Mahdeep

<p>Deep Semantic HTML Checker is a lightweight WordPress plugin that automatically optimizes heading structure for better SEO. It converts problematic headings to semantic HTML without modifying your theme files.</p>
<h4>Features</h4>
<ul>
<li>Convert comment section H2 tags to divs</li>
<li>Convert comment form H3 tags to divs  </li>
<li>Fix archive page headings</li>
<li>Remove duplicate H1 tags</li>
<li>Convert widget title headings</li>
<li>Fix footer headings</li>
<li>Fix mobile menu headings</li>
<li>Fix ad box headings</li>
<li>Individual on/off toggle for each feature</li>
<li>Compatible with all themes</li>
<li>Compatible with caching plugins</li>
<li>RTL support</li>
</ul>
<h4>Benefits</h4>
<ul>
<li>Improved SEO</li>
<li>Better semantic structure</li>
<li>No theme modifications needed</li>
<li>Universal theme compatibility</li>
<li>Lightweight and optimized</li>
</ul>


Deep Semantic HTML Checker

Automatically fix common SEO issues related to heading structure in WordPress.

Aaron T. Grogg

<p>This plug-in limits the classes WordPress added to navigation menus to only those desired by the Theme owner,<br />
adds a unique ID to each <code>li</code> and removes any empty <code>class</code> attributes.</p>
<p>More about this plug-in can be found at:<br />
http://aarontgrogg.com/2011/09/28/wordpress-plug-in-navigation-menu-ids-classes/</p>
<p>Please let me know if you have any questions/suggestions/thoughts,</p>
<p>Atg</p>


Navigation Menu IDs & Classes

At least some aspect of this plugin seems like it should be available in WordPress core. 
I understand the rationale for menu items having menu-item-ID, but it's pretty practical for them to have the slug in there, as this plugin provides.
Suggestion for plugin feature - offer option for slug prefix.
Like if I have a menu item "updates" I may use the class "updates" elsewhere, but class "menu-item-updates" would target the menu-item for sure. Of course I can currently use double selectors.



1 for inclusion in core

To reduce the extraneous WordPress classes and add unique IDs to navigation menus.

Deep Semantic HTML Checker vs Navigation Menu IDs & Classes