Something of interest
Here’s something you don’t see every day – in fact, I don’t recall having seen it over the last year that we’ve been doing these API.expert reports: the Messaging APIs category has no API with a CASC score of 9.00 or more. Of the 9 Messaging APIs in the category, 7 of them are in the Green Zone with a CASC score of 8.00 or more. Cisco WebEx Teams, which has often languished, is in 7th place with a CASC score of 8.24. That’s a perfectly respectable CASC score as far as it goes. Zoom, topping the table with a CASC score of 8.94, in the grand scheme is doing fine. 
Zoom has a 100% pass rate and is second in the Messaging APIs category for outliers. It’s only the third-fastest though, so that is where it could use some improvements. 
Total Time is fastest in North America with Europe a strong second. But Zoom is a global brand. It is letting down its users in the rest of the world. 
Handshake Time looks like the rate-determining latency component for Messaging APIs. East Asia, South Asia and Oceania are all adding about 400 ms in extra latency from Handshake Time. It’s through active API monitoring that you can understand just what your users are really experiencing when they are using your service around the world. And it can be quite different to what is happening inside your own corporate network and data center. Looking to optimize network performance and especially Handshake Time outside North America is going to lead to a big improvement in the quality of service those Zoom users experience.
API Ratings: Overall Quality
Week Ending 25 January 2021
Category
Organization
CASC score
Corporate Infrastructure
Box
9.45
COVID-19
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