Why is a website relaunch risky for SEO and lead generation - and how much traffic loss is normal?

A website relaunch always intervenes in existing rankings, user behaviour and data structures. It affects several critical systems at once: structure, content, URLs and technology. Even small changes can lead to: content being re-evaluated and (temporarily) ranking worse; established user journeys and conversion paths being interrupted; tools no longer being able to track cleanly; updates to the old website stalling and search engine indexing potentially slowing down (e.

g. due to changed crawl behaviour). Particularly critical are: missing or faulty redirects; changed page structures; content re-evaluated by search engines.

Lead generation is also affected, since: proven landing pages may disappear; conversion elements are changed; users need to reorient themselves. How much traffic loss is normal? Short-term fluctuations within 1-3 months are common.

A temporary decline of 10-30% can occur depending on the scope of the relaunch and should be cushioned by targeted measures (e. g. campaigns or quick optimisations).

In short: a relaunch is not a neutral intervention but one that affects existing visibility and demand. Without careful planning, losses are almost always the result.