Cloudflare offers a free plan that's fantastic. The free plan gives you effectively unlimited DNS/CDN traffic for a normal site, while the main practical cap is 100,000 Worker invocations per day, with 10 ms CPU per Worker request and a 100 MB request body limit. (If that means anything to you).

The next tier up from free is $25/month or $240 per year.

https://www.cloudflare.com/plans/ https://www.cloudflare.com/plans/free/