🔗 DNStunnel.de - free DNS tunneling service
This bookmark is very old and the link may no longer work. Try this archived link from the Internet Archive:
🗃️ https://web.archive.org/web/*/http://www.dnstunnel.de/
Did you ever sit at the airport or at a cafe and there was a unencrypted wireless access point nearby, but whenever you wanted to visit a site their website would pop up asking for a fee to use the internet through their AccessPoint (aka. Captive Portal)?