December 8, 2019

A Simple Mathcha

If you’ve ever visted the home of my text messaging sites, freetext.biz you may have noticed it has a contact form. Lately, I’ve been getting about 100 messages / day on the contact form. The problem with that though, is that only 1-2 of them are from actual humans. The rest are from spam bots sending me URLs.

I’m not sure why a spam bot would want to send me a URL in my email, but that’s their perogative.

Anyway.. you’ll notice now that I added a simple math captcha to the form. Here’s what it looks like:

mathcha form

Why did I choose a mathcha instead of the standard image? It’s because I think that images are sometimes hard to read, and usually annoy visitors. Don’t believe me? Check out this ticketmaster example:


bad ticketmaster captcha

(note: captcha is an acronym for completely automated public Turing test to tell computers and humans apart… mathcha is a made up word that really means math captcha)

If you want to do something similiar, here’s how you can do it in just about 10 lines of code:

on your form page:


on your form handler:

There ya go. That's a 30 second mathcha. Feel free to use it however you want. I know it's really simple stuff, but let me know if it actually helps anybody.

About Ryan Jones

Ryan Jones is an SEO from Detroit. By day he works as a manager of SEO & Analytics at SapientNitro where his team performs SEO for Fortune500 clients. By night he's either playing hockey or attempting to take over the world with his own websites - which he would have already succeeded in doing had it not been for those meddling kids and their dog. The views expressed here have not been paid for and belong only to Ryan, not any of his employers or clients. Follow Ryan on Twitter at: @RyanJones, add him on Google+ or visit his personal website: www.RyanMJones.com

Comments

  1. Tsk HG, that’s some horrible (X)HTML you’re spitting out there!

    Don’t you know you’re a role model to the kids nowadays?

  2. XHTML? what’s that? hehehe

    It’s all about the 4.01 transitional baby!