Keyword & Phrase Suggestions

If you're struggling with coming up with keywords or alternatives to a keyword list, then try using Ubersuggest. This tool provides a long list of keyword and phrase ideas, and puts them in alphabetical order. Allowing you to easily sort and find ideas that will help you with optimization.

http://ubersuggest.org/

Use This Chrome Extension to Receive Vital Information for Any Webpage

If you're looking for information regarding any variety of web pages, then this PageRank Status extension provides you an easy way to obtain this information. Using it, you can get PageRank, AlexaRank, GEO IP location, backlinks, and more, all within your browser.
https://chrome.google.com/webstore/detail/pagerank-status/hbdkkfheckcdppiaiabobmennhijkknn?hl=en

Preview Your Site's Search Engine Listing

The information you display for search engines is vital in creating a first impression, and getting people to click on the URL to your site on the results page. With this Search Engine Listing Preview, you can see how your site will be displayed in the SERPs. Providing you with options to change what you want and see how it will be reflected in the SERPs.

http://www.quickregister.net/seotools/tools/se-listing-preview/

Keyword suggestion tool

How do you know what keywords would work best for your website? What is the focus of your site: news, videos, recipes, or all of them? If you need keyword suggestions try out Ubersuggest which allows you to choose a category to get suggested keywords. This tool makes use of Google Suggest and other keyword suggestion services. Give it a try now!

http://ubersuggest.org/

Keep Track Of Your Content's Keyword Density

If you update content on your site constantly, then you should always be aware of the frequency of the keywords you use. This Keyword Density Tool will instantly calculate the five most frequently used keywords in an article.

http://www.mikes-marketing-tools.com/keyworddensitytool.php

Crawl Your Site With This SEO Simulator, Diagnose Problems & Improve Your Site's Optimization

The Screaming Frog is a SEO Spider that you can download and use that will crawl your site for links, images, CSS, and present them all as a search engine spider. It will show you any SEO issues it finds, allowing you to make key improvements for your optimization efforts.

Download link: http://www.screamingfrog.co.uk/products/seo-spider/ScreamingFrogSEOSpider-2.11.exe