Free Keyword Analyzer for Search Engine Optimization

1st page google ranking
This tool allows to use keyword density analysis to find search terms your competitors are using on their pages, where each term is used and weights of every term in various types of page content. It also allows to select the keywords of your interest and compare their stats against your page.
URL of a competitive page to analyze (site A):
URL of your page to compare against (site B), optional:
analyze

New in SEO: LSI Optimization

LSI optimization essentially consists of using a set of keywords that have semantic relevance with one another. For example, if an article is written for the keyword "dog training", it is important to consider using words that are related with it as well, such as "behavior", "obedience", "technique", "protection", "puppy", "aggressive", "barking", etc. LSI indexing has changed the way that search engines provide results to those who are searching for information on a given topic. So the websites that make it to the top spots on Google now must use both keyword density optimization (mostly to avoid keyword stuffing penalties) and LSI optimization by placing related terms with the webpage content.

Keyword Density Checker

The best way to improve your website's LSI-friendliness is by looking at the current top-ranked websites for the keyword or keyphrase you're trying to rank on.