BuiltWith - Find out the technology behind websites
WordStream - WordStream offers a suite of products to help companies with their SEO and SEM initiatives.
Kompyte - Track & analyze competitors in real time.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Competera - Competera is a price tracking tool for performance-oriented eCommerce retail and brands of all sizes worldwide.
Marin Software - Optimize your Search, Social & Display ads across channels and devices. Marin Software, the leading cross-channel performance advertising platform.