-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
But, from my understanding, it targeted only software developers that would like to have super-deep insights into the applications and is not intended for monitoring simple apps like websites. Also, I have no idea even if I embed it, whether will it be able to tell me if my resources loaded or the performance didn't go well. For example, I don't see how I can easily embed it into my website: https://docs.sentry.io/ only programming languages are listed here.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.