You can get a lot of requests from just silly stuff, looking at account analytics combines your domains, with your workers traffic (even a silly hello-world worker gets issued a certificate, which bots watching Cert Transparency logs can see being issued and crawl), and your pages.dev traffic which also has it's own cert issued. 1.65k isn't crazy, and again keep in mind the Web Analytics views != requests. One view can be 30-40 requests for all the js/css/images/etc, depends on page