Regarding the alleged performance benefits of using a public CDN: if there ever was a cache hit because a user visited one site then yours that coincidentally used the same CDN and query version (pro tip: never happened), and in a short enough time to not suffer a cache eviction, the user did not notice.
When the CDN was slow, every user noticed and thought your website was slow.
You gave away free analytics and made your website worse, there wasn't even a trade off.
When the CDN was slow, every user noticed and thought your website was slow.
You gave away free analytics and made your website worse, there wasn't even a trade off.