AWS CloudFront is Amazon Web Services' globally distributed content delivery network, widely used by enterprises, SaaS platforms, and high-traffic web applications to accelerate static and dynamic content delivery through AWS's edge location infrastructure. The AIWebsiteDetector detection engine identifies CloudFront-powered sites through two distinct HTTP response headers that Amazon injects at the edge layer, providing reliable, low-ambiguity signals that persist regardless of how the origin server is configured. These headers are characteristic to CloudFront's request routing and caching architecture, making them consistently present across the broad range of deployments — from simple S3-hosted static sites to complex multi-origin distributions fronting EC2 or Lambda backends. Because CloudFront operates as a transparent proxy layer rather than modifying page markup or injecting client-side scripts, header-based detection is the technically appropriate method and yields high-confidence results without reliance on DOM patterns or JavaScript fingerprinting. CloudFront is a paid AWS service billed on data transfer and request volume, though it integrates tightly with other AWS services and is commonly provisioned alongside Route 53, S3, and API Gateway — making its presence a strong indicator of a broader AWS-hosted infrastructure stack.
Detect AWS CloudFront Websites — Free Tool
Enter any URL to check if it was built with AWS CloudFront. Instant results, no account required.
How we detect AWS CloudFront — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
How to Detect AWS CloudFront Websites
HTTP Headers
2 patterns
1. Check the Page Source
Open the website in your browser, right-click, and select "View Page Source". Search for aws cloudfront-specific patterns in the HTML.
4. Use AI Website Detector (Easiest)
Our automated scanner checks all these signals at once and gives you an instant confidence score. Just enter any URL above.
Frequently Asked Questions
Is this website built with AWS CloudFront?
You can detect if any website was built with AWS CloudFront by using our free scanner above. Just enter the URL and we'll analyze HTML patterns, JavaScript files, CDN domains, and HTTP headers to determine if AWS CloudFront was used — with a confidence score.
How to detect if a website was built with AWS CloudFront?
There are several ways to detect AWS CloudFront: (1) View the page source and look for AWS CloudFront-specific class names or script URLs, (2) Check the Network tab in DevTools for requests to AWS CloudFront CDN domains, (3) Use our free tool — we check 2 detection signals automatically.
What websites are built with AWS CloudFront?
AWS CloudFront is used by thousands of websites worldwide. Our scanner has detected many AWS CloudFront-built sites across different industries. You can scan any URL to check if it uses AWS CloudFront.
How accurate is the AWS CloudFront detection?
Our AWS CloudFront detection engine checks 2 unique fingerprint signals, achieving high confidence results. We score each match and return a confidence percentage so you know how certain the detection is.
About AWS CloudFront
AWS CloudFront is a leading cdn used by thousands of businesses and developers worldwide. Our detection engine can identify AWS CloudFront-built websites with high confidence by analyzing multiple technical signals.
Whether you're a developer doing competitive research, a designer looking for inspiration, or just curious about how a website was built — AI Website Detector gives you instant, accurate detection.
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Detection Info
- Category
- CDN
- Signals Used
- 2 patterns
- Accuracy
- High
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