SpyFu is a competitor intelligence and research tool that searches your competitors' marketing formula including ranking keywords, Google Ads, marketing spending, and more. It is easy to use - users just need to search the domains they want to check, and SpyFu will give them all their marketing strategies. Users can also use SpyFu to complete deep keyword, backlinks, SEO, and PPC research.

Spyfu is used by trusted companies like Microsoft, Salesforce, Adobe, and Amazon. Its pricing starts at $33/month for its basic plan to $79/month for professionals with more exclusive features. The professional plan also gives API access and provides over 10 years of critical competitor historical data.

SpyFu is a great tool for marketers as it gives instant data on what competitors are bidding for in both organic search and paid search. It has a user-friendly interface made for both small to mid-size businesses and enterprises.