Google Analytics - This tool allows you to track website traffic, visitor behavior, and conversions.

SEMrush - SEMrush is a popular tool for SEO and PPC research. It allows you to analyze your competition and identify opportunities to improve your online visibility.

Ahrefs - Similar to SEMrush, Ahrefs is a powerful tool for SEO research, particularly for analyzing backlinks.

Hootsuite - Hootsuite is a social media management platform that allows you to manage multiple social media accounts, schedule posts, and track social media metrics.

Buzzsumo - Buzzsumo helps you identify popular content and influencers in your industry, as well as track social media engagement for specific topics.

HubSpot - HubSpot is a popular inbound marketing platform that includes tools for email marketing, lead generation, and customer relationship management.

Hotjar - Hotjar is a user behavior analytics tool that allows you to see how visitors interact with your website and identify areas for improvement.

Marketo - Marketo is a marketing automation platform that includes tools for lead management, email marketing, and social media marketing.

Moz - Moz is a popular SEO tool that includes features for keyword research, site audits, and backlink analysis.

Google Trends - Google Trends allows you to track search volume and interest over time for specific keywords, topics, and regions.