Ahrefs

• Backlink data: Ahrefs continues to provide the best backlink data in the industry when compared to other tools. Other players are playing catching up, but as a first mover, Ahrefs is ahead of the game by far.
• Keyword data: Ahrefs provides extremely valuable keyword data. Though I rank them second in this category, the data that they provide is comparable to the first ranked player.
• Content Explorer: I don't think other industry tools (SEO specific) has a content explorer as useful as Ahrefs. Their content explorer works great for identifying top content and trends for multiple industries.
• Rank Tracker: This rank tracker is better than the average tracker and Ahrefs provides a large limit for tracked keywords. Though they have moved away from daily updates, the rank tracker is great for bench marking progress.

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• Anchor text alert notifications for a specific domain would be nice to have.
• Would also be nice to set a specific client domain and then be able to pick 5 competitor sites to compare it to instead of entering in the client site and then 4 competitors to compare.
• Adding emails to forward the exports to from running a report would be good too.

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• When we can create really great content for our site that ranks well and quickly, we can more effectively monetize that content with affiliate links.
• Boosting our clients' overall rankings also has a positive impact on revenue since the lifetime value for a client with a high performing campaign is better than one that is lackluster
• We can analyze competitors (of ours and our clients) and hopefully outmaneuver them digitally

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