Netpeak Spider - A desktop tool for fast and comprehensive technical audit of the entire website.

SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.

Xenu's Link Sleuth - Xenus Link Sleuth checks Web sites for broken links.

Ahrefs - Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!

Scrutiny - Scrutiny for Mac helps you manage and improve any number of websites. Link check, search, full website spell check, XML sitemap generator, SEO audit

Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.