A lot of Shopify store owners have problems with spam. Either your contact form is getting spammed, or you are getting spam customer account registrations or fake accounts signing up to your mailchimp newsletter.
The usual solution is to implement a google captcha. This is the form which ask you to read some garbled text, or to identify traffic lights and cars.
Personally I hate this. For some reason I find it quite difficult to discern the letters. Maybe I’m actually a robot? Or maybe lots of other people hate this too. Either way it slows down the sign-up process and could be a deterrent for some.
The idea is quite simple. You add an invisible field in the form code. Humans can’t see it, but bots can. Bots will fill it out since they fill out every field in a form. Humans will leave it blank because they can’t see it.
Based on this we can simply disable the Submit button if the invisible field is filled. Now your customers can sign up quickly and without any barriers.
Here’s the catch. There is no solution that is 100% guaranteed to stop spam. There are different types of bots out there and they have different ways of submitting forms, and neither the honeypot trap nor Captcha or reCaptcha are able to catch all spam bots.
This is why so many people are still struggling with spam. You have to find out which type of bot is spamming you and use the appropriate technique to stop them.
A web developer can help you experiment with a variety of techniques using trial and error, and the one I would start with is the honeypot trap. It is without a doubt the most user-friendly anti-spam solution and might just be perfect for you.