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Migration Red Flags: Promises That Should Worry You

Website migration red flags to spot before you sign: guaranteed zero traffic loss, converters sold as full migrations, no redirect map, and the questions to ask.

By Mehdi Hassan7 min read

The short answer

The biggest website migration red flags are promises nobody can keep, like 'zero traffic loss guaranteed', and shortcuts sold as full service, like an automated converter billed as a migration. A good provider shows you a URL inventory, a redirect map, a content plan and a launch QA list before work starts, and is honest about risk.

Key takeaways

  • No one can guarantee zero traffic loss; a provider who does is selling confidence, not a process.
  • There's no converter between Webflow, Framer, Wix or code. Every platform move is a rebuild.
  • No URL inventory and redirect map in the proposal means SEO is an afterthought.
  • Ask who owns the domain, hosting, CMS and code after launch, in writing.
  • A fixed price should come with a fixed, written scope, not a vague 'full migration'.

Part of Should You Migrate Your Website? A Decision Framework

What are the warning signs of a bad website migration provider?

The warning signs of a bad website migration provider are guarantees about rankings, vague scopes, no plan for URLs and redirects, and silence about what happens after launch. Each one tells you the provider is focused on the build and not on protecting the traffic and leads your current site already earns.

A migration is risky because it changes URLs, templates and content at once. Before you hire anyone, be sure a move is the right call; our decision framework for migrating your website helps, and so does knowing when not to migrate. If you've decided to go ahead, use the checklist below on every proposal you receive.

Why is 'zero traffic loss guaranteed' a red flag?

'Zero traffic loss guaranteed' is a red flag because nobody controls how Google recrawls and re-evaluates a moved site. A careful migration keeps the risk low and the recovery fast, but a guarantee promises an outcome that depends on a search engine, not on the provider.

Rankings can shift for weeks after launch while Google processes redirects and new templates. Seasonality and algorithm updates land at the same time and blur the picture. An honest provider tells you what they'll do to protect traffic, how they'll monitor it and what they'll fix if something drops. Read the guarantee's small print, too: a refund on part of the fee doesn't bring back the leads a traffic drop costs you.

Promise the process, not the ranking.

Is an automated converter the same as a migration?

No. An automated converter or cloner copies the visible output of pages, and a migration rebuilds the site on the new platform with its structure, CMS, URLs and SEO intact. Our research found no real converter exists between Webflow and Framer, from Wix to anything, or from Framer to code, so every move between platforms is a manual rebuild.

Converters and AI rebuilders are useful as a starting point. Coding agents genuinely speed up the build. The problem is when a tool's output is sold as the finished migration, with no redirect mapping, CMS modelling, metadata check or device QA. Our guides to AI-assisted website migration and website cloner tools and SEO explain where these tools help and where they quietly break things.

Website migration red flags: the checklist

Use these website migration red flags to screen proposals. One flag isn't always a deal-breaker, but three or more means you should keep looking.

  1. Guaranteed rankings or zero traffic loss. No one controls Google's re-evaluation of a moved site.
  2. No URL inventory in the proposal. They haven't counted your pages, posts and assets, so they can't price or protect them.
  3. No redirect map. Redirects are mentioned as 'handled' with no sheet, no owner and no testing step.
  4. A converter sold as the full job. 'We'll import your site automatically' with nothing about CMS structure or QA.
  5. Price quoted before any discovery. A fixed number without knowing templates, collections, locales or integrations.
  6. 'Full migration' with no written scope. You can't tell what's included, so you can't tell what's missing.
  7. Nothing about forms and integrations. Lead capture, CRM sync and analytics are where leads quietly disappear.
  8. No plan for metadata and structured data. Titles, descriptions, canonicals and schema aren't mentioned.
  9. Launch on a Friday or in your peak season. Nobody is watching when things break, or traffic is at its most valuable.
  10. No post-launch monitoring. The job ends at launch, with no checks on crawl errors, 404s or traffic.
  11. Unclear ownership. The provider registers the domain, hosts the site or owns the CMS account.
  12. They push a platform before hearing your needs. Every answer leads to the one tool they sell.

What should a good migration proposal include?

A good migration proposal includes a URL inventory, a redirect plan, a content and CMS plan, an integrations list, a launch QA checklist and post-launch monitoring. It also names who owns each piece and what's out of scope.

Item

What good looks like

Red flag version

URL inventory

Every page, post and asset listed with traffic and backlinks

'We'll move all your pages'

Redirect map

Old URL to new URL sheet, reviewed by you, tested after launch

'Redirects are included'

Content plan

What's kept, merged, rewritten or retired

Everything copied as is

CMS model

Fields, references and templates defined before import

Import first, fix later

Integrations

Forms, CRM, analytics and pixels listed and tested

Not mentioned

Launch QA

Device, form, metadata and redirect checks with owners

'We'll test it'

Monitoring

Search Console, 404 and traffic checks after launch

Ends at go-live

Our website migration SEO checklist lists every SEO step in order, so you can check a proposal against it. If you're weighing who should do the work, our comparison of DIY, freelancer and agency migrations sets out the trade-offs.

What questions should you ask a migration agency?

Ask questions that force specifics: how they inventory URLs, who writes and tests redirects, what happens to forms and what they do if traffic drops. Vague answers to these are the most reliable red flag of all.

  • How will you find every URL, including old blog posts, PDFs and images with backlinks?
  • Can I see an example redirect map and launch checklist from a past project, with client details removed?
  • How do you handle URL patterns that change, like category prefixes or date-based post URLs?
  • Which integrations will you test before launch, and how?
  • What do you monitor after launch, for how long, and what's your process if traffic drops?
  • Who owns the domain, hosting, CMS account and code when you're done?

For a fuller set, our guide to hiring a Webflow or Framer migration agency covers selection criteria, and our list of web design agency red flags covers warning signs that apply beyond migrations.

Edge cases that catch providers out

Some sites carry risks that generic migration plans miss. Multilingual sites often change locale structure, for example moving from subdomains to subfolders, which turns every translated URL into a redirect; our multilingual website guide covers the structure choices.

Sites built as single-page React apps may have content that search engines struggle to render, so the migration is also an indexing fix; see React SPA to SEO-friendly website.

Large blogs often have tag and archive pages that earn links, and these get lost when only posts are migrated. Ask any provider how they'll handle each of these if they apply to you.

Our verdict on spotting a risky migration provider

Trust the provider who talks about risk plainly and shows you the documents that manage it. Distrust the one who removes risk with a promise.

Frequently asked questions

Is some traffic loss normal after a website migration?
Some short-term fluctuation is common after a migration while search engines recrawl the site and process redirects. A well-planned move usually keeps that small and temporary. Sustained drops typically point to missing redirects, changed content, lost internal links or indexing problems, and those can be diagnosed and fixed. Track rankings, organic traffic and Search Console errors from the first day after launch.
How do I check if my migration provider set up redirects correctly?
Export your old URL list and run it through a crawler or redirect checker after launch. Every old URL should return a single permanent redirect to the most relevant new page, not a chain and not the homepage. Also check Search Console for new 404 errors over the following weeks, and spot-check your highest-traffic and most-linked pages by hand.
Should I pay a migration agency upfront?
A deposit is normal for agency work, and paying the full amount in stages tied to milestones protects both sides. Be cautious about paying everything upfront to a provider you haven't worked with. A paid trial or a small first phase, such as the URL inventory and redirect map, is a good way to test how they work before committing the full budget.
Can I migrate a website myself instead of hiring someone?
You can migrate a small, simple site yourself if you're comfortable building in the new platform and following an SEO checklist carefully. The risk rises with page count, CMS content, multiple languages and integrations. Many teams do the content cleanup and redirect review themselves and hire help for the rebuild and launch QA, which keeps costs down without skipping the risky steps.
What should a migration contract say about ownership?
The contract should state that you own the domain, the hosting or platform account, the CMS and its content, and any code or design files once you've paid. Ideally those accounts are registered in your company's name from the start, with the provider added as a collaborator. That way you can change providers later without negotiating access to your own site.

· CEO & Design Director

Copywriter, designer and developer, and founder of Designify Studio. Over five years, 60+ projects across 14+ industries, for startups that have raised $300M+.

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