# IISpeed

> IISpeed is a PageSpeed optimization module for Microsoft IIS, developed by We-Amp B.V. It is transitioning to mod_pagespeed 1.1 which includes a native IIS port.

## Status

IISpeed is transitioning to mod_pagespeed 1.1. Existing licenses transfer at no cost. No hard cutoff date — IISpeed continues to work, but new development targets mod_pagespeed 1.1.

## Key Pages

- [Home](https://iispeed.com/): Transition announcement and FAQ
- [Download](https://iispeed.com/download/): Where to get the installer (mod_pagespeed 1.1 IIS MSI)
- [Buy](https://iispeed.com/buy/): How to purchase or transfer an existing license
- [Install](https://iispeed.com/install/): Installer overview for IIS
- [Pricing](https://iispeed.com/pricing/): License pricing and free-transfer policy
- [Documentation](https://modpagespeed.com/1.1/docs/): Full IISpeed documentation
- [FAQ](https://iispeed.com/faq/): Frequently asked questions
- [Support](https://iispeed.com/support/): Contact and known issues

## Upgrade Path

1. mod_pagespeed 1.1 (native IIS port) — free license transfer
2. ModPageSpeed 2.0 — available as [native ASP.NET Core middleware](https://modpagespeed.com/docs/aspnet-getting-started/), or on nginx/Apache/Envoy

## Related

- [ModPageSpeed](https://modpagespeed.com): The ground-up C++23 rewrite
- [We-Amp](https://we-amp.com): The company behind IISpeed