How do I install a visitor ID tag on Duda?
On Duda, your visitor identification tag goes in: Page settings > Header HTML (or use HTML Widget for on-page scripts). The install itself takes minutes; the part that goes wrong on Duda is below.
Where the tag goes
- Page settings > Header HTML (or use HTML Widget for on-page scripts).
- Paste your vendor’s tag snippet exactly as issued. Do not wrap it in extra script tags or reformat it.
- Publish or deploy, then verify (below) before trusting data.
What breaks visitor tracking on Duda?
Duda's editor runs jQuery 3.0 internally; loading a newer jQuery version will break the editor UI.
How do you verify the tag fires?
Publish page and check browser console; verify script tag in head using Ctrl+U.
Then run through the labeled QA checklist before you rely on the numbers, and set expectations with the match-rate calculator — no vendor identifies every visitor.