When comparing SE ranking - All-Inclusive cloud-based SEO software vs Oncrawl, the Slant community recommends SE ranking - All-Inclusive cloud-based SEO software for most people. In the question“What are the best SEO analytics tools?” SE ranking - All-Inclusive cloud-based SEO software is ranked 7th while Oncrawl is ranked 8th.
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Pros
Pro Clean interface
Pro Multilingual
Pro Easy to use
Pro Does a lot more than SERP
Pro Multiple 'add-on' tools
Free and paid
Pro Great support
Pro Review schedule
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 Update every 3 days
Con Some options are not clear
Like the connection with Google Search Console and how keywords are updated.
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