We are announcing that Azure Public IPs are zone redundant by default. Unless you specifically select a single zone when you create Standard Public IPs, it will be zone redundant.
Zone-redundant by default for Public IPs has no extra cost associated with it. A zone-redundant IP is created in all 3 zones for a region and can survive any single zone failure improving the resiliency of your application using this public IP.
This functionality is available in limited regions and will continue to expand. Please read our documentation for an update to date region availability.
Learn more.