A small JS plugin to prevent common spam from being posted to forms

Uses a few different techniques to weed out spammers, and bots

The amount of time spent on the page is timed. A human user isn't going to fill out an entire contact us form in a couple seconds.

Check the IP of the user, against top countries known for spam. Using https://www.spamhaus.org/statistics/countries/ and https://www.projecthoneypot.org/comment_spammer_top_countries.php?dt=30 Russia, China, Ukraine, India, Thailand If the country is detected the form is replaced with a message asking to call if they need help.

A spammer could possibly spoof their IP, so an additional check is made against their email. if the TLD matches that of a typical spammer the form is replaced with a message asking to call if they need help. These are currently .ua and .ru

I've noticed a lot of spam doesn't include a valid phone number. So this is a standard check that verifies the number could be valid User is presented a message asking to enter a real number

I've added a form field that is hidden to the average user. A simple bot isn't going to know it's hidden, and will fill it out. upon submission if this field has text it is not actually submitted