How 24/7 SRE Support Helped a Leading Hospital Group Eliminate Downtime and Boost Patient Trust
Client Overview
A global enterprise operating a high-traffic Azure-based web application faced growing security threats, inefficient domain redirection, and performance challenges. By adopting Azure Front Door Premium, Private Link, and WAF, the client achieved end-to-end traffic isolation, automated threat mitigation, and significant performance gains—while simplifying domain management at scale.
Business Challenge
The client experienced multiple security incidents and operational inefficiencies due to outdated infrastructure and reactive measures.
Key Issues Faced:
- Malicious traffic patterns and dynamic IP-based attacks
- Inefficient domain redirection logic managed through code
- Manual IP blocking via NSGs was ineffective and high-maintenance
- Publicly exposed VM endpoints increased vulnerability
- URL Rewrite module introduced operational overhead and code risks
Our Solution
We implemented a modern, secure infrastructure leveraging Azure Front Door Premium, WAF, and other native Azure services.
Network Security and Isolation
- Restricted VM web servers to private IPs, removing public exposure
- Implemented Azure Front Door Premium with Private Link for secure backbone routing
- All traffic filtered through Azure Front Door before backend access
Domain Management Optimization
- Migrated hundreds of domain redirect rules to Azure Front Door rules engine
- Eliminated error-prone URL Rewrite module dependencies
- Edge-level redirection improved performance and simplified updates
Security Hardening with Azure WAF
- Custom WAF rule sets to block known malicious behaviors
- Automated protection from SQLi, XSS, bots, and OWASP Top 10 threats
- Eliminated reliance on reactive IP blocking
Performance Improvements
- Enabled global caching via Azure Front Door to accelerate content delivery
- Reduced latency and improved load times for users worldwide
Results & Business Impact
Security
Proactive threat mitigation with WAF, Private Link, and no public endpoints.
Traffic Routing
All web traffic routed securely through Azure’s global backbone.
Domain Management
Centralized and automated redirection logic via Front Door rules engine.
Performance
Faster page loads through caching and edge delivery enhancements.
Reduced Overhead
Simplified infrastructure and fewer manual updates required.
This architecture delivered a modern, secure, and scalable platform by leveraging Azure Front Door Premium, WAF, and Private Link—dramatically improving security, performance, and operational simplicity.
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