Janovka Klus is a vendor associated with the website https://mailalert.io/. The platform, Mailalert.io, specializes in providing an email notification service designed to keep users informed of changes on websites and online platforms. It helps users track updates by sending them email alerts for any modifications detected, which is especially useful for monitoring web pages that do not offer built-in notification features. The service is geared towards individuals and businesses looking to stay up-to-date with web content changes efficiently.