I'll give credit where it's due, Shopify's status page is pretty reliable at showing downtime as it happens.

Many intentionally don't show outages. Amazon is generally quite picky about what is considered an AWS service outage

Of course they are picky, because they have SLAs that say outages cost them money. This speaks to the need for independent monitoring/auditing to ensure that companies are being honest about the metrics that they provide. Right now, no one can hold them accountable for lying on their status pages, because every customer must make their own case that there even was an outage. Worse, there’s no truly independent party to make them accept such evidence, so you are ultimately dependent on them deciding to come clean.

This website is the real status page for me

Too many bonuses and SLA contracts depend on the “status” for it to be a reliably self reported metric.

When I was in one of these positions, I negotiated bonuses to allow for some failures specifically to avoid this type of conflict of interest. I think it’s also mentioned in the seminal SRE book published by Google.

Github is good, though I suspect that will change given the amount of issues they run into daily: https://www.githubstatus.com/history