Google Malware Checker is an important tool for website owners and web developers because it helps identify and remove malware from their website. Malware, or malicious software, can harm a website by stealing personal information, spreading viruses, or disrupting the site's functionality. By using Google Malware Checker, website owners can ensure that their website is safe for visitors and that their online reputation is protected. Additionally, Google Malware Checker can also help website owners avoid being penalized by Google, which can negatively impact their search engine rankings. Overall, Google Malware Checker is an essential tool for maintaining the security and integrity of a website.