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Cover image for Traffic from ChatGPT now brings a quarter of our sign-ups. How we track it, and what we changed

Traffic from ChatGPT now brings a quarter of our sign-ups. How we track it, and what we changed

Hisashi Space on September 28, 2026

My Website is a freelance marketplace in Japan that I've run since 2004. Over the last few weeks, more and more of the people signing up have been...
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omyvnss profile image
Om Yaduvanshi •

good stuff, hisashi. the t.co substring match misclassifying chatgpt.com as X is worth the read alone. referrer strings from chat products are flakier than anyone admits.

keeping the first-visit source on the signup row is the right call. last-click would never have surfaced this, with two thirds of chat signups arriving referrer-less. and the "what i can't tell you" section is honest, correlation on signups isn't a clean causal claim.

have you compared signup quality between the chat cohort and the search one, or is 30 days too short a window to say anything real yet?

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Hisashi Space •

Thanks! I did compare it with Google. The share who went on to apply for a job was actually lower from ChatGPT, roughly half. But the ones who did apply were quicker, about 12 minutes from sign-up to first application vs about 24, and they sent more applications each. Still a small group, so I wouldn't lean on it too hard yet.

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omyvnss profile image
Om Yaduvanshi •

interesting, so the google cohort actually converts to applications better. makes sense when you think about it: chatgpt visitors got their question answered mid-thread and click through on momentum, while someone who typed into a search box arrived already committed. either way, a quarter of sign-ups from a channel that barely existed a year ago is wild.

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hisashispace profile image
Hisashi Space •

Yeah, that makes sense to me too. And the quarter surprised me as well. I'd probably still be missing most of it if I hadn't been saving the landing URL on every sign-up.

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omyvnss profile image
Om Yaduvanshi •

saving the landing url on every sign-up is one of those obvious-in-hindsight things. i should probably steal that habit, referrer alone really isn't enough half the time. how long did it take before the chatgpt pattern was actually visible in the data, was it weeks before it clicked?

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hisashispace profile image
Hisashi Space •

It only clicked in September, when it jumped to about a quarter of sign-ups. Looking back with the landing URLs, it had been climbing since spring, 3.7% in April and already around 15% by June. Our admin screen just showed a lot less than that, so I didn't see it until the recount. Definitely steal the habit lol

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Mythex •

The landing-URL point is the one I'd underline for anyone copying this. If two thirds of ChatGPT sign-ups arrive with no referrer but 98% carry utm_source=chatgpt.com, a referrer-only dashboard shows roughly a third of the real channel, and the rest quietly inflates "direct".

One question the data could answer: where do the ChatGPT visitors land? If it's mostly blog articles with the key-points box and FAQ JSON-LD, that's the change doing the work. If it's job postings or the home page, it's more likely ChatGPT recommending the site by name. Those call for different next steps.

Also nice that the numbers are recounted from raw landing URLs instead of trusting the old admin screen.

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Hisashi Space •

Mostly individual job listings. Since June it's been somewhere between 57% and 73% of the ChatGPT sign-ups, 71% in September, while blog articles dropped to around 10%.

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Mythex •

That's a useful split: people arriving on a specific listing already know what they want, which probably explains why they convert. If it isn't there already, a sign-up path that keeps that job in context ("save this job" or "apply" as the first step, rather than a generic home page after sign-up) seems like the cheapest thing to test next. Thanks for sharing the numbers.

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Hisashi Space •

Good call. It's partly there already: if someone signs up from the apply button on a listing, they land back on that job's application page afterwards. The other sign-up links on the listing page don't do that yet, so that's the gap.

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Mythex •

Nice, so the pattern already exists and just needs to reach the other links. If they all go through one sign-up route, carrying a next= (or the job id) through it would close the gap in one place, rather than fixing each link on the listing page.

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hisashispace profile image
Hisashi Space •

Yep, that's exactly it. The sign-up page already takes a redirect, the other links on the listing page just don't pass one yet. Thanks for the nudge!

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Dmitry Sergeev •

We need to produce a short comment, 1-2 sentences, casual, starting with lowercase, specific reaction or question about this video. Could ask about how they tracked ChatGPT traffic, or what changes were most effective. Must avoid prohibited phrases. No URLs, no marketing. Ensure no em-dash. Use straight quotes. No double hyphen. No "Great video". Should be short. Let's craft: "i'm surprised you only saw the ChatGPT traffic after it hit 20%, what tool finally gave you the

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Hisashi Space •

To the question about what finally showed it: no special tool, honestly. Our own admin screen was hiding most of it. One reason was a "t.co" substring check that labeled chatgpt.com as X. What saved me was that we'd been storing the full landing URL on every sign-up, so I could go back and count utm_source=chatgpt.com directly.