Plugins on the list:

The best anti-spam protection to block spam comments and spam in a contact form. The most trusted antispam solution for WordPress and WooCommerce.

Categories: General

Generate multiple types of sitemaps to improve SEO and get your website indexed quickly.

Categories: General

Search Engine (SEO) & Performance Optimization (WPO) via caching. Integrated caching: CDN, Page, Minify, Object, Fragment, Database support.

Categories: General

Redirection

By John Godley

Manage 301 redirects, track 404 errors, and improve your site. No knowledge of Apache or Nginx required.

Categories: General

Check posts, pages & all content for broken links to improve SEO. Get notified when bad links are found.

Categories: General

Adds Secure Image CAPTCHA on the forms for comments, login, registration, lost password, BuddyPress, bbPress, wpForo, and WooCommerce checkout.

Categories: General

Manages your WordPress database.

Categories: General

Tags, Categories and WordPress terms are easy with TaxoPress. Add a Tag or Category to Pages, manage your WooCommerce Categories and Tags and more.

Categories: General

Scans your WordPress installation for security vulnerabilities.

Categories: General

NewStatPress (Statpress plugin fork) is a real-time plugin to manage the visits' statistics about your blog (without external web analytics).

Categories: General

Displays a custom welcome message to new visitors and another to return visitors.

Categories: General

Duplicator clone plugin can duplicate, backup website, clone website or migrate WordPress website from one hosting place to another for FREE!

Categories: General

Provides a simple contact form on your wordpress website.

Categories: General

The NS Cloner saves TONS of time by cloning existing sites in a multisite network to a completely new site in a few seconds.

Categories: General

Seo report on your dashboard of all your statistics ranking. Pagerank, Alexa Rank, Backlinks...

Categories: General

Adds a social bookmarking menu to your posts/pages/index. Based on Josh Jones' SexyBookmarks plugin: http://eight7teen.com/sexy-bookmarks

Categories: General

Not just an another Clickbank Storefront plugin - Designed to excel with the world's favorite eCommerce plugin - WooCommerce !

Categories: General