Moz Pro

The web’s most popular SEO and social monitoring software.

Majestic SEO

Find out how all the websites on the internet link to each other with the largest Link Intelligence database on the planet.

Ahrefs Site Explorer

A strong tool for checking links. Huge index of links, data updates every 15 minutes, friendly interface and rich data analysis.

Wordtracker

Reveal high-performing keywords in minutes.

Advanced Web Ranking

World’s most accurate, longest-standing SEO software with rankings, links, analytics and social. Yes, there's a free trail.