The tiers are Platinum, Gold, and Silver. Check out the current sponsors [0] and info on becoming a sponsor [1]. [0]: https://letsencrypt.org/sponsors/ https:/

The tiers are Platinum, Gold, and Silver. Check out the current sponsors [0] and info on becoming a sponsor [1]. [0]: https://letsencrypt.org/sponsors/ https://letsencrypt.org/sponsors/ [1]: https://letsencrypt.org/become-a-sponsor/ https://letsencrypt.org/become-a-sponsor/