Codex can write the patch. PageLens checks the live site.
Agentic coding tools are excellent at changing code. They still need an independent public-surface review before customers, search engines or social previews judge the result.
The agent can fix code, but it cannot grade the launch by itself
Codex is strongest when you give it evidence. PageLens AI scans the deployed site, turns visible launch risk into prioritized findings, and gives you prompts Codex can use without guessing what went wrong.
The 8 issues we keep finding on Codex-built sites
Each one is real, severity-ranked, and ships with a one-line fix suggestion in the report.
Metadata changed in code but not on the deployed page
Agent patches often update a component or layout file, but the production route still renders old titles, empty descriptions or missing canonical tags. We check the live HTML.
No working og:image after deployment
A repo can contain a perfect preview image while the deployed URL returns a 404 or a relative path social platforms cannot fetch.
Icon buttons and generated controls lack names
Agents often compose polished UI from icon components. Without aria-labels, screen readers and automated accessibility checks only see anonymous buttons.
Signup or checkout page has weak trust context
The feature may work, but first-time visitors need privacy, pricing, support and expectation-setting before they enter email or payment details.
Security headers never made it to production
Codex can add a header config, but hosting adapters and rewrites decide what actually ships. We grade the response headers users receive.
Client-heavy React after repeated agent edits
Fast agent loops can leave too many client components, large images and extra scripts on the landing page. The public result feels slower than the local preview.
Prompt scaffolding or TODO copy still visible
Agent sessions leave strings like TODO, sample copy, placeholder testimonials and generic headings. They make a real product feel unfinished.
Analytics exists but conversions are invisible
Agents can add GA or PostHog snippets without wiring the actual form submit, signup or checkout event you need before paid traffic.
Codex pre-launch checklist
Check these before you share your link. The full PageLens AI audit catches everything else.
- Open the deployed URL and confirm the title, description and canonical render correctly
- Verify og:image is reachable from a public URL
- Add accessible names to icon-only buttons and controls
- Check that forms show errors to users, not only logs
- Confirm CSP, HSTS and X-Frame-Options are present on the live response
- Search visible pages for TODO, lorem ipsum and placeholder testimonials
- Measure the homepage on mobile after agent edits
- Wire analytics to real conversion events before paid traffic
- Re-scan after Codex patches the report findings
This covers the basics. A full PageLens AI scan checks hundreds of rules across 10 categories — including the ones that are hard to spot manually.
Get fixes you can paste straight into Codex
After your scan, download the Markdown report and use this prompt with your AI builder to fix everything automatically.
You are working in Codex on my website. I ran a PageLens AI audit on the live deployment. For each finding below, inspect the relevant files, make the smallest safe patch, avoid unrelated refactors, and return verification steps. Start with HIGH severity findings: [paste findings here]
From URL to fix-list in five minutes
Drop your URL
Paste the live URL of your Codex-built site. Pick how many pages to scan.
We crawl + analyse
Real headless Chrome visits every page, captures screenshots, reads the rendered HTML and headers, then a vision-capable AI writes the findings.
Read the report
Severity-ranked findings, screenshots, fix suggestions, security headers grade, PDF export, share link.
Pick your size
Pay per scan from $1 — or subscribe to a plan from $19/mo for continuous monitoring.
Launch Pack
$49
Up to 15 pages
Launch Scan
$1
Up to 3 pages
Full Site Scan
$15
Up to 25 pages
Not ready to scan your Codex build yet?
Get the practical pre-launch checklist by email, with the same builder and launch context preserved for your $1 audit link.
Questions Codex users ask us
Is this for sites built with Codex?
Yes. If Codex wrote code, reviewed patches or handled the repair loop, PageLens AI checks the deployed public result and gives Codex evidence-backed fixes to apply next.
Why not just ask Codex to review the code?
Code review is valuable, but launch risk is visible in the browser: rendered metadata, response headers, social previews, mobile layout, accessibility names and trust copy. PageLens AI checks that surface directly.
Can I paste the report back into Codex?
That is the intended workflow. Download the Markdown report, paste the top findings into Codex, ask for the smallest safe patch, then re-scan to prove the live site improved.
Give Codex better evidence before you ask it to fix launch risk.
Free instant check - no signup. Launch Pack from $49: fix with your AI builder, re-scan, and prove it improved.