Website migration
A website migration is any move that changes a site's platform, URLs, domain or structure, such as WordPress to Webflow. Done well, it keeps search rankings by redirecting every changed URL and carrying over on-page SEO.
- Also called
- Site migration, Site move, Platform migration, CMS migration, Replatforming
- Category
- Website and CMS
- Updated
A migration can be a platform change, a domain change, a new URL structure, or all three at once alongside a redesign. The risk is the same in each case: search engines and other sites point at your current URLs, and anything that changes without a plan loses the traffic and authority attached to it.
Rankings are lost in three ways. URLs change without a redirect, on-page signals such as titles, headings, alt text and structured data are not rebuilt, or the new site has crawl problems like a stray noindex, a blocking robots.txt or broken canonicals. Control those three and a migration does not have to cost rankings.
Why it matters for a SaaS website
For many SaaS companies organic search is a real share of pipeline, built over years of content. A careless move can wipe out traffic to the pages that convert best: comparison pages, integration pages and high-ranking blog posts. The cheap version of a migration, a content transfer without a redirect map, usually looks fine on launch day and shows the damage three weeks later.
How DesignMe handles it
We treat SEO preservation as a named deliverable, not a launch-day task. Before the build we crawl every URL, export top landing pages and rankings from Search Console and Ahrefs, list the URLs with backlinks, and document on-page SEO. Every old URL gets a decision in a spreadsheet: same URL, new URL with a 301 redirect, or retired with a redirect to the closest relevant page. We rebuild metadata, headings, schema and internal links, launch early in the week and monitor for three to four weeks. A proper migration of a typical SaaS marketing site takes six to eight weeks. We learned this the hard way: our own relaunch had a short traffic dip from redirect gaps, which we caught in Ahrefs and fixed with a clean 301 map.
Example
Say a fintech company moves 180 WordPress URLs to Webflow and drops the date folders from its blog URLs. The audit shows 22 posts with backlinks and 9 pages driving most sign-ups. The redirect map sends each old post to its new slug in one hop, merges three thin category pages into one resource hub, and points a retired webinar page to the events page instead of the homepage. Search Console gets a fresh sitemap on launch day.
Common mistakes
- Redirecting everything to the homepage. Google may treat it as a soft 404. Redirect to the closest relevant page.
- Redirect chains. Old URL to intermediate to final wastes crawl time. Make every redirect a single hop.
- Removing redirects too soon. Google advises keeping them for at least a year.
- Launching on a Friday. Problems surface in the first days, so launch when someone is watching.
Questions
- How long does it take for rankings to settle after a website migration?
- Google says that for a medium-sized site it can take a few weeks or more before the new URLs replace the old ones in search. A small dip in the first week is normal. A decline that keeps going past a few weeks usually points to something broken, most often missing or wrong redirects.
- Can you migrate a website without changing URLs?
- Often, yes, and it is the lowest-risk path. If the new platform can reproduce the same paths, including trailing slash behaviour, most pages need no redirect at all. You still need to carry over titles, descriptions, headings, structured data and internal links, and check that nothing is accidentally set to noindex.
Sources
- Google Search Central: Site moves with URL changes (opens in a new tab)developers.google.com
- Google Search Central: Redirects and Google Search (opens in a new tab)developers.google.com
- Google Search Central: How HTTP status codes affect Google's crawlers (opens in a new tab)developers.google.com
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