A deep dive into the technology that makes your images load 10x faster without any effort from you.
No CMS plugin. No build step. No URL rewrites. Just paste one line of code in your website header and every image is instantly optimized.
<script
src="https://cdn.imgr.ch/client.js"
data-key="pk_live_...">
</script>Imgr watches how your images actually render on visitor screens, then automatically serves the perfect size next time. No manual configuration.
Not viewport width — the exact pixel size your images display at.
480, 768, 1024, 1440, 1920, 2560px — covers 99% of devices.
We automatically serve AVIF to Chrome, WebP to Safari, and fallback to JPEG for older browsers. Zero configuration from you.
Chrome
Safari
Firefox
a7f3b2...c9d1e4...Ensures fresh images without cache purge headaches. When you update an image, we detect the change and automatically refresh the CDN.
We track ETag/Last-Modified headers to detect changes
Automatic edge cache invalidation worldwide
Just update your image, we handle the rest