SSLLabs is a website designed to help users evaluate and understand the security of SSL/TLS connections used to secure websites. It is operated by Qualys, a California-based security company. The website allows users to enter a domain name and receive a detailed report that includes information about the SSL/TLS configuration, as well as an overall assessment of its security strength. The report also provides recommendations on how to improve the security of the SSL/TLS connection. SSLLabs also offers an API that allows developers to integrate their services with the website.