Website Design Checklist: Planning, UX, SEO and Launch

A website design checklist should help you decide what to build, test whether it works, and identify what must be fixed before launch. It needs to cover goals, content, navigation, visual design, mobile usability, accessibility, SEO, performance, and the complete paths people use to enquire, buy, book, or get support.

This checklist is for business owners, marketing teams, and designers planning a new site or reviewing a redesign. A well-designed website should help visitors understand your business, find the right information, and take the next step without unnecessary friction. Use the checks below throughout the project, not only on the day you plan to publish.

How to Use This Website Design Checklist

Work through planning and content before approving layouts, then repeat the relevant checks on the built website and production domain. Mark each requirement as passed, failed, not tested, or not applicable. Record the page or journey, responsible person, test evidence, and any unresolved issue.

A checked box should describe an observable result. For example, “contact form works” is incomplete. A useful acceptance test is “a visitor can correct an invalid email address, submit once, see a confirmation, and have the enquiry arrive in the correct system.” Test with approved sample data rather than real customer information.

Adapt the scope to the site. A brochure website may not need accounts or checkout, but it still needs working contact routes and accurate content. A large catalogue needs additional product, search, filtering, and transaction tests. This is a project framework, not a substitute for specialist security or accessibility assessment.

1. Define the Website's Goals and Scope

Before choosing a layout or platform, agree what the site should help people do. Separate the business objective from the visitor's task: generating qualified enquiries is an objective; finding whether a service fits and requesting a quote is a task.

• Identify the main audience, their priority tasks, and the action each important page should support. Avoid giving every page several competing primary actions.
• Record what is in scope: page types, content creation, languages, integrations, migration, accessibility testing, and post-launch support. Name who supplies and approves each part.
• Set a budget range, dependencies, review milestones, and a decision-maker for conflicting feedback. Resolve must-have functionality before visual approval.
• For an existing site, save a baseline of relevant enquiries, completed purchases, task failures, and search landing pages. Note the period measured and any tracking gaps.

Put these decisions in a web design brief. Define success in terms the team can verify, not promises that a new design will automatically increase revenue. For a new site without historical data, document how measurement will begin rather than inventing a baseline.

2. Ground Research and Personas in Real Tasks

User experience (UX) and user interface (UI) are related but not interchangeable. UX considers whether the overall journey helps people achieve their goals. UI concerns the interface they read and operate. Research should inform both, rather than become a search for visual inspiration.

• Review existing customer questions, support requests, search terms, and available analytics. Identify what they suggest and what they cannot explain.
• Use UX research to investigate important uncertainties. Observe representative users attempting realistic tasks instead of only asking which design they prefer.
• Record where people hesitate, misunderstand language, miss information, or need help. Separate observed behaviour from your interpretation of its cause.
• Turn findings into decisions about content, navigation, and functionality, with a plan to test the revised experience.

Make Personas Useful to Design Decisions

A persona should summarize relevant patterns in evidence, not provide a fictional biography. Describe the task, decision criteria, objections, accessibility needs, and practical constraints that affect the journey. Mark assumptions that still need validation.

Use the same audience understanding in your brand strategy and website planning. A promise that matters in marketing still needs clear explanations and credible evidence on the page.

As a hypothetical B2B marketing example, a technical evaluator might need integration details while a budget owner needs scope and commercial information. That suggests different supporting pages, not two unrelated websites. Validate the scenario with the actual audience before designing around it.

3. Plan Navigation, Page Types, and URL Changes

A planning sitemap shows the site's pages and how they relate. It is different from an XML sitemap used by search engines or an HTML sitemap visitors can browse. Start with the questions users need answered, then group the pages into a structure they can understand.

• List the required page types, such as service, product, category, article, contact, and search results. Include confirmation and not-found pages where relevant.
• Use navigation labels people can interpret without internal company knowledge. Test whether someone can find a specific service or answer without coaching.
• Give important pages a route from relevant navigation or body content. Check that useful information is not available only through site search.
• Map journeys from likely entry pages, not just the homepage. Someone arriving on an article or product page still needs context and a useful next step.
• For a redesign, inventory existing URLs and decide which stay, change, merge, or retire. Review valuable landing pages before removing them.

Google's sitemap guidance explains how XML sitemaps support URL discovery; submitting one does not guarantee crawling or indexing. It also does not replace clear internal links.

Keep the URL mapping and redirect tests in an SEO migration plan. Match changed pages to appropriate destinations instead of redirecting everything to the homepage. A new site still needs a deliberate URL structure, even when there are no old addresses to migrate.

4. Align Content and Visual Identity

Before approving polished screens, check that the website communicates one coherent business. Branding should inform the message, tone, and visual choices rather than appear only as a logo at the top of the page.

Give Each Page a Clear Job

For every important page, specify the audience's question, the answer, supporting proof, and next step. This makes content strategy part of the design process rather than a task left until the layouts are finished.

• Write headings that explain the offer or topic. State who a service is for, what it includes, and what happens after an enquiry.
• Use accurate, attributable proof. Verify claims and confirm permission for testimonials, client logos, photographs, and other third-party material.
• Review final copy, contact details, links, downloads, and time-sensitive information with a named content owner. Remove placeholders and internal production notes.
• Check that calls to action describe the next step honestly. “Request a quote” should not unexpectedly begin a purchase or account signup.

Make the Design System Work With Real Content

Apply consistent typography, colour, imagery, spacing, and controls across templates. Your visual identity needs to remain recognizable and readable on small screens, not only in presentation mockups.

Approve headings, body text, buttons, links, and form states together. Try a long service name, a multi-line heading, and a realistic error message. Keep important explanations in live text rather than only inside images, and review images for accurate context, useful alternatives, and crops that do not hide information.

5. Test Wireframes Before Polishing Screens

Wireframes are simple page layouts focused on structure and content priority rather than final styling. Low-fidelity prototypes connect those layouts so you can test a journey. Use enough detail to answer the current question, without polishing elements that may need to change.

• Sketch representative page types and the routes between them. Include the main enquiry, booking, purchase, or support flow.
• Use realistic headings, navigation labels, content lengths, and calls to action. A layout that works only with short placeholder text is not ready for approval.
• Show which information deserves priority and where evidence belongs. Make the primary action clear without turning every element into a button.
• Include narrow-screen layouts and relevant loading, empty, error, and success states. Define what happens when users go back or abandon a step.
• Ask participants to complete a task without coaching. Revise confusing parts and retest the important changes before approving detailed screens.

Document the interaction design as well as the static layout so developers know how menus, forms, and other controls should respond. A useful UI/UX design handoff explains both the appearance and behaviour of the important journeys.

6. Match Features and the Platform to the Requirements

Choose Features Your Team Can Support

A feature belongs in the initial release when it supports a real task and someone can operate it after launch. Keep a separate list of later improvements so optional functionality does not obscure essential work.

• Provide accurate contact information and product or service details. Add directions when people visit a physical location.
• Add search and filters when the size or complexity of a catalogue makes them useful. Define relevant results, clear filter labels, and helpful no-result states.
• Maintain a blog or news section only with an editorial purpose and owner. Use an FAQ or support section for recurring questions that need accessible answers.
• Offer newsletter signup when there is a clear reason to subscribe and a publishing plan. Test confirmation and unsubscribe behaviour.
• Include accounts, booking, chat, or checkout only where needed. Assign responsibility for requests, availability, payments, and failure recovery.

For every integration, document the account owner, information exchanged, ongoing cost, and what visitors see when the connection fails. Social links should help people continue a relationship elsewhere without distracting from the main task.

Evaluate Platforms With a Working Example

The right platform depends on content, functionality, budget, and maintenance capacity. Test difficult requirements before committing, rather than assuming a polished demonstration covers your project.

Wix offers visual site-building tools and templates. Squarespace combines website templates with editing and business tools. Test your actual content and integrations instead of assuming either option fits every small business.

WordPress is an open-source content management system with themes and plugins; plan for hosting, updates, compatibility, and maintenance. Webflow combines visual development with CMS capabilities. Evaluate its content model, editing workflow, integrations, and plan limits against your requirements.

• Build a representative page and reusable content item. Check permissions, preview, publishing, and recovery with the people who will maintain the site.
• Verify requirements for products, languages, editors, search, forms, and data exports. Confirm current limits and extension dependencies directly with providers.
• Compare total ownership costs, including subscriptions, hosting, extensions, relevant transaction charges, and ongoing support.
• Define which changes editors can make and which require web development support. Confirm business ownership of accounts and source assets.

7. Test Responsive Layouts on Real Devices

A layout that fits a phone is a starting point, not proof that the experience is usable. Test narrow, intermediate, and wide widths, including the points where navigation or columns change. Do not review only a set of ideal screenshots.

Google uses the mobile version of a site's content for indexing and ranking. Its mobile-first indexing guidance recommends equivalent primary content on mobile and desktop. Do not remove important explanations simply to make a small screen look cleaner.

• Complete the main journey on a real phone. Test navigation, filters, forms, downloads, and any booking or checkout steps.
• Look for clipped headings, overlapping content, unexpected horizontal scrolling, and unreadable text. Check long words and real content, not only sample copy.
• Keep actions available without hover. Check touch-target spacing and verify that the on-screen keyboard does not hide the field or action needed next.
• Confirm images scale without stretching and embedded media stays within the content column. Review both portrait and landscape layouts where relevant.
• Test increased text size and persistent overlays. Sticky headers, consent notices, and chat widgets should not cover essential content or controls.

Choose the browser and device test set from audience evidence where available. Record what was tested, including operating system and browser, so “mobile approved” has a clear meaning.

8. Check Accessibility Beyond an Automated Score

Agree the accessibility target and testing scope before launch. Use the W3C WCAG quick reference to identify the relevant criteria and exceptions. Do not treat this general checklist or a clean automated scan as evidence of complete conformance.

• Operate navigation, forms, and dialogs with a keyboard. Check logical focus order, visible focus, and a way to exit overlays without getting trapped.
• Check headings, control names, labels, and important status messages with a screen reader. Form errors should explain the problem and identify the affected field.
• Review meaningful image alternatives and captions for relevant video. Decorative images need empty alternative text, not a repeated description.
• Test text contrast against the applicable criterion. For WCAG AA, normal text generally requires 4.5:1 and large text 3:1, subject to the stated exceptions.
• Check text resizing to 200% and reflow at the equivalent of a 320 CSS-pixel-wide viewport, applying the criteria's exceptions. Content and functionality must remain available.
• Test touch targets and alternatives to dragging against the chosen standard. Colour or a precise gesture should not be the only way to understand or complete a task.

Run checks on representative templates and complete journeys, including third-party widgets. The website accessibility testing checklist provides a fuller workflow for documenting findings, prioritizing fixes, and retesting. Record unresolved barriers rather than calling the site accessible because one page passed.

9. Verify SEO, Indexing, and Redirects

Connect the website's SEO strategy to the pages people actually need. Clear content and useful internal links belong in planning; the built site also needs a technical check before release.

• Give important pages distinctive, accurate titles and relevant meta descriptions. Keep one clear page H1 and a logical heading hierarchy, without forcing a keyword into every heading.
• Check which pages should appear in search and which should not. Verify production indexing settings individually instead of indiscriminately removing every restriction.
• Confirm canonical URLs identify the intended preferred version of equivalent content. Check that canonicals, internal links, and XML sitemap entries do not point to a staging domain.
• Test every mapped old URL against the intended new destination. Look for wrong destinations, redirect loops, and chains. Update internal links to final URLs.
• Check that removed pages without replacements return an appropriate not-found response and a useful page, rather than a misleading success screen.

A robots.txt block is not a reliable way to keep a page out of search. Google's noindex documentation explains that a crawler must be able to access the page to read its noindex instruction. Private information needs access controls; indexing directives are not a security boundary.

Use Google's SEO Starter Guide for search fundamentals. Passing these checks does not guarantee indexing or rankings.

Document detailed findings with a technical SEO audit checklist. Where crawling, rendering, or migration issues need implementation work, scope the technical SEO fixes before approving launch.

10. Measure Loading, Responsiveness, and Stability

Test representative pages, not just the lightest page on the site. Google's Core Web Vitals guidance defines good thresholds for three different aspects of the experience:

• Largest Contentful Paint (LCP) should be 2.5 seconds or less. It measures loading performance.
• Interaction to Next Paint (INP) should be 200 milliseconds or less. It measures responsiveness to interaction.
• Cumulative Layout Shift (CLS) should be 0.1 or less. It measures unexpected layout movement.

Assess all three at the 75th percentile of real-user visits, separately for mobile and desktop. Lab tests help diagnose problems before launch, but a Lighthouse score is not proof that field thresholds are met. A new or low-traffic site may not have enough field data; record that as unmeasured and plan a follow-up.

During diagnosis, review large images, unnecessary scripts, font loading, and space reserved for media. Test the pages people will use, including embedded booking tools and other third-party features. Record the device and network test conditions so before-and-after comparisons are meaningful. Prioritize the problems affecting essential content and actions rather than chasing a score without understanding the experience.

11. Test Forms, Integrations, and Measurement End to End

A success message does not prove an enquiry reached the business. Check the visible experience and the receiving system together, using the provider's test mode or an agreed controlled process for transactions.

• Submit each form with valid, missing, and invalid information. Verify clear labels, understandable errors, successful correction, and confirmation of the completed action.
• Confirm the submission reaches the correct inbox, CRM, or booking system with the intended fields. Check for duplicate records after repeated clicks or retries.
• For commerce, test payment success and failure, order confirmation, relevant charges, and the recovery or cancellation path. For accounts, test sign-in and password recovery.
• Test unavailable integrations and connection failures. Visitors should receive an honest message and a usable way to recover, not an endless loading state.
• Validate the analytics event associated with the completed outcome. A button click is not the same evidence as a received enquiry or completed purchase.

Check consent behaviour against the site's approved requirements, including accepting, declining, and changing preferences where those options apply. Have the responsible reviewer confirm that privacy notices describe the actual data collection. Avoid sending personal information in page URLs or analytics events.

Verify HTTPS on the production domain, review mixed-content warnings, and confirm appropriate permissions for editors and integration accounts. These checks belong in launch QA but do not replace a security review of sensitive or complex functionality.

12. Decide What Blocks Launch and Who Owns the Site

Run the final review against the agreed scope, using real content on representative page types and complete user journeys. Each issue needs reproduction steps, expected behaviour, severity, an owner, and a retest result.

Make the Go-Live Decision Explicit

Hold launch for failures that prevent essential tasks, expose sensitive information, or leave agreed critical requirements unmet. Examples include a form that loses enquiries, an inaccessible checkout step, or public pages unintentionally excluded from search. Lower-priority issues need an agreed fix date and risk owner, not an undocumented promise.

• Obtain content and launch approval from the designated decision-makers. Record any accepted exceptions and their reasons.
• Confirm access to the domain, hosting, CMS, analytics, integrations, and source assets. Keep recovery information in an appropriate shared system.
• Document backups, restoration steps, and the rollback decision. Test the recovery process available for the chosen platform before relying on it.
• After release, repeat key checks on the production domain: forms, critical journeys, changed URLs, indexing settings, analytics, and relevant consent behaviour.

Finish the Handoff With a Review Plan

Assign ongoing content reviews, software maintenance, and accessibility and performance checks. Demonstrate ordinary editing tasks, document support contacts, and agree who responds if a critical journey fails.

For a website redesign, preserve the record of what changed so migration issues can be separated from new design decisions. Compare outcomes with the documented baseline, accounting for tracking changes, traffic mix, and seasonality before attributing a difference to design alone.

The handoff is complete when ownership and the first follow-up review are agreed, not simply when the site is online. Keep this website design checklist with the project record so future pages and releases can be reviewed against the same standards.

Brand Vision brings together website strategy, design, and development. To turn these checks into a scoped website project, contact our team to discuss the priorities.