Some imates/videos are not compatible without lazy loading. WordPress is leading the Lazy loading of images/videos when it comes to sharing media and incorporating media files into the site design. I used Lazy Load. What is Lazy Loading and How Does it Work?

Lazy loading of images/videos -

When your script is parser blocking, the web browser pauses DOM construction when encountering your script. In layman's terms: your viewers get a shitty browsing experience because your page pauses loading text, containers, etc. for a bit. Why re-invent the wheel?

There are a number of JavaScript libraries which combine the mentioned techniques. Wouldn't it be awesome if there was a native lazy loading API? Quick heads-up: there's a video below the snippet.

This video starts lazy loading when the video is visible. We adapted this snippet from Google's Developers Blog. The following snippet could be used to achieve lazy loading through the LazyLoad library.

The following snippet uses the Intersection Observer API to achieve lazy loading for iframes. We'll use YouTube as our sample case. Another quick heads-up: there's an iframe below the snippet.

This iframe starts lazy loading when the iframe is visible. We adapted the JavaScript from Chris' blog to load the iframe on-demand. This snippet puts the iframe in a container, to make the iframe responsive to a aspect ratio. With JavaScript video players, the same principles as HTML videos apply: load the video when the video player becomes visible.

Additionally, you want to asynchronously load their JavaScript libraries. This codepen. io snippet uses the Intersection Observer API, the JavaScript API of the video player and async JavaScript to achieve lazy loading with the video player below.

Developers can use the Intersection Observer API to lazy load videos in order to optimize the critical rendering path. You should leverage lazy loading when it makes sense for your use-case.

If you're building a video streaming website, you probably want to preload some videos. If you're doing livestreaming, it might not even make sense to preload data, because loaded data will be outdated when you hit play.

Stay up to date! src sets the video source. preload preloads data. If your src is configured, set preload to none to avoid preloading. autoplay starts playing the video automatically, which means the video download starts.

poster sets a placeholder image until video playback starts. This placeholder image must also be downloaded, so you also want to lazy load the poster if possible. The following properties and methods are related to lazy loading: video.

load loads some initial video data. play starts playback. Intersection Observer API The Intersection Observer API allows developers to programmatically detect the visibility of a DOM element — and also a video element or iframe. querySelector ' scrollArea' , rootMargin: '0px', threshold: 1.

querySelector ' listItem' ; observer. observe target ; As the snippet indicates, you can observe the visibility of a targeted DOM element. Use scroll , resize , or orientationchange event handlers Async JavaScript You can make your JavaScript files load asynchronously by using the async attribute.

Lazy Loading Libraries Why re-invent the wheel? LazyLoad uses the Intersection Observer API and can be used to lazy load videos, images and iframes.

With that change made, and the default settings applied, the site performed very well. Pingdom provides a snapshot of content size, and a quick comparison provides the answer.

The image footprint is tiny at just over kb. The script, HTML, CSS , and other content sizes are nearly identical. However, the image size is 1. As I mentioned previously, WordPress automatically supplies a variety of image sizes and the browser selects and renders the smallest possible version based on the size at which the image will be rendered on-screen.

A3 Lazy Load leaves default WordPress behavior intact and the result is that a much smaller image file is delivered. The 2nd option is Lazy Load , which is a free plugin created by the team over at WP Rocket. It is currently active on over 10, installs with a 4 out of 5-star rating.

If you are looking for a simple WordPress lazy load option with a good speed, this is a great choice. This plugin works on thumbnails , all images in a post content or in a widget text, avatars and smilies. The big advantage to this plugin is there are no JavaScript libraries such as jQuery being used and the script weighs less than 10 KB.

There are no options to configure, simply install the plugin and lazy loading will simply work. At this time, native lazy loading is available in Chromium-based browsers like Chrome and Brave, as well as Firefox.

Google has developed the Native Lazyload plugin to help make this process easier. After activating the plugin, WordPress will automatically insert the loading attribute into your img and iframe tags. While some of the above plugins do this as well, this is a great solution for just video content.

There are two things you need to double check:. Alt text is extremely helpful for Google Images — if you want your images to rank there.

With Chrome and Firefox support, and Safari support in the future, browser-native lazy loading should be all you need to lazy load your images and iframes.

Lazy loading is just one technique you can use to optimize your WordPress website. However, it has the potential to have a profound impact on site speed if you use a lot of images and videos. Jon is the Chief Operating Officer at Kinsta and is involved with Kinsta's sales, customer service, and technical support teams on a daily basis.

Jon's a family man. So when he isn't feverishly tapping the keys of his laptop he's usually helping one of his kids fix a bike or setting up Netflix for an impatient preschooler. Is it safe to use? Hey Resham!

Both are actively updated and work well. Agree these are by far and wide the best two options, depending on what you need.

This post definitely needs a slight revision, looking forward to seeing that. Thanks for the post. a3 Lazy Load sadly performed rather badly as it minimized my images badly.

At your suggestions, I did a search for lazy load plugins from my WordPress dashboard and I was given a JetPack suggestion. I installed it. Then I removed the plugin and deleted my cache and everything was ok again. I used Lazy Load.

It does not like posts with too many comments. Tried using this plugin twice, and same thing happened each time. I am currently using a3 Lazy Load. I have not heard that any of the plugins accomplish that.

Do you have any suggestions? Thanks in advance. Any ideas would be awesome. great post! Hi, thanks for the great reviews. Is there a better tool which will keep my mobile thumb nails smaller AND regular sized? Hi, it is really nice topic to improve the speed of the WP blog, especially a blog with lots of images.

But I recently heard that WordPress is planning to add native support for lazy load which will be based on newer standard of browsers. It is true? By submitting this form: You agree to the processing of the submitted personal data in accordance with Kinsta's Privacy Policy , including the transfer of data to the United States.

You also agree to receive information from Kinsta related to our services, events, and promotions. You may unsubscribe at any time by following the instructions in the communications received. Home Resource Center Blog Image Optimization How to Implement WordPress Lazy Load on Images and Videos How to Implement WordPress Lazy Load on Images and Videos Jon Penland , July 11, What is Lazy Loading and How Does it Work?

WordPress Lazy Load Improving Page Load Speed With Lazy Loading Plugins Lazy Loading Impact on SEO What Is Lazy Loading and How Does It Work? Lazy loading works like this: The browser builds the web page DOM without downloading images and preloading videos.

JavaScript is used to determine which images to download and which videos to preload based on the content that is initially visible when the page loads.

LazyLoad images/vdieos the best free lazy load plugin for Kiwi fruit planting tips to Lazy loading of images/videos load images, videos, and iframes on WordPress. You can looading load Lazzy in Lazy loading of images/videos content or widget text, plus thumbnails, avatars, and smilies. Lazy loading is a key performance technique to make your site faster. Lazy loading your images on WordPress will help you achieve a better PageSpeed Insights score for three main reasons:. Take a look at our complete list of reasons why you should use lazy loading. Images/videeos Wagner Images/videoa LinkedIn Homepage Rachel Andrew X GitHub Mastodon Homepage. In this post you will find out loqding to lazy-load Insulin resistance and insulin resistance strategies types of image. With Lazy loading of images/videos images we have three options for lazy loading, which may be used in combination for the best compatibility across browsers:. Chrome and Firefox both support lazy loading with the loading attribute. A value of lazy tells the browser to load the image immediately if it is in the viewport, and to fetch other images when the user scrolls near them.

Video

Lazy loading is too easy now