How to rebuild your website without losing your rankings

Every few months a business calls us with the same story: they launched a beautiful new website, and within three weeks their traffic fell off a cliff. Their designer built them a better site and accidentally deleted their business from Google in the process.

It’s almost always preventable. Sites don’t lose rankings because they got redesigned — they lose them because of a handful of predictable mistakes during the move. Here’s the checklist we’ve used on every migration since, including our own rebuilds.

Before anything else: crawl the old site

Export every URL on the current site — every page, post, and landing page — along with its title tag, meta description, and inbound links. This snapshot is your inventory. If it isn’t written down before launch, you can’t protect what you forgot existed.

Map every URL to its new home

For each old URL, decide where it lives on the new site, and set up a 301 redirect. Content that survives gets its old address forwarded. Content you’re cutting gets forwarded to the closest relevant page — not blindly dumped on the homepage, which is the migration equivalent of “return to sender, no address.”

The mistakes that cause 90% of traffic drops

• Unmapped URLs. Old pages 404 and their rankings die with them. The fix is the map above — no exceptions, including “temporary” pages and old campaign landers.
• Content amputated for design. The new layout only fits three paragraphs, so ten get cut — including the ones answering the searches the page ranked for. Design serves the content, not the reverse.
• Staging left indexable. A noindex tag or staging domain slips into production, and Google quietly removes the whole site. Check this twice on launch day.

Launch-day checklist

• Spot-check the 30 highest-traffic old URLs: do they land on the right new page?
• Confirm the staging site is de-indexed and production isn’t.
• Submit the new sitemap in Google Search Console and watch the coverage report daily for the first two weeks.
• Verify metadata and structured data carried over — don’t let titles regenerate as “Home | MySite.”
• Monitor crawl errors and fix redirect chains (old → intermediate → final) by pointing them straight at the final URL.

The weeks after: don’t panic early

Small ranking wobbles in the first fortnight are normal while Google re-crawls and re-trusts the new structure. What isn’t normal: steady decline after week three. If that starts, compare the affected pages against your inventory — the answer is almost always a dropped page, a broken redirect, or missing content.

Done right, a migration is boring. Done wrong, it costs a year of SEO progress. If you’re planning a rebuild and want a second pair of eyes on the migration plan, that’s a two-hour conversation — much cheaper than the traffic.