profiles
Summary
Details
Avoid combining Traffic Manager and Front Door
Impact: High Category: Business Continuity
APRL GUID: 9437634c-d69e-2747-b13e-631c13182150
Description:
For most solutions, choose either Azure Front Door for content caching, CDN, TLS termination, and WAF, or Traffic Manager for simple global load balancing.
Potential Benefits:
Optimized network routing and security
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// Azure Resource Graph Query
// Avoid combining Traffic Manager and Front Door
resources
| where type == "microsoft.network/trafficmanagerprofiles"
| mvexpand(properties.endpoints)
| extend endpoint=tostring(properties_endpoints.properties.target)
| project name, trafficmanager=id, matchname=endpoint, tags
| join (
resources
| where type =~ "microsoft.cdn/profiles/afdendpoints"
| extend matchname= tostring(properties.hostName)
| extend splitid=split(id, "/")
| extend frontdoorid=tolower(strcat_array(array_slice(splitid, 0, 8), "/"))
| project name, id, matchname, frontdoorid, type
| union
(cdnresources
| where type =~ "Microsoft.Cdn/Profiles/CustomDomains"
| extend matchname= tostring(properties.hostName)
| extend splitid=split(id, "/")
| extend frontdoorid=tolower(strcat_array(array_slice(splitid, 0, 8), "/"))
| project name, id, matchname, frontdoorid, type)
)
on matchname
| project
recommendationId = "9437634c-d69e-2747-b13e-631c13182150",
name=split(trafficmanager, "/")[-1],
id=trafficmanager,
tags,
param1=strcat("hostname:", matchname),
param2=strcat("frontdoorid:", frontdoorid)
Restrict traffic to your origins
Impact: High Category: Security
APRL GUID: 6c40b7ae-2bea-5748-be1a-9e9e3b834649
Description:
Front Door's features perform optimally when traffic exclusively comes through Front Door. It's advised to set up your origin to deny access to traffic that bypasses Front Door.
Potential Benefits:
Enhances security and performance
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// under-development
Use the latest API version and SDK version
Impact: Medium Category: Scalability
APRL GUID: 52bc9a7b-23c8-bc4c-9d2a-7bc43b50104a
Description:
When working with Azure Front Door through APIs, ARM templates, Bicep, or SDKs, using the latest API or SDK version is crucial. Updates bring new functions, important security patches, and bug fixes.
Potential Benefits:
Enhanced security and features
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// under-development
Configure logs
Impact: Medium Category: Monitoring and Alerting
APRL GUID: 1ad74c3c-e3d7-0046-b83f-a2199974ef15
Description:
Front Door logs offer comprehensive telemetry on each request, crucial for understanding your solution's performance and responses, especially when caching is enabled, as origin servers might not receive every request.
Potential Benefits:
Enhanced insights and solution monitoring
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// under-development
Use end-to-end TLS
Impact: High Category: Security
APRL GUID: d9bd6780-0d6f-cd4c-bc66-8ddcab12f3d1
Description:
Front Door terminates TCP and TLS connections from clients and establishes new connections from each PoP to the origin. Securing these connections with TLS, even for Azure-hosted origins, ensures data is always encrypted during transit.
Potential Benefits:
Ensures data encryption in transit
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// Azure Resource Graph Query
// Use end-to-end TLS
cdnresources
| where type == "microsoft.cdn/profiles/afdendpoints/routes"
| extend forwardingProtocol=tostring(properties.forwardingProtocol),supportedProtocols=properties.supportedProtocols
| project id,name,forwardingProtocol,supportedProtocols,tags
| where forwardingProtocol !~ "httpsonly" or supportedProtocols has "http"
| project recommendationId= "d9bd6780-0d6f-cd4c-bc66-8ddcab12f3d1", name,id,tags,param1=strcat("forwardingProtocol:",forwardingProtocol),param2=strcat("supportedProtocols:",supportedProtocols)
Use HTTP to HTTPS redirection
Impact: High Category: Security
APRL GUID: 24ab9f11-a3e4-3043-a985-22cf94c4933a
Description:
Using HTTPS is ideal for secure connections. However, for compatibility with older clients, HTTP requests may be necessary. Azure Front Door enables auto redirection of HTTP to HTTPS, enhancing security without sacrificing accessibility.
Potential Benefits:
Enhances security and compliance
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// Azure Resource Graph Query
// Use HTTP to HTTPS redirection
cdnresources
| where type == "microsoft.cdn/profiles/afdendpoints/routes"
| extend httpsRedirect=tostring(properties.httpsRedirect)
| project id,name,httpsRedirect,tags
| where httpsRedirect !~ "enabled"
| project recommendationId= "24ab9f11-a3e4-3043-a985-22cf94c4933a", name,id,tags,param1=strcat("httpsRedirect:",httpsRedirect)
Use managed TLS certificates
Impact: High Category: Security
APRL GUID: 29d65c41-2fad-d142-95eb-9eab95f6c0a5
Description:
When Front Door manages your TLS certificates, it reduces your operational costs and helps you to avoid costly outages caused by forgetting to renew a certificate. Front Door automatically issues and rotates the managed TLS certificates.
Potential Benefits:
Lowers costs, avoids outages
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// under-development
Use latest version for customer-managed certificates
Impact: Medium Category: High Availability
APRL GUID: 4638c2c0-03de-6d42-9e09-82ee4478cbf3
Description:
If you use your own TLS certificates, set the Key Vault certificate version to 'Latest' to avoid reconfiguring Azure Front Door for new certificate versions and waiting for deployment across Front Door's environments.
Potential Benefits:
Saves time and automates TLS updates
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// under-development
Use the same domain name on Front Door and your origin
Impact: Medium Category: Governance
APRL GUID: cd6a32af-747a-e649-82a7-a98f528ca842
Description:
Front Door can rewrite Host headers for custom domain names routing to a single origin, useful for avoiding custom domain configuration at both Front Door and the origin.
Potential Benefits:
Improves session/auth handling
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// under-development
Enable the WAF
Impact: Medium Category: Security
APRL GUID: 1bd2b7e8-400f-e64a-99a2-c572f7b08a62
Description:
For internet-facing applications, enabling the Front Door web application firewall (WAF) and configuring it to use managed rules is recommended for protection against a wide range of attacks using Microsoft-managed rules.
Potential Benefits:
Enhances web app security
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// Azure Resource Graph Query
// Enable the WAF
resources
| where type =~ "microsoft.cdn/profiles" and sku has "AzureFrontDoor"
| project name, cdnprofileid=tolower(id), tostring(tags), resourceGroup, subscriptionId,skuname=tostring(sku.name)
| join kind= fullouter (
cdnresources
| where type == "microsoft.cdn/profiles/securitypolicies"
| extend wafpolicyid=tostring(properties['parameters']['wafPolicy']['id'])
| extend splitid=split(id, "/")
| extend cdnprofileid=tolower(strcat_array(array_slice(splitid, 0, 8), "/"))
| project secpolname=name, cdnprofileid, wafpolicyid
)
on cdnprofileid
| project name, cdnprofileid, secpolname, wafpolicyid,skuname
| join kind = fullouter (
resources
| where type == "microsoft.network/frontdoorwebapplicationfirewallpolicies"
| extend
managedrulesenabled=iff(tostring(properties.managedRules.managedRuleSets) != "[]", true, false),
enabledState = tostring(properties.policySettings.enabledState)
| project afdwafname=name, managedrulesenabled, wafpolicyid=id, enabledState, tostring(tags)
)
on wafpolicyid
| where name != ""
| summarize
associatedsecuritypolicies=countif(secpolname != ""),
wafswithmanagedrules=countif(managedrulesenabled == 1)
by name, id=cdnprofileid, tags,skuname
| where associatedsecuritypolicies == 0 or wafswithmanagedrules == 0
| project
recommendationId = "1bd2b7e8-400f-e64a-99a2-c572f7b08a62",
name,
id,
todynamic(tags),
param1 = strcat("associatedsecuritypolicies:", associatedsecuritypolicies),
param2 = strcat("wafswithmanagedrules:", wafswithmanagedrules),
param3 = strcat("skuname:",skuname)
Disable health probes when there is only one origin in an origin group
Impact: Low Category: High Availability
APRL GUID: 38f3d542-6de6-a44b-86c6-97e3be690281
Description:
Front Door health probes help detect unavailable or unhealthy origins, directing traffic to alternate origins if needed.
Potential Benefits:
Reduces unnecessary origin traffic
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// Azure Resource Graph Query
// Disable health probes when there is only one origin in an origin group
cdnresources
| where type =~ "microsoft.cdn/profiles/origingroups"
| extend healthprobe=tostring(properties.healthProbeSettings)
| project origingroupname=name, id, tags, resourceGroup, subscriptionId, healthprobe
| join (
cdnresources
| where type =~ "microsoft.cdn/profiles/origingroups/Origins"
| extend origingroupname = tostring(properties.originGroupName)
)
on origingroupname
| summarize origincount=count(), enabledhealthprobecount=countif(healthprobe != "") by origingroupname, id, tostring(tags), resourceGroup, subscriptionId
| where origincount == 1 and enabledhealthprobecount != 0
| project
recommendationId = "38f3d542-6de6-a44b-86c6-97e3be690281",
name=origingroupname,
id,
todynamic(tags),
param1 = strcat("origincount:", origincount),
param2 = strcat("enabledhealthprobecount:", enabledhealthprobecount)
Select good health probe endpoints
Impact: Medium Category: High Availability
APRL GUID: 5225bba3-28ec-1e43-8986-7eedfd466d65
Description:
Consider selecting a webpage or location specifically designed for health monitoring as the endpoint for Azure Front Door's health probes. This should encompass the status of critical components like application servers, databases, and caches to serve production traffic efficiently.
Potential Benefits:
Improves traffic routing and uptime
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// under-development
Use HEAD health probes
Impact: Medium Category: Scalability
APRL GUID: 5783defe-b49e-d947-84f7-d8677593f324
Description:
Health probes in Azure Front Door can use GET or HEAD HTTP methods. Using the HEAD method for health probes is a recommended practice because it reduces the traffic load on your origins, being less resource-intensive.
Potential Benefits:
Reduces traffic load on origins
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// under-development
Use geo-filtering in Azure Front Door
Impact: Medium Category: Security
APRL GUID: b515690d-3bf9-3a49-8d38-188e0fd45896
Description:
Azure Front Door's geo-filtering through WAF enables defining custom access rules by country/region to restrict or allow web app access.
Potential Benefits:
Enhanced regional access control
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// under-development
Secure your Origin with Private Link in Azure Front Door
Impact: Medium Category: Security
APRL GUID: 1cfe7834-56ec-ff41-b11d-993734705dba
Description:
Azure Private Link enables secure access to Azure PaaS and services over a private endpoint in your virtual network, ensuring traffic goes over the Microsoft backbone network, not the public internet.
Potential Benefits:
Enhanced security and private connectivity
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
// under-development
Avoid using Classic Azure Front Door
Impact: High Category: Service Upgrade and Retirement
APRL GUID: 82fa3cff-74bd-4063-b726-834f160592fa
Description:
Azure Front Door standard is ~45% cheaper then AFD classic and has many additional benefits. Classic is also scheduled to be retired on March 31, 2027.
Potential Benefits:
Costs savings and additional supported features
Learn More:
ARG Query:
Click the Azure Resource Graph tab to view the query
//under-development