SpyFu’s keyword competition feature is among the best ones on the market. The tool allows to see any domain’s positions in Google: every keyword the domain bought on AdWords, organic rank and ad variation in the last 9 years. Pretty cool, right?

The “Keyword Kombat” feature uncovers keywords that your competitor’s rank for. It is designed like a battle (well, Mortal Kombat comes to mind :)) between 3 domains – your one and 2 of your competitors. As a result you’ll have an idea about how to override all of them and opportunity to fix your weaknesses.

SpyFu also has a ton of SEO-focused features and allows you to easily connect with site owners by finding contacts – social media, email, phone, address – you can’t find anywhere else.

Features and use cases:

• Increase traffic to your site
• Drive clicks to your SEO and AdWords campaigns
• Track your keyword rankings on Google, Bing and Yahoo
• Make connections, build partnerships and get sales leads using reliable contact info
• Outrank your competitors by tapping into your competitors’ keyword strategies
• Find profitable keywords – discover the competitions most lucrative keywords that you’re missing
• Get to the top position: move your keywords in the top 50 results onto the first page
• Eliminate bad keywords: weed out money wasting keywords using negative match suggestions
• Find the best ad copy – skip the testing by leveraging your competitors’ data
• Sell SEO services and branded reports