Responsive Images on Autopilot

What are responsive images?

Responsive images are automatically scaled to suit the users’ screen. Smaller screens receive smaller images, Retina screens receive Retina images. Pages load faster and users enjoy a more personal experience.

Personalized for every visitor

Sirv introduces a new benchmark for responsive images. Rather than serve the nearest of 3 or 4 fixed widths, Sirv delivers the exact dimensions per device. It’s the ultimate solution for today’s myriad of mobile devices.

Responsive and optimized

Newly generated images are created in just 0.15 seconds, then cached for CDN delivery in just 0.001 seconds. Images are converted to the most optimal image format (often AVIF) to a fraction of their original size.

Lazy-loading on demand

Even better than fast loading is no loading (when it’s not needed). When an image is out of sight, Sirv only loads it if the user scrolls down to it. This lazy-loading technique brings yet another boost to loading speed.

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Responsive images for every platform

Any type of website can use Sirv. Apps for some popular platforms make it even faster to integrate.

Plugins and extensions

Upload your website images to Sirv with free and ready-to-install plugins and extensions for WordPress, Shopify, Magento, and more. Sirv team will gladly guide you if any questions come up.

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One master image is all you need

The fresh new approach to truly responsive images

The old way

Resize image into at least 3 sizes.
Double up the 3 sizes, for Retina screens.
Export them in the formats you want (JPEG/WebP/PNG).
Optimize them for web delivery.
Write the code to detect and serve the right image.

<img srcset="car-320.jpg 320w, car-480.jpg 480w, 
car-800.jpg 800w" sizes="(max-width: 320px) 280px, 
(max-width: 480px) 440px, 800px" 
src="car-800.jpg">

The Sirv way

Upload one image.
Copy/paste the code.

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<img class="Sirv" alt="black car image"
data-src="https://demo.sirv.com/car.jpg">
<script src="https://scripts.sirv.com/sirvjs/v3/sirv.js">
</script>

FAQs

What are automatic responsive images?

Automatic responsive images dynamically adjust their size and resolution to fit different screen sizes and devices, ensuring optimal display quality and performance.

How do automatic responsive images improve my website?

They enhance user experience by delivering appropriately sized images for each device, reducing load times and saving bandwidth, which also positively impacts your SEO rankings.

Do I need to manually create multiple versions of each image?

No, our system automatically generates and serves the right image sizes for different devices, saving you time and effort.

Can automatic responsive images be optimized for speed?

Yes, our service not only ensures responsive images but also compresses them to enhance load times without compromising on quality.

Are automatic responsive images compatible with all devices?

Absolutely. Our solution is designed to deliver the best-suited images for any device, from mobile phones to desktop monitors.

Is there a limit to the number of images that can be made responsive?

There are no limits on responsive image variations, there are limits on storage and traffic though, you can find them on our pricing page.