Am Donnerstag, den 28.05.2009, 12:27 +0530 schrieb Nandeep Mali:
> On Thu, May 28, 2009 at 11:49 AM, Tiziano Müller <dev-zero@g.o> wrote:
> > An alternative (which works quiet well with my blog):
> > have an empty css-hidden input field in the form and check for it being
> > empty when submitting the form. Bots will fill it out since they ignore
> > CSS mostly.
> > Advantage: it's hidden for all users and for those where it isn't
> > (Screen-Readers) you can add a normally hidden description stating this
> > is a spam-catching-field intentionally left blank.
> 
> Interesting idea. :) But once they get to know about the trick, they
> might just bypass it. A blog will not be as lucrative as Gentoo site,
> so the bot-makers could go to extra lengths to get their bots working.
no, not even the Gentoo site is worth the bot-maintainers time.
But instead of returning an error, just say that everything's ok and
discard the request silently.

-- 
Tiziano Müller
Gentoo Linux Developer, Council Member
Areas of responsibility:
  Samba, PostgreSQL, CPP, Python, sysadmin, GLEP Editor
E-Mail   : dev-zero@g.o
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