FolioVision

There’s one problem with Gravatars. They are very slow to load. Each page with comments on them makes one call per comment to the Gravatar server. While a single call takes only a 100ms, on a page with hundreds of comments, we are talking about major slowdowns. Page loads can take 20 seconds and more.
This plugin solves this problem by:
<ul>
<li>
caching gravatars with WordPress cron job..
</li>
<li>
caching gravatars on comment submission
</li>
<li>
maintaining a single copy of the default gravatar instead of downloading it again and again for all the email addresses with no gravatar associtated
</li>
</ul>
<a href="http://foliovision.com/seo-tools/wordpress/plugins/fv-gravatar-cache/installation" rel="nofollow ugc">Installation guide</a>
<a href="http://foliovision.com/seo-tools/wordpress/plugins/fv-gravatar-cache" rel="nofollow ugc">Support and more information</a>

FV Gravatar Cache

I deactivated plugin but still contains elements in Database

Database Junk

Speeds up your website by making sure the gravatars are stored on your website and not loading from the gravatar server.

Will Stocks

José Miguel

Optimum Gravatar Cache allows you to create a local cache with optimized copies of gravatars. The optimization is accomplished by resizing the avatars to the sizes used on your site, in addition to optimizing the images internally. Optimizations are performed to minimize the size of each avatar served by the plugin.
The plugin uses WordPress CRON to perform heavier tasks. Avatars are resized in the background. Avatars are optimized internally in the background. Except in certain cases where it is necessary to resize the avatars in the page request.
The plugin handles all your site’s gravatar as long as the wordpress get_avatar() function or buddypress bp_member_avatar() function is used. Works with plugins, themes, etc.
The plugin allows you to customize the avatar by default. This avatar is served whenever the user / visitor does not have a custom gravatar. This greatly reduces the number of requests made by your page, improving the user experience. Besides allowing to frame the avatar by default with the theme of your site.
The plugin, after being configured and activated, starts by serving gravatar for all. And it begins to create the cache dynamically in the background with the sizes being collected by the requests, as well as those configured on the plug-in page. When the avatar already exists in the cache, the plugin serves the avatar in cache. The plugin periodically checks to see if the user updated their gravatar on gravatar.com if yes is updated locally. This way, keeping an updated cache.
The plugin intends the following:
<ul>
<li>Work with the gravatars locally, cache;</li>
<li>Reduce the number of requests per page, thus reducing the total time required to load all files. This is achieved because most users do not have a custom gravatar, and for those, only one file needs to be downloaded;</li>
<li>Optimize all avatars by reducing their size and transfer time again.</li>
</ul>
Please if you find any bugs of any kind please contact me so that I can solve it as soon as possible.
<h3>Languages</h3>
<ul>
<li>English en_GB (@willstockstech)</li>
<li>Portuguese pt_PT (@jomisica)</li>
</ul>
Help translate this plugin into your language
<h3>Dependencies</h3>
This plugin depends on the following PHP modules:
<ul>
<li>php-gd or php-imagick (So that it can resize the avatars)</li>
<li>php-curl (So that it can communicate with the gravatar using the same connection to update several avatars)</li>
</ul>
The plugin also depends on WordPress CRON to be able to solve the heaviest tasks in the background.

Optimum Gravatar Cache

It stores optimized copies of gravatars locally, reducing the total number of requests. This will speed up site loading and consequently improve the u …

FV Gravatar Cache vs Optimum Gravatar Cache