Dr. Link Check - Broken link checker with malware and parked domain detection
imgix - Real-time Image Processing. Resize, crop, and process images on the fly, simply by changing their URLs.
BrokenLinkCheck - Free Broken Link Checker / Online Dead Link Checking Tool - find bad hyperlinks
Cloudimage - Cloudimage.io is the easiest way to resize, store, and deliver your images to your customers through a rocket fast CDN.
DRKSpiderJava - DRKSpider is an open source website crawler (sitemap generator) and link checker. Features:
Sirv - Dynamic image processing, hosting and rich-media for retailers and eCommerce.