It is an accomplished fact that safeguarding the prescribed temperature margins in the cold chain of vaccines and medicines is paramount. After all, patient safety is central. Deviations in temperature margins can lead to a shortened shelf life or reduced effect of the vaccine or drug. Therefore, these temperature margins must be continuously monitored. Temperature recorders, also known as data loggers, are usually used for this. However, registration often involves many administrative actions. LogTag Online has been developed to make this process easier and more user-friendly.