“Growth hack” usually means a trick that worked once for someone else. The changes that reliably help are less exciting and more repeatable: small adjustments to things you already own, where the cost is an afternoon and the effect is measurable.
Every field is a reason to leave. Ask only for what you genuinely need to have the first conversation; you can qualify further once someone is talking to you. Teams almost always discover that two or three fields they considered essential were serving internal convenience.
Traffic sent to a generic homepage converts worse than traffic sent to a page that continues the promise the ad made. If the ad says something specific, the page should open with it. This is the cheapest improvement available to most paid accounts.
Most sites have pages that once ranked and were never touched again. Updating an existing page that already has authority is usually faster and more reliable than publishing a new one from zero. Start with pages ranking just below the fold of page one.
Place credibility where the decision actually stalls — next to the price, next to the form, next to the commitment — rather than in a testimonials section nobody scrolls to. Use only claims you can stand behind.
Every item above needs a reliable before-and-after. If conversions are double-counted or misfiring, you will draw confident conclusions from noise. Sorting measurement first makes everything after it cheaper.
Changing five things at once tells you the total effect and nothing about the cause. Stating the expected result beforehand also protects you from explaining any outcome after the fact.
OajEx runs this kind of work inside web and performance marketing engagements. Book a strategy call.