# How Fern runs multi-tenant docs for Webflow and ElevenLabs on Vercel

DevFeed: [How Fern runs multi-tenant docs for Webflow and ElevenLabs on Vercel](<https://devfeed.tech/articles/how-fern-runs-multi-tenant-docs-for-webflow-and-elevenlabs-on-vercel-739.md>)

Original publisher: [Read original article](<https://vercel.com/blog/how-fern-runs-multi-tenant-docs-for-webflow-and-elevenlabs-on-vercel>)

Author: Eric Dodds

Published: 2026-06-09T00:00:00Z

Content type: article

Language: en

Sources: [Vercel News](<https://devfeed.tech/sources/vercel-news.md>)

Topics: [migration](<https://devfeed.tech/topics/migration.md>), [SDKs](<https://devfeed.tech/topics/sdks.md>)

Tags: [documentation](<https://devfeed.tech/tags/documentation.md>), [migration](<https://devfeed.tech/tags/migration.md>), [next-js](<https://devfeed.tech/tags/next-js.md>), [sdks](<https://devfeed.tech/tags/sdks.md>), [vercel](<https://devfeed.tech/tags/vercel.md>), [webflow](<https://devfeed.tech/tags/webflow.md>)

## AI overview

Fern runs customer documentation and SDKs from a single multi-tenant Next.js application on Vercel. Its migration from Pages Router to App Router moved 65% of the platform in seven days and accompanied faster deployments and page loads.

## Source excerpt

Fern on Vercel 3x faster time to first byte Page load times reduced by 80% 6 million+ page views per month from 1 million+ unique visitors 65% of the platform migrated from Pages Router to App Router in 7 days Fern helps companies ship developer documentation and SDKs, running customer docs for Webflow, ElevenLabs, and others across custom domains from a single Next.js app on Vercel. Mid-migration from the Pages Router to the App Router, the team moved 65% of the platform in seven days instead of taking on a months-long engineering project. Today Fern deploys multiple times a day, with deploys down to five minutes and page load times cut by up to 80%. Read more