CircleCI trusts 8 analytics companies with your source code and API tokens
At GitLab we separated the infrastructure between about.gitlab.com (our marketing site, lots of third party javascript) and gitlab.com (our application, zero third party javascript). We recently deprecated the Piwik instance we ran in house for gitlab.com because it slowed the page load time. Please let me know if there is anything we can do better, these things are complex.