SpyFu is an online software platform that helps businesses and entrepreneurs track, analyze, and improve their online presence. It provides detailed information on competitors' keywords, backlinks, and ad campaigns, as well as insights into how to use SEO to outrank them. It also allows users to search for keywords and domains to see which websites are ranking for them and how much they are spending on ads. By gaining insights into what their competitors are doing, users can create more effective strategies to gain a competitive edge.
Both tools are great. But, Serpstat is better for the US, as its database is bigger and better. Also, I am a big fan of Serpstat's Tree View feature. I use it to find the pages to get to the first page of SEP.
SpyFu is OK, but Serpstat has bigger and clearer databases, it also has a lot of "tasty" features like URK vs. URL analysis, awesome filters, etc.
You have to log in to check the seo of the competition.
Discontinued official website not available.
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Actually, Sersptat beats SpyFu as an SEO tool by any measurable metric. It includes many more regions and has 5 different and useful modules, such as rank tracker, backlink tool and site audit, all for the price LESS than SpyFu, which only shows US data. I mean, it's a decent tool, but only if you research within this market.