Bulk Redirects with Hono

Domain migration 301 redirect validation errors were occurring in Google Search Console, so we implemented a Hono-based redirect on Cloudflare Workers instead of using Cloudflare Bulk Redirects.

https://zenn.dev/jp/articles/2026-01-05-bulk-redirects-with-hono

↑ 日本語版

Problem

The "Change of Address" screen in Google Search Console showed "couldn't fetch page" errors, preventing domain migration completion for an extended period.

Solution

A Hono application deployed on Cloudflare Workers that provides 301 redirects. This implementation allows Google Search Console to successfully validate the domain migration.

Project Creation

╭────────────────────────────────────────────────────────────╮
│ > % npm create hono                                        │
│                                                            │
│   > npx                                                    │
│   > create-hono                                            │
│                                                            │
│   create-hono version 0.19.4                               │
│   ✔ Target directory redirector                            │
│   ✔ Which template do you want to use? cloudflare-workers  │
│   ✔ Do you want to install project dependencies? No        │
│   ✔ Cloning the template                                   │
╰────────────────────────────────────────────────────────────╯

Select cloudflare-workers template.

Configuration

Edit src/index.ts to set your destination domain.

import { Hono } from 'hono'

const DOMAIN = 'https://glre.dev'

const app = new Hono()

app.all('*', (c) => {
        const { pathname, search } = new URL(c.req.url)
        return c.redirect(`${DOMAIN}${pathname}${search}`, 301)
})

export default app

Cloudflare Deployment

npx wrangler login

2. Deploy

npm run deploy

Then configure the custom domain through the Cloudflare Workers console.

Verification

Test the redirect:

curl -I https://glre.tsei.jp/
# HTTP/2 301

After deployment, simply navigate to Google Search Console → Settings → Change of Address and select your new domain to complete the migration 🎉