This review assumes you are looking at the popular open-source "Node Unblocker" scripts (often found on GitHub) that users try to host for free to bypass web filters.
Harnessing Node Unblocker on Vercel: A Modern Approach to Web Proxying node unblocker vercel
Create the folder structure Vercel requires: This review assumes you are looking at the
// Stream or buffer small responses const body = await fetchRes.arrayBuffer(); res.send(Buffer.from(body)); catch (err) res.status(502).send('Bad Gateway');mkdir -p api
const express = require('express'); const Unblocker = require('unblocker'); const app = express(); const unblocker = new Unblocker( prefix: '/proxy/' ); // Use the unblocker middleware app.use(unblocker); app.get('/', (req, res) => res.send('Node Unblocker is active. Use /proxy/URL to browse.'); ); const PORT = process.env.PORT || 8080; app.listen(PORT).on('upgrade', unblocker.onUpgrade); Use code with caution. [Source: YouTube - Node Unblocker Guide, Rebrowser] 3. Configure vercel.json It’s free (for hobbyist bandwidth limits)
Conclusion: While "Node Unblocker" can be adapted to run on Vercel's serverless infrastructure, it is highly discouraged. The architecture is not suited for proxy traffic, resulting in poor user experience (slow speeds, timeouts), and it directly violates Vercel's Terms of Service, posing a risk to the user's account and legal standing.
Vercel expects server-side logic in an api/ directory (or as a main entry point defined in vercel.json). Create a file named index.js in your root: javascript