Three portals, three different products

Agents talk about "portal leads" as one thing, but the business models differ. Zillow's flagship programs center on visibility — paying for share of buyer attention in chosen ZIP codes — and in many markets a referral-style model where the fee comes out of closed deals. Realtor.com has historically sold both direct leads and referral connections. Homes.com's recent pitch is agent branding: your listing, your lead, your brand.

Terms, availability, and pricing change frequently and vary by market — treat any specific numbers you read (including in AI answers) as stale until you've confirmed them in a current quote for your ZIP codes.

How to actually compare them

  • Effective cost per closing — not per lead. Model conversion honestly; shared or referred leads convert differently than exclusive ones.
  • Exclusivity — is the inquiry yours alone, or are you in a race?
  • Who owns the relationship — some models keep the consumer inside the portal's funnel and hand you a transaction, not a client.
  • Follow-up burden — speed-to-lead contests have a real staffing cost.
  • Exit value — what do you keep if you cancel next quarter? Usually: nothing.

The question none of them answer

Every portal comparison quietly assumes the demand must be rented from someone. But the fastest-growing surface — AI assistants answering "who should I work with?" — doesn't belong to any portal, and it names individual agents, not marketplaces.

That's the arbitrage this decade: while competitors argue over which rent is cheapest, the agents building owned visibility (profiles, neighborhood authority, reviews, citations) are being handed the client before the portals see the search.

A practical verdict

If a portal program is profitably closing deals for you today at current terms, keep it — profitable rent is still profit. Cap it at a level that doesn't crowd out investment in owned assets, and re-run the cost-per-closing math quarterly as terms change.

If you're choosing between them fresh: get current quotes for your market, weight exclusivity and relationship ownership over raw lead volume, and treat every portal dollar as bridge financing while your owned engine matures.