One site, many eras

Open this page from classic Mac OS, early Windows, Linux, mobile devices, virtual machines, or a modern browser. The core page intentionally uses web technology that remains understandable to very old browsers.

Old browser friendly Progressive compatibility: old browsers receive a clean, usable page; newer browsers add rounded corners, shadows, responsive sizing, and richer diagnostics.
 

Compatibility tests

Check HTML, CSS, JavaScript, forms, images, character encoding, and basic browser behavior.

Open tests

Small games

Play Snake, Memory, and a reaction-time game. They use DOM tables and old-style JavaScript instead of canvas.

Open games

Client information

JavaScript: Not detected yet

Platform: Unknown
Screen: Unknown

Current browser string

JavaScript is disabled or unavailable.

No client clock available.
Very old browser note: the page itself is intentionally simple, but the hosting provider may still require modern HTTPS/TLS before the HTML can be downloaded. A local plain-HTTP test method is included in the README.