How many % of email (email exchanged between Gmail) domains are using Cloudflare?
google-starttls-domains.csv
This file contains, for the most recent day reported, the approximate percentage
encrypted for each “bucket” of email large enough to be reported upon.
Here's the result.
Type
Count
Cloudflare
13,155
Normal
43,897
23.1% of email (email exchanged between Gmail) domains are using Cloudflare.