A2 Optimized WP


This update fixes an important security issue. Please upgrade immediately

A2 Optimized is designed to make it quick and easy to speed up and secure your website by installing and configuring several well known, stable plugins with the click of a few buttons.

Have you ever tried to configure W3 Total cache and got lost in the mess of configuration pages?

A2 Optimized has broken it down into the most valuable optimizations and will automatically configure W3 Total Cache for what works best in most shared hosting environments.

Free Optimizations

Caching with W3 Total Cache:

  • Enable Page, Object and Database caching with W3 Total cache in one click.
  • Page Caching stores full copies of pages on the disk so that php code and database queries can be skipped by the web server.
  • Object Caching stores commonly used elements such as menus / widgets and forms on disk or in memory to speed up page rendering.
  • Database cache stores copies of common database queries on disk or in memcory to speed up page rendering.

Minify HTML Pages:

  • Auto Configure W3 Total Cache to remove excess white space and comments from html pages to compress their size.
  • This provides for minor imporvements in page load time.

Minify CSS Files:

  • Auto Configure W3 Total Cache to condense CSS files into non human-readable compressed files.
  • Combines multiple css files into a single download.
  • Can provide significant speed imporvements for page loads.

Minify JS Files:

  • Auto Configure W3 Total Cache to condense JavaScript files into non human-readable compressed files.
  • Combines multiple js files into a single download.
  • Can provide significant speed imporvements for page loads.

Gzip Compression:

  • Turns on gzip compression using W3 Total Cache.
  • Ensures that files are compressed before transfering them.
  • Can provide significant speed imporvements for page loads.
  • Reduces bandwidth required to serve web pages.

Deny Direct Access to Configuration Files and Comment Form:

  • Enables WordPress hardening rules in .htaccess to prevent browser access to certain files.
  • Prevents bots from submitting to comment forms.
  • Note: Turn this off if you use systems that post to the comment form without visiting the page.

Lock Editing of Plugins and Themes from the WP Admin:

  • Turns off the file editor in the wp-admin.
  • Prevents plugins and themes from being tampered with from the wp-admin.

A2 Hosting Exclusive Optimizations

These one-click optimizations are only available while hosted at A2 Hosting.

Login URL Change:

  • Move the login page from the default wp-login.php to a random URL.
  • Prevents bots from automatically brute-force attacking wp-login.php

reCAPTCHA on comments and login:

  • provides google reCAPTCHA on both the Login form and comments.
  • Prevents bots from automatically brute-force attacking wp-login.php
  • Prevents bots from automatically spamming comments.

Compress Images on Upload:

  • Enables and configures EWWW Image Optimizer.
  • Compresses images that are uploaded to save bandwidth.
  • Improves page load times: especially on sites with many images.

Turbo Web Hosting:

  • Take advantage of A2 Hosting’s Turbo Web Hosting platform.
  • Faster serving of static files.
  • Pre-compiled .htaccess files on the web server for imporved performance.
  • PHP OpCode cache enabled by default
  • Custom php engine that is faster than Fast-CGI and FPM

Memcached Database and Object Cache:

  • Database and Object cache in memory instead of on disk.
  • Secure and Faster Memcached using Unix socket files.
  • Significant improvement in page load times, especially on pages that can not use full page cache such as wp-admin.


  • A2 Optimized Optimizations Page
  • A2 Optimized Warnings Page
  • A2 Optimized Advanced Optimizations Page
  • About A2 Optimized Page


  1. Upload a2-optimized into 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. 管理者メニューの’A2 Optimized’をクリックします
  4. ボタンをクリックして最適化を有効にします
  5. A2 Optimizedがサイトを遅くしている可能性があることを検出したという警告をチェックしてください。
  6. あなたのサイトを遅くしている可能性のあるプラグインを識別するのに役立つ高度な最適化をチェックしてください。


A2 Optimizedはどのようにサイトを高速化しますか

A2 Optimizedは、ボタンを数クリックするだけでW3 Total Cacheをインストールして設定します。

A2 Optimizedはすべてのサイトを高速化しますか

A2 Optimizedは大抵のサイトをスピードアップできます。 ただし、すべてのプラグインがW3 Total Cacheと互換性があるわけではありません。

If your site is slower after enabling caching in A2 Optimized, talk to a developer about finding better solutions for the plugins that you are using.

A2 OptimizedとWordFenceを併用できますか

A2 OptimizedはWordFenceのほとんどの機能と互換性がありますが、WordFenceのキャッシュとログ記録を無効にする必要があります。

WP Super CacheよりもW3 Total Cacheを使う理由

W3 Total Cacheは、あらゆる種類のキャッシュを処理する唯一のプラグインです。 頻繁に使用されるデータベースクエリ、オブジェクト、およびページをキャッシュします。 また、Memcachedをキャッシュのストレージエンジンとして使用することもできます。

どのホストでもA2 Optimizedを使用できますか

はい。 A2 OptimizedはWordPressをサポートするすべてのホストで動作します。 はい。 A2 OptimizedはWordPressをサポートするすべてのホスト上で動作します。 ただしA2 Hostingは、A2 Hostingサーバーでホストされている場合にのみサイトを高速化するためこれらのツールを提供します。


I don't recommend to install this plugin for caching features. After activating and setting up the plugin the loading time of any page will increase up to minimum 10 seconds (even for the backend). Before that my site was loading within a few milliseconds maximum one second. Don't install this shit!
The speed of my websites doubled even tripled! Great Work! Thanks to A2 Hosting
A2 is horrible when it comes to supporting this garbage plugin. It's only an upsell for the "optimized" service. plugin broke my site with "header already sent" errors.
This plugin broke our CiviCRM cron script as well as a mailing list subscribe widget. It may have made a minor improvement to our desktop load time but had a negative effect on our mobile load time per Google PageSpeed Insights.
Thank you for your plugin. Didn't have any problem so far. Everything work as described in listing.


A2 Optimized WP 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。


“A2 Optimized WP” 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。


  • Adjustments to Cloudflare detection

  • Fixed compatibility issue with X Theme

  • Added feature to regenerate wp-config salts

  • Added helpful information on extra plugins installed along with A2 Optimized on A2 Hosting accounts

  • Added option to block unauthorized XML-RPC calls

  • Added option to dequeue WooCommerce cart fragment calls

  • Wordfence is no longer marked as an incompatible plugin

  • Changed code to reduce notices for users with debug enabled

  • Removed P3 Profiler from list of optional plugins

  • Changed protect config files to an optional optimization

  • Fixed error with KB search

  • reCaptcha for comments enabled for mangaged hosting

  • Emails site admin if login URL changes


  • Settings page for custom reCaptcha options

  • Fixed issue with some plugins causing slowdowns on dashboard screen

  • Fixed issue with getting current user for some operations
  • Removed incorrect KB link

  • Clearer information when incompatible plugins are detected
  • Fixed issue with gzipping being enabled inadvertantly while changing other settings

  • Clearer information regarding W3 Total Cache upgrade
  • Fixed issue where sites installed in subdirectories may not function as expected


  • Updated reCAPTCHA to API v2
  • Better support and triage for unsupported versions of W3 Total Cache
  • Better support for mobile and tablet screen sizes on our optimizations page

  • Added plugin update notices to ensure users are aware of any important update details

  • Additional check for compatible W3TC
  • Added check to see if your server is already has compression enabled


  • Enable SSL caching by default


  • Revert use of PHP short arrays


  • Removed Clef and tested against WordPress 4.8


  • Added dmatteson as a plugin author


  • added namespace class to css to prevent collision with other plugins


  • minor bug fixes
  • check for PHP version >= 5.3


  • Move from SaaS to Full GPL