Qualys BrowserCheck is a free tool that scans your browser and its plugins to find potential vulnerabilities and security holes and help you fix them.

Most Secure Web Browser of 2020: Staying Safe Online Recently I ran them all through a security check with Browser Audit. Seamonkey came up as the most secure with 0 critical warnings in the security test results. 11 Online Free Tools to Scan Website Security Web Cookies Scanner is a free all-in-one security tool suitable for scanning web applications. It is capable of searching vulnerabilities and privacy issues on HTTP cookies, Flash applets, HTML5 localStorage, and sessionStorage, Supercookies, and Evercookies. Panopticlick Panopticlick will analyze how well your browser and add-ons protect you against online tracking techniques. We’ll also see if your system is uniquely configured—and thus identifiable—even if you are using privacy-protective software. However, we only do so with your explicit consent, through the TEST ME button below.

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Panopticlick will analyze how well your browser and add-ons protect you against online tracking techniques. We’ll also see if your system is uniquely configured—and thus identifiable—even if you are using privacy-protective software. However, we only do so with your explicit consent, through the TEST ME button below. What browser am I using? Is my browser up to date? Test your internet speed. Use this tool to test how fast your internet connection is. Computer screen. This feature helps your IT Support team know what kind of web browser you're using. Technical information about your system & your IP Address will be sent to the email address you specify. 7 Browser Security Tests to Try Out and Prevent Exploit

This tool instantly scans your security stack to find common intrusion and data exfiltration methods left exposed. It is safe to use and runs within your browser. It won’t introduce malware, and doesn’t access your data or change settings. Test your cyber risk posture now

BrowserLeaks.com is all about browsing privacy and web browser fingerprinting. Here you will find a gallery of web browser security testing tools that will show you what kind of personal identity data can be leaked while browsing the Internet. Evaluating Your Web Browser's Security Settings | CISA Jan 09, 2008 SSL/TLS Client Security Test - BrowserLeaks