Mac OS Developer Tools
All the features of Integrity Plus and more. Fast, efficient, accurate link checker. (The version 8 engine is leaner, collects and displays more data.) Manage multiple sites, search, filter, export. Export an xml sitemap for submission to the search engines (and in other formats too). Option to include images and pdf files in the sitemap, automatically split if above a certain size. Set up rules for your priority / change frequency or edit these manually.
For a trial, please see the free version of Integrity.
Integrity Pro adds SEO and spellcheck features. Shows a list of warnings such as missing title / description, thin content, keyword stuffed pages, images without alt text, mixed content, redirect chains and much more.
You can view spellcheck results by misspelled word or by page. Uses the standard OSX functionality, languages installed on your system and your custom dictionary.
Adds option to look for 'lazy loaded' image urls. There are various arbitrary ways to implement lazy loading but Integrity should find them in the case of the most common implementations.
If a meta http refresh is within comments (including <!--[if lte IE 9]> ... <![endif]-->) then it's now correctly ignored.