The traffic you get today is the cheapest traffic you will ever get. That is not a sales line, it is an observation about direction: acquisition costs go one way. So the question worth asking is not how to get more, it is what happens to the audience you already reached when the channel that delivered them changes its mind.

Zak Ali said it on the Unscripted SEO podcast, and the framing has stuck with us:

“The traffic you have today is as cheap as it’s going to be. It’s only going to get more expensive. So as much as you’re getting now, you wanna keep it, retain it.”

He went further in the same answer, and this is the part that matters for anyone deciding where to spend an hour: retention belongs in the job description of every SEO, not in the marketing team’s quarterly deck.

A search ranking is a lease, not a deed

You do not own a position. You occupy it at the discretion of an algorithm that has changed its mind about entire categories of site, more than once, without notice. The same is true of every platform underneath your distribution. You are renting attention, and the landlord sets the rent.

An interview is different in one specific way. Once it is published, it exists as a file on somebody else’s server, an entry in a podcast index, a transcript, and a page with your name on it. None of those go away when a ranking does.

What an appearance leaves behind that a ranking does not

The durable part is not the download count. It is the artefacts:

  • A page on a domain you do not control but cannot be removed from — the host’s show notes, with your name and usually your link.
  • A transcript, which is text that describes what you actually think, in your own words, sitting on the open web where it can be quoted.
  • An entry in podcast directories, which are their own indexes with their own search behaviour.
  • Audio a person chose to listen to for forty minutes. There is no ad format that buys that.

Where this connects to retention is simple. The people who listen to a full interview are the ones most likely to come back directly next time, and direct traffic is the only channel nobody can take from you.

The test: what survives if your rankings halve tomorrow

Run it as an exercise rather than a worry. If organic traffic dropped by half next month, what would still bring you a customer? For most businesses the honest list is short: existing clients, referrals, an email list, and anyone who already knows your name.

Interviews feed the last item, which is the one most businesses have no plan for at all. That is the argument, and it is the reason why get on podcasts is framed around reach that persists rather than downloads.

Doing it so the asset actually exists

An appearance only leaves artefacts if you make sure it does. Four things, none of them difficult:

  • Ask what the show notes will link to before you record, not after. A home page link is worth less than a link to the thing you talked about.
  • Ask whether a transcript gets published. If not, ask for the file and publish your own.
  • Say one specific, checkable thing. A number, a named example, a method. Generalities do not get quoted.
  • Publish your own recap and link it back. Now the appearance exists on a domain you do own.

The mechanics of turning one recording into several of these are in podcasts to links and content.

What we cannot tell you

We have not measured how much direct traffic a single appearance produces, and anybody quoting you a figure for that is guessing. What is measured is Zak Ali’s premise: acquisition gets more expensive, and the audience you already have is worth keeping. The claim that interviews are a good way to keep them is ours, drawn from doing it, not from a study.