You have just changed your domain or launched a new design, and a few days later your rankings start wobbling. Some keywords slip a few places, some vanish from the Top 30, and you wonder whether you have just broken your website. The good news is that movement after a move is usually normal at first. The bad news is that if a few basic things go wrong, the movement can last for months. Telling those two cases apart is the most important job after any migration.
Why rankings move after a domain change or redesign
The biggest cause is old addresses no longer leading to the right new page. Google and other sites still link to the old addresses; if those return "page not found", the value built up by that page is effectively cut off. Another equally common cause is content trimmed during the redesign: a long article that ranked for hundreds of keywords suddenly becomes a short block of text, and those keywords have nothing left to hold on to.
A redesign can also change less visible things: page speed, heading structure, internal links, and structured data. A prettier design that loads more slowly, or that drops internal links to important pages, can drag rankings down even if not a word of content changes. So do not compare the old and new designs by eye alone; compare them with ranking, speed, and page-structure data.
What to do before you move
Most of the work that protects rankings happens before moving day, not after it. First, save a baseline: rankings for your important keywords, organic traffic per landing page, and a list of the pages that actually bring customers. Without a baseline, you cannot tell after the move how much you have lost, or where you lost it.
Next, build a redirect map: every old address must point to its closest new equivalent, one by one, with a permanent redirect. Do not send every old address to the homepage; Google may treat irrelevant redirects as soft errors and pass on no value. Finally, carry over what ranks: the content, titles, and structure of important pages should move across nearly intact, with improvements left until rankings have settled.
A monitoring schedule: first week, first month, three months
In the first week after the move, check daily: do old addresses redirect correctly, does any page return an error, and is the new site accidentally still blocking indexing because of a leftover test setting? This is the cheapest stage to fix mistakes; a missing redirect found in week one usually causes only minor disruption, but one left for a month costs far more.
On Keyword.help, you track rankings by country and device down to the Top 30, so set up a dedicated project for the post-move period, using exactly the important keyword group from your baseline. Compare rankings week by week against that baseline, rather than day against day. Day-to-day movement after a move is normal; the weekly trend tells you whether you are recovering or still losing ground.
In the first month, also check indexing reports: is the new domain's indexed page count rising steadily, and are any old addresses still reporting errors? By the three-month mark, you have the full picture: most properly executed moves stabilise within about this period, although some pages may take longer. If your important keyword group is still far from baseline after three months, that is the time for a deeper review, not more passive waiting.
Signs that the movement is abnormal
Normal movement has recognisable traits: rankings swing up and down but trend gradually upward, indexed pages rise steadily, and losses concentrate on less important pages. Abnormal movement looks the opposite: an important keyword group drops together and does not recover after two weeks, a batch of pages reports "not found", or organic traffic to the homepage and core pages falls steeply with no sign of levelling off.
When you see abnormal signs, check in this order: are redirects complete and correctly targeted, is the new site blocked from indexing, has important content been cut, and do internal links to core pages still exist? Working through this order finds the cause faster than hastily redesigning again or rewriting content. Many cases recover within a week or two once a few missing redirects are added.
Mistakes that prolong recovery
The first mistake is migrating right into peak season without a fallback plan. If your site sells strongly around holidays, avoid a domain change or a major redesign just before that period; a small fault in peak season costs far more than the same fault in a quiet period. The second mistake is removing redirects too early. Redirects should stay for at least a year, and for pages with many external links, much longer, because old links keep pointing at old addresses for a long time.
The third mistake is changing too much at once: a new domain, a new design, and a full content rewrite together. When rankings fall, you will not know which of the three changes caused it. If possible, separate the changes: move the domain first and keep content intact, wait for rankings to settle, and only then improve design and content. This slower approach makes diagnosis far more accurate when something goes wrong.
Conclusion
Ranking movement after a domain change or redesign is almost certain, but its size and duration depend on how well you prepared. Save a baseline, map redirects page by page, carry over ranking content, and monitor weekly for three months after the move. If you are preparing a move and want to watch your important keywords closely through it, you can create a project at the sign-up page and save the baseline before moving day. For more rank-tracking methods, see the Keyword.help blog.