台灣新冠疫情足跡比對 is a free add-on tool for the Chrome browser developed by chsienlee. This tool helps users compare their Google location history with the footprints of confirmed COVID-19 cases in Taiwan. By analyzing the data, the tool alerts users if they have been within 300 meters of a confirmed case, indicating a potential high-risk area.

With the increasing concern over COVID-19 and the need for contact tracing, this tool provides a valuable service to individuals who want to be aware of their potential exposure to the virus. By comparing their location history with the footprints of confirmed cases, users can take necessary precautions and stay informed about high-risk areas they may have visited.

台灣新冠疫情足跡比對 is a useful and accessible tool that allows users to proactively protect themselves and others from the spread of COVID-19. By leveraging Google location history and the data of confirmed cases, users can make informed decisions and take appropriate actions to minimize their risk of infection.