- SEMrush.com / Moz.com / Ahrefs.com for SEO performance (find out for which keywords a site is ranking) and Backlinks performance. Moz is also used for Domain Authority metrics.
- Try BuzzSumo.com for Social Media Performance metrics.
- SimilarWeb.com offers data beyond search engine traffic, e.g. how much of the traffic comes from direct or referral sources.
- Use Google Analytics and Google Search Console for comparing data from external tools with client domain data from internal web analytics tools.