What is the difference between Azure Front Door Standard and Premium?

Standard provides global load balancing, SSL offloading, URL redirect/rewrite, and caching. Premium adds the Web Application Firewall (WAF) with managed rule sets, bot protection, and Private Link origin support for secure backend connectivity. Premium is required for compliance-sensitive applications.

How do rule sets work in Azure Front Door?

Rule sets contain ordered rules that evaluate conditions (request path, headers, query strings, etc.) and execute actions (redirect, rewrite, modify headers, override caching). Rules are evaluated in order within a rule set, and multiple rule sets can be associated with a route.

Can I use Front Door with origins outside Azure?

Yes. Azure Front Door supports any publicly accessible HTTP/HTTPS endpoint as an origin, including on-premises servers, other cloud providers, and third-party services. Premium tier additionally supports Private Link origins for Azure-hosted backends.

Azure Front Door Rule Builder

NetworkingAzure

Build Front Door routing rules, URL redirect/rewrite, header modification, and caching configs in ARM and Bicep formats.

Input

Example Presets

Rule Name (alphanumeric)

Rule Type

Order

Match Conditions

No match conditions. Rule applies to all requests.

URL Redirect Settings

Redirect Type

Destination Protocol

Custom Host (optional)

Custom Path (optional)

Custom Query String (optional)

About Azure Front Door Rules Engine

Standard vs Premium: Front Door Standard supports basic routing and caching rules. Premium adds advanced rules including private link origins, bot protection, and WAF integration. The Rules Engine is available on both tiers.

Rules Engine: Rules are organized in rule sets and processed in order. Each rule can have match conditions (when to apply) and actions (what to do). Rules execute top-down and short-circuit when a route override or redirect action fires.

Caching Best Practices: Cache static assets (images, CSS, JS) with long TTLs (7+ days). Use query string caching wisely “IgnoreQueryString” maximizes cache hit ratio. Set “UseQueryString” only for dynamic content that varies by query parameters.

Raw Output

Output will appear here...

About This Tool

The Azure Front Door Rule Builder creates routing rules, URL redirect and rewrite configurations, header modifications, and caching policies for Azure Front Door profiles. It supports the Standard and Premium tiers with rule sets that chain conditions and actions for fine-grained traffic management. The tool generates configurations in ARM template and Bicep format.

When to Use This Tool

•Creating URL redirect rules to enforce HTTPS, add www prefixes, or redirect legacy paths to new locations.
•Building URL rewrite rules that transparently route requests to different backend origins based on path patterns.
•Configuring response header modifications to add security headers like HSTS, CSP, and X-Frame-Options.
•Setting up caching rules with different TTLs for static assets versus dynamic API responses.

Frequently Asked Questions

What is the difference between Azure Front Door Standard and Premium?: Standard provides global load balancing, SSL offloading, URL redirect/rewrite, and caching. Premium adds the Web Application Firewall (WAF) with managed rule sets, bot protection, and Private Link origin support for secure backend connectivity. Premium is required for compliance-sensitive applications.
How do rule sets work in Azure Front Door?: Rule sets contain ordered rules that evaluate conditions (request path, headers, query strings, etc.) and execute actions (redirect, rewrite, modify headers, override caching). Rules are evaluated in order within a rule set, and multiple rule sets can be associated with a route.
Can I use Front Door with origins outside Azure?: Yes. Azure Front Door supports any publicly accessible HTTP/HTTPS endpoint as an origin, including on-premises servers, other cloud providers, and third-party services. Premium tier additionally supports Private Link origins for Azure-hosted backends.

Related Learning Guides

Front Door & CDN Guide24 min read
Azure Networking Deep Dive30 min read

Disclaimer: This tool runs entirely in your browser. No data is sent to our servers. Always verify outputs before using them in production. AWS, Azure, and GCP are trademarks of their respective owners.