In a recent update, we have moved away from various analytics services that we previously leveraged to collect metrics and site usage data. These analytics services were all third-party and was aggressive in collecting user data.
You could have always opted out of analytics by enabling the Do Not Track option from your settings area. But, to take this a step further we have switched to an open source self-hosted solution to collect basic anonymized data. It is clear that these basic data are sufficient for us to understand how you use our services and how we can improve Toph.
And now, you can see what we collect and how we do it here: https://goatcounter.toph.co/