https://certobserver.com/ https://certobserver.com/pricing https://certobserver.com/contact https://certobserver.com/privacy https://certobserver.com/terms https://certobserver.com/blog https://certobserver.com/blog/category/industry-news https://certobserver.com/blog/max-tls-server-cert-validity-drops-to-47-days-by-2029 https://certobserver.com/blog/lets-encrypt-6day-and-ip-certs-general-availability