Claims portability, downloads in a zip file.SiteAnalyzer is designed to analyze the site and to identify technical errors (search for broken links, duplicate pages, incorrect server responses), as well as errors and omissions in the SEO-optimization (blank meta tags, excess or complete lack of headers h1 pages, page content analysis, relink quality and a variety of other SEO-parameters). In total, more than 60 parameters are analyzed.
https://site-analyzer.pro/documentation/
Status: Untested, but I'm definitely going to have a need for this in the months ahead so I expect to come back to it. Even some for-pay tools I've seen don't appear to have these features. Great to see.
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There's also a text similarity checker by the same developer that I'm thrilled to see but that's a little too niche. https://site-analyzer.pro/soft/batch-unique-checker/ Focusing this thread on the website analyzer, as I expect that will get a lot more interest.