Cloudinary
Storage
AWS S3
StorageCloudinary vs AWS S3 (2026): Which Is Better?
Cloudinary and AWS S3 are both popular choices, but they serve different needs. Cloudinary is a Storage with a traditional, manual approach to building, while AWS S3 is a Storage that prioritises developer or designer control.
Below you'll find a side-by-side breakdown of detection signals, AI scores, and technical fingerprints — plus our honest take on which builder wins for different use cases.
How we detect Cloudinary vs AWS S3 — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
Side-by-Side Comparison
| | |
|---|---|---|
| Category | Storage | Storage |
| AI Score | 10/100 — Unknown | 10/100 — Unknown |
| Detection Signals | 3 patterns | 3 patterns |
| Script Detection | — | — |
| CDN Detection | 1 domains | 2 domains |
| Header Detection | — | — |
| Sites Detected | 1 scans | No data yet |
| Best For | Professional websitesTry Cloudinary → | Professional websitesTry AWS S3 → |
| Official Website | Visit | Visit |
Example Websites
Cloudinary
Storage
Cloudinary is a storage with an AI Score of 10/100 (Unknown). Our detection engine uses 3 signal patterns to identify Cloudinary-built sites.
AWS S3
Storage
AWS S3 is a storage with an AI Score of 10/100 (Unknown). Our detection engine uses 3 signal patterns to identify AWS S3-built sites.
Platform Overviews
Cloudinary
Cloudinary is a cloud-based media management platform that handles image and video upload, optimization, transformation, and delivery via URL parameters — widely used by e-commerce sites and content-heavy applications that need on-the-fly image resizing and format conversion without running their own media pipeline. Our engine detects Cloudinary through 2 HTML patterns and 1 CDN domain matching its distinctive `res.cloudinary.com` asset-delivery URL structure, which is one of the more unambiguous signals in our database since that URL pattern is unique to Cloudinary's infrastructure. Documented at cloudinary.com.
AWS S3
Amazon S3 (Simple Storage Service) is AWS's object storage product, used across the web to host static assets, images, and file uploads — it's infrastructure rather than a website builder, so its presence typically indicates a custom-built or self-hosted site storing media on AWS rather than a local server or a different CDN. Our engine detects S3 usage through 1 HTML pattern and 2 CDN domain signatures matching S3's characteristic bucket-URL and `amazonaws.com` hosting patterns referenced in asset URLs. Documented at aws.amazon.com/s3.
Key Differences
- Both Cloudinary and AWS S3 are classified as Storage tools, making them the most direct competitors in this comparison.
- Cloudinary scores higher on AI involvement (10/100 vs 10/100 for AWS S3), meaning it relies more heavily on AI for site generation and content creation.
- Our detection engine identifies Cloudinary using 3 fingerprint patterns and AWS S3 using 3 patterns — more signals generally means more reliable detection.
- Cloudinary serves assets from
/res\.cloudinary\.com/iwhile AWS S3 uses/s3\.amazonaws\.com/i— making CDN domain analysis one of the most reliable ways to distinguish them.
Which Should You Choose?
Choose Cloudinary if…
- You prefer a storage solution
- You want more manual control over the final output
- Cloudinary's detection fingerprint of 3 signals means your site is reliably identifiable
Choose AWS S3 if…
- You need a storage approach
- You prefer traditional building tools with predictable output
- AWS S3's ecosystem and community better match your team's existing workflow
Our Pick — Based on 1+ detections
Cloudinary
The most frequently detected storage in our scan database.
Was this helpful?
Check Which Builder Powers a Site
Curious if a website uses Cloudinary or AWS S3? Scan it now — free.
Cloudinary vs Uploadthing
Cloudinary vs ImageKit