Updated text about domain verification.

Author: yutanglin16

articles/app-service/configure-ssl-certificate.md

@@ -348,7 +348,7 @@ To replace an expiring certificate, how you update the certificate binding with
 ### Renew an App Service certificate
 
 > [!NOTE]
-> Beginning on September 23 2021, App Service certificates require domain verification every 395 days. The new certificate order remains in "pending issuance" during renew or rekey until you complete the domain verification.
+> Beginning September 23 2021, App Service certificates require domain verification during renew or rekey if you haven't verified domain in the last 395 days. The new certificate order remains in "pending issuance" during renew or rekey until you complete the domain verification.
 > 
 > Unlike App Service Managed Certificate, domain re-verification for App Service certificates is *not* automated, and failure to verify domain ownership will result in failed renewals. Refer to [verify domain ownership](#verify-domain-ownership) for more information on how to verify your App Service certificate.