Fast, light-weight, full-featured plugin for great looking shares on all social sites - no matter how your content is shared or re-shared!
Display your content in the best possible way on Facebook, Google+, Twitter, Pinterest, etc. - no matter how your webpage is shared!
Easily add and manage custom meta tags to various parts of your site or on individual posts, such as Yahoo and Google verification tags.
The easiest way embed code in the head or footer, site-wide or on a per-page/post basis.
This SEO Plugin creates meta descriptions for single posts and pages, meta keywords for single Posts.
Adds to twitter cards meta tags to head with logic based on post formats
Boost your wordpress SEO: Full SEO features Meta Tags, webmaster tools settings, Social AuthorShip for Facebook, Twitter and Google Plus and XML sitem
Simple header and footer code injector
A Free yet feature rich metadata plugin that can optimize your web site for more efficient indexing and easier sharing of your content.
Check Meta Title, Meta Keywords(s) and Meta Description on posts and pages and consult with a seo expert.
Easily add your scripts to the WordPress website's head or/and footer section. This is a must have tool for authors and website's owners.
Simple SEO is a quick way to add HTML meta tags to your site and pages using WP integrated custom fields feature.
Output existing HeadSpace2 data without the original plugin. Deactivate HeadSpace2 (no longer maintained) without impactacting legacy content.
Convert WordPress's query-based shortlinks to pretty permalinks that are cacheable. http://example.com/?p=123 becomes http://example.com/p/123/.
Add meta tags such as title,description,keywords,index in posts, pages, categories & everywhere on your site.
Remove the version of WordPress in HTML tag generator, css and js params (?ver=), Feeds.
WP Basic Elements is a WordPress plugin that simplifys your WP Admin and cleans your markup in the code for faster loadtime.
Places meta tags in your blog's header, so a suitable image and description show, when crossposting to Facebook or generating a Twitter Card.
Search engine optimization made easy: make your content more visible in search engine results.
The Open Graph Protocol enables any web page to become a rich object in a social graph. This plugin renders meta tags within an extension framework.
Auto SEO is a quick, simple way to add title, meta keywords, and meta descriptions to your site all at one from a single page.
Add Facebook Open Graph meta tags to your posts so that image and other details are shown properly when your content is shared on Facebook.
This plugin allows you to add extra scripts to the header and footer of your blog by hooking into wp_head and wp_footer.
A very simple SEO plugin
Facebook Like Lock for WordPress. Locks your content and user can unlock by clicking on like button.
Edit SEO tags (or any custom field) from the All Posts page. Auto-detects SEO plugins & themes.
Adds a little box for you to specify if a page should auto refresh after a given number of seconds.
The Kerstner Foundation (Kerstner.org) offers FREE Web Hosting to nonprofits. To qualify you must install and activate this plugin.
Like Gate allows you to reveal some hidden/secret content when the user likes the article. Therefore increasing the likeness of your articles.
With this plugin you can control the text which will be shown as description on the search engine results pages.