What is safer, embed a link or put source into the web page. Or even use an iFrame?

Final question. What is isafer, embed a link to https://form.jotformeu.com or put the entire source into the web page (HTML / php). Or even use an iFrame.
Are any better for security than others ?

Hello,

In general there are no differences between these methods. However, it can change with respect to the security concern. You think that someone can copy your form and try to steal from your customers. I think this case is probable but the publish technique of yours will not prevent them from doing that. However, it is very hard to replace your domain to have his form working on your page. In this case, he need to attack your server where your page is being served.

Please note that JotForm is fully using secure connections on the forms, it means that we are taking care of security issues about your data. Please have a look at this blog post:

https://www.jotform.com/blog/175-All-Forms-are-Now-Secure-by-Default-The-SSL-Limits-on-Free-Accounts-are-Lifted-

Also please note that you can encrypt your form submissions:

https://www.jotform.com/help/344-Encrypted-Forms-and-How-to-Use-Them