CDN Performance Tester
Fetch a small asset from each major CDN and compare how fast they deliver to your location — useful for picking the right CDN for your audience.
🔒 Runs entirely in your browser · nothing is uploaded or stored
🌍 Why it varies
CDNs have different edge footprints. The fastest CDN in Mumbai may not be fastest in São Paulo. Always test from where your users are.
📦 What's fetched
A tiny, publicly-hosted library file from each provider's edge. We time the round trip 5× and report the median.
Frequently Asked Questions
Does the fastest CDN here mean it's fastest for everyone?
No — results are specific to your network and location right now. Run it from your main markets, or ask users in different regions to run it, before standardizing on one CDN.
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