I made a free tool that tells you if your website is affected by this week's PHP security issue

On 21 October a critical security flaw in PHP was published. PHP runs a huge share of websites, and this flaw lets attackers take over the server. If your site runs PHP, it needs an update. I noticed that most people don't know whether their site uses PHP, so I built doiusephp.com for them. Type in your website and within seconds it tells you: Whether your site runs PHP, and through what technology (e.g. Wordpress) Which PHP version your site uses and whether that version is already