protect email address from spiders

muzikool · 15 Jun 2004

I understand that you can code your email in such a way on a web page so that it can't be picked up by a web spider. So what is the best way to do it and can someone post the code I need to use?

~bk · 15 Jun 2004

You mean so you don't get spam, right?

NetRyder · 15 Jun 2004

One way is to use something like: netryder [at] osnn [dot] net
However, certain bots have learned to overcome tricks like this. Another more effective way is to type the address into an image, and use the image in place of the address.

~bk · 15 Jun 2004

What if you use a PHP Mail Form? Would you receive spam?

NetRyder · 15 Jun 2004

~bk said:
What if you use a PHP Mail Form? Would you receive spam?

If the actual email address isn't displayed in the HTML code that's generated, no...the bots won't be able to pick it up.

~bk · 15 Jun 2004

NetRyder said:
If the actual email address isn't displayed in the HTML code that's generated, no...the bots won't be able to pick it up.

Ohh.. ok. Thanks.

muzikool · 15 Jun 2004

Yeah, mainly to prevent spam. I don't know anything about the PHP Mail Form. I found out that javascript can be used to make it work. Is this an effective way?

leedogg · 15 Jun 2004

<SCRIPT LANGUAGE="JavaScript">

</script>


Then in the <BODY> section, insert this where you want your email address(es) to appear:

<SCRIPT LANGUAGE="JavaScript">

</script>

Replace "yourname" with your email name, "yourdomain" with your domain name and "tld" with "com," "net," "org" or what ever. For example, jemail("joe","blow","com") will display as joe@blow.com, a fully functional link.

NetRyder · 15 Jun 2004

muzikool said:
Yeah, mainly to prevent spam. I don't know anything about the PHP Mail Form. I found out that javascript can be used to make it work. Is this an effective way?

That's possible too...you would use something like this:
http://www.blazonry.com/javascript/js_hiding.php

EDIT: It's pretty much the same thing leedogg just posted.

leedogg · 15 Jun 2004

NetRyder said:
That's possible too...you would use something like this:
http://www.blazonry.com/javascript/js_hiding.php

EDIT: It's pretty much the same thing leedogg just posted.

ha. slowpoke 😉

NetRyder · 15 Jun 2004

leedogg said:
ha. slowpoke 😉

muzikool · 15 Jun 2004

Thanks leedogg and NetRyder. 🙂

Another thing, what code do I add to the javascript in <body> in order to specify the font, size, and color of the text displayed?

j79zlr · 15 Jun 2004

This used to work, not sure if they've fixed it, probably have, but I dont get any spam from my email address. use iso codes,

sample@example.org

is

sample@example.org

Geffy · 15 Jun 2004

the bots read the iso codes now

PHP:

<?php
// My Email Address
$myEmail = "email@mydomain.com";

// Additional Email Headers
$emailHeader = "From: {$_POST['fromEmail']}\r\n";
$emailHeader .= "Content-type: text/plain\r\n";
$emailHeader .= "X-mailer: PHP v" . phpversion();

// Send The Email
$email = mail($my_email, $_POST['subject'], $_POST['message'], $emailHeader);

if ($email) {
echo "Email Sent";
} else {
echo "Email Failed";
}

This assumes a web form which has at least three fields
a input[text] section with its name set to "fromEmail"
a input[text] section with its name set to "subject"
a textarea with its name set to "message"

muzikool · 15 Jun 2004

Still wondering how to code for text size, color, and font within the javascript for use with what leedogg posted earlier. I don't want the address displayed blue and underlined.

Unleashed · 15 Jun 2004

Or you could do it as such:

me -at- domain -dot- com

Geffy · 15 Jun 2004

the spiders will no doubt learn how to read it in that format as well, they soon may be able to understand how to parse the javascript for the information they are looking for

SPeedY_B · 15 Jun 2004

They can parse anything, keep in mind the people who invent the robots are internet users also, and therefore know the methods used to try and deter their own robots.

They can even read images and have now been made 'intelligent' so they can learn and post to almost any HTML form. It is quite a pain in the ass, however robots are being used less and less in favour of either huge lists or randomly generated names.

protect email address from spiders

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