jonkemp

Removes unwanted tags from your WordPress header.
The function wp_head; found in the header.php template file adds unnecessary tags to your WordPress template. These tags are the RSD, or Really Simple Discovery, link, the Windows Live Writer Link and the WordPress version number. This plugin will stop all 3 tags from being automatically added to your WordPress header.

WordPress Head Cleaner

Removes unwanted tags from your WordPress header.

iliasvlachos1

This plugin is usefull to website owners who share links from their website on Facebook. If you debug your website URL with the <a href="https://developers.facebook.com/tools/debug/" rel="nofollow ugc">Facebook Sharing Debugger</a> you might see a warning with the following message.
Missing Properties: The following required properties are missing: fb:app_id
This plugin inserts the required meta property with the given app_id. You have to create a facebook app to get the app_id!
To create a facebook app, visit <a href="https://developers.facebook.com/" rel="nofollow ugc">Facebook Developers</a>
<ol>
<li>Register or Login to your account.</li>
<li>Click My Apps, then click Create to create a new App</li>
<li>When the app is created and you are in the app dashboard click settings and select Basic</li>
</ol>
That is the App ID you need to copy.
On your WordPress Admin:
<ol>
<li>Download and activate the plugin</li>
<li>Go to Tools -> Fix missing FB app_id.</li>
<li>Paste the app_id you copied in the given field.</li>
<li>Click Save</li>
</ol>

Fix missing property app_id

This plugin inserts the fb:app_id meta property to fix the Facebook Sharing Debugger error «The following required properties are missing: fb:app_id»

WordPress Head Cleaner vs Fix missing property app_id