The three numbers
- Opt-in rate = sign-ups ÷ page visitors. Shows whether the offer and page are appealing.
- Early engagement — opens, clicks and replies on your welcome emails. Shows whether the right people signed up.
- Conversion to your offer — calls booked or purchases from subscribers who came through this lead magnet.
Compare against yourself
Published benchmark numbers vary widely by traffic source and niche. It is more useful to compare a change against your own previous results: new headline, new cover, new format.
Common follow-up questions
What if many people sign up but nobody buys?
The topic may attract people who are not a fit for your offer. Move the lead magnet closer to the problem your paid offer solves.
How long should I test a change?
Long enough for a meaningful number of visitors. With low traffic that may take weeks.
Updated 2026-11-15. General information; not legal, medical or financial advice.