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Most clients who come to Mazette.co with a migration project share the same fear: losing the organic traffic built up over years on Squarespace. It's a legitimate concern. Google treats a platform switch as a signal worth watching, not a non-event. But in the vast majority of cases we've handled, a post-migration traffic drop isn't caused by Webflow itself: it comes from sloppy preparation.
In 2026 we took over the site of a cosmetics brand that had migrated to Webflow on its own six months earlier, with no redirect plan. The result: 40% of their product pages returned a 404, and their organic traffic had dropped by 55% in two months. The problem wasn't Webflow. It was the absence of a method.
Squarespace and Webflow don't share the same URL architecture, the same metadata management system, or the same rendering engine. Migration therefore requires a mapping exercise well before any graphic copy-paste.
Before even opening Webflow, you need to know precisely what Google already knows about your Squarespace site. This audit happens in three stages.
Use Google Search Console to list all indexed pages and identify the ones actually generating traffic. Cross-reference this with a full crawl using Screaming Frog SEO Spider, which will give you the exact site tree of your Squarespace site: pages, blog posts, categories, tags, product pages if you're running e-commerce.
Not all pages are created equal. A page generating 2% of traffic deserves less attention than a landing page capturing 30% of organic sessions. Rank your URLs by traffic volume and by number of inbound backlinks: these are the ones you must never lose.
Titles, meta descriptions, alt tags, any existing structured data: everything needs to be logged in a spreadsheet before reconstruction begins. It's tedious, but that spreadsheet will become your redirect roadmap.
The temptation when migrating to Webflow is to rethink the entire site structure — cleaner new slugs, new categorization, new page hierarchy. That's often a good idea on paper, but every slug change is a redirect you'll need to create.
Our rule at Mazette.co: wherever possible, we keep the exact same URL slugs between Squarespace and Webflow. If the Squarespace URL was /blog/how-to-choose-your-sunscreen, we keep that exact path in Webflow. This eliminates a good chunk of the redirect work and avoids any loss of SEO equity tied to a URL change.
When a structural change is genuinely necessary (typically in e-commerce, where Squarespace generates fairly rigid product URLs), we precisely document every old URL and its new match in a mapping table before going live.
| Element to migrate | Common Squarespace pitfall | Webflow best practice |
|---|---|---|
| Page URLs | Auto-generated slugs, sometimes with numeric IDs | Keep the same text slug whenever possible |
| Titles and meta descriptions | Often truncated or duplicated on Squarespace | Rewrite cleanly using the Mazette.co title generator |
| Images | Auto-generated file names, alt text often empty | Rename and fill in alt tags before importing |
| Blog and articles | Poorly structured pagination and tags | Rebuild a clean CMS architecture with Webflow CMS |
| XML sitemap | Auto-generated by Squarespace, hard to control | Regenerated Webflow sitemap resubmitted to Search Console |
This is the step that makes or breaks an SEO migration. Every Squarespace URL that changes must redirect to its new Webflow equivalent, via a permanent 301 redirect — never a 302, never just a link from the homepage.
Webflow lets you manage these redirects directly in the project settings (Project Settings > SEO > 301 Redirects). For large migrations with several hundred URLs, we recommend preparing the CSV file in advance and importing it rather than entering everything manually.
On a recent project for a Parisian architecture firm, we identified 187 URLs to redirect. Three weeks after the switch, organic traffic was not only stable but slightly up — thanks also to cleaning up orphan pages that had been cluttering the old Squarespace site.
Squarespace automatically generates certain structured data (blog articles, reviews, products), often in a limited way. Webflow doesn't generate it natively the same way: it needs to be recreated, especially if your site had rich snippets showing up in search results (review stars, prices, FAQ displayed directly in Google).
Use Schema Validator to check that each page type (article, product, service page) carries the appropriate JSON-LD markup before final launch. This is a point many agencies overlook, and it can make a rich snippet disappear overnight without organic traffic dropping immediately — the loss shows up mostly in click-through rate, which is harder to diagnose.
Also check, using the Detailed SEO Extension, that canonical tags, hreflang (if multilingual) and Open Graph tags are correctly configured on the new site before switching off the old one.
The DNS switch should never happen on a Friday evening. Favor a Monday or Tuesday morning, so you have several business days ahead to fix anything quickly if needed.
Once the new site is live on Webflow:
A slight, temporary dip in visibility within 10 to 15 days of migration is normal: Google needs to recrawl and recalculate the new platform's signals. What's not normal is a drop that persists beyond three weeks — a sign that a redirect or a technical element was overlooked.
On every migration, we treat SEO as a deliverable in its own right, documented and tested, not as a box to tick at the end of the project. That means a full audit before the first wireframe, a URL mapping table shared with the client, and a technical QA phase post-launch that typically lasts two to three weeks.
If your site is also available in several languages, make sure to check the multilingual setup right from the migration — something Weglot makes considerably easier on Webflow, provided it's configured before, not after, the switch.
To go further on the technical fundamentals of SEO on Webflow once the migration is complete, our article on Webflow SEO best practices covers the settings you shouldn't miss. And if your project goes beyond a technical migration to include a brand overhaul as well, our SEO expertise and Webflow expertise cover the full scope with a single point of contact.
A well-executed migration should never show up in traffic curves. That, ultimately, is the best indicator of success: silence.
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For a mid-sized site (10 to 50 pages), plan for 3 to 6 weeks including the audit, the rebuild and the post-launch QA phase. An e-commerce site with a large product catalog can take 2 to 3 months to secure all redirects and structured data. Rushing the process is the number one cause of traffic loss after migration.
As much as possible, yes. Keeping identical slugs avoids having to create hundreds of 301 redirects and reduces the risk of human error. Changing URLs is only justified if the old Squarespace structure was genuinely poorly designed, in which case every change must be documented and redirected individually.
A slight fluctuation over 10 to 15 days is normal while Google recrawls and recalculates the new platform's signals. A drop that persists beyond three weeks usually points to a missing redirect, a misconfigured structured data element, or an indexing issue that needs fixing quickly.
