@Kethinedi, Sireesha - XylemThank you for reaching out.
I understand you want to explore on option how to keep your website up when Azure Front Door faces availability issues.
There is an option you can explore to use Azure Traffic Manager with Azure Front Door and another partner CDN, Verizon. You can put an Azure Traffic Manager in front of an Azure Front Door. In the unlikely event that Azure Front Door is unavailable, Azure Traffic Manager can then route traffic to an alternative destination like a partner content delivery network (CDN).
This architecture is discussed in detail here
Hope this helps! Please let me know if you have any additional questions. Thank you!
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