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Lazy Load by WP Rocket

Oleh WP Rocket

Deskripsi

Lazy Load by WP Rocket displays images and/or iframes on a page only when they are visible to the user. This reduces the number of HTTP requests mechanism and improves the loading time.

This plugin works on thumbnails, all images in a post content or in a widget text, avatars, smilies and iframes. No JavaScript library such as jQuery is used and the script weight is less than 10KB.

You can also replace Youtube iframes by a preview thumbnail to further speed up the loading time of your website.

Dependencies

Lazyload script: https://github.com/verlok/lazyload

Related Plugins

  • Imagify: Best Image Optimizer to speed up your website with lighter images.
  • WP Rocket: Best caching plugin to speed-up your WordPress website.
  • Heartbeat Control by WP Rocket: Heartbeat Control by WP Rocket: Best plugin to control the WordPress Heartbeat API and reduce CPU usage.

Pemasangan

  1. Upload the complete rocket-lazy-load folder to the /wp-content/plugins/ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress

PSD (FAQ)

How can I deactivate Lazy Load on some pages?

You can use the do_rocket_lazyload filter.

Here is an example to put in functions.php files that disable lazyload on posts:

add_action( 'wp', 'deactivate_rocket_lazyload_on_single' );
function deactivate_rocket_lazyload_on_single() {
    if ( is_single() ) {
        add_filter( 'do_rocket_lazyload', '__return_false' );
    }
}
How can I deactivate Lazy Load on some images?

Simply add a data-no-lazy="1" property in you img or iframe tag.

You can also use the filters rocket_lazyload_excluded_attributes or rocket_lazyload_excluded_src to exclude specific patterns.

For iframes, the filter is rocket_lazyload_iframe_excluded_patterns.

How can I change the threshold to trigger the load?

You can use the rocket_lazyload_threshold filter.

Code sample:

function rocket_lazyload_custom_threshold( $threshold ) {
    return 100;
}
add_filter( 'rocket_lazyload_threshold', 'rocket_lazyload_custom_threshold' );
I use plugin X and my images don’t show anymore

Some plugins are not compatible without lazy loading. Please open a support thread, and we will see how we can solve the issue by excluding lazy loading for this plugin.

How can I lazyload a background-image?

The plugin will automatically lazyload background-images set with a style attribute to a div element:

<div style="background-image: url(image.jpg);">

You can also apply it manually. The element you want to apply lazyload on must have this specific markup:

<div class="rocket-lazyload" data-bg="url(../img/image.jpg)"></div>

The element must have the class rocket-lazyload, and a data-bg attribute, which value is the CSS url for the image.

Tinjauan

Works Great

This plugin is great, it uses the Google SEO recommended way of lazy loading images. If you have problems with this make sure to disable rocketloader in Cloudflare.

Works as it should, thank you!

I first tried Lazy Load Optimizer but didn't get much of a difference with Google PageSpeed. Disabled it and tried Lazy Load by WP Rocket and it worked perfectly!! Thank you!

Best lazy load plugin and real support

I've used many other lazy load plugins through the years. Some update and cause problems, others have stopped being updated and supported. I had an issue with a recent update, posted it in the support forum and was quickly notified they will correct it in the next update, and they updaye/improve regularly. They spend time and effort making sure this free plugin works for us. I always look at the help forum of any prospective plugin to find people like this that actively take care of any problems, before using it.

Great Plugin & Support

Really like this plugin. It's lightweight and works well. The support team have also been very responsive to fix bugs and address other issues, which gives me a lot of faith in the Rocket team and their products!
Baca semua 74 tinjauan

Kontributor & Pengembang

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Log Perubahan

2.1.4

  • Regression fix: Correctly exclude scripts from lazyload again

2.1.3

  • Bugfix: Ignore content inside noscript tags to prevent modifying them and causing some display issues

2.1.2

  • Enhancement: Update lazyload script to the latest version
  • Enhancement: Add a way to lazyload the Youtube thumbnail image
  • Enhancement: Add width and height attributes to the Youtube thumbnail image depending on the resolution
  • Enhancement: Disable polyfill for intersectionObserver by default, added a way to activate it instead
  • Enhancement: Add data-cfasync=”false” to the lazyload script tag
  • Enhancement: Prevent lazyload on the Oxygen Builder page editor
  • Bugfix: Wrap no JS CSS in noscript tag and remove the no-js identifier

2.1.1

  • Bugfix: Correctly apply lazyload on picture elements
  • Bugfix: Prevent double loading of an image when an img element inside a picture element only has a srcset attribute and no src attribute

2.1

  • Enhancement: Update lazyload script to the latest version
  • Enhancement: Apply lazyload on picture elements found on the page
  • Enhancement: Apply lazyload on div elements with a background image found on the page. See FAQ for more info.

2.0.4

  • Enhancement: Add filter for iframe lazyload pattern exclusion
  • Enhancement: Auto-exclude soliloquy-image pattern from lazyload
  • Bugfix: Prevent issue when an image/iframe is duplicated on the same page
  • Bugfix: Prevent W3C validation error for the SVG placeholder

2.0.3.2

  • Bugfix: Correctly ignore inline scripts with line breaks inside

2.0.3.1

  • Bugfix: Correct an issue preventing lazyload from working

2.0.3

  • Bugfix: Prevent incorrect display if JavaScript is disabled
  • Bugfix: Don’t apply lazyload on Divi/Extra/Beaver Builder Editor pages
  • Bugfix: Use the correct URL for each iframe when multiple iframes are on the same page
  • Bugfix: Ignore content inside inline script tags to prevent applying lazyload in it

2.0.2

  • Bugfix: Fix an error in the compatibility for the AMP plugin

2.0.1

  • Bugfix: Prevent a fatal error on case sensitive operating systems

2.0

  • Enhancement: Lazyload is now applied on the template_redirect hook, which should allow the plugin to apply the optimization on more images and encountering less conflicts at the same time
  • Enhancement: Specifically target with the lazyload script images/iframes elements with a data-lazy-src attribute
  • Enhancement: Update lazyload script to the latest version
  • Enhancement: Possibility to apply lazyload on background-images with a specific markup, see FAQ
  • Enhancement: Use a svg image as placeholder instead of a base64 gif
  • Bugfix: Only use MutationObserver if available in the browser
  • Bugfix: When using the Youtube thumbnail option, correctly format the Youtube query if the video URL is encoded
  • Bugfix: Improve iframe matching to prevent unexpected results
  • Bugfix: Update CSS for the Youtube thumbnail option to prevent issue with the Gutenberg embeds block

1.4.9

  • Enhancement: Update lazyload script to the latest available version
  • Enhancement: Use lazy-sizes to prevent W3C validation error when sizes is defined but srcset is not
  • Enhancement: Parse images or iframes only if the element is selected to be lazyloaded in the options
  • Fix: Prevent warning for lazyload+v in Google Search Console
  • Fix: Prevent PHP Notice with WooCommerce for product images

1.4.8

  • Notice: Minimum WordPress version required is now 4.7
  • Enhancement: Update lazyload script version
  • Enhancement: Remove placeholder image to improve perceived loading time
  • Enhancement: Compatibility with Youtube privacy URL
  • Enhancement: Update play image to match Youtube logo
  • Enhancement: Support Youtube URL parameters
  • Enhancement: Lazyload images displayed with wp_get_attachment_image(). /!\ no fallback if JavaScript is disabled
  • Fix: Use the correct size set in srcset for the lazyloaded image
  • Fix: Prevent Youtube thumbnail replacement on playlists
  • Fix: Prevent iframe lazyload on AMP pages
  • Fix: Correct text domain for translations (thanks @ Chantal Coolsma)

1.4.7

  • Fix compatibility with infinite scroll
  • Prevent lazyload on masterSlider images

1.4.6

  • Correctly include version 8.5.2 of lazyload script
  • Prevent 404 error on lazyload script if URL contains “-v”

1.4.5

  • Rename Setting Page Name in WP Menu
  • New Product Banner in Settings Page
  • Conditionally load a different version of the script depending on browser support of IntersectionObserver
  • Fix a bug where images initially hidden are not correctly displayed when coming into view (slider, tabs, accordion)

1.4.4

  • Admin Redesign

1.4.3

  • Plugin is compatible again with PHP < 5.4

1.4.2

  • Update lazyload script to bring back compatibility with IE9/10

1.4.1

  • Fix bug caused by a too aggressive cleanup

1.4

  • New option: replace Youtube videos by thumbnail. This option can improve your loading time a lot, especially if you have multiple videos on the same page

1.3.3

  • 2017-09-16
  • Prevent scripts and styles being removed during html parsing

1.3.2

  • 2017-09-12
  • Fix images not displaying in certain conditions because image attributes exclusion was not working correctly

1.3.1

  • 2017-09-07
  • Don’t apply lazyload on Divi slider

1.3

  • 2017-09-01
  • Improve HTML parsing of images and iframes to be faster and more efficient
  • Make the lazyload compatible with fitVids for iframes
  • Don’t apply lazyload on AMP pages (compatible with AMP plugin from Automattic)
  • Use about:blank as default iframe placeholder to prevent warning in browser console
  • Don’t apply lazyload on upPrev thumbnail

1.2.1

  • 2017-08-22
  • Fix missing lazyload script
  • Don’t lazyload for images in REST API requests

1.2

  • 2017-08-22
  • Update lazyload script to latest version
  • Change the way the script is loaded

1.1.1

  • 2017-02-13
  • Bug fix: Remove use of short tag to prevent 500 error on some installations

1.1

  • 2017-02-12
  • New
    • JS library updated
    • Support for iFrame
    • Support for srcset and sizes
    • New options page

1.0.4

  • 2015-04-28
  • Bug Fix: Resolved a conflict between LazyLoad & Emoji since WordPress 4.2

1.0.3

  • 2015-01-08
  • Bug Fix: Don’t apply LazyLoad on captcha from Really Simple CAPTCHA to prevent conflicts.

1.0.2

  • 2014-12-28
  • Improvement: Add « rocket_lazyload_html » filter to manage the output that will be printed.

1.0.1.1

  • 2014-07-25
  • Fix stupid error with new regex in 1.0.1

1.0.1

  • 2014-07-16
  • Bug Fix: when a IMG tag or content (widget or post) contains the string “data-no-lazy”, all IMG tags were ignored instead of one.
  • Security fix: The preg_replace() could lead to a XSS vuln, thanks to Alexander Concha
  • Code compliance

1.0

  • 2014-01-01
  • Initial release.

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