Spamless Guestbook

[Brian]

OK, everybody has had problems with bots etc spamming their guestbooks, ive had many guestbooks over the last four years with no spam because of my technique that i use.

Firstly, i use two guestbooks, Advanced Guestbook and Viper Guestbook.
The norm is to throw them into a dir named guestbook or gbook or something similar.
Instead make a directory called advgb or vipgb or something similar, it really dosent matter as long as its not bog standard.

Also, i have my guestbooks in an IFRAME from a page called advgb.php or .html or whatever.
The IFRAME works like this

<IFRAME frameBorder="0" width="100%" height="1200" scrolling=auto src="http://www.domainname.net/advgb"></IFRAME>

OK, bots can go through code and find a link to guestbook.html or advgb.html and spam it pretty easily. Heres how i combat this.
Instead of putting in a standard HTML link, for eg

<a href="advgb.html">

. Use a javascript link like this

<a href="javascript:window.location='adv'+'gb.html'">

They have failed to read this and all of the above have kept my book spam free for years. Now this dosent stop people coming in and spamming, but it does stop the bots. Im sure there are other techniques, so you leave your comments / other techniques as replys.

Please ignore the \ in the code, i dont know why it keeps appearing there

[eUKhost.com]

Thanks Brian,

Great help from your side for guestbook users. This thread would remain on top in tutorials section.

[Brian]

Cheers, ill do more as i get time

[bccruzer]

whoa. i never though about that! great code, even though i don't use a guestbook there will be somnehwere whre this code is useful

[unplugged]

Will have a go we have a captcha system on some of ours but the amount of kak that still comes in mostly from people trying to train their bots by posting junk like hfdjkfhjkdfhjk in an attempt to try and break it.

[rich]

Good innovative technique, its a preety good way to get those bots away i
guess and im sure it will help a lot of people who will apply this. Looking forward
to get some more stuff like this from you.Anyways thanks for sharing it with us
out here.

[handy]

Can't they (bot) learn a bit later this technique and go around it?
I have same problem with PHP script here:
www. handy.com.ua/?mode=orderform
can some help me to add something similar in php?

[eUKhost.com]

bots are designed to learn all technique and that is important for survival of spammers. We have no option but to keep on improving security of our servers and applications and you should be happy at eUKhost to see server security being top notch.

We keep on encouraging our staff an customers to find new things which will help other customers to improve security of softwares installed on their website hostings.