When comparing SEMRush vs Ahrefs, the Slant community recommends SEMRush for most people. In the question“What are the best SEO analytics tools?” SEMRush is ranked 1st while Ahrefs is ranked 2nd. The most important reason people chose SEMRush is:
With just a single seed keyword, the Keyword Magic Tool allows you to generate keywords within your niche, including long-tail keywords across specific subgroups.
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Pros
Pro Keyword generation
With just a single seed keyword, the Keyword Magic Tool allows you to generate keywords within your niche, including long-tail keywords across specific subgroups.
Pro Lots of features
More features than any of the other products here with a lot of depth.
Pro Gives more accurate analytics than any other tool
It also gives more updated Analytics Results.
Pro Reasonable free featres
While the pro-features are horribly expensive, you get reasonable amount of features in the free version.
Pro Great comprehensive overview of backlink profile for any site
It can overview the full list of backlinks for any site.
Pro Great visualizations
Pro Lets you audit complete website
With complete domain.
Pro Finds the most backlinks
In a test by Matthew Woodward, ahrefs found the most backlinks on his sites, beating runner up MOZ by about 9,000 links.
Cons
Con Can get spendy depending on your needs
Con Limited number of projects
Con Takes time to learn all the features
Has many features to discover links, keywords and more. You will need a bit of time to get through all of it.