Screaming Frog
This checks a whole website and find mistakes that can affect SEO.
Its a nice tool because checks all pages in one go.
It is a desktop app, it’s large 560mb.
It's easy to use
It looks complicated, but all you have to do is enter the domain name and scan a website.
Then you read the results, which will tell you if there are broken links, missing page titles, big images, etc.
This tool is for developers and coordinators
This is a tool to look for SEO improvements. You can learn it quickly, but it helps if someone gives you a quick tour.
Internal, External and Broken Links
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Use it for post launch QA
At this stage, we only use it to find broken links. ie. links to pages that don’t exist on the website due to spelling mistakes or domain name mistakes.
Use it for further SEO improvements
There will be lots of missing SEO data and errors that you can fix. You just need to spend a little time looking trying to understand the results.