The Ultimate Pre-Launch Checklist - 25 Technical Tasks Before Going Live

Website Launch Checklist: 25 Technical Tasks Before You Go Live

A website rarely fails because of one catastrophic error. More often, it underperforms because of dozens of small misses: oversized images, broken redirects, weak passwords, missing favicons, sloppy metadata, staging pages indexed by Google, or the wrong user permissions left active after launch.

That is why a strong website launch checklist matters. It protects more than your launch day. It protects search visibility, user trust, performance, and operational security.

Launching without a structured review is expensive. Google’s long-running page speed guidance has shown that slow-loading pages hurt user engagement. HTTP Archive data continues to show how much page weight is attributed to images and media. And Verizon’s breach research repeatedly underscores the risks of weak credentials, access errors, and preventable security gaps.

This guide gives you a practical pre-launch technical checklist with 25 specific tasks, grouped by category, so your team can go live with confidence.

Why a Website Pre-Launch Checklist Is Crucial

A launch compresses many decisions into a short period:

• SEO configuration
• content publishing
• image handling
• analytics
• access management
• branding details
• redirects
• QA across devices

Without a checklist, teams assume someone else handled the “small stuff.” That is how problems slip through.

A good website pre-launch checklist does three things:

1. catches preventable issues before users do
2. reduces post-launch firefighting
3. creates accountability across marketing, product, design, and ops

The 25-Task Website Launch Checklist

Below is the core checklist, organised into five categories.

Category 1: Performance and Media Optimisation

1. Compress all major page images

Large images are one of the most common launch mistakes. Use CampaignMorph Image Compressor to reduce file size before publishing hero images, blog graphics, team photos, and product screenshots.

2. Resize images to actual display dimensions

Do not upload a 3000px-wide image for a 1200px container. Use correctly sized assets to reduce wasted bytes.

3. Verify next-gen formats where appropriate

Use modern formats like WebP or AVIF where supported, while maintaining compatibility needs.

4. Test lazy loading behaviour

Make sure below-the-fold images and videos load efficiently without breaking the layout or user experience.

5. Check video embeds and fallback behaviour

Confirm videos do not autoplay unnecessarily, break mobile layouts, or delay Largest Contentful Paint.

Category 2: SEO and Indexing

6. Review page titles and meta descriptions

Every key page should have a unique title and meta description aligned to search intent.

7. Confirm canonical tags

Prevent duplicate indexing issues, especially if similar URLs exist on staging, www/non-www, or campaign pages.

8. Generate and submit the XML sitemap

Make sure the sitemap reflects final URLs only and is referenced in robots.txt where appropriate.

9. Check robots directives

Confirm staging pages are blocked when needed and live pages are indexable when intended.

10. Test redirects from old URLs

If redesigning or migrating, ensure high-value legacy pages redirect correctly to their closest equivalent.

Category 3: Branding and UI Details

11. Add a favicon in all required sizes

A missing favicon is small but noticeable. Use CampaignMorph Favicon Creator to generate appropriate favicon files and platform variants.

12. Verify logo usage across breakpoints

Make sure your logo looks sharp and correctly sized on desktop, tablet, and mobile.

13. Check typography consistency

Review headings, button text, and paragraph styles for spacing, line height, and hierarchy consistency.

14. Test form styling and validation states

Error messages, placeholder text, focused fields, and success messages should all match the brand and remain legible.

15. Review empty states, 404 pages, and system pages

These often get overlooked, yet they shape perceived quality and trust.

Category 4: Security and Access Management

16. Enforce strong passwords for all admin accounts

Before launch, audit all CMS, hosting, and plugin credentials. A tool like CampaignMorph Password Strength Checker can help determine whether shared or legacy passwords remain too weak.

17. Remove unused accounts and old collaborators

Delete or downgrade access for freelancers, past employees, and temporary staging users.

18. Enable multi-factor authentication where possible

Critical accounts should not rely on passwords alone.

19. Confirm HTTPS and certificate validity

Make sure all pages load securely and that no mixed-content warnings appear.

20. Review form handling and data capture flows

Check where form submissions go, who can access them, and whether privacy disclosures are accurate.

Category 5: Analytics, Functionality, and Final QA

21. Verify analytics and tag implementation

Check GA4, Google Tag Manager, ad pixels, conversion tracking, and consent behaviour if applicable.

22. Test all critical forms end to end

Submit contact, signup, demo, and checkout forms. Confirm notifications, CRM handoff, and thank-you pages work.

23. Validate mobile UX on real devices

Responsive previews are not enough. Test on actual phones for tap targets, viewport issues, and loading behaviour.

24. Review internal links and navigation paths

Click through menus, footer links, CTAs, and key conversion pathways.

25. Create a rollback and incident plan

Know how to revert changes, restore backups, contact hosting support, and assign launch-day ownership.

Launch Checklist Summary Table

How to Use This Checklist in a Real Team?

A checklist only works if ownership is clear.

Recommended ownership model

• Marketing: metadata, content, forms, CTAs, branding review
• Design: visual QA, logo treatment, favicon, image sizes
• Developer: redirects, technical SEO, HTTPS, performance, schema if used
• Ops/IT: credentials, MFA, user access, rollback readiness

Launch-day workflow

1. Freeze non-essential content changes
2. Run final checks by category
3. Capture screenshots of critical pages
4. Verify analytics in real time after launch
5. Monitor forms, uptime, and page speed for 24–48 hours

Image and Media Optimisation Checks Most Teams Miss

Because media is often handled late in the process, these details are easy to overlook.

Important last-mile checks

• Hero images are compressed
• Thumbnails are not cropped awkwardly
• Alt text is added where relevant
• Retina/logo assets are sharp
• Embedded media does not push content below the fold unexpectedly

This is where CampaignMorph Image Compressor is especially helpful. It gives teams a quick way to reduce page weight without having to reopen complex design software at the last minute.

Branding and UI Details That Affect Trust

Users notice inconsistency even if they do not articulate it.

Common credibility killers

• Default browser icon instead of a favicon
• Mismatched button styles
• Inconsistent capitalization
• Blurry logos on mobile
• Broken hover states
• Generic 404 pages
• Visible staging copy or placeholder content

A quick pass with a focused checklist catches many of these issues.

Security and Access Management: The Most Overlooked Launch Category

Security gets discussed early in projects and forgotten late in them.

That is dangerous because launch periods often include:

• Temporary admin accounts
• Shared passwords
• Rushed plugin installs
• Exposed staging environments
• Unclear ownership of domains or DNS

The Verizon DBIR continues to show how often credential-related and human-factor issues contribute to breaches. Strong launch discipline matters. Even basic actions—reviewing account access, checking password strength, enabling MFA—can prevent painful incidents.

A Simple Go/No-Go Launch Decision Framework

Use this table before flipping the switch.

Final Pre-Launch Best Practices

Before launch, do these five extra things:

• Back up the live and staging environments
• Save a list of key URLs to test immediately after deployment
• Record baseline speed and SEO snapshots
• Keep one owner responsible for final sign-off
• Schedule a 24-hour and 7-day post-launch audit

Conclusion

A strong website launch checklist turns launch day from a gamble into a controlled release. It helps teams catch the details that directly affect performance, search visibility, credibility, and security.

Use this pre-launch technical checklist to review your site before going live, especially the assets users experience first: compressed images, clean branding, secure logins, and functional conversion paths. Start with the basics that move fastest—generate your favicon with CampaignMorph Favicon Creator, audit credentials with Password Strength Checker, and optimise visuals with Image Compressor.

If you want a launch that feels polished on day one, do not rely on memory. Use a real website pre-launch checklist and make every technical task visible before the site goes live.

Sources

• Google/Think with Google, page speed and user behaviour research
• HTTP Archive, Web Almanack reports on image weight and performance trends
• Verizon, 2024 Data Breach Investigations Report
• Google Search Central, crawling, indexing, and site launch guidance
• OWASP, general web security best practices for authentication and deployment