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WordPress Website Analysis: Before & After ImageEngine

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WordPress is by far the world’s most popular CMS. Not only does it dominate the CMS market with a 64% market share, but it also powers 39.6% of all websites. It has taken the internet by storm by democratizing the web for all. Now, anyone can build, manage, and host a successful website without needing a college degree or coding expertise.

However, while WordPress is great at managing many technical aspects, it still can’t do everything for you. Built mostly on PHP, there are often concerns regarding how performant WordPress is. And, with performance impacting everything from bounce rates to SEO rankings to conversions, it’s something that should be on your radar too.

If you don’t know it yet, images are one of the main causes of slow-loading websites. In recent years, WordPress has stepped up its efforts to try and help users with image optimization out-of-the-box.

Still, as we’ll show, it’s not a total solution, and there is still plenty you can do to deliver better experiences on your WordPress website through image optimization.

What is WordPress Image Optimization? Why is it Important?

Simply put, image optimization is anything you do to make images load faster on your website pages. Almost all websites that use images can benefit from some form of image optimization, even those using WordPress.

Why?

Well, performance is a hugely significant factor when it comes to the competitiveness of your website today.

Google has also made performance an increasingly important factor when it comes to SEO rankings. In fact, performance is a direct ranking signal that carries significant weight.

Google’s Page Experience Update that went live in 2021 has been the biggest move in that direction yet. Soon, Google might even use visual indicators in SERP results to distinguish high-performing websites from the rest.

In Google’s own words, “These signals measure how users perceive the experience of interacting with a web page and contribute to our ongoing work to ensure people get the most helpful and enjoyable experiences from the web.”

So, Why Should We Target Images For Performance Optimization?

According to Google, images are the largest contributor to page weight. Google has also singled out image optimization specifically as the factor with the most untapped potential for performance optimization.

This problem isn’t going away soon. According to data by the HTTP Archive, there are roughly 967.5 KB bytes of image data on desktop web pages and 866.3 KB of image data on mobile pages. This is an increase of 16.1% and 38.8%, respectively, over the last five years.

Thanks to popular e-commerce tools like Woocommerce, it’s estimated that up to 28% of all online sales happen on WordPress websites.

And don’t forget, images are both a key part of conveying information to the user and integral to the design of your website. If they take significantly longer to load than your text, for example, it will negatively impact the user experience in a variety of ways.

In summary, optimized images help your WordPress website by:

  • Improving user satisfaction.
  • Improving various traffic metrics, like bounce rates, time-on-page, etc.
  • Boosting your SEO rankings.
  • Contributing to higher conversions (and sales).

How Does Image Optimization in WordPress Work?

WordPress is so popular because it’s a CMS (content management system) that allows anyone to build, design, and manage a website without any coding or advanced technical experience. Advanced features can be installed with just a few clicks, thanks to plugins, and you rarely have to touch the code behind your website unless you want to make some unique modifications.

In short, using a CMS like WordPress shields you from many of the day-to-day technicalities of running a website.

WordPress Image Optimization: What It Can Do

As we mentioned, one of the main reasons WordPress is so popular is because it takes care of many of the technical aspects of running a website. With that in mind, many think that WordPress should also automatically take care of image optimization without them having to get involved at all.

Unfortunately, that’s not really the case.

True, WordPress does offer some built-in image optimization. Whenever you upload an image to WordPress, it currently compresses the quality to about 82% of the original (since v4.5).

In v4.4, WordPress also introduced responsive image syntax using the srcset attribute. This creates four breakpoints for each image you upload according to the default WordPress image sizes:

  • 150px square for thumbnails
  • 300px width for medium images
  • 768px max-width for medium_large images
  • 1024px max-width for large images.

Here you can see an example of the actual responsive syntax code generated by WordPress:

<img loading="lazy" src="https://bleedingcosmos.com/wp-content/uploads/2021/12/33-1024x683.jpg" alt="" class="wp-image-9" width="610" height="406" srcset="https://bleedingcosmos.com/wp-content/uploads/2021/12/33-1024x683.jpg 1024w, https://bleedingcosmos.com/wp-content/uploads/2021/12/33-300x200.jpg 300w, https://bleedingcosmos.com/wp-content/uploads/2021/12/33-768x512.jpg 768w, https://bleedingcosmos.com/wp-content/uploads/2021/12/33-1536x1024.jpg 1536w" sizes="(max-width: 610px) 100vw, 610px">

Depending on the screen size of the device from which a user visits your webpage, WordPress will let the browser pick the most appropriately sized image. For example, the smallest version for mobile displays or the largest for 4K Retina screens, like those of a Mac.

While this may seem impressive, it’s only a fraction of what can be achieved using a proper image optimization solution, as we’ll show later.

Lastly, WordPress implemented HTML native default lazy loading for all images starting with version 5.5.

So, in short, WordPress offers the following image optimization capabilities baked-in:

  • Quality compression (limited)
  • Responsive syntax (up to 4 breakpoints)
  • Lazy loading

WordPress Image Optimization: What it Cannot Do

There are other issues many have with both the implementation of image compression and responsive syntax as it’s used by WordPress. This leads to some users even purposefully deactivating WordPress’ built-in image optimization so they can fully take control of it themselves.

Here are some of the reasons why:

  • WordPress uses a very basic form of quality compression. It does not use advanced technologies like AI and machine learning algorithms to compress images while maintaining maximum visual quality. It’s also lossy compression, so the quality is lost for good. You can clearly see the difference between an original HD image and the compressed version created by WordPress.
  • WordPress only compresses most images by up to 20%, while advanced image optimization tools can reduce all image sizes intelligently by up to 80%.
  • Responsive syntax can provide significant performance improvements over simply uploading a single HD image to be served on all devices and screens. However, it’s still only limited to a set number of breakpoints (typically 3 or 4). Since it’s not dynamic, a whole spectrum of possible image sizes is not created or used.
  • Responsive syntax code is not scalable and can quickly lead to code that’s bloated, messy, and hard to read.
  • WordPress doesn’t accelerate image delivery by automatically caching and serving them via a global CDN, although this can be done using other tools.

Another important optimization feature that WordPress does not have is auto-conversion to next-gen image file formats. Different image formats offer different performance benefits on different devices. Some formats also enable higher levels of compression while maintaining visual fidelity.

Next-gen formats like WebP, AVIF, and JPEG-2000 are considered to be the most optimal formats on compatible devices. For example, until recently, WebP would be the optimal choice on Chrome browsers, while JPEG-4000 would be optimal on Safari browsers.

However, WordPress will simply serve images in the same formats in which they were originally uploaded to all visitors.

How to Measure the Image Performance of a WordPress Website?

As the undisputed king of search engines, we’ll base most of our performance metrics on guidelines established by Google.

Along with its various performance updates, Google has released a number of guidelines for developers as well as the tools to test and improve their websites according to said guidelines.

Google introduced Core Web Vitals as the primary metrics for measuring a web page’s performance and its effect on the user experience. Thus, Core Web Vitals are referred to as “user-centric performance metrics.” They are an attempt to give developers a testable and quantifiable way to measure an elusive and abstract concept such as “user experience.”

Combined with a number of other factors, Core Web Vitals constitute a major part of the overall page experience signal:

You can find a complete introduction to Core Web Vitals here. However, they currently consist of three main metrics:

  • LCP (Largest Contentful Paint): The time it takes the largest above-the-fold element on your page to load. This is typically a full-sized image or hero section.
  • FID (First Input Delay): The delay from the moment a user first interacts with an element on the page until it becomes responsive.
  • CLS (Cumulative Layout Shift): The visual stability with which the elements on a page load.

Here is an illustration of how these metrics are scored:

While these are the three most important metrics to optimize, they are not the only ones. Google still measures other metrics like the FCP (First Contentful Paint), SI (Speed Index), as well as the TTFB (Time to First Byte), TBT (Total Blocking Time), and TTI (Time to Interactive).

A number of these metrics are directly affected by the images used on your web pages. For example, LCP, FCP, and SI are direct indicators of how fast the content of your web page loads and depends on the overall byte size of the page. However, it can also indirectly affect FID by keeping the main thread busy with rendering large amounts of image content or the perceived CLS by delaying the time it takes large images to load.

These metrics apply to all websites, whether they are custom-made or built using a CMS like WordPress.

When using tools like Lighthouse or PageSpeed Insights, you’ll also get scored based on other flags Google deems important. Some of them are specific to images, such as properly sizing images and serving images in next-gen formats.

If you only use built-in WordPress image optimization, you’ll get flagged for the following opportunities for improvement:

Some of the audits it will pass, however, are deferring offscreen images (lazy loading) and efficiently coding images (due to compression):

A Better Way to Optimize WordPress Images: ImageEngine

Billions of websites are all vying for prime real estate on Google SERPs, as well as the attention of an increasingly fussy internet-using public. Every inch matters when it comes to giving your website a competitive advantage.

So, how can you eliminate those remaining performance flags and deliver highly optimized images that will keep both your visitors and Google happy?

Sure, you could manually optimize images using software like PhotoShop or GIMP. However, that will take you hours for each new batch of images. Plus, you still won’t benefit from any automated adaptive optimization.

A more reasonable solution in today’s fast-paced climate is to use a tool developed specifically for maximum image optimization: an image CDN like ImageEngine.

ImageEngine is an automated, cloud-based image optimization service using device detection as well as intelligent image compression using the power of AI and machine learning. It can reduce image payloads by up to 80% while maintaining visual quality and accelerating delivery around the world thanks to its CDN with geographically dispersed PoPs.

Why is ImageEngine Image Optimization Better Than WordPress?

When making a head-to-head comparison, here are the reasons why ImageEngine can deliver better performance:

  • Device Detection: ImageEngine features built-in device detection. This means it picks up what device a visitor to your website is using and tailors its optimization strategy to what’s best for that specific device.
  • Client hints: By supporting client hints, ImageEngine has access to even more information regarding the device and browser to make better optimization decisions.
  • Next-gen formats: Based on optimal settings, ImageEngine automatically converts and serves images in next-gen formats like WebP, AVIF, JPEG2000, and MP4 (for GIFs).
  • Save data header: When a Chrome user has save-data mode enabled, ImageEngine will automatically compress images more aggressively to save on data transfer.
  • CDN with dedicated edge servers: ImageEngine will automatically cache and serve your optimized image assets using its global CDN. Each edge server has device awareness built-in to bring down latency and accelerate delivery. You can also choose to prioritize specific regions.

So, the key differentiator is that ImageEngine can tailor optimizing images for what’s optimal for each of your visitors. ImageEngine is particularly good at serving mobile visitors thanks to WURFL device detection, which can dynamically resize images according to most devices and screen sizes in use today. As of now, this is a completely unique capability that none of its competitors offer.

It allows for far better and more fine-tuned optimization than WordPress’ across-the-board approach to compression and responsive syntax.

If you want, you could turn off WordPress responsive syntax and compression, and you would still experience a performance increase using ImageEngine. However, ImageEngine also plays nice with responsive syntax, so it’s not completely necessary unless you want to serve the highest-fidelity/low-byte-size images possible.

How Does ImageEngine Work with WordPress?

The process ImageEngine uses to integrate with WordPress can be broken down into a few easy steps:

  • Sign up for an ImageEngine account: ImageEngine offers three pricing plans depending on the scale and features you need as well as a no-commitment 30-day free trial.
  • Specify your image origin: This tells ImageEngine where to find the original versions of your images. For a WordPress website, you can just use your domain, e.g., https://mywordpresswebsite.com. ImageEngine will then automatically pull the images you’ve uploaded to your WordPress website.

  • Copy the Delivery Address: After you create an account and specify your image origin, ImageEngine will provide you with a Delivery Address. A Delivery Address is your own unique address that will be used in your <img> tags to point back to the ImageEngine service. Delivery Addresses may be on a shared domain (imgeng.in) or customized using a domain that you own. A Delivery Address typically looks something like {random_string}.cdn.imgeng.in. If your images are uploaded to the default WordPress folder /wp-content/uploads/, you can access your optimized images from ImageEngine simply by changing your website domain. For example, by typing {imageengine_domain}.cdn.imgeng.in/wp-content/uploads/myimage.jpg into your browser, you’ll see the optimized version of that image. Just press the copy button next to the Delivery Address and use it in the next step configuring the plugin.

  • Install the ImageEngine Optimizer CDN plugin: The plugin is completely free and can be installed just like any other plugin from the WordPress repository.
  • Configure and enable ImageEngine Plugin in WordPress: Just go to the plugin under “ImageEngine” in the main navigation menu. Then, copy and paste in your ImageEngine “Delivery Address,” tick the “Enabled” checkbox, and click “Save Changes” to enable ImageEngine:

Now, all ImageEngine basically does is replace your WordPress website domain in image URLs with your new ImageEngine Delivery Address. This makes it a simple, lightweight, and non-interfering plugin that works great with most other plugins and themes. It also doesn’t add unnecessary complexity or weight to your WordPress website pages.

ImageEngine vs Built-in WordPress Image Optimization

So, now let’s get down to business by testing the performance improvement you can expect from using ImageEngine to optimize your image assets.

To do this test, we set up a basic WordPress page containing a number of high-quality images. I then used PageSpeed Insights and the Lighthouse Performance Calculator to get the performance scores before and after using ImageEngine.

Importantly, we conducted this test from a mobile-first perspective. Not only has mobile internet traffic surpassed desktop traffic globally, but Google themselves have committed to mobile-first indexing as a result.

Here is a PageSpeed score using the Lighthouse calculator for WordPress with no image optimization:

As we can see, both Core Web Vitals and other important metrics were flagged as “needs improvement.” Specifically, the LCP, FCP, and TBT. In this case, both the LCP and FCP were a high-res featured image at the top of the page.

If we go to the opportunities for improvement highlighted by PageSpeed, we see where the issues come from. We could still save as much as 4.2s of loading time by properly resizing images and a further 2.7s by serving them in next-gen formats:

So, now let’s see how much ImageEngine can improve on that.

The same test run on my WordPress website using ImageEngine got the following results:

As you can see, we now have a 100 PageSpeed score. I saved roughly 2.5s on the SI (~86%) as well as roughly 1.7s on the LCP (~60%). There was also a slight improvement in the FCP.

Not only will you enjoy a stronger page experience signal from Google, but this represents a tangible difference to visitors regarding the speed with which your website loads. That difference will lead to lower bounce rates, increased user satisfaction, and more conversions.

There was also a 53% overall reduction in the total image payload. This is impressive, considering that it’s on top of WordPress’ built-in compression and responsive syntax.

Conclusion

So, as someone with a WordPress website, what can you take away from this?

Well, first of all, WordPress does feature some basic image optimization. And while not perfect, it should help you offer reasonable levels of performance, even if you use a lot of image content.

However, the caveat is that WordPress applies aggressive, across-the-board compression, which will lead to a noticeable reduction in visual quality. If you use WordPress for any type of website where premium quality images are important, this is a concern — for example, as a photography portfolio, exhibition, or image marketplace like Shutterstock.

By using ImageEngine, you can reduce image payloads and accelerate delivery even further without compromising too harshly on visual quality. What’s more, ImageEngine’s adaptive image optimization technology will provide greater improvements to more of your visitors, regardless of what device(s) they use to browse the web.

Whether or not you still want to use WordPress’ built-in optimizations, ImageEngine will deliver significant improvements to your user experience, traffic metrics, and even conversions.

Plus, true to the spirit of WordPress, it’s extremely simple to set up without any advanced configuration. Just sign up for ImageEngine in 3 easy steps, install the plugin, integrate ImageEngine by copy/pasting your image domain, and you’re good to go.

 

[ This is a sponsored post on behalf of ImageEngine ]

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The post WordPress Website Analysis: Before & After ImageEngine first appeared on Webdesigner Depot.

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8 Reasons Your Site Is Slow + How To Fix Them

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1, 2, 3 – That’s exactly how long it takes you to start losing visitors if you have a slow-loading website.

Hold on! Surely, the only thing that matters to users is that your website works flawlessly and looks great… right? Wrong!

The fact of the matter is that we’ve all become accustomed to instant access to information and content. The average internet user today places a lot of value on speed, and the bar is continually being raised.

If you are like most people, you probably feel an immediate sense of dread at the thought of optimizing your website. Where do you start? How can you make the most impactful improvements? What makes your website slow in the first place?

Have no fear, as we’ll be answering all of your questions below as well as putting you on your way to a website that loads with blazing speed.

Why Should You Be Worried About A Slow-Loading Website?

Good question!

As many as 53% of visitors abandon a site that takes more than 3 seconds to load. Even worse, 1 in 3 shoppers will leave a website if it takes longer than 5 seconds to load.

So, performance plays a huge role in the user experience of your website and whether your visitors will stay on your website or be converted into customers.

For some time, Google has been keenly aware of this fact. As a search engine, Google knows that it’s counterproductive to recommend content to users if they won’t stick around to consume it.

That’s why they’ve continually been increasing the role performance plays when ranking websites for their SERPs (search engine results pages).

In recent years, Google has introduced core web vitals. These are metrics they hope will help quantify how performance affects the user experience. In general, they measure how fast, stable, and interactive a page is while loading. This will be more important than ever after Google announced its Page Experience update, which started its global rollout in June 2021.

As you may know, ranking highly for Google is vital for your website’s visibility. For one, 68% of online experiences begin with a search engine, of which Google has a 92.7% market share. Even if you manage to land on the coveted first page of Google, the first five results get over 70% of all clicks (28% to the first result alone).

So, to recap why a fast loading website is so desirable:

  • It directly affects your ability to keep, satisfy, and even convert visitors to your website.
  • It impacts your search engine rankings which impacts your “findability” and organic traffic.

8 Reasons Your Site Is Slow + How to Fix Them

O.K., so now that we’re all on the same page regarding the importance of your website performance, let’s look at common issues slowing down your website + how to fix them.

1. You’re Using A Sub-Par Hosting Service

As the party responsible for making your website available to the outside world, your hosting service can be a make-or-break factor. Not only should you pick a host that has a good track record when it comes to uptime a performance, but also one that’s suitable according to your needs.

Even if you take all the steps below to optimize your website’s performance, it may still load slowly if traffic to your website is overwhelming your available bandwidth or your host’s server capacity. If that happens, some users may experience extremely slow loading times, broken features, or even complete unavailability.

For most personal, blog, or local/small business sites, a respectable hosting provider like Bluehost or GoDaddy should be good enough. However, if you plan on running any type of large-scale, high-traffic webstore, business portal, or other type of website, you’ll want premium hosting, such as WPEngine (for WordPress), VPS hosting, or even a dedicated server.

2. You’re Not Optimizing Your Media Assets

As you probably know, media like images and videos take up significantly more space than most other types of content, such as text, code, stylesheets, or other static files. Even a single image has the potential of consisting of more data than dozens of website pages containing nothing but the underlying HTML and text.

In a Speed Essentials presentation, the Google team identified images as the largest contributor to page weight. In fact, they have the potential to consume a website’s entire performance budget if left unoptimized. Images can also directly impact all three of Google’s core web vitals – key metrics Google uses to measure the performance of a website.

However, the use of images and video is likely to continue growing, heightening the importance of finding a sustainable solution. According to HTTPArchive, images have increased by 19.3% on desktop and 42.7% on mobile.

For now and the foreseeable future, optimizing your images carries the greatest potential for improving performance.

The problem is that optimizing image assets requires multiple steps. Most importantly:

  • Using the appropriate next-gen formats which can differ depending on the user’s device, OS, or browser.
  • Appropriately compressing the size and quality of images to reduce payload without affecting visual quality too badly.
  • Using the optimal display size and density based on the accessing device to reduce payloads further.
  • Using lazy loading to only load images as needed.

As you can see, manually going through these steps for every single image on your website can be extremely labor-intensive. This is especially true if you consider that you somehow need to create the optimal variants for different users based on what device, OS, or browser they are using.

In-code strategies, like a JS plugin, responsive images, or CSS media queries tend to bloat your code and lead to other performance issues we’ll discuss below.

Luckily, there are plenty of CDN services available designed specifically for providing some degree of automated image optimization. These platforms analyze the context (i.e., a specific mobile device model, OS version, and browser version) of the user trying to load one of your images and try to serve them a version of the image that’s ideally optimized for them.

However, any media optimization platforms still require installing a small JavaScript plugin to dramatically improve the image and video optimization capabilities. 

The one exception here is ImageEngine. ImageEngine uses WURFL device-detection to pick up every possible detail of the user’s device. The logic is built into their device-aware edge servers and doesn’t rely on you adding any additional code or markup to your website pages.

So, not only does it reduce your image payloads by up to 80% and serve them via a global CDN, but it doesn’t leave a footprint in your website’s code. As a bonus, it also happens to support the widest range of image/video formats, including animated GIFs, as well as client hints and save-data mode.

3. Render-Blocking JavaScript And CSS Is Delaying Page Loads

JavaScript is the de facto programming language for adding interactivity and advanced features to websites today. Likewise, CSS is the standard for adding styling. Both are critical components for almost any modern website.

However, nothing good comes free, and both may impact the performance of your website, particularly when used carelessly. 

The following are some steps you can take to minimize the impact of these assets on your website performance:

  • Minify your JavaScript and CSS files.
  • Combine a large number of JS/CSS files into fewer files.
  • Replace some of your external JS and CSS files with inline JS/CSS. (Don’t overdo this! Inline JS and CSS is only suitable for small code snippets).
  • Defer loading JavaScript until after all your content is loaded and use media queries for CSS files.

Because media can have a more significant impact on your page weight, this leads some to believe that adding more JavaScript is the lesser of two evils. 

However, depending on whether you already have render-blocking JS, Google might flag this as a completely new issue. Regardless, it will negatively impact your performance score in tools like PageSpeed Insights:

You can avoid it altogether by using an optimization engine like ImageEngine that doesn’t require any JavaScript.

4. You’re Not Using A Content Delivery Network (CDN)

A CDN is a network of servers spread across various regions all over the globe. What it basically does is store a copy of your website on each of these servers. When an internet user visits your site, the CDN automatically serves your website from the nearest server to that user.

What this does is allow your website to load faster, no matter where in the world people are visiting it from. If your website was only hosted on a single server, say somewhere in the U.S., then it could take much longer to load for a visitor located in Asia than one in the U.S.

While they all basically do the same thing, different CDNs are better at handling different types of content. Cloudflare, Fastly, and Akamai are just some of the most popular general-purpose CDNs around. Image CDNs like ImageEngine are purpose-built to not only serve image and video assets but to also optimize them using compression, formatting, etc.

So, the two main factors to consider are the type of content you want to deliver via the CDN and its global coverage. However, it’s usually possible to use multiple CDNs in tandem to cover different types of content and reach a wider area.

5. There’s Excessive Overhead In Your Database

If you have a website with any type of complexity, you probably have a corresponding database. In fact, all WordPress websites require a database to function.

Over the years, a lot of information moves in and out of the database. Sometimes, the data can get lost along the way or become obsolete. If you don’t regularly spring-clean your database, then this can really start to add up. Not only will it bloat the storage size of your database, but it will start to impact the speed of database queries and requests.

CMS users are especially prone to racking up these kinds of artifacts from plugins and themes that have been installed and removed over the years.

Unfortunately, there aren’t many easy fixes for this issue available. With most hosting providers, you’ll probably need to use phpMyAdmin to manually check and scrub your data. If you have a managed hosting solution, the host’s support team might be able to help you out. In the event that you have a locally installed database, there are some tools you can use, although they’re not 100% effective.

The best way to avoid any issues is to make database maintenance part of your routine and to learn the basics of how databases work.

6. You Have Too Many Plugins Or Themes Installed

For CMS users, plugins or themes offer near-limitless potential to spruce up the design and functionality of their website. However, each plugin or theme comes with additional code and content that add to the overall complexity and size of your website.

If you have a hand-coded website, the same goes for any additional applets or libraries you want to add to your site. 

The best way to combat this is to be conscientious when adding any extras to your website. Only install what you really need or want, and make sure to uninstall and properly remove them if you don’t need them anymore.

As mentioned, they might leave various transients or artifacts behind, so you should keep an eye out for them throughout your website files (not just the database) whenever you do some spring cleaning.

7. You Aren’t Utilizing Caching

Caching is often one of the most effective yet ignored techniques for improving website performance. Caching stores your website content in fast-access memory in the user’s browser, allowing it to be loaded near-instantaneously by users. This can include everything from text to stylesheets to images to JavaScript files.

Without caching, a user will need to redownload everything when they navigate to or reload a page — whether or not anything has changed.

However, not properly configuring caching on your website can lead to issues, such as users only loading out-of-date content. Most high-quality caching tools have built-in features that automatically clear the cache when you make changes to a specific website page or content. So, users will only reload content once it has been modified.

Some hosts offer out-of-the-box caching tools with their hosting service. CMS can also usually find plugins for this, such as WPRocket for WordPress.

8. Ads Are Dragging You Down

In the end, ads are just another form of media that increases the overall weight of your website pages. While they are typically small and lightweight, multiple ad placements can really start to add up.

What aggravates the issue is that ads are loaded from external sources. This means they’ll take longer to render, generate more requests, and may mess with how stable your pages load — affecting your core web vitals.

Depending on how important ads are to your revenue stream, you’ll want to carefully consider how many ads you use on your site, where to position them, and when they load. If possible, avoid loading ads at the same time as the rest of your page, especially interstitials.

Conclusion

As you can see, website performance is a multi-faceted subject. Although some may be worse than others, you can’t just address one area and expect your website to suddenly be performant.

However, some general principles apply:

  • Keep HTTP requests low by limiting the number of files required for each of your website pages.
  • Maintain proper code hygiene and spring clean transients and leftover artifacts.
  • Invest in proper hosting infrastructure as well as a CDN for your website.
  • Optimize your media assets to significantly bring down payloads without sacrificing engagement.

The final point deserves another shoutout. As we’ve pointed out, finding an optimization solution for your media, particularly images, is probably the best thing you can do to improve your website performance. From purely a performance perspective, there is no service quite as effective as ImageEngine. It’s also the one that requires the least amount of technical expertise and ongoing maintenance.

Regardless, you’ll want to run some tests using tools like PageSpeed Insights so you can gather data on what issues your website is facing. From there, you can prioritize fixes to make your website more competitive.

 

[– This is a sponsored post on behalf of ImageEngine –]

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The post 8 Reasons Your Site Is Slow + How To Fix Them first appeared on Webdesigner Depot.


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How to Improve Largest Contentful Paint (LCP) and SEO

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Contentful; Webster’s Dictionary defines “contentful” as… not found. Clearly someone made up this word, but that is not necessarily a bad thing.

The world of user experience metrics is moving quickly, so new terminology is needed. Largest Contentful Paint (LCP) is one of a number of metrics measuring the render time of content on a web page.

What is Largest Contentful Paint?

Google defines LCP as “the render time of the largest content element visible within the viewport.” For what we are talking about in this blog, we will consider “content” to be an image, typically a JPEG or PNG file. In most cases, “largest” points to a hero image that is “above the fold” and is one of the first images people will notice when loading the page. Applying optimization to this largest content is critical to improving LCP.

It is probably more instructive to view LCP relative to other metrics. For example, First Contentful Paint (FCP) and Visually Complete book end LCP.

Each metric has its pros and cons, but LCP is a happy medium. LCP marks when web page loading starts to have a substantial impact on user experience.

In Google’s opinion, to provide a good user experience, LCP should occur within 2.5 seconds of when the page first starts loading. Poor values are anything greater than 4 seconds.

How Does Largest Contentful Paint Impact Lighthouse Scores and SEO?

LCP is now part of several “Core Web Vitals” scores that Google will measure in its ranking algorithm. Each of the Core Web Vitals represents a distinct facet of the user experience, is measurable in the field, and reflects the real-world experience of a critical user-centric outcome.

In the case of the overall Google Lighthouse score, LCP represents 25% weighting on the performance score of Lighthouse version 6.0. This makes LCP the most important Core Web Vitals metric in determining the performance score.

While Google has indicated that content is still the most important factor in SEO ranking, a better user experience (as measured by Core Web Vitals) will generate higher rankings in a crowded field. If there are many websites competing for the top search engine spots, then Largest Contentful Paint will play a critical factor in rankings.

How to Improve Largest Contentful Paint

Now that you know that LCP is important, what can you do to improve it by making content load faster? Google provides a number of suggestions, but the most effective technique is to optimize content for the device requesting it.

For example, a website includes an 800kb JPEG image that is intended for high resolution desktops. On a smartphone, that would be optimized down to less than 100kb, with no perceptible impact on quality. LCP can improve by more than 60% — or several seconds — through this single optimization.

Find Savings in Largest Contentful Paint by using Image Speed Test

Image Speed Test is a great tool offered by ImageEngine.io that provides an analysis of LCP improvement opportunities. Just paste in the URL of the web page you are interested in optimizing, and the test will show you:

  • Image Payload Reduction
  • Speed Index
  • Largest Contentful Paint
  • Page Load Time (Visually Complete)

It also provides a video of the web page loading with and without optimizations. Finally, it analyses each image to provide an estimate of payload savings. In this case, the “largest content” on the page is this image. With optimizations, the image payload is reduced by 94%. That delivers a huge improvement in LCP.

How Does ImageEngine Improve LCP

ImageEngine is an image content delivery network (CDN) service that makes image optimization simple. Basically, for each image on the page, the image CDN will:

  1. Detect the device model requesting the web page;
  2. Optimize the image in terms of size, compression, image format;
  3. Deliver via a CDN edge server that is geographically closest to the user.

ImageEngine improves web performance for every image on the page, including the largest. You can learn more about ImageEngine here, and also sign up for a free trial.

Best Practices: Preconnect

In addition to using an image CDN like ImageEngine, a few other best practices can improve LCP. Using the resource hints to provide a preconnect for your content can streamline the download process.

For example, putting the following link statement in the HTML will accelerate the download process. The link statement will make the browser connect to the third party as early as possible so that download can start sooner. ImageEngine’s optimizations make each image download smaller and faster, but preconnect save time in the connection phase.

Best Practices: Minimize Blocking JavaScript and CSS

When JavaScript or CSS is “blocking” it means that the browser needs to parse and execute CSS and JavaScript in order to paint the final state of the page in the viewport.

Any website today relies heavily on both JavaScript and CSS, which means that it is almost impossible to avoid some render blocking resources. On a general note: be careful with what kind of CSS and JavaScript is referenced inside the <head> element. Make sure that only the strictly necessary resources are loaded in <head>. The rest can be deferred or loaded asynchronously.

When looking to improve the LCP specifically, there are some practices worth looking into more deeply.

Inline Critical CSS

It is not an easy task, but if the browser can avoid making a request to get the CSS needed to render the critical part of the page – usually the “above the fold” part – the LCP is likely to occur earlier. Also you will avoid content shifting around and maybe even a Flash of Unstyled Content (FOUC).

The critical CSS — the CSS needed by the browser to set up the structure and important styles of the part of the page shown above the fold — should in-inlined. This inlined CSS may also refer to background images, which of course should also be served by an Image CDN.

Do Not Use JavaScript to (lazy) Load Images

Many modern browsers natively support lazy loading, without the use of JavaScript. Because images usually are heavily involved in the performance of LCP, it is best practice to leave image loading to the browser and avoid adding JavaScript in order to lazy load images.

Lazy loading driven by JavaScript will add additional latency if the browser first has to load and parse JavaScript, then wait for it to execute, and then render images. This practice will also break the pre-parser in the browser.

If an image CDN is used to optimize images, then the benefits of lazy loading become much smaller. Especially large hero images that are above the fold have a large impact on LCP and will not benefit from being lazy loaded with JavaScript. It is best not to make JavaScript a blocking issue for rendering images, but rather rely on the browser’s own ability to select which images should be lazy loaded.

 

[– This is a sponsored post on behalf of ImageEngine –]

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Source de l’article sur Webdesignerdepot

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5 Kotlin Features That Every Android App Developer Must Know

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Java is considered to be the heart of the Android operating system, and so, for every Android developer, there is hardly any alternative than Java. Well, at last, a superb alternative to Java has appeared with a lot of value packed within. Kotlin is a programming language that comes as a better and more effective alternative to Java for Android development.

At this moment even, the Android community is abuzz with the discussion on Kotlin. This is precisely why we are going to explain the five key features of Kotlin.

Source de l’article sur DZONE

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