A few sentences by email is all it takes to start — every application gets reviewed individually and answered directly, not by a support queue.
A short note on your link-building work — in-house, client, or outreach — and your primary market. No form required.
Every application is read individually — there's no automated approval and no queue of unrelated leads to sort through.
An email confirms whether you're approved and how to start submitting placements once you are.