1. Set Generator Tag
This plugin allows you to modify the default Joomla CMS generator meta tag and make it whatever you want. Using this plugin means you will not have to change templates or the core Joomla files, and your changes will remain even if a new version of the CMS is downloaded since the changes reside in the Set Generator plugin, not Joomla itself.
As the name states, this Joomla SEO plugin is meant to be simple, and its function is to take the starting portion of a page’s text content and apply it to the meta description at the head of the page. Since search engines will often use meta descriptions for SERPS, it is crucial that they have relevant content.
3. SEO Pagination
This easy-to-use plugin lets you give every page on your Web site a unique title, which is great if you have multiple categories, and can help give each page greater strength in overall SEO rankings.
The JoomSEF plugin lets you rewrite your Joomla URLs so that they are more search engine friendly (SEF). These custom URLs can make for a better browsing experience for users and can lead to higher rankings from search engines.
5. J!Redirect 301
This Joomla SEO plugin allows you to easily create 301 redirects so that the only page indexed by search engines will be your main page. All other access requests will be directed to your main site, and 301 is the only type of redirect considered to be search engine friendly.
6. SiteVerify Plugin
SiteVerify adds a simple way to insert HTML Meta tags so that your site can be verified with Google, Live and Yahoo.
7. Website Name
This compact plugin gives you the ability to display your Web site name on the front end, letting you choose if you want it before or after the page title.
This does what it says – generates SEO keywords and description automatically from text and content.
9. Auto Backlinks
A simple plugin, this automatically pings high-ranking pages for auto backlinks directly to your site.
10. Unicode Slugs SEF
This is a great plugin allowing you to add special characters, accents and capitals in URLs that Google and other sites have no problem searching for.