SEMrush is a all-in-one digital marketing platform with SEO, advertising, content, and competitive research. It handles keyword research, competitor analysis, ppc, and content marketing, and it's best suited for digital marketing teams wanting seo, ppc, and content tools. It has been around since 2008, giving it a 18-year head start in building out integrations and refining the product.

The free plan is free with limited searches — enough for most people to evaluate whether it fits. Paid plans start at $129.95/mo, which unlocks the full feature set. It works well for mid-size teams that need more structure than a basic tool but less overhead than enterprise platforms.