We implemented the below anti-spam question code into our html contact form. Also google recaptcha is active on the form. But still getting spam of dating and automated other spam messages.
Here is the anti-spam question code:
<td align=center><font class="err"><TMPL_VAR msg></font><label for="turingtest"> <strong>Anti-Spam Question:</strong> Which is the wrong name of this website?: example, link or example.com? *</label> <br> <input type="text" required="required" pattern="( )*(link)( )*" title="Pick the fluffiest animal"/> <br><input name="send" type="submit" name="btn" value="<TMPL_VAR lang_send_message>"></td>
So this does not work. Maybe some automated spammers are using different techniques. What else we can do?
And how to implement much more powerful anti-spam question and approach into html contact form?
Note: Using a server with CentOS and Apache. Plus perl script and their html pages.