LLFJ - Lazy Load for Joomla! - Kubik-Rubik Joomla! Erweiterungen

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Name: Lazy Load for Joomla! (LLFJ)
Version: 6.0.0.1-PRO (Joomla! 6) / 5.2.3.1-PRO (Joomla! 5) / 4.3.0.0-PRO (Joomla! 4)
Typ: Plugin
Lizenz: GPLv3
Beschreibung: Lazy Load for Joomla! ist ein Plugin, um Bilder erst laden lassen, wenn sie benötigt werden. Bilder werden erst im sichtbaren Bereich geladen. Vorteil: Bandbreite wird gespart und die Seiten viel schneller geladen.
Download: LLFJ - Lazy Load for Joomla! Downloads

Bilder erst laden lassen, wenn sie benötigt werden - Plugin für Joomla!

Mit diesem Plugin werden Bilder erst geladen, wenn der Besucher zu den Bildern scrollt. Bilder, die nicht in den sichtbaren Bereich kommen, müssen nicht nachgeladen werden. Das erhöht die Ladegeschwindigkeit der Seiten und spart viel Bandbreite.

Wenn es Probleme bei der Darstellung in manchen Komponenten gibt, können diese in den Einstellungen ausgeschlossen werden. LLFJ wird in ausgeschlossenen Komponenten nicht ausgeführt und die Seiten werden ganz normal geladen.

Lazy Load Plugin von Mika Tuupola (jQuery) / LazyLoad script von Andrea Verlicchi (JavaScript).

Features

Bilder werden erst im sichtbaren Bereich nachgeladen
Unterstützte Nachladelösungen: Natives Laden auf Browser-Ebene für moderne Browser (nur Pro-Version) / JavaScript (nur Pro-Version) / jQuery
Schwellenwert, um Bilder vorzuladen - Eingabe in Pixeln
Bandbreite sparen
Ladegeschwindigkeit der Seiten erhöhen
Fade-In Effekt beim Nachladen
Kein zusätzliches, externes Framework nötig
Bilder ausschließen
Komponenten ausschließen
URLs ausschließen
Bots ausschließen
Im Joomla! Editor ausschließen
Auswahl umkehren - eingegeben Daten werden eingeschlossen, nicht ausgeschlossen

Installation

Das Plugin übers Backend installieren und unter Erweiterung - Plugins - System - Lazy Load aktivieren.

Es müssen keine weiteren Einstellungen vorgenommen werden, das Plugin wird automatisch im Frontend geladen. Der "Lazy Load" Effekt steht sofort zur Verfügung!

Falls es Probleme beim Laden der Bilder gibt, können bestimmte Bilder, Komponenten oder URLs ausgeschlossen werden.

Wenn nach der Aktivierung des Plugins überhaupt keine Bilder mehr geladen werden, bitte die Browserkonsole öffnen und prüfen, ob ein JavaScript-Fehler ausgelöst wird. Dies gilt nicht für das native lazy-Attribut aus der PRO-Version!

Changelog

+ = Hinzugefügt - ! = Entfernt - ^ = Geändert - # = Gefixt

Letzte Aktualisierung

Version 6.0.0.1-PRO - 2026-04-23

+ Enhanced Pro Security Token validation for unreachable licence servers – the validation now clearly distinguishes between an invalid token and a temporary connection problem, such as a timeout or network failure. Temporary network or server issues no longer lead to misleading invalid-token behaviour, making the validation process more robust and user-friendly
+ Added dedicated warning handling for licence server connection problems – if the validation server cannot be reached, EPB now shows a proper warning message instead of treating the situation like a failed licence validation.
# Fixed an issue with the option "Exclude images". Thanks to bdore85 for reporting it!

Version 5.2.3.1-PRO - 2026-04-23

# Fixed an issue with the option "Exclude images". Thanks to bdore85 for reporting it!

Version 5.2.3.0-PRO - 2025-10-09

+ General code maintenance and optimisations to ensure consistent quality and stability.

Version 5.2.2.0-PRO - 2025-06-14

+ Code improvement - Added named arguments for internal functions to improve code readability and flexibility. This allows parameters to be passed by name in any order without affecting functionality.
+ Code optimisations.
^ Updated custom field ProSecurityTokenField.

Version 5.2.1.0-PRO - 2025-04-04

^ Optimised "showon" logic in the settings form to show only available options for the selected lazy-loading method.
# Multiple replacements of identical img tags would create multiple noscript tags per replacement. Thanks to webman for reporting this issue!

Version 5.2.0.0-PRO - 2025-01-14

+ Increased technical requirements for Joomla! 5: Increasing Technical Requirements 2025 - Core & PHP for Joomla! Pro Extensions
+ Optimising code to meet new requirements can enhance its quality, performance, and security.
^ Updated Vanilla script to version 19.1.2

Version 5.1.0.0-PRO - 2024-05-27

+ Subscriber Interface: The plugin has been rewritten to utilise the subscriber interface, enhancing its integration and performance capabilities.
+ Improved Pro Security Token validation check. The Pro package contains a token file with an individual security token linked to the user account that is checked against the validation server for authenticity. If the file is missing or the token is invalid, you cannot edit the settings and use the extension. The Pro Security Token field has been extended to handle incorrect tokens and blocked accounts. If you encounter an error message related to the token, download the Pro version with your Pro subscription from the linked download page and install it again!
Attention: The Pro extension will not work correctly if the token file or custom field is missing or modified. Never edit or remove the files to ensure correct functionality.
^ Moved static files to the media folder.

Version 5.0.0.0-PRO - 2023-11-14

+ First Pro release for Joomla! 5.x based on LLFJ Pro version 4.2.0.0-PRO
+ The plugin "Behaviour - Backward Compatibility" is not required. The extension only uses supported classes in Joomla! 5.

Version 4.3.0.0-PRO - 2025-04-05

+ Increased technical requirements for Joomla! 4: Increasing Technical Requirements 2025 - Core & PHP for Joomla! Pro Extensions
+ Optimising code to meet new requirements can enhance its quality, performance, and security.
^ Updated Vanilla script to version 19.1.2
^ Optimised "showon" logic in the settings form to show only available options for the selected lazy-loading method.
# Multiple replacements of identical img tags would create multiple noscript tags per replacement. Thanks to webman for reporting this issue!

Version 4.2.1.0-PRO - 2024-07-30

Increased technical requirements for Joomla! 4: Increasing Technical Requirements 2024 - Core & PHP for Joomla! 4 Pro Extensions.
^ Updated the installation script to enable the uninstall process in higher core versions.

Version 4.2.0.0-PRO - 2023-10-12

+ Improved Installation Script: Updated the installation script to check for the highest compatible version of Joomla automatically! This feature aims to prevent issues that may arise from using incompatible core versions, thereby ensuring a smoother installation process.

Version 4.1.0.0-PRO - 2023-02-25

Increased technical requirements for Joomla! 4: Increasing Technical Requirements - Core & PHP for Joomla! 4 Pro Extensions.
+ Code optimisations.

Version 4.0.3.0-PRO - 2022-09-20

+ Added Pro Security Token validation check. The Pro package contains a token file with an individual security token linked to the user account and checked against the validation server for authenticity.
^ Multiple internal code optimisations.

Version 4.0.2.0-PRO - 2022-06-17

^ Updated Vanilla script to version 17.8.2
^ Updated custom field to bypass description bug in Joomla! 4.1.3.
^ Code optimisations

Version 4.0.1.0-PRO - 2021-11-10

+ Added the built-in Download Key Manager support to enter your Pro Update ID without installing the update helper plugin.
Important: Please copy your personal Pro Update ID using the second copy button in the Pro ID Manager and enter the key in System - Update - Update Sites - Select the entry of the Pro extension and enter the ID into the Download Key field.
^ Updated LazyLoad Vanilla script to version 17.5.0

Version 4.0.0.0-PRO - 2021-08-24

+ First Pro release for Joomla! 4.x based on LLFJ Pro version 3.6.2.0-PRO

Version 3.6.2.0-PRO - 2021-04-06

^ Added check to avoid duplicate native built-in lazy-loading attributes
^ Updated custom field
^ Changed the version number specification. The first number stands for the supported major Joomla! version. The following three numbers follow the Semantic Versioning Specification (SemVer), as it used to be previously.

Version 3.6.1-PRO - 2021-02-02

^ Maintenance release
^ Updated LazyLoad Vanilla script to version 17.3.0
^ Code optimisations

Version 3.6.0-PRO - 2020-10-27

+ Browser-level image lazy-loading - Added the native built-in lazy-loading attribute supported by most modern browsers. Further information about this functionality: Browser-level image lazy-loading for the web
^ Updated LazyLoad Vanilla script to version 17.1.3
^ Code optimisations

Version 3.5.3-PRO - 2020-06-03

+ Optimise for slow connections - With this option, the loading of images that exited the viewport is cancelled, to reserve bandwidth for the new images that entered the viewport. Only for the LazyLoad Vanilla script!
^ Updated LazyLoad Vanilla script to version 16.1.0
^ Updated language files and custom field

Version 3.5.2-PRO - 2020-04-24

First release with increased technical requirements: Increasing Technical Requirements - Joomla! Core & PHP for Pro & Free Extensions
+ LazyLoad - Plain JavaScript - LazyLoad by Andrea Verlicchi is a lightweight and flexible script that speeds up Joomla! by deferring the loading of the below-the-fold images to when they will enter the viewport. It's written in plain "vanilla" JavaScript, it leverages the IntersectionObserver API, it supports responsive images and enables native lazy loading. Thanks to Michael K. for the suggestion of the implementation!

Version 3.5.1-PRO - 2019-08-14

+ Include/Exclude Image Classes - Limit the processing to particular CSS image classes (class="..."). You can define as many CSS classes as required!

Version 3.5.0-PRO - 2019-04-14

+ First Pro release based on LLFJ version 3.4.0
+ Updated jQuery script to the latest version (2.0.0)
^ Removed Mootools script

Version 3.5.0-FREE - 2020-06-06

First release with increased technical requirements: Increasing Technical Requirements - Joomla! Core & PHP for Pro & Free Extensions
+ Maintenance release - Based on 3.5.3-PRO
^ Updated language files and custom fields
^ Code optimisations

Version 3.4.1 - 2019-07-22

+ Added Custom Field - Pro Button
^ Updated Custom Fields
^ Updated Project Page URL
^ Code Optimizations

Version 3.4.0 - 2016-06-13

+ New option Toggle selection - Exclude by class - Entered image class is excluded, not included. Thanks for suggestion to Jens K.

Version 3.3.0 - 2015-08-01

+ Donation Code Validation Process - Improved the validation process with a new server (HTTPS request) plus an independent, separated fallback server (HTTP request).

https://check.kubik-rubik.de/
http://check.kubik-rubik.eu/

+ New Download Server - Download packages are located independently of the project website on a new download server.

https://downloads.kubik-rubik.de/

Version 3.2.0 - 2015-06-18

+ Effect (jQuery script only) - By default images are loaded with a nice fading effect. If you just want to show the images without this effect, then select the option 'Show'.
^ Image class recognition - The class does not have to be exact any more. So if you specify lazy as the image class value, then combinations like class="thumbnail lazy" will also be recognized.

Version 3.1.0 - 2015-06-16

+ Threshold in pixels (jQuery script only) - By default images are loaded when they appear on the screen. If you want images to load earlier use threshold parameter. Setting threshold to 200 causes image to load 200 pixels before it appears on viewport. (Description from the project website of the jQuery script.)
^ Semantic versioning - Switched to semantic versioning, see http://semver.org/ for more details. Please update manually since the core update server functionality will not recognize the new version!
^ Set option "Noscript Fallback" to true by default

Version 3-9 - 2015-02-15

+ Noscript Fallback - With this option the images are additionally loaded in the <noscript> tag so that the images are displayed even though JavaScript is deactivated in the browser!
+ Update Server - Added the Joomla! core functionality for the update checks
^ Updated Donation Code field - Uses the HTTP API for the requests and calls the check script via HTTPS
^ Links in the language files - Updated outdated links to the JED (Joomla! Extensions Directory)
! Removed Version Check field

Version 3-8 - 2014-11-19

+ New feature: Image class - Limit the processing to a particular image class. If you enter for example lazy in the appropriate field, then only images with class="lazy" will be considered in the loading process!

<img class="lazy" src="/image.jpg" alt="description" />

Version 3-7 - 2014-10-02

# Fixed URL handling - Special treatment of image paths on website without base path and external image URLs - Thank you Scott R. for reporting it

Version 3-6 - 2014-09-30

+ Added new jQuery script - Added a new native Lazy Loading jQuery script to get rid of the Mootools Framework requirement. Script from http://www.appelsiini.net/projects/lazyload - Thanks to Mika Tuupola
^ Optimized file structure - Moved files (JS and Image) to the corresponding folders, not in root of the plugin
# Fixed display for Joomla! >= 3.3.4 - Due to a change in the image processing, the plugin needs to add the base path to the images with a relative URL

Version 3-5 - 2014-07-10

+ Exclude replacement in JavaScript template output - Some components (e.g. CComment by compojoom) load the template output via JavaScript. In this loading process all placeholders are replaced with the correct data obtained by an Ajax request. These template blocks are now excluded from the replacement process to avoid blank images.

Version 3-4 - 2014-07-04

+ New option: Exclude template views - With this option you can exclude certain template views, e.g. component. This is useful in some cases, like the print output which uses the view tmpl=component to only show the content of the component.

Version 3-3 - 2013-12-27

+ Added a version requirements check - Since many users do not read the documentation and the changelog, I have implemented a requirements checker with warning message output to avoid errors on unsupported Joomla! versions.

Version 3-2 - 2013-12-24