[thelist] Preventing spam spiders from reading mailto links.
Liam Delahunty
ldelahunty at britstream.com
Tue Dec 9 04:05:11 CST 2003
I've a number of techniques and online forms for generating the code here:
http://www.liamdelahunty.com/tips/email_obfuscation_for_spambots/
I've got the following types:
0. Replaces the at @ sign with @ in the link text and tag. It appears
as a readable link in the browser
1. JavaScript to add the two sections name + @ + domain.
2. Bin2hex
3. Ascii encode
4. Hex & Ascii encode
I tend to use the ASCII encode on sites. None of my addresses on pages above
have been harvested by spam bots.
<tip type="Spambots" author="Liam Delahunty">
On your web site consider using a unique email address such as web_contact@,
just for contacts via the web site so you can filter off messages once/if it
gets harvested by spambots.
</tip>
Kind regards,
Liam Delahunty,
Mega Products Limited
-----Original Message-----
From: thelist-bounces at lists.evolt.org
[mailto:thelist-bounces at lists.evolt.org]On Behalf Of Philip Weller
Sent: 07 December 2003 05:14
To: thelist at lists.evolt.org
Subject: [thelist] Preventing spam spiders from reading mailto links.
Hello, all.
Recently, while admiring the HTML on a site I was visiting (as Web geeks
often do) I noticed that they were hiding their e-mail address from spam
bots by rendering it in escaped character entities. I've since implemented
this technique in my just launched personal site (www.philipweller.com).
I was wondering if those of you much more experienced than myself might have
some real-world feedback as to the effectiveness of this technique. Are
there any techniques you use and can recommend? (I'm aware of Daniel
Benjamin's Hiveware Enkoder (http://hiveware.com/enkoder_form.php) and think
he's providing a wonderful service, but I've chosen not to use it because it
relies on JavaScript and won't work for users who've disabled it.)
Many Thanks,
Philip Weller
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