CalcBuilder Forum

Captcha on Fom

User Dan Ellmore 2026-04-17 10:29:58

Hi SIlvia,

My customer just made a good suggestion - can we add a Google recpatcha on the form please on the Lincolnshiresolar.co.uk form above the submit button.

I added a captcha in form fields, and then added it in the table on form layout but it did not display so I think I have the settings incorrect - could you check please

Many thanks!

Dan

Moonsoft support 2026-04-17 10:57:20

Hi,
with the latest version, the google recaptcha v3 can be added to your forms just introducing the google keys configuration (site and secret). The parameters should be set here:

System->Global configuration->calcbuilder->preferences

This is an invisible recaptcha for the user that automatically will filter spam submissions. You should see the google recaptcha icon showing in the page. The old 'visual' recaptcha (the field you added), is kept for backwards compatibility, but is increasingly being beaten by bots and AI, (even Google recaptcha is not perfect, and some advanced bots can bypass it).

With the Google v3, you can prevent many of the simple attacks that perform automatic submissions, you can enable it and try for some time to check if it does the work.

As you have also custom sections to introduce scripts, and also the php section to perform validations at the server side, you could introduce any other captcha system if you have unwanted traffic in the future.

Hope this helps, regards
Silvia Martín
Moonsoft Team

User Dan Ellmore 2026-04-17 11:10:45

Thanks SIlvia

I have enabled the V3 recaptcha and added it to the preferences on the global configuration

We have a geoblocker installed on the site to ut down lots of spam from countries the customer does not cover with their services which also helps.

thanks again

Dan

Moonsoft support 2026-04-17 15:22:56

Great, yes, the combination of several strategies is usually the best option. We close this ticket then, feel free to open a new one if you have any other question,.

Kind regards
Silvia Martín
Moonsoft Team

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