Thanks O'Reilly

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Signing up for OSCON today, I was asked by the O'Reilly site to prove I was human. Of course, it required super-human effort to get it right.

impossible captcha

It took me three tries, and all three captchas were as annoying as this one. This is the one I finally got right. That second character? That’s a seven.

Tip: if you have a case-sensitive captcha, don’t include characters that could be mis-interpreted in your image. The letters W U O P S K Z C V all look the same uppercase or lowercase, especially when distorted as captchas are. I could be the number one, a lowercase L, or a capital I. O might be a zero. Even the capital and lowercase J look fairly similar.

Bryan Price
June 30, 2009 7:27 AM

At least they tell you it's case sensitive. I've seen too many sites where it is, but they don't say so. And when they are all caps, you really don't know either. Captchas suck.

This discussion has been closed.

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