Google began its September 2026 spam update on September 24, potentially lasting into October. Launching a redesigned site during the rollout can make Search Console data difficult to interpret because traffic changes may come from the migration, update, or both. Whether to delay depends on the scale of the redesign and available time.
Two Changes on One Date Make SEO Results Hard to Read
After a redesign, rankings may fluctuate for weeks as Google recrawls the site. An owner diagnosing a sudden drop in website traffic Usually, rule out tracking and seasonal factors first, then compare the drop with site changes and Google updates. Launching during a rollout makes the cause harder to identify.
What Google Has Confirmed About the September Update
The September 2026 spam update is the fourth this year and affects all languages and regions. A migration doesn’t violate spam policies, but overlapping changes complicate analysis. Google allowed up to two weeks for the rollout and hasn’t specified its target.
Small Changes and Repairs Do Not Need to Wait
Minor updates can proceed. Fix critical issues like broken analytics, incorrect canonicals, and robots.txt blocks immediately.
When the Launch Includes New URLs
Major URL changes need more caution. Google recommends making one major change at a time. Waiting until the rollout ends, plus an optional week, provides cleaner data.
The Holiday Calendar Problem
Long delays can affect holiday preparation. If the rollout ends around October 8, a one-week buffer pushes launch to mid-October. Retailers unable to launch by late October may keep the existing site through the holidays.
Finishing the Website Redesign SEO Checklist on Staging
Use extra time to:
- Save Search Console data.
- Test redirects.
- Avoid homepage redirects for discontinued pages.
- Compare key pages and templates.
- Record staging noindex tags.
- Test conversion tracking.
What a Website Redesign SEO Checklist Often Misses
Server capacity matters because crawling may increase after migration. Keep redirects for at least a year and annotate the update, launch, and major fixes in Search Console.
How to Tell the Launch From the Update
Don’t rely on launch-week data. Compare the second full week after launch with a pre-update period and analyze results by page type. Unchanged sections, such as a blog, can provide a rough baseline.
Three Common Launch Questions
Can a Redesigned Site Launch in Sections?
Yes. Large sites can launch in sections, while Google recommends all-at-once moves for smaller sites.
Does a New Sitemap Speed Up Migration?
It helps Google discover new URLs, but crawling and processing still take time. Search Console tracks indexing progress.
Do 301 Redirects Hurt SEO?
No. Permanent redirects don’t cause PageRank loss. Incorrect destinations and redirect chains are the main risks.
If the New Site Already Went Live
Keep it live rather than rolling back. Check redirects and conversion tracking, then allow enough time to evaluate post-launch data.
**The opinions expressed in the article are solely the author’s and don’t reflect the opinions or beliefs of the portal**
