---
title: Can I route based on letter casing on Vercel?
description: Information on whether or not it is possible to route based on letting casing with Vercel.
url: "https://vercel.com/kb/guide/can-i-route-based-on-letter-casing-on-vercel"
published: 2025-11-03
last_updated: 2026-10-02
authors: Matthew Sweeney
install_vercel_plugin: npx plugins add vercel/vercel-plugin
search_with_vercel_cli: npx vercel@latest kb search "<query>"
read_with_vercel_cli: "npx vercel@latest kb inspect can-i-route-based-on-letter-casing-on-vercel"
---

Vercel provides the ability to route requests based on the three different configuration properties:

- [`redirects`](https://vercel.com/docs/project-configuration#project-configuration/redirects)
  
- [`rewrites`](https://vercel.com/docs/project-configuration#project-configuration/rewrites)
  
- [`routes`](https://vercel.com/docs/project-configuration#legacy/routes)
  

While these properties provide different methods and degrees of flexibility when it comes to routing, it is **not possible** to route based on letter casing with configuration properties.

## Using Serverless Functions

By using [Serverless Functions](https://vercel.com/docs/functions), you can take advantage of code to achieve whatever outcome you require.

For more information on how to do this, take a look at the [Dynamic Routing](https://vercel.com/guides/how-can-i-increase-the-limit-of-redirects-or-use-dynamic-redirects-on-vercel#using-a-serverless-function) support article which contains code examples that allow you full flexibility over routing, the ability to handle errors, and caching headers for maximum performance.

## Related Documentation

- [Vercel Functions](/docs/functions)

## More Vercel Functions guides

- [Vercel vs Webflow Cloud](/kb/guide/vercel-vs-webflow-cloud): Compare Vercel and Webflow Cloud for deploying Next.js and Astro apps, including runtime, framework support, storage, pricing, and where your code runs.
- [Next.js on Vercel vs Webflow Cloud](/kb/guide/next-js-on-vercel-vs-webflow-cloud): Compare running Next.js on Vercel Functions with Fluid compute against Webflow Cloud on Cloudflare Workers. Learn how Next.js feature support, runtimes, storage, pricing, and developer experience differ so you can choose the right platform.
- [Astro on Vercel vs Webflow Cloud](/kb/guide/astro-on-vercel-vs-webflow-cloud): Compare running Astro on Vercel Functions with Fluid compute against Webflow Cloud on Cloudflare Workers. Learn how Astro feature support, runtimes, storage, pricing, and developer experience differ so you can choose the right platform.

## Reference Architecture

Choose a stack and work through the decisions behind it, with curated documentation, guides, templates, and courses to help you build.

- [Agent stack](/kb/architecture/agents): Build and operate agents with models, tools, and durable workflows.
- [Web applications](/kb/architecture/web): Choose rendering, data, authentication, and caching approaches.
- [Backends](/kb/architecture/backends): Choose a runtime, connect services, and run background work.

[Browse all stacks](/kb/architecture)

## Build with prompts

Build an app, extend an agent, or improve your project with ready-to-use prompts for your coding agent.

[Browse the prompt library](/kb/prompts) · [Read the Markdown index](/kb/prompts.md)

## Search guides from your terminal

Search the Knowledge Base and read guides as Markdown with the Vercel CLI. No login required.

```bash
# Find guides by keyword
npx vercel@latest kb search "rewrites and redirects"
npx vercel@latest kb search "AI SDK streaming"

# Show the latest guides
npx vercel@latest kb

# Print a guide as Markdown, by slug or URL
npx vercel@latest kb inspect <guide>
```