Async JavaScript

説明

Eliminate Render-blocking Javascript in above-the-fold content with Async Javascript.

Render-blocking Javascript prevents above-the-fold content on your page from being rendered until the javascript has finished loading. This can impact on your page speed and ultimately your ranking within search engines. It can also impact your users experience.

Async JavaScript gives you full control of which scripts to add a ‘async’ or ‘defer’ attribute to or to exclude to help increase the performance of your WordPress website.

インストール

Installation is very straightforward:

  1. Upload the zip-file and unzip it in the /wp-content/plugins/ directory
  2. WordPress の「プラグイン」メニューからプラグインを有効化してください
  3. Go to Settings > Async JavaScript menu to load settings page

FAQ

Installation Instructions

Installation is very straightforward:

  1. Upload the zip-file and unzip it in the /wp-content/plugins/ directory
  2. WordPress の「プラグイン」メニューからプラグインを有効化してください
  3. Go to Settings > Async JavaScript menu to load settings page
Which browsers support the ‘async’ and ‘defer’ attributes

The ‘async’ attribute is new in HTML5. It is supported by the following browsers:

  • Chrome
  • IE 10 and higher
  • Firefox 3.6 and higher
  • Safari
  • Opera
Where can I get help?

Async JavaScript is supported via the wordpress.org support forum.

Do you offer professional support/ configuration services?

We offer premium services for Async JavaScript and full web performance optimization services at https://autoptimize.com/

What about CSS?

As the name implies, Async JavaScript is built to enhance JavaScript loading only. Async JavaScript does not have any impact on CSS.

We recommend using the awesome Autoptimize plugin alongside Async JavaScript for CSS optimization.

I want out, how should I remove Async JavaScript?
  • Disable the plugin
  • Delete the plugin

評価

Proceed with caution

This caused elements on my homepage to stop showing up.

I gather this could be rectified by excluding the relevant JS or whatnot. However, if as in my case that sounds confusing, you might want to test this plugin extensively prior to implementation.

Высший класс! PageSpeed 99/99

Спасибо автору! Простая настройка, в админке. Выставил JQuery на async, остальные скрипты на defer и добился результатов PageSpeed 99/99. 1 бал потерял из-за счетчиков Метрики, да и фиг с ним. Плагин высший пилотаж!

35件のレビューをすべて表示

貢献者と開発者

Async JavaScript はオープンソースソフトウェアです。以下の人々がこのプラグインに貢献しています。

貢献者

“Async JavaScript” をあなたの言語に翻訳しましょう。

開発に興味がありますか ?

コードを閲覧するか、SVN リポジトリをチェックするか、開発ログRSS で購読してみてください。

変更履歴

2.18.03.15

  • bugfix: only load asyncjs’ JS & CSS on own settings page as reported by Marat Petrov
  • bugfix: check if jQuery chosen is correctly loaded before using it (based on same report, thanks Marat!)
  • update jQuery Chosen lib
  • small readme tweaks

2.18.03.10

  • ASync JS is now maintained by Frank Goossens (Optimizing Matters), thanks for the great job done David!
  • Moved all Pro features into the standard version.
  • Some code refactoring
  • Made strings ready for translations

2.17.11.15

  • MOD: Added User Agent to GTMetrix requests

2.17.11.03

  • MOD: Check for GTMetrix class existance prior to including class

2.17.10.18

  • FIX: Issue converting array for plugin & theme exclusions

2.17.09.30

  • FIX: Sanitise all $_GET and all $_POST
  • FIX: Add nonce to ajax calls

2.17.06.13

  • MOD: Dashboard Widget and Notices only available to Administrators

2.17.05.08

  • NEW: Added quick settings buttons to allow common settings to be quickly applied
  • NEW: Added current version info to help page

2.17.05.07

  • FIX: Some installs not saving plugin / theme exclusions due to theme incompatibility

2.17.05.06

  • MOD/FIX: On some WordPress installs is_plugin_active function being called too early. Moved is_plugin_active into dedicated function called via admin_init as per codex: https://codex.wordpress.org/Function_Reference/is_plugin_active

2.17.05.05

  • FIX: Incorrect textarea identifier preventing exclusion save

2.17.05.04

  • FIX: Resolve early loading of plugin causing fatal error due to function not available yet
  • FIX: CSS / JS not loading

2.17.05.03

  • MOD: Add text to advise running Wizard is not mandatory

2.17.05.01

  • massive Massive MASSIVE rewrite of Async JavaScript!!!
  • Now includes a setup Wizard, Status page, Settings page and a help page.
  • Communicates directly with GTmetrix (account required)
  • Automaticall transfers existing settings from Async JavaScript to Async JavaScript