When comparing Ahrefs vs Oncrawl, the Slant community recommends Ahrefs for most people. In the question“What are the best SEO analytics tools?” Ahrefs is ranked 2nd while Oncrawl is ranked 8th. The most important reason people chose Ahrefs is:
It can overview the full list of backlinks for any site.
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Pros
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.
Pro Simple graphics
OnCrawl provides data in easy to understand graphics. For each aspect of the page Oncrawl will create a graph showing how well pages on your site score. For example, if the titles are consistently too long/short you will quickly be able to see. Likewise, if descriptions are duplicated or headings aren't used to their best potential you will easily be able to tell.
Pro Checks performance
Performance is checked as well - page load times are tracked and displayed by both speed in seconds, as well as size in kilobytes (or megabytes).
Pro Scalable
It can crawl up to 250M URLs at 300URLs/sec.
Cons
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.
Con API only in the enterprise plan
Con Not free
Con Expensive subscription
While there is a free all-inclusive 30 day trial, subscriptions start at $19/month ($12.42/month if you sign up for a year-long subscription) which is steep for developing websites. The base plan is limited to 5 websites and 10k URLs per month, but doesn't include any concurrent crawls or custom reports. Prices go up to $279/month ($232.50/month if registered for the year). See more here
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