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DNS rebinding means you shouldn't allow untrusted domains to resolve to a localhost IP address...

You can use xip.io

127.0.0.1.xip.io www.127.0.0.1.xip.io files.127.0.0.1.xip.io doc.127.0.0.1.xip.io

all resolve to 127.0.0.1

For another memorable one try .localtest.me See http://readme.localtest.me/ for more details.

I use 42foo.com which does exactly that.

Thanks! Nice and short, too.

I set up Worksonmy.computer to do the same yesterday

There is also lvh.me