One-click website speed optimization
Add a single script tag. InstantOpt analyzes your visitors' behavior and automatically applies intelligent prefetching, image optimization, and caching — no code changes required.
Add to your site <head>
<script src="https://cdn.instantopt.io/v1.js" data-site="YOUR_ID" defer></script>Simple pricing
Pro
Everything you need to make your site blazing fast
- ✓Intelligent link prefetching
- ✓Automatic image lazy-loading
- ✓Smart caching headers
- ✓Real-time performance dashboard
- ✓Up to 10 websites
- ✓Priority support
Cancel anytime. No contracts.
FAQ
How does InstantOpt work?
You add our lightweight script tag to your site. It monitors which links users hover over and prefetches those pages in the background, so navigation feels instant. It also applies image lazy-loading and optimal cache headers automatically.
Will it slow down my site?
No. The script is under 1 KB gzipped and loads with the defer attribute, so it never blocks rendering. Prefetching only happens when the browser is idle and the user shows intent to navigate.
Do I need to change my existing code?
Not at all. One script tag is all it takes. InstantOpt works with any website — WordPress, Webflow, custom HTML, or any framework.