Website Checker is a free Chrome add-on developed by Krzysztof Wróbel. It falls under the category of Browsers and belongs to the subcategory of Add-ons & Tools. This program allows users to monitor multiple websites and display events from these sites over the icons.

With Website Checker, users can check websites at defined intervals and use regular expressions to display a number of matches or the first group of matches. The program also offers the option to show the website favicon or set a custom URL for the icon. Additionally, the badge on the icon blinks when there is a change in the website's status.

One of the key features of Website Checker is the availability of predefined templates for popular platforms such as Gmail, Facebook, and WordPress. These templates make it easy to monitor notifications, unread posts, or other events specific to these platforms. Only websites with more than zero events are shown in the cycle, ensuring a clutter-free display.

To set up Website Checker, users can simply right-click on the icon and choose "Options." From there, they can select a predefined template or manually enter the necessary information, including the title, link, regular expression, and interval. Users can also add multiple websites by clicking "Next."

Overall, Website Checker is a useful tool for individuals who want to stay updated on events happening on their favorite websites. Whether it's monitoring unread posts on a forum or tracking notifications on social media, this add-on provides a convenient way to keep tabs on multiple sites in one place.

Please note that for any questions, problems, or suggestions regarding Website Checker, users can contact the developer at