Google Domains Screenshot Generator

Google Domains has a cool feature that generates a small screenshot for your site (379x283 px) when you use the web forwarding feature. The nice thing is that Google doesn't use signatures or complicated parameters, so you can change the URL.

Here's an example: https://domains.google.com/thumb?u=http://500px.com/photo/78702255/lone-tree-of-wanaka-by-james-gladwin. Unfortunately, the URL only works if you are logged in to a Google account and Google Domains is enabled. There are many other services that generate site screenshots: ShrinkTheWeb, PagePeeker and more.

Google Domains is still in beta and requires an invitation. It's a service that allows you to register domains and manage them.