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Technical SEO

Website migrations

A migration changes URLs, platforms, domains, architecture, rendering, content, or infrastructure and requires a controlled inventory, mapping, test, launch, and monitoring process.

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Audiencebusiness owners, marketers, SEO practitioners, and developers PurposeLearn a concept and apply it correctly Reading time2 min · 272 words Last reviewed
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Learning objective

Understand, apply, and verify Website migrations

Use the concept to make a bounded website decision, then preserve the evidence and result in the operating record.

Primary topicWebsite migrations

A migration changes URLs, platforms, domains, architecture, rendering, content, or infrastructure and requires a controlled inventory, mapping, test, launch, and monitoring process.

Operating outcomeAccountable improvement

Detect meaningful service degradation early and connect response to a complete operational record.

Review statusMaintained resource

Reviewed for accuracy, clarity, and operational use.

01

Migration phases

  1. 01

    Inventory

    Collect URLs, traffic, queries, links, canonicals, sitemaps, templates, redirects, and conversions.

  2. 02

    Map

    Choose the closest relevant destination for every valuable legacy URL.

  3. 03

    Build and test

    Validate content, metadata, links, schema, rendering, performance, forms, analytics, and redirects in a controlled environment.

  4. 04

    Launch

    Deploy DNS, certificates, redirects, canonicals, sitemaps, analytics, and monitoring in a coordinated change window.

  5. 05

    Verify

    Crawl both URL sets and monitor errors, indexing, traffic, conversions, and operational incidents.

02

Apply Website migrations to a real website decision

Use website migrations as a decision framework rather than a detached definition. Start with the user or business task, collect service checks, synthetic journeys, certificates, domain and DNS state, scheduled maintenance, alert routing, incidents, and recovery evidence, document uncertainty, and decide what action is justified by the evidence.

01

Evidence

The difference between a transient signal, a confirmed incident, and a customer-visible impact.

02

Interpretation

Explain how the observed condition affects the intended outcome: detect meaningful service degradation early and connect response to a complete operational record.

03

Verification

Exercise the check and alert path, confirm escalation and customer communication, and retain recovery evidence.

03

Questions to answer about Website migrations

  • What user, search, commercial, compliance, or operational task does website migrations affect?
  • Which templates, URLs, entities, environments, or journeys are actually in scope?
  • What evidence would distinguish a confirmed problem from the risk of creating noisy checks that responders stop trusting?
  • Who owns the decision, implementation, approval, and follow-up?
  • What measurement or retest will prove the change improved the intended outcome?
Next useful action

Turn website migrations into an accountable record.

A documented decision or practice for website migrations that can be applied to a real website.

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Related resources

01

SEO Academy

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How to implement on-page SEO

Plan, write, structure, publish, test, and improve a page around a real audience task without turning the process into keyword stuffing.

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Run a free audit on a website you are authorized to assess

Create an Explorer account, verify the email and website, choose a bounded scope, and audit up to 250 pages each month without a payment card.

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Technical SEO

Technical SEO improves the systems that help search engines discover, request, render, interpret, select, and revisit the correct pages.

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Canonical tags

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Core Web Vitals and page experience

Core Web Vitals measure aspects of loading, responsiveness, and visual stability. They are useful indicators, not a complete quality evaluation.

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