WordPress Website Analysis: Before & After ImageEngine

WordPress is by far the world’s hottest CMS. Not solely does it dominate the CMS market with a 64% market share, however it additionally powers 39.6% of all web sites. It has taken the web by storm by democratizing the web for all. Now, anybody can construct, handle, and host a profitable website without having a university diploma or coding experience.

However, whereas WordPress is nice at managing many technical features, it nonetheless can’t do every part for you. Built totally on PHP, there are sometimes considerations relating to how performant WordPress is. And, with efficiency impacting every part from bounce charges to website positioning rankings to conversions, it’s one thing that needs to be in your radar too.

If you don’t understand it but, pictures are one of many most important causes of slow-loading web sites. In current years, WordPress has stepped up its efforts to try to assist customers with picture optimization out-of-the-box.

Still, as we’ll present, it’s not a complete resolution, and there may be nonetheless lots you are able to do to ship higher experiences in your WordPress website by means of picture optimization.


What is WordPress Image Optimization? Why is it Important?

Simply put, picture optimization is something you do to make pictures load sooner in your website pages. Almost all web sites that use pictures can profit from some type of picture optimization, even these utilizing WordPress.


Well, efficiency is a massively important issue in terms of the competitiveness of your website right this moment.

Google has additionally made efficiency an more and more necessary issue in terms of website positioning rankings. In truth, efficiency is a direct rating sign that carries important weight.

Google’s Page Experience Update that went dwell in 2021 has been the largest transfer in that path but. Soon, Google may even use visible indicators in SERP outcomes to differentiate high-performing web sites from the remainder.

In Google’s personal phrases, “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, pictures are the most important contributor to web page weight. Google has additionally singled out picture optimization particularly because the issue with probably the most untapped potential for efficiency optimization.

This downside isn’t going away quickly. According to information by the HTTP Archive, there are roughly 967.5 KB bytes of picture information on desktop web pages and 866.3 KB of picture information on cellular pages. This is a rise of 16.1% and 38.8%, respectively, during the last 5 years.

Thanks to fashionable e-commerce instruments like Woocommerce, it’s estimated that as much as 28% of all on-line gross sales occur on WordPress web sites.

And don’t overlook, pictures are each a key a part of conveying data to the person and integral to the design of your website. If they take considerably longer to load than your textual content, for instance, it would negatively impression the person expertise in a wide range of methods.

In abstract, optimized pictures assist your WordPress website by:

  • Improving person satisfaction.
  • Improving numerous site visitors metrics, like bounce charges, time-on-page, and so on.
  • Boosting your website positioning rankings.
  • Contributing to increased conversions (and gross sales).


How Does Image Optimization in WordPress Work?

WordPress is so fashionable as a result of it’s a CMS (content material administration system) that permits anybody to construct, design, and handle a website with none coding or superior technical expertise. Advanced options might be put in with only a few clicks, due to plugins, and also you hardly ever have to the touch the code behind your website until you need to make some distinctive modifications.

In quick, utilizing a CMS like WordPress shields you from lots of the day-to-day technicalities of working a website.

WordPress Image Optimization: What It Can Do

As we talked about, one of many most important causes WordPress is so fashionable is as a result of it takes care of lots of the technical features of working a website. With that in thoughts, many suppose that WordPress must also mechanically maintain picture optimization with out them having to get entangled in any respect.

Unfortunately, that’s probably not the case.

True, WordPress does supply some built-in picture optimization. Whenever you add a picture to WordPress, it presently compresses the standard to about 82% of the unique (since v4.5).

In v4.4, WordPress additionally launched responsive picture syntax utilizing the srcset attribute. This creates 4 breakpoints for every picture you add in line with the default WordPress picture sizes:

  • 150px sq. for thumbnails
  • 300px width for medium pictures
  • 768px max-width for medium_large pictures
  • 1024px max-width for giant pictures.

Here you’ll be able to see an instance of the particular responsive syntax code generated by WordPress:

Depending on the display dimension of the machine from which a person visits your webpage, WordPress will let the browser choose probably the most appropriately sized picture. For instance, the smallest model for cellular shows or the most important for 4K Retina screens, like these of a Mac.

While this will likely appear spectacular, it’s solely a fraction of what might be achieved utilizing a correct picture optimization resolution, as we’ll present later.

Lastly, WordPress carried out HTML native default lazy loading for all pictures beginning with model 5.5.

So, briefly, WordPress presents the next picture optimization capabilities baked-in:

  • Quality compression (restricted)
  • Responsive syntax (as much as 4 breakpoints)
  • Lazy loading

WordPress Image Optimization: What it Cannot Do

There are different points many have with each the implementation of picture compression and responsive syntax because it’s utilized by WordPress. This results in some customers even purposefully deactivating WordPress’ built-in picture optimization to allow them to totally take management of it themselves.

Here are among the explanation why:

  • WordPress makes use of a really fundamental type of high quality compression. It doesn’t use superior applied sciences like AI and machine studying algorithms to compress pictures whereas sustaining most visible high quality. It’s additionally lossy compression, so the standard is misplaced for good. You can clearly see the distinction between an unique HD picture and the compressed model created by WordPress.
  • WordPress solely compresses most pictures by as much as 20%, whereas superior picture optimization instruments can cut back all picture sizes intelligently by as much as 80%.
  • Responsive syntax can present important efficiency enhancements over merely importing a single HD picture to be served on all gadgets and screens. However, it’s nonetheless solely restricted to a set variety of breakpoints (usually 3 or 4). Since it’s not dynamic, a complete spectrum of attainable picture sizes is just not created or used.
  • Responsive syntax code is just not scalable and may rapidly result in code that’s bloated, messy, and arduous to learn.
  • WordPress doesn’t speed up picture supply by mechanically caching and serving them through a worldwide CDN, though this may be completed utilizing different instruments.

Another necessary optimization function that WordPress doesn’t have is auto-conversion to next-gen picture file codecs. Different picture codecs supply completely different efficiency advantages on completely different gadgets. Some codecs additionally allow increased ranges of compression whereas sustaining visible constancy.

Next-gen codecs like WebP, AVIF, and JPEG-2000 are thought-about to be probably the most optimum codecs on suitable gadgets. For instance, till not too long ago, WebP can be the optimum alternative on Chrome browsers, whereas JPEG-4000 can be optimum on Safari browsers.

However, WordPress will merely serve pictures in the identical codecs by which they have been initially uploaded to all guests.


How to Measure the Image Performance of a WordPress Website?

As the undisputed king of search engines like google and yahoo, we’ll base most of our efficiency metrics on pointers established by Google.

Along with its numerous efficiency updates, Google has launched quite a lot of pointers for builders in addition to the instruments to check and enhance their web sites in line with stated pointers.

Google launched Core Web Vitals as the first metrics for measuring a web web page’s efficiency and its impact on the person expertise. Thus, Core Web Vitals are known as “user-centric performance metrics.” They are an try to provide builders a testable and quantifiable option to measure an elusive and summary idea resembling “user experience.”

Combined with quite a lot of different elements, Core Web Vitals represent a serious a part of the general web page expertise sign:

You can discover a full introduction to Core Web Vitals right here. However, they presently encompass three most important metrics:

  • LCP (Largest Contentful Paint): The time it takes the most important above-the-fold component in your web page to load. This is often a full-sized picture or hero part.
  • FID (First Input Delay): The delay from the second a person first interacts with a component on the web page till it turns into responsive.
  • CLS (Cumulative Layout Shift): The visible stability with which the weather on a web page load.

Here is an illustration of how these metrics are scored:

While these are the three most necessary metrics to optimize, they aren’t the one ones. Google nonetheless measures different metrics just like the FCP (First Contentful Paint), SI (Speed Index), in addition to the TTFB (Time to First Byte), TBT (Total Blocking Time), and TTI (Time to Interactive).

A variety of these metrics are immediately affected by the pictures used in your web pages. For instance, LCP, FCP, and SI are direct indicators of how briskly the content material of your web web page hundreds and relies on the general byte dimension of the web page. However, it will probably additionally not directly have an effect on FID by preserving the primary thread busy with rendering massive quantities of picture content material or the perceived CLS by delaying the time it takes massive pictures to load.

These metrics apply to all web sites, whether or not they’re custom-made or constructed utilizing a CMS like WordPress.

When utilizing instruments like Lighthouse or PageSpeed Insights, you’ll additionally get scored primarily based on different flags Google deems necessary. Some of them are particular to photographs, resembling correctly sizing pictures and serving pictures in next-gen codecs.

If you solely use built-in WordPress picture optimization, you’ll get flagged for the next alternatives for enchancment:

Some of the audits it would cross, nonetheless, are deferring offscreen pictures (lazy loading) and effectively coding pictures (on account of compression):


A Better Way to Optimize WordPress Images: ImageEngine

Billions of internet sites are all vying for prime actual property on Google SERPs, in addition to the eye of an more and more fussy internet-using public. Every inch issues in terms of giving your website a aggressive benefit.

So, how will you remove these remaining efficiency flags and ship extremely optimized pictures that may preserve each your guests and Google completely happy?

Sure, you possibly can manually optimize pictures utilizing software program like PhotoShop or GIMP. However, that may take you hours for every new batch of pictures. Plus, you continue to received’t profit from any automated adaptive optimization.

A extra affordable resolution in right this moment’s fast-paced local weather is to make use of a device developed particularly for optimum picture optimization: a picture CDN like ImageEngine.

ImageEngine is an automatic, cloud-based picture optimization service utilizing machine detection in addition to clever picture compression utilizing the facility of AI and machine studying. It can cut back picture payloads by as much as 80% whereas sustaining visible high quality and accelerating supply world wide due to its CDN with geographically dispersed PoPs.

Why is ImageEngine Image Optimization Better Than WordPress?

When making a head-to-head comparability, listed below are the explanation why ImageEngine can ship higher efficiency:

  • Device Detection: ImageEngine options built-in machine detection. This means it picks up what machine a customer to your website is utilizing and tailors its optimization technique to what’s greatest for that particular machine.
  • Client hints: By supporting shopper hints, ImageEngine has entry to much more data relating to the machine and browser to make higher optimization choices.
  • Next-gen codecs: Based on optimum settings, ImageEngine mechanically converts and serves pictures in next-gen codecs like WebP, AVIF, JPEG2000, and MP4 (for GIFs).
  • Save information header: When a Chrome person has save-data mode enabled, ImageEngine will mechanically compress pictures extra aggressively to save lots of on information switch.
  • CDN with devoted edge servers: ImageEngine will mechanically cache and serve your optimized picture belongings utilizing its international CDN. Each edge server has machine consciousness built-in to deliver down latency and speed up supply. You may also select to prioritize particular areas.

So, the important thing differentiator is that ImageEngine can tailor optimizing pictures for what’s optimum for every of your guests. ImageEngine is especially good at serving cellular guests due to WURFL machine detection, which may dynamically resize pictures in line with most gadgets and display sizes in use right this moment. As of now, this can be a fully distinctive functionality that none of its opponents supply.

It permits for much higher and extra fine-tuned optimization than WordPress’ across-the-board method to compression and responsive syntax.

If you need, you possibly can flip off WordPress responsive syntax and compression, and you’d nonetheless expertise a efficiency improve utilizing ImageEngine. However, ImageEngine additionally performs good with responsive syntax, so it’s not fully vital until you need to serve the highest-fidelity/low-byte-size pictures attainable.

How Does ImageEngine Work with WordPress?

The course of ImageEngine makes use of to combine with WordPress might be damaged down into a number of straightforward steps:

  • Sign up for an ImageEngine account: ImageEngine presents three pricing plans relying on the size and options you want in addition to a no-commitment 30-day free trial.
  • Specify your picture origin: This tells ImageEngine the place to seek out the unique variations of your pictures. For a WordPress website, you’ll be able to simply use your area, e.g., https://mywordpresswebsite.com. ImageEngine will then mechanically pull the pictures you’ve uploaded to your WordPress website.

  • Copy the Delivery Address: After you create an account and specify your picture origin, ImageEngine will offer you a Delivery Address. A Delivery Address is your personal distinctive deal with that might be utilized in your tags to level again to the ImageEngine service. Delivery Addresses could also be on a shared area (imgeng.in) or personalized utilizing a site that you just personal. A Delivery Address usually appears one thing like {random_string}.cdn.imgeng.in. If your pictures are uploaded to the default WordPress folder /wp-content/uploads/, you’ll be able to entry your optimized pictures from ImageEngine just by altering your website area. For instance, by typing {imageengine_domain}.cdn.imgeng.in/wp-content/uploads/myimage.jpg into your browser, you’ll see the optimized model of that picture. Just press the copy button subsequent to the Delivery Address and use it within the subsequent step configuring the plugin.

  • Install the ImageEngine Optimizer CDN plugin: The plugin is totally free and might be put in identical to every other plugin from the WordPress repository.
  • Configure and allow ImageEngine Plugin in WordPress: Just go to the plugin beneath “ImageEngine” in the primary navigation menu. Then, copy and paste in your ImageEngine “Delivery Address,” tick the “Enabled” checkbox, and click on “Save Changes” to allow ImageEngine:

Now, all ImageEngine principally does is change your WordPress website area in picture URLs along with your new ImageEngine Delivery Address. This makes it a easy, light-weight, and non-interfering plugin that works nice with most different plugins and themes. It additionally doesn’t add pointless complexity or weight to your WordPress website pages.


ImageEngine vs Built-in WordPress Image Optimization

So, now let’s get all the way down to enterprise by testing the efficiency enchancment you’ll be able to count on from utilizing ImageEngine to optimize your picture belongings.

To do that take a look at, we arrange a fundamental WordPress web page containing quite a lot of high-quality pictures. I then used PageSpeed Insights and the Lighthouse Performance Calculator to get the efficiency scores earlier than and after utilizing ImageEngine.

Importantly, we performed this take a look at from a mobile-first perspective. Not solely has cellular web site visitors surpassed desktop site visitors globally, however Google themselves have dedicated to mobile-first indexing in consequence.

Here is a PageSpeed rating utilizing the Lighthouse calculator for WordPress with no picture optimization:

As we will see, each Core Web Vitals and different necessary metrics have been flagged as “needs improvement.” Specifically, the LCP, FCP, and TBT. In this case, each the LCP and FCP have been a high-res featured picture on the prime of the web page.

If we go to the alternatives for enchancment highlighted by PageSpeed, we see the place the problems come from. We might nonetheless save as a lot as 4.2s of loading time by correctly resizing pictures and an extra 2.7s by serving them in next-gen codecs:

So, now let’s see how a lot ImageEngine can enhance on that.

The identical take a look at run on my WordPress website utilizing ImageEngine obtained the next outcomes:

As you’ll be able to see, we now have a 100 PageSpeed rating. I saved roughly 2.5s on the SI (~86%) in addition to roughly 1.7s on the LCP (~60%). There was additionally a slight enchancment within the FCP.

Not solely will you get pleasure from a stronger web page expertise sign from Google, however this represents a tangible distinction to guests relating to the velocity with which your website hundreds. That distinction will result in decrease bounce charges, elevated person satisfaction, and extra conversions.

There was additionally a 53% total discount within the complete picture payload. This is spectacular, contemplating that it’s on prime of WordPress’ built-in compression and responsive syntax.



So, as somebody with a WordPress website, what can you’re taking away from this?

Well, to start with, WordPress does function some fundamental picture optimization. And whereas not excellent, it ought to enable you to supply affordable ranges of efficiency, even for those who use loads of picture content material.

However, the caveat is that WordPress applies aggressive, across-the-board compression, which is able to result in a noticeable discount in visible high quality. If you utilize WordPress for any sort of website the place premium high quality pictures are necessary, this can be a concern — for instance, as a pictures portfolio, exhibition, or picture market like Shutterstock.

By utilizing ImageEngine, you’ll be able to cut back picture payloads and speed up supply even additional with out compromising too harshly on visible high quality. What’s extra, ImageEngine’s adaptive picture optimization expertise will present better enhancements to extra of your guests, no matter what machine(s) they use to browse the web.

Whether or not you continue to need to use WordPress’ built-in optimizations, ImageEngine will ship important enhancements to your person expertise, site visitors metrics, and even conversions.

Plus, true to the spirit of WordPress, it’s very simple to arrange with none superior configuration. Just join ImageEngine in 3 straightforward steps, set up the plugin, combine ImageEngine by copy/pasting your picture area, and also you’re good to go.


[ This is a sponsored post on behalf of ImageEngine ]

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