Website Performance & SEO Checklist

A healthy website is fast, secure, mobile-friendly, and optimised for search. Use this checklist to audit your site and identify what needs to change.

☐ Site Speed & Performance

53% of visitors leave a page that takes over 3 seconds to load. Each second of delay can cost 7% in conversions.

• [ ] Google PageSpeed score 90+ on both mobile and desktop
• [ ] Images compressed — Use WebP format, keep under 100KB where possible
• [ ] Browser caching enabled — Repeat visitors load your site in under 1 second
• [ ] CSS, JS, and HTML minified — Remove unnecessary code that bloat file sizes
• [ ] CDN configured — Serve content from servers closest to your visitors
• [ ] Render-blocking resources eliminated — Above-the-fold content loads first
• [ ] Hosting plan adequate — Shared hosting may throttle performance

☐ Mobile Responsiveness

60%+ of web traffic is mobile — and Google uses mobile-first indexing.

• [ ] Site tested on real phone and tablet devices
• [ ] Tap targets are 48x48px minimum
• [ ] Text readable without zooming (16px minimum font size)
• [ ] No horizontal scrolling
• [ ] Forms are thumb-friendly — easy to tap on mobile

☐ SEO Fundamentals

75% of users never scroll past page one of search results. If your SEO isn't dialed in, you're invisible.

• [ ] Unique meta title & description per page
• [ ] Proper heading hierarchy — helps search engines understand content
• [ ] Image alt text filled in — essential for accessibility and SEO
• [ ] Internal links connect your pages — helps crawling and keeps visitors engaged
• [ ] Clean, descriptive URLs — e.g., /services/web-design not /page.php?id=123
• [ ] Sitemap submitted to Google Search Console
• [ ] No broken links (404 errors) — use a tool to find and fix them
• [ ] At least 300 words of content per page

☐ User Experience & Conversion

A well-designed site converts at 5-10x the rate of a poorly designed one.

• [ ] Primary CTA visible within 3 seconds of landing
• [ ] Navigation has 5-7 items max
• [ ] Contact info easy to find from every page
• [ ] Forms have 5 fields or fewer — each extra field drops conversions ~10%
• [ ] Trust signals visible — testimonials, client logos, certifications
• [ ] Consistent branding — colors, fonts, tone of voice uniform across pages

☐ Security & Hosting

43% of cyber attacks target small businesses. Security issues also hurt SEO.

• [ ] SSL certificate active (https:// — not http://)
• [ ] CMS, plugins, and themes up to date
• [ ] Regular automated backups configured and tested
• [ ] Strong admin passwords and 2FA enabled
• [ ] 99.9%+ hosting uptime guarantee

Your Score: ___ / 25

• 0–8: Urgent attention — every unchecked box is costing you leads
• 9–16: Good foundation, significant room for improvement
• 17–25: Strong shape — keep maintaining and optimising

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