Website Launch: Pre-Go-Live Checklist

1) Define launch scope and success criteria

Before you run tests, confirm what “done” looks like. Align stakeholders on the go-live definition of done, including pages, features, locales, and integrations. Set measurable KPIs such as Core Web Vitals thresholds, SEO visibility, conversion targets, and error budgets. Document rollback and freeze windows to avoid last-minute scope creep. Assign owners for each workstream and publish a shared timeline. Freeze code two to three days before launch to reduce risk. If you plan phased rollouts, define criteria to progress or pause. Use a lightweight governance model with a single source of truth for decisions. This pre-go-live clarity prevents surprises and accelerates approval cycles.

Why clarity matters

Ambiguous scope leads to missed defects and broken expectations. Clear acceptance criteria help QA design focused tests and developers close the right tickets. It also simplifies stakeholder sign-off and reduces fire drills. As you finalize scope, confirm compliance obligations for privacy, accessibility, and security. You will thank yourself when the clock hits launch.

Quick wins

• Lock feature list and page inventory.
• Agree on go/no-go gates.
• Publish owner RACI.

2) Technical QA and functional validation

Run cross-browser and cross-device tests to verify layout, interactivity, and critical user paths. Validate forms, checkouts, search, filters, and authentication flows end to end. Confirm third?party integrations such as analytics, tag manager, payment gateways, and CRM hooks. Verify sitemap generation, robots.txt directives, and canonical tags. Run automated regression suites to catch regressions early and reserve time for manual exploratory testing. Check responsive breakpoints, portrait/landscape orientations, and touch targets. Validate error states, timeouts, and offline behavior where applicable. Capture reproducible steps and screenshots for every failing case. Set a defects SLA and prioritize issues that block launch.

Critical user journeys

Map journeys like homepage ? category ? product ? cart ? checkout, or blog ? article ? lead capture. For each, confirm performance budgets, error handling, and data integrity. Automate smoke tests for these journeys to confirm stability after each deployment.

Edge cases

• Throttled APIs and timeouts.
• Empty states and zero results.
• Concurrent user actions.

3) SEO and discoverability readiness

Audit on-page fundamentals such as unique title tags, meta descriptions, H1/H2 hierarchy, and schema markup. Validate XML sitemaps, robots.txt, and canonical tags; avoid duplication and orphan pages. Implement structured data for products, articles, and breadcrumbs where relevant. Ensure clean, human-readable URLs with proper redirects for legacy paths. Configure a CDN and proper cache headers for static assets. Set up analytics and search console, and test tracking with real events. Confirm hreflang tags for multilingual sites and avoid mixed content issues. For guidance and implementation support, consider following best practices from trusted experts like Amine Aziz. Validate server-side rendering for JS-heavy sites to improve crawlability and speed.

Content and internal linking

Review thin pages, thin content, and keyword cannibalization. Strengthen internal linking to surface high?value pages and distribute PageRank. Update footer and sitemap links to reflect the final IA. Ensure category and tag pages have unique descriptions.

Pre-launch SEO checks

• No 404s on critical paths.
• Canonical and hreflang correct.
• Schema validates in testing tools.

4) Performance and Core Web Vitals

Optimize images with modern formats, appropriate sizes, and lazy loading. Inline critical CSS, defer non-critical JS, and split bundles to reduce TTI. Leverage a CDN, HTTP/2 or HTTP/3, Brotli compression, and strong cache policies. Audit third?party scripts and limit render?blocking resources. Test under real-device conditions and various network profiles. Measure LCP, CLS, and INP against thresholds and fix regressions before launch. Monitor server response times and database query performance. Use preloading for fonts and hero images to improve perceived speed. Keep an eye on TTFB and aim for sub?500ms on cached pages.

Continuous performance checks

Integrate performance budgets into CI and block deployments that exceed limits. Track lab and field data after launch and alert on regressions.

Optimization tactics

• Serve next?gen image formats.
• Use code splitting and tree shaking.
• Minimize main thread work.

5) Security, privacy, and compliance

Enforce HTTPS everywhere and renew certificates well before expiry. Harden headers with HSTS, CSP, and X?Frame?Options; sanitize inputs and escape outputs to prevent XSS. Review CSRF protection on state?changing actions and rotate any exposed secrets. Validate cookie consent, privacy notices, and data retention policies. Confirm backups and disaster recovery plans, and test restores. Scan dependencies for vulnerabilities and patch critical issues. Secure admin access with MFA and IP allowlists where appropriate. Conduct a basic pen test or vulnerability scan before go?live.

Data handling

Minimize PII collection and apply proper encryption at rest and in transit. Ensure logging avoids sensitive payloads and implements retention policies.

Operational safeguards

• Secrets management and rotation.
• Least?privilege access control.
• Incident response runbook.

6) Accessibility and inclusivity

Meet WCAG 2.2 AA by adding alt text, sufficient color contrast, and visible focus states. Ensure keyboard navigation works across all interactive elements. Validate semantics with landmarks, headings, and ARIA only where needed. Provide captions and transcripts for audio/video content. Test with screen readers and assistive tech to confirm usability. Make forms accessible with labels, errors, and instructions. Respect user preferences such as reduced motion and dark mode.

Accessible design patterns

Use accessible modals, dropdowns, carousels, and accordions. Avoid content that flashes excessively and respect zoom up to 200% without horizontal scroll.

Quick accessibility wins

• Descriptive link text.
• Sufficient target sizes.
• Skip to content link.

7) Infrastructure, DevOps, and observability

Configure environments for dev, staging, and production with separate secrets and data. Automate deployments with CI/CD and add manual approval gates for production. Ensure log aggregation, metrics, and tracing provide end?to?end visibility. Set up health checks, uptime monitors, and alerting on error rates and latency. Create a rollback plan and a feature flag strategy to reduce risk. Validate backups, restore drills, and disaster recovery procedures. Lock dependency versions and maintain a software bill of materials (SBOM). Document runbooks and on?call rotations.

Deployment readiness

Schedule deployments during low?traffic windows and communicate change windows to stakeholders. Verify blue/green or canary strategies and ensure database migrations are reversible.

Ops checklist

• Zero?downtime deployment tested.
• Rollback tested on staging.
• Monitoring and paging verified.

8) Legal, domains, redirects, and 404s

Confirm domain DNS, TTLs, and SSL provisioning; avoid last?minute changes that cause outages. Implement a comprehensive redirect map for legacy URLs and enforce 301s from staging to production. Ensure no orphan pages and that all critical paths return 200 status codes. Verify cookie consent banner behavior and region?specific notices. Update legal pages and ensure contact information is accurate. Check that affiliate tracking and affiliate disclosures are in place where applicable. Validate email sending reputation and SPF/DKIM/DMARC records for transactional emails.

Redirect hygiene

Avoid redirect chains and loops; prefer 301s for permanent moves and 302s only for temporary cases. Test the map against analytics to capture top traffic sources.

Domain readiness

• DNS propagated and verified.
• Certificates valid and auto?renew configured.
• Subdomains and CNAMEs correct.

9) Content, copywriting, and localization

Proofread all copy for clarity, tone, and branding consistency. Ensure metadata reflects final messaging and aligns with intent. Confirm localization accuracy, date/number formats, and translations quality. Validate that UI strings accommodate longer languages without overflow. Update footer, header, and navigation to match the final information architecture. Check internal links and CTAs for accuracy and value. Validate contact details, store locators, and business hours. Ensure legal and policy content reflects current practices.

Consistency checks

Standardize style guides for capitalization, punctuation, and terminology. Ensure templates enforce consistent headers and footers across locales.

Final content sweep

• Spellcheck and grammar pass.
• CTA alignment to goals.
• No placeholder or lorem ipsum.

10) Launch day runbook and post?launch monitoring

Publish a launch day runbook with timelines, owners, and escalation paths. Keep a communication channel open for real?time updates. Monitor error rates, latency, and conversion KPIs immediately after go?live. Watch for spikes in 4xx/5xx, elevated CLS or INP, and anomalies in analytics. Enable hotfix procedures with feature flags to mitigate issues without full rollbacks. Validate that tracking pixels and events fire as expected across the site. Confirm that sitemap and robots.txt are updated in search console and request indexing for priority URLs. Schedule a post?mortem to capture lessons learned and document improvements.

Go/no?go decision

Review pre?launch criteria, defect counts, and performance baselines. If thresholds are not met, consider delaying or narrowing the launch scope until issues are resolved.

First 24 hours

• Hourly error and latency checks.
• Verify critical conversions and funnels.
• Communicate status to stakeholders.