High Assurance Datacenter 1

oak.ct.letsencrypt.org (Production)

Public Data Center

acme-v01.api.letsencrypt.org (Production - deprecated)

acme-staging.api.letsencrypt.org (Staging- deprecated)

acme-v02.api.letsencrypt.org (Production)

ocsp.root-x1.letsencrypt.org

{e1,e2,r3,r4}.o.lencr.org & ocsp.int-x{3..4}.letsencrypt.org

Website

acme-staging-v02.api.letsencrypt.org (Staging)

ocsp.staging-x1.letsencrypt.org (Staging)

High Assurance Datacenter 2