Replit ships fast. Replit doesn't tell you what's broken. We do — for $1.
Replit Agent and Replit Deployments are great at getting you to a live URL. They're not great at telling you that the favicon is Replit's, the headers are missing, and your DB is exposed.
Every Replit deployment we've scanned needed work before launch
Replit's Deployments make it trivial to ship. The catch: there's no opinionated checklist of what production-grade actually means. Our audit is that checklist — across 10 categories, with severity ratings.
The 7 issues we keep finding on Replit deployments
Each one is real, severity-ranked, and ships with a one-line fix suggestion in the report.
Database connection string in client code
Replit Agent has been observed to put DB credentials directly in the React fetch layer for ‘speed’. This is account-takeover-grade exposure.
Replit subdomain with no canonical to your real domain
If you bought a domain but kept the *.replit.app live, Google indexes both and splits your authority. Canonical tag fixes it in one line.
Replit logo as favicon
Browser tabs show Replit's logo on roughly half the deployments we've scanned. Easy fix; never spotted by the author.
Missing security headers (HSTS, CSP, X-Frame-Options)
Replit Deployments serve sane defaults but no application-level security headers. Score: F on securityheaders.com out of the box.
Cold-start latency on first paint
Replit's free/hobby tier cold-starts on every visit after inactivity. We measure and report TTFB so you know if your tier is the problem.
Missing meta description and OG tags
Replit Agent tends to skip <head> altogether. Search and social previews look terrible.
Color-only state indicators
Generated UIs often use red/green colour alone to indicate status. Fails WCAG 1.4.1 (use of colour).
Replit pre-launch checklist
Check these before you share your link. The full PageLens audit catches everything else.
- Move database credentials out of client-side code into Replit Secrets
- Set a canonical URL pointing to your custom domain (not *.replit.app)
- Replace the Replit favicon with your brand icon
- Add HSTS, CSP, and X-Frame-Options headers
- Add a custom <title> and <meta description> to every page
- Set og:image and og:title for social sharing
- Check cold-start latency — consider Always On if TTFB > 2s
- Use colour + icon (not colour alone) for status indicators
This covers the basics. A full PageLens scan checks hundreds of rules across 10 categories — including the ones that are hard to spot manually.
Get fixes you can paste straight into Replit
After your scan, download the Markdown report and use this prompt with your AI builder to fix everything automatically.
I deployed this app from Replit. PageLens AI found these issues. Fix each one, prioritising CRITICAL security issues first: [paste findings here]
From URL to fix-list in five minutes
Drop your URL
Paste the live URL of your Replit deployment. 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 for $5/mo weekly monitoring.
Launch Pack
$29
Up to 15 pages
Launch Scan
$1
Up to 3 pages
Full Site Scan
$15
Up to 25 pages
Questions Replit users ask us
I'm using a *.replit.app subdomain. Will the audit still help?
Yes. Most issues we surface (headers, SEO, accessibility, content) are independent of where you're hosted. We'll also flag the canonical-tag issue specific to using a Replit subdomain alongside a custom domain.
Does Replit's Always-On affect what you can scan?
We just hit your URL like a real visitor. If your Repl is sleeping when we arrive, we'll surface that as a finding (cold-start latency hurts both SEO and conversion).
Built with something else?
Ship from Replit, audit with PageLens — $1, no subscription.
Free instant check — no signup. Full Launch Pack from $29. Refund if we find nothing actionable.