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A Vercel log drain sends DevTune the requests that AI crawlers and answer fetchers make to the projects you choose, with no code changes. The drain filters on Vercel’s side, so other visitors’ requests never leave Vercel. It covers production deployments only.

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Before you start

  • A paid plan that includes AI Traffic, and project management permission. See Set up AI Traffic.
  • A Vercel Pro or Enterprise team.
  • IP Address Visibility › Show in Log Drains turned on in your Vercel team’s settings. Show in Vercel Dashboard doesn’t affect the drain.

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Connect Vercel

  1. In Settings › Integrations, find Vercel under Crawler sensors and select Set up.
  2. Select Connect Vercel, approve DevTune’s integration on Vercel, and choose the team and the projects it can access.
  3. Back in DevTune, choose the Vercel projects to measure and select Create drain.
  4. DevTune tests delivery and creates the drain. Each host the drain reports is listed with the sensor that counts it.
A host that Cloudflare pull or edge middleware already reports stays on that sensor, and the drain’s requests for it are dropped, so no request is counted twice.

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Check the drain is working

  1. Request a page on a chosen project’s production domain with a crawler user agent. Replace the address with your own:
  2. In Settings › Integrations, reload the page. Within a few minutes the Vercel row changes from Waiting for data to Active, with Last ingest and a time, and the host appears under Host.
  3. Don’t expect the test request in the verified totals. It didn’t come from OpenAI’s network, so it isn’t counted as a verified crawl.

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Client IP addresses

DevTune checks each crawler’s address against its operator’s published networks, then discards it. Keep Show in Log Drains on. With it off, Vercel still delivers the requests but without client addresses, so every AI request is stored with its identity unknown. See crawler identity checks for what each verdict means.

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If something goes wrong

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Disconnect Vercel

Select Manage, then Disconnect Vercel. DevTune deletes the drain on Vercel. If Vercel no longer accepts DevTune’s access, delete the DevTune drain in your Vercel team’s Drains settings.

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Next steps