Funnel hacking is commonly used to describe studying successful funnels to understand their structure, offers, messages and customer journey. The useful part is analysis—not copying protected creative work.
Study the journey
Observe traffic sources, page sequence, offer structure, follow-up and conversion steps.
Separate principle from execution
A competitor's sequence can reveal a pattern without giving you permission to copy wording, images, design or proprietary assets.
Compare multiple examples
One funnel may work because of brand strength, economics or audience conditions you cannot see.
Turn observations into hypotheses
Use the research to improve your own offer and testing plan rather than cloning another business.