SpyFu

SpyFu is a competitor research tool for both organic and paid search. Searching a rival's domain shows the keywords it ranks for, the ads it has tested and the backlinks behind its rankings, and the lists can be downloaded. A newer site audit scans for more than 100 technical and on-page issues and lets the user approve fixes and publish them. Rank tracking follows keyword positions, traffic, clicks, impressions and ad performance, and a SpyFu GPT feeds its search data into ChatGPT. Agencies can produce custom branded SEO reports for clients, and a documented API supports automated exports, with PDF exports for sharing results. A tutorials library and a knowledge base are available, and visitors can try it free. On the paid side it tracks impression share on key keyword groups and suggests expansion keywords.