Best Vulnerability Scanners for CSS

urlscan.io is a free service to scan and analyze websites. When a URL is submitted to urlscan.io, an automated process will browse to the URL like a regular user and record the activity that this page navigation creates. This includes the domains and IPs contacted, the resources (JavaScript, CSS, etc.) requested from those domains, as well as additional information about the page itself. urlscan.io will take a screenshot of the page, and record the DOM content, JavaScript global variables, cookies created by the page, and a myriad of other observations. If the site is targeting the users of one of the more than 900 brands tracked by urlscan.io, it will be highlighted as potentially malicious in the scan results. Our mission is to allow anyone to easily and confidently analyze unknown and potentially malicious websites. Just like you would use a malware sandbox to analyze suspicious files, you can use urlscan.io to do the same thing but with URLs.