Dead Link Checker is described as 'Check for broken links on any website. Links that don't work damage your search rankings and provide for a poor user experience. No downloads - just enter the name (URL) of the website you wish to check' and is an website. There are more than 10 alternatives to Dead Link Checker, not only websites but also apps for Mac, Windows, Linux and Wine. The best Dead Link Checker alternative is Xenu's Link Sleuth, which is free. Other great sites and apps similar to Dead Link Checker are LinkChecker, Integrity, Scrutiny and Broken Links at a Glance.
TechSEO360 essentially offers crawling of huge websites, collects and shows just about any technical SEO related information you want and can create all types of sitemaps including XML with hreflang information, image, video and HTML/CSS/Javascript.
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