Module 5 · Audit & optimize
Audit & optimize your site
Stage 4. Before your site goes public, Claude carefully reviews it across desktop and mobile — accessibility, SEO basics, speed, links, and content — and fixes what it finds. In the Desktop app it can open your preview and click through the pages for real, not just read the code.
Watch — hand-picked
The clearest walkthroughs of this step, from creators we rate. Each one’s credited — go give them a follow.
Use Google Lighthouse to Speed up Site (2025)
Is your website accessible? (Beginners Guide)
The big picture
You’ve been close to your site for a while, so it’s easy to miss things. This stage checks accessibility, SEO basics, speed, broken links, leftover placeholder text, and the mobile layout — then fixes the issues. It’s what turns “looks good” into “genuinely solid.”
Paste this into Claude Code
Audit & optimize my site
Let's do Stage 4 — audit and optimize my whole website, then fix what you find. Please check and report on: 1. MOBILE & DESKTOP — everything looks and works well on phones and on computers; the menu collapses nicely on small screens; buttons are easy to tap. 2. ACCESSIBILITY — good color contrast, readable font sizes, image alt text, keyboard-friendly. 3. SEO BASICS — every page has a clear title and description and one main heading. 4. PERFORMANCE — images optimized; nothing making the site slow. 5. LINKS & CONTENT — no broken links, no leftover placeholder text, spelling and grammar clean. 6. POLISH — a favicon from my logo, a friendly 404 page, and my real contact details everywhere. Give me a short summary of what you found, fix the issues, save a snapshot, and flag anything that needs my decision.
That one prompt covers six lanes. Here’s what each one is really checking:
Mobile & desktop
Looks and works well on phones and computers; the menu collapses, buttons are easy to tap.
Accessibility
Good contrast, readable sizes, image alt text, keyboard-friendly.
SEO basics
Every page has a clear title, description, and one main heading.
Speed
Images optimized; nothing quietly making the site slow.
Links & content
No broken links, no leftover placeholder text, clean spelling.
Polish
A favicon from your logo, a friendly 404 page, real contact details everywhere.
Do a “fresh eyes” read yourself
Open your site and read the homepage out loud, slowly, like you’ve never seen it. Does it instantly say what you do and who it’s for? Is the next step obvious? Tell Claude to fix anything that fails that test.
Once it’s audited and reads clearly, you’re ready. “Live and good” beats “perfect and invisible.” You can keep polishing forever after launch — and you’ll know exactly how.
Your website is built, audited, and polished — fast, accessible, mobile-friendly, and clear. It’s ready to meet the world. Next: put it online.
Audit flags something you don’t understand? Ask Claude: “Explain that like I’m not technical, and tell me if it actually matters for my small business site.” Not every flag is worth fixing before launch.
And if one of the fixes makes something look worse, type /rewind to put your files back the way they were before that message.
Watch this step
Speed is one of the six audit lanes, and it's the one that's easiest to see. This shows Google Lighthouse — the free tool Claude leans on — finding and fixing what's slowing a site down. It’s from an independent creator — credited below, so go give them a follow.
Use Google Lighthouse to Speed up Site (2025)
More learning resources
Still want another angle? These are hand-picked and vetted to line up with this lesson — from creators and sites worth your time.