Javascript web page load time

We'll send you updates from the blog and monthly release notes. Back in , Google announced that loading speed would be a factor for Google Search and Google Ads. This started a big conversation among marketeers around performance. Performance has always been important, especially in eCommerce contexts, but it became an urgent issue when Google raised the stakes.

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Content:

• How to Make Your Mobile Site Load Faster – 15 Ways to Improve Mobile Speed
• JavaScript Page Load Events
• Page load time explained
• Reduce The Impact of Third-Party Code
• How to Optimize Page Speed From 18 to 2 Secs – Tips From a Web Design and Development Expert
• Google Analytics And The Page Load
• How to Improve Your Page Load Speed by 70.39% in 45 Minutes
• Fixing a slow site iteratively
• Table of Contents
• 9 Tips to Reduce Page load Time and Speed Up your Website (Infographic)

How to Make Your Mobile Site Load Faster – 15 Ways to Improve Mobile Speed

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Find out more here. UX Design 9 min read. SEO 6 min read. Digital Marketing 7 min read. TakeOff Sessions Episodes 5 min read. TakeOff Sessions Episodes 10 min read. Web design and development is a continuously active effort. Was the website load almost instant? Just a few seconds? Or was it — God forbid — more than six seconds? But if your page load speed is way more than that, call up your SEO agency and have them run a thorough t echnical SEO audit and re-visit the items that may be slowing it down.

In this impatient, fast-paced world, letting your audience wait for your website to load is a crime. Since April , your website speed is a ranking factor for Google. It is also a crucial factor when it comes to ranking in mobile searches. Because of the increasing number of active mobile users, making sure that your website is optimized for mobile screens and searches is important.

There are various reasons why a website takes time to load. With all those probable reasons, where do you start? According to Googl e, a good and ideal page load time is three seconds. Ho wever, according to recent benchmark report findings , a lot of sites are nowhere near that as most of them took seven seconds to load. Thus, a good page loading time can be at 3 seconds at best and 7 seconds in the very least. You may be wondering why page speed is important. There are two factors we consider the importance of page speed: user experience and page ranking.

According to a study conducted by Pingdom , websites with a longer load time tend to have higher bounce rates and lower average time on page. Google is said to use page speed as one of the signals used by its algorithm to rank pages.

Slow page speed can mean that web spiders can crawl fewer pages using their allocated crawl budget, which could negatively affect your indexation. A few years ago, our website had a complete renovation. We focused on giving our audience the best user experience and attractive visuals.

When we finally launched it, we took a Google website speed test and saw that it takes 18 seconds for users to see our website. Not on our watch. Upon learning that our website has a low page speed, we decided to start the page speed optimization project. First, we started by reviewing our performance based on the right metrics:. This enabled us to identify the opportunities for improvement and know the techniques we need to implement. To know how to test the website loading speed and check these key metrics, these tools will help you:.

When a browser loads your website, it actually downloads resources from the server first. If you have files larger than bytes, the browser takes longer download time which makes your page load slower. With this, it is highly recommended that you compress the size of your files larger than bytes. Apache developers can easily do this by putting the following code in your.

For Nginx servers, edit the main configuration of your Nginx server by placing the following code and reload Nginx for any changes to take effect:. Enabling compression of huge files enables your site to load resources faster.

However, compression should only be used for files other than images as it affects the quality of your visuals. Using image optimization on your website will increase the page speed time. Doing image optimizations will also increase ranking in search engines. There are three recommendations when optimizing the images on your website to quicken the page load speed. Using progressive images. A progressive JPEG encodes the image into several scans. The first scan renders the full image in low quality and for each successive render, the quality of the image is improved.

Serve images based on the media. For instance, you may have three different images meant for the desktop, tablet, and mobile. To implement this correctly, you need to use the picture tag of HTML5 and define the sources. Refer to this code for the example:. Optimizing the JavaScript and CSS delivery is important because it also optimizes the critical render path.

Critical render path is the series of events that happen in the background before your web page content is actually displayed. It determines the necessary events that make the above-the-fold region of your web page appear in your browser. Optimizing the critical render path can actually take off some very important seconds out of your page load time.

To do this, you need to reduce the number of JavaScript assets being downloaded by the browser and minimize the size of the JavaScript being downloaded. Just combine all important JavaScript library files ex. You may minify this file to reduce the size of the downloaded file. You may also opt to inline small JavaScript codes. Inline scripts are executed immediately.

This is particularly helpful for instances where JavaScript is needed to display the first elements in your above-the-fold region, like sliders and the menu. To detect which CSS files actually style your above-the-fold region, you can use Google developer tools:. Naturally, responsive websites have many lines of CSS codes that are actually not necessary for some other media or viewing devices. For example, there is a specific code dedicated to both desktop and mobile only. You need to optimize by separating these rules and putting them in different files and define media tag when calling each style.

Another thing that could be clogging your page load speed is the fonts and icons you use on your website. There are two ways to optimize your website icons:.

Use a single image sprite and just control the display of icons via CSS. Rather than include each small icon as a separate image file in your website, just having one image file to load is more efficient in memory and in bandwidth since you are only requesting only one file.

Converting all your icons into. You can use IcoMoon app to convert the icons to. You want to be consistent with your typography since this is also important for your branding. This provides a faster experience for your users. It is crucial to deliver optimized font formats to each browser. You must also give precedence to local in your src list.

Lastly, you may want to prioritize fonts that are already pre-installed in your website rather than calling fonts from external repository such as Google Fonts.

This reduces calls from external websites and thus, quickens your loading time. Using this technique properly will dramatically fasten your page speed. One must also crunch variable names so as to minimize code and reduce file size.

The minified file version provides the same functionality while reducing the bandwidth of network requests. You may use these tools to minify:. Each time a page redirects to another page, your visitor faces additional waiting time for the page to load. As much as possible, all your external and internal links should not redirect.

Some websites do this because there has been a major re-layout or major restructuring of information. So if your website is undergoing one, remember to reduce or minimize redirects. Before, data centers used to be in one location only. So if your data center is in the US and someone from Singapore is accessing your website, the data will have to travel between both countries.

This takes up too much time which affects your website speed. This is also known as Fibre Optic Latency. With a CDN, you will be able to serve your website from the nearest data center to the person browsing your website. Using CDN is helpful to improve user experience in terms of page load speed, which as we know, also matters in google page ranking.

Aside from this, it also helps to prevent site crashes in the event of traffic surges. It distributes bandwidth across multiple servers, instead of using only one server to handle all traffic. Lastly, you must be using a reliable caching technique. HTTP caching occurs when the browser stores local copies of web resources for faster retrieval the next time the resource is required.

As your website serves resources such as CSS, JavaScript, and images, it can attach cache headers to the response specifying the desired cache behavior. If this is enabled, the server simply accesses the stored HTML file of the page and serves it directly to users. When using cache techniques, it is important for you to remember to purge previously cached resources when making changes in your website.

JavaScript Page Load Events

Browser DevTools are great for monitoring web application performance on your local development PC. You can post collected data to a service such as OpenReplay. To help identify performance bottlenecks on specific browsers, devices, or even user sessions. Historically, developers had to adopt the Date function to record elapsed times, e. Resource and user timing is also available in client-side Web Workers.

Page load time explained

Nicole in SEO. A big factor when it comes to site speed is Javascript. Most of the websites that we work on will have unused Javascript or large Javascript files that are served on all pages templates. This is commonly seen on Shopify stores, for example, Javascript that may only be needed on the blog is also getting served on the homepage and the browser is having to load these files before the page is fully loaded, therefore impacting the whole load time of a site. There are many ways to fix or improve the Javascript that is on your site. The following points will highlight the best way to optimise the JavaScript on your site, which will improve your overall page load. A way to fix this is code splitting. Code splitting is the process of splitting code into different bundles or components, which can then be loaded when needed. By splitting the JavaScript on your site into different files, a browser will only have to load the Javascript that is critical to the page and not have to load extra bytes that are not needed. Bloated JavaScript is JavaScript that is seen as too long, slow or unnecessary.

Reduce The Impact of Third-Party Code

How to. API Beta. A fast website is vital to delivering a great end user experience. That's why there's so many resources available on the topic, and companies often spend a lot of resources on optimizing their websites. Tools like Panelbear help you understand how fast or slow your website is for every page view.

How to Optimize Page Speed From 18 to 2 Secs – Tips From a Web Design and Development Expert

Know how your site or web app is performing with real user insights. Pinpoint the root cause down to a poor-performing line of code. Integrated, cost-effective, hosted, and scalable full-stack, multi-source log management. Quickly jump into the relevant logs to accelerate troubleshooting. Loading time is one of the critical components with an impact on the user experience.

Google Analytics And The Page Load

Everyone seems to be in a maddening frenzy to optimize their site and reduce page load time. Because page load time decides whether a visitor to your site will explore further or part their ways. A slower page load time also hampers the SEO, User experience and brand image of your business. Check out the stats that reveal the same. Remember, faster page load time not only makes your users happy, it decreases your bounce rate, and improves your conversions manifold. But how would you decrease your page loading time?

How to Improve Your Page Load Speed by 70.39% in 45 Minutes

An important part of working with JavaScript is ensuring that your code runs at the right time. Things aren't as simple as putting your code at the bottom of your page and expecting everything to work once your page has loaded. Every now and then, you may have to add some extra code to ensure your code doesn't run before the page is ready. Sometimes, you may even have to put your code at the top of your page

Fixing a slow site iteratively

WordPress is one of the most frequently used platforms for content management systems. However, the default options on WordPress can slow down your website. I will show you how to improve your WP configuration and make it faster. Site speed is crucial for both the user experience and SEO. Excessive plugins slow down loading time.

Table of Contents

Making your application fast is crucial. It scores higher on Google and probably search engines, but more importantly, it provides a much better user experience , especially on mobile. Load time consists of downloading resources, processing them, and rendering the DOM. Traditional websites are usually bottlenecked by the network bandwidth, while in rich web frontends, JavaScript processing time might become a problem , especially on slower mobile phones. The Cache-Control header instructs the browser and proxies on how to cache your resource, avoiding multiple requests to your server.

9 Tips to Reduce Page load Time and Speed Up your Website (Infographic)

People like web pages that load quickly. Google experiments show that a delay as small as a hundred milliseconds can have an adverse effect. But how do we measure web page load speed? And what does "page load" actually mean?