How to suppress web access invoked by Sentry

Hi,

I’m using Sentry 6.4.4, On-Premise, to collect JavaScript errors from browsers.

Let me ask about Sentry’s behavior when accepting error reports.
It seems that Sentry itself accesses URLs reported from browsers.
The user-agent of those accesses is like Sentry/6.4.4.

Why does Sentry invoke those web access?
And, is it possible to suppress them?

Thank you for your reading.

Best Regards,
Masaki