This is a (hopefully) authoratative listing of all the HTTP headers used by the major cloud providers

AWS Elastic Load Balancer (ELB & ALB)

• 'Server: awselb/2.0'
• 'Set-Cookie: AWSALB='
• 'Set-Cookie: AWSALBCORS='

aws-cloudfront

• 'X-Amz-Cf-Id:'
• 'X-Amz-Cf-Pop:'

aws-s3

• 'X-Amz-Replication-Status:'
• 'X-Amz-Error-Code:'
• 'X-Amz-Error-Message:'
• 'X-Amz-Error-Detail-Key:'

aws-codebuild

• "arn: arn:aws:codebuild"
• 'X-Amz-Meta-Codebuild-Buildarn:'
• 'X-Amz-Meta-Codebuild-Content-Sha256:'
• 'X-Amz-Meta-Codebuild-Content-Md5:'

aws-api-gateway

• 'X-Amz-Apigw-Id:'
• 'X-Amzn-Remapped-Connection:'
• 'X-Amzn-Remapped-Content-Length:'
• 'X-Amzn-Remapped-Date:'

aws-kms

• 'X-Amz-Server-Side-Encryption:'

aws-xray

• 'X-Amzn-Trace-Id:'

aws-waf-captcha

• 'X-Amzn-Waf-Action:'

aws-dynamodb

• 'X-Amz-Crc32:'
• 'X-Amz-Target:'

This unique Oracle-assigned request ID header is passed with every response from Oracle cloud. For more information check out: https://docs.public.oneportal.content.oci.oraclecloud.com/en-us/iaas/Content/API/Concepts/usingapi.htm

• opc-request-id:
• x-oracle-apmcs-request-id:
• x-oracle-dms-ecid:
• x-oracle-dms-rid:

Azure Front Door

• X-Azure-Ref:
• X-Azure-FDID: # A unique ID identifying customer ID in Front Door
• X-FD-HealthProbe: # A boolean identifying if the request was a backend probe

Azure Functions

• X-Azure-Ref:
• X-Ms-Clitelem:
• X-Ms-Ests-Server:

Azure Storage

• X-Ms-Request-Id:

Azure App Service App Restriction

• X-Ms-Forbidden-Ip:

Microsoft Active Directory Federation Services

• x-ms-proxy-app-id:
• x-ms-proxy-group-id:
• x-ms-proxy-subscription-id:
• x-ms-proxy-transaction-id:
• x-ms-proxy-service-name:
• x-ms-proxy-data-center:

• x-cloud-trace-context:

Google App Engine

• Server: Google Frontend

• Set-Cookie: heroku-session-affinity=
• Server: heroku
• Reporting-Endpoints: heroku-nel=
• Nel: {"report_to":"heroku-nel","max_age":3600,"success_fraction":0.005,"failure_fraction":0.05,"response_headers":["Via"]}

• __appianCsrfToken:
• set-cookie: __appianCsrfToken=

• x-platform-server:

• fly-request-id: