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Home/Case Studies/Enterprise Site Migration
  Enterprise SEO · Replatform

Zero Organic Traffic Loss on a 40,000-Page Replatform

An enterprise retail brand needed to migrate 40,000+ URLs to a new platform on a fixed go-live date. Most replatforms lose 20–40% of organic traffic in the first quarter. This one didn’t lose any.

0%organic traffic lost
40K+URLs migrated
14 wkspre-migration planning window
  The challenge

A fixed go-live date and 40,000 URLs to protect

The business had committed to a hard launch date for the new platform, driven by a contract deadline with the new ecommerce vendor. Marketing leadership needed certainty that years of accumulated SEO equity wouldn't evaporate on launch day. Large migrations go wrong often enough to make that a real risk.

Fixed go-live date, no room to slip
40,000+ URLs with years of accumulated ranking signal
  The strategy

Treat the migration as the project, not a side task

1

Full URL-by-URL redirect mapping

Every one of 40,000+ URLs mapped 1:1 to its new destination, validated against crawl data before a single page went live.

2

Staged rollout with rollback checkpoints

Migrated in batches by site section with monitoring checkpoints at each stage, keeping a rollback path open until each batch was confirmed stable.

3

Daily indexation & ranking monitoring post-launch

Tracked crawl rate, indexation status, and rankings daily for the first six weeks to catch any regression before it compounded.

  The results

The launch nobody outside the SEO team even noticed

0%

organic traffic lost

40K+

URLs migrated with 1:1 redirects

99.7%

redirect accuracy at launch

6 wks

post-launch monitoring window

“We braced for a traffic dip that never came. The migration was a non-event, which is exactly what we wanted.”

VP Ecommerce, Enterprise Retail Brand

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