Have you ever experienced an ISP outage where the internet goes down for short periods at a time? These outages are difficult to detect, and ISPs often don’t report them to users. But they can be highly disruptive to users in homes and business productivity.

On Feb 19th, Shaw experienced a ~25 minute outage in Invermere, British Columbia impacting over 1000 customers.
Date & Time: February 19th, 1:20pm MST (5:10pm UTC)
Number of Users: ~1000
Location: Almyer, Ontario
Postal Codes: N5H
Downdetector did not pick up on the outage at all, even though this happened at 1:20pm during a business day:

The downside of using social media to detect service outages is you often miss issues in smaller towns and places where users aren’t using social media. Netstats is able to overcome this by directly testing 200,000+ networks in Canada, whether they are in big cities or not.
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