Solutions
A form behind the code
Build the form, put it behind a code or a short link, and read the submissions in your account. No embed, no separate service, no wondering where the data went.
Built and hosted here
Fields, labels, required flags and a thank-you message. The page renders on a phone without a framework, which matters because a lead-capture form is almost always opened on a phone, standing up, on a stranger's network.
The submissions are yours
They sit in your account, exportable as CSV or Excel. Nothing is shared with anybody, and the form does not load a third-party script that would be doing its own collecting alongside yours.
Attributed to the code that produced it
Because the form sits behind a code, a submission carries the scan that led to it โ so "which sign produced leads" is a report rather than a guess.