DevOps & Cloud

Your website is loading slowly for users in regions far from your servers

We optimise your CloudFront distribution for maximum cache hit rate, minimum latency, and full security hardening — so every user gets a fast experience regardless of location.

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The challenges you're facing

CloudFront deployed with default settings achieving less than 40% cache hit rate — most requests still hitting origin

Pages loading in 4+ seconds for international users due to geographic distance from origin servers

No security headers on CloudFront responses, failing security scans and browser security standards

CloudFront Configured for Maximum Cache Hit Rate and Security

We audit your CloudFront distribution and optimise: cache behaviour configuration (cache-control headers, query string and cookie forwarding), origin configuration (keep-alive connections, compression), security headers via CloudFront Functions (HSTS, CSP, X-Frame-Options), WAF integration with managed rule groups, origin shield for lower origin load, real-time logs for performance visibility, and cost analysis of request patterns.

What you get

1

CDN Performance Audit

Analyse current cache hit rates, origin request patterns, cache-control headers, and latency by geography.

2

Cache Behaviour Optimisation

Configure optimal cache behaviours, TTLs, query string forwarding, and cookie handling to maximise cache hit ratio.

3

Security Headers & WAF

Deploy CloudFront Functions for security response headers and configure AWS WAF with managed rule groups.

4

Monitoring & Cost Reporting

Real-time CloudFront logs to CloudWatch, cache hit ratio dashboards, and cost-per-request analysis.

Technologies & tools

AWS CloudFrontAWS WAFCloudFront FunctionsLambda@EdgeAWS Certificate ManagerS3TerraformCloudWatch

Case study — anonymised

Media Publisher — 10M monthly visitors

Before

CloudFront distribution with 38% cache hit rate. Origin serving 62% of requests. Average TTFB for EU users: 890ms (origin in us-east-1). No security headers. WAF not configured.

After

Cache behaviour optimised: cache hit rate improved from 38% to 91%. Security headers deployed via CloudFront Functions. AWS WAF blocking 2,400 malicious requests/day.

Origin traffic reduced by 87%, EU user TTFB improved from 890ms to 48ms, AWS WAF blocking 2,400 threats/day, CDN cost per request reduced 34%

Frequently Asked Questions

Common questions from enterprise and mid-market teams across India and internationally.

What cache hit rate should I expect from a well-configured CloudFront?
A well-configured CloudFront distribution for a content-heavy site should achieve 85–95%+ cache hit rate. If you're seeing below 60%, the most common causes are: incorrect cache-control headers from origin (no-cache or no-store), forwarding too many query strings/cookies that break cache key matching, or cache TTLs set too low. We diagnose and fix all three.
What is the difference between CloudFront Functions and Lambda@Edge?
CloudFront Functions run at all 450+ CloudFront edge locations with sub-millisecond execution — ideal for simple request/response manipulation (header injection, URL rewriting, redirects). Lambda@Edge runs at 13 regional edge locations with longer execution time and access to network calls — for complex logic (A/B testing, authentication, dynamic content personalisation). Cost: Functions at $0.10/1M, Lambda@Edge at $0.60/1M.
Should I use AWS WAF with CloudFront and is it worth the cost?
Yes for any public-facing application. AWS WAF blocks OWASP Top 10 attacks (SQL injection, XSS, etc.), bot traffic, DDoS application layer attacks, and rate limiting abuse. Managed rule groups (AWS or third-party) provide immediate protection with minimal configuration. Cost: ~$5/month for WAF + $1/month per managed rule group — worthwhile for almost any production application.
How do I serve different content from CloudFront based on device or geography?
CloudFront passes headers like CloudFront-Is-Mobile-Viewer and CloudFront-Viewer-Country to origin, which can serve different content. For edge-based decisions (without hitting origin), Lambda@Edge can inspect these headers and return cached device/region-specific content. We implement both approaches depending on your content strategy and performance requirements.

Ready to get started?

Tell us about your situation and we'll respond with a tailored assessment within one business day.

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