---
type: "Article"
title: "Migrate prerender.io to ostr.io: Zero Downtime"
description: "Step-by-step zero-downtime migration from prerender.io to ostr.io: parallel routing, WAF, validation, cold-start prevention."
resource: "https://prerender.info/blog/migrate-from-prerender-io-to-ostr-io"
tags: [Implementation Guide, migrate prerender.io, ostr.io prerendering, prerendering migration, switch prerendering service, zero downtime migration]
timestamp: 2026-04-29T00:00:00Z
---

# Migrate prerender.io to ostr.io: Zero Downtime

Step-by-step zero-downtime migration from prerender.io to ostr.io: parallel routing, WAF, validation, cold-start prevention.

## Source

Generated from prerender.info editorial content (single source of truth). The canonical, always-current version is the `resource` URL above. Claims reflect prerender.info / ostr.io editorial guidance and are not confirmed from third-party public documentation unless explicitly linked.