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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.
Google does host an AMP cache. So does Bing, who as we know is a direct Google competitor. Cloudflare has AMP offerings too. Did you know you can host your own AMP cache on your own domain just like those 3 have done? Here are the guidelines for creating you own. How is it a Google-controlled tech if you can spin up the same tech via your own cache and operate completely agnostically of Google? AMP is not Google-controlled and it's not a Google offering. It's open source.
For encryption messages, I use signal. Signal has one big advantage. You can read the source code if you know how: https://github.com/signalapp/Signal-Android
If you don't want to give off your phone number, just Use Element.io. It's open source too (There's a source code for the desktop client too). You don't have to trust a certain company either, anyone can open an Element server.