Certbot SSL Limits – letsencrypt (Rate limit)

>c=certificates

5c – Per domain Per Day

300c – In 3 Hrs Max

50c – Per Week Per domain

When limitations are crossed we will be rate limited or even banned

– We can be banned by our domain name / Email / IP Address / IP Address range

Read More here :- https://letsencrypt.org/docs/rate-limits/

You can use the staging / test server when using for testing https://letsencrypt.org/docs/staging-environment/