 

unoptimized mobile images

Images often act as malicious worms slowing down your overall site speed. Therefore, you need to optimize your site specifically for mobile devices. Furthermore, you can size down the images proportionally for smaller screens to make your content readable.

Disabled Mobile Caching 

usage of caching data for mobile speed

Images and movies must often be put onto websites that contain large amounts of data. Additionally, this may take some time. When you browse the website again in the future, caching will automatically make these items available, saving you time on slower connections or mobile devices.

Apply Animations, Preloads, or Sliders

Mobile users may be badly impacted by a layout or design instability, particularly if they weren't anticipating it. Too many sliders and animations can negatively affect conversion rates, SEO, and page speed. If your website suddenly changes its layout, Google will penalize you by giving it a low CLS score. Your ultimate user experience score and your SEO visibility and traffic will both be impacted by this Core Web Vital.

Use Of Too Many Plugins

The speed of your mobile site can be impacted by adding additional plugins, and using too many can compromise security and degrade performance. By introducing more DB queries and HTTP requests, plugins might make your site load slower. Some plugins call for special scripts or styles, which necessitates loading additional JS and CSS files.

Other Miscellaneous Reasons

Every website's most important component is its layout, which determines the size and placement of each element on the page. You won't be able to arrange your content or design user-friendly layouts without them. It will take time for the browser to determine the positions and dimensions if there are many elements to load and a lot of heavy JS.

How Can You Speed Up The WordPress Site For Mobile?

Now that you know the problems, it is time to work on them using the best WordPress speed optimization service. Let us know about the WordPress speed optimization tips:

tips to improve speed of wordpress website for mobile

1. Get Rid Of Unnecessary Content

Google claims people hate waiting for web pages to load the most while using mobile devices. They also anticipate them to be quick once loaded. Although network problems are primarily out of your control, you can take steps to reduce the size of your pages and remove any extraneous information. You may achieve this by serving mobile visitors with alternative content with the help of a website speed optimization service.

You may conceal content for mobile devices using various WordPress plugins, including WP Mobile Detect. However, you may also deliver information on mobile devices using a different website or URL. The majority of parallel mobile sites employ the "m" subdomain. This allows you to customize a mobile-centric user experience, but it can be a little expensive.

2. Optimize Images

image optimization for mobile device to improve website speed

The size of all the components that go into a WordPress site is a typical source of slowness. For instance, it takes longer for big photos to load. Therefore, you must minimize the size of your photos using the WordPress performance optimization service. Here are some steps you can take to ensure that any images on your mobile website are minimal and do not degrade the user experience:

  • Get rid of any photographs that don't contribute anything. Simply implementing this can significantly enhance mobile performance for many sites.
  • Make sure the photographs are in the proper file format if they must remain. When photos scale for various screen sizes, using an improper format can increase file size and compromise quality.
  • Compress your photos for the web. Numerous plugins and technologies, like TinyPNG, Smush, and ImageOptim, may lighten your images without sacrificing quality.

3. Make Your Site Design Simple

example of a simple designed website

Simplifying your design is another technique to make your WordPress website for mobile faster. Numerous little pictures, including buttons and icons, are used to create websites. Each of these elements increases the size of the page and necessitates a separate HTTP request for the page to render. The better, the lighter they are. If not, they could also make it take longer for pages to load.

It is advised to attempt to cut down on the number of elements on each page to minimize the number of HTTP queries. Then, if feasible, use CSS and SVG (scalable vector graphics) for animations, icons, and buttons rather than individual PNG/JPEG/GIF images. By reducing the page size and picture requests, these design improvements can make WordPress websites load more quickly.

4. Update Your WordPress Plugins Regularly

wordpress plugin update

The use of too many plugins or those that are improperly configured might affect the security and functionality of your website. The first step you must do if there is a significant lag is to update the outdated plugins. Then disable or remove those not required, leaving only those needed for essential operation.

If this does not resolve the problem, make sure that none of the active WordPress plugins is slowing down your website. The WordPress software is effective. If they are all the correct plugins, it can manage more than 40 of them. But all it takes is one rotten apple to ruin the whole crop. Your site could load 72.7 percent slower due to one problematic plugin. The most viable solution is to approach professionals to update your plugins regularly. 

5. Enable A Caching Plugin

enable w3total cache plugin

The components of a mobile website are kept on the user's device the first time they are accessed. The following time you visit the website, your browser will be able to load the page considerably more quickly, and your server will get fewer HTTP requests.

This occurs because a portion of the material has already been downloaded and stored; as a result, your browser copies the components to show after the initial load and provides those copies to future users. The action is referred to as browser caching. You may activate browser caching and shorten load times using one of the many caching plugins available. Some of the most well-liked ones are W3 Total Cache, WP Super Cache, and WP Rocket.

But remember, a cache plugin won't fix the issue if your site's numerous installed plugins are causing loading problems. Keep in mind to update your WordPress plugins and turn off any that are not required with the help of a professional SEO services company.

6. Implement Lazy Loading

lazy load plugin by wp rocket to improve website mobile speed

When it comes to image optimization, lazy loading is kind of a last resort. It ensures that images and videos load smoothly on mobile devices. The lazy loading script will cause an image that isn't being viewed by visitors right now to take longer to load.

Use the free Sluggish Load by WP Rocket plugin to enable lazy loading for your photographs and videos. However, you may stop using this plugin if you already use WP Rocket. The function of lazy loading is already available:

7. Use CDN

cdn usage for website speed optimization

Utilizing a quick CDN is a fantastic additional strategy for increasing WordPress speed. The purpose of content delivery networks, or CDNs, is to distribute and cache website material from many places to serve it more quickly. The rendering of material will take longer the farther away the user is from the server. What CDN does is link your website to international servers. This can reduce the number of seconds it takes for your website to load.

Your photos and other assets can be transferred to the cloud with the aid of a CDN. Even if your host doesn't support it, it still offers benefits like increased security utilizing HTTP/2. High security is possible against nefarious assaults, hacking, and breaches. One of the best CDN service providers, Cloudflare has a quick, flexible, and safe worldwide network. DDoS Protection might make your WordPress website load even more quickly.

8. Remove Render-Blocking Resources (JS and CSS)

rendering blocking css and js data representation

A visitor's browser must first load the accompanying Javascript and CSS files before loading the HTML when they arrive at your website. Typically, this is as it should be; a webpage without the need for a style sheet or script will appear unattractive and inaccessible. The issue, though, is that the webpage won't be shown on the browser until these files are entirely loaded. Hence, Javascript's render-blocking moniker.

Although a browser must load the style and script of a web page before displaying it, this additional latency may be eliminated without degrading the appearance of a webpage. Additionally, doing so will cut down on loading time. The secret is to postpone the loading of style sheets and scripts that don't influence the area of a page that viewers see right away after landing. The solution to this problem is to prohibit the browser from loading any files that do not influence the top portion of a webpage, which a user will see before scrolling down.

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To assist users in navigating your WordPress site on mobile more quickly and keep them interested in the content, it makes sense to improve site performance. You can also hire technical SEO experts for better execution.

There are several other cutting-edge techniques to speed up WordPress for mobile. However, if you are not computer savvy, simply the changes above can help you significantly improve the experience of your visitors. Keeping things basic is all you need to keep in mind. A few seconds may make all the difference when it comes to speed. 


On 3G, 77% of mobile websites load more slowly than ten seconds. On average, the typical mobile 3G load time is 19 seconds.

It may be from heavy JavaScript caused by plugins, page builders, and third-party code. It can also be from non-responsive images, lack of mobile caching, sliders, and a slow TTFB.

Adaptive images, a cache plugin that better addresses core web vitals, and Optimole are 3 WordPress plugins that can improve mobile speed.

Jagdish - Digital Marketing Professional


Jagdish Mali
Jagdish Mali is a professional digital marketer (specializing in SEO) with years of expertise in organizing and executing effective marketing campaigns across multiple channels.

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