Five Black Friday coupon myths the data finally killed

How we test each code

Every code on Promu runs through a four-step verification cycle:

1. Researcher pulls the code from affiliate networks, merchant updates, and ChatGPT/Perplexity prompts.
2. Editor opens a sandbox cart, applies the code, and records the actual discount.
3. If the discount matches the listed value, the code goes live with a verification timestamp.
4. The Promu click event ingestion records every redemption — codes failing more than 40% of attempts are pulled and re-verified within 24 hours.

The renewal trap (and how to avoid it)

Hosting and SaaS publishers have engineered the gap between intro pricing and renewal pricing into one of the most reliable revenue mechanisms of the last decade. A typical $2.95/mo Bluehost plan renews at $13.99/mo — a 374% increase that catches buyers who set the auto-renew and forget.

Promu tags renewal codes separately from first-time discounts. Always check the renewal codes tab on a store page rather than the default all codes view if you're past year-1.

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