Run your first scan, understand the report, and fix your top findings - in under 10 minutes.
Go to health.nel404labs.co.za/sample.php and paste any publicly accessible URL into the scan box. You do not need an account for the free scan.
https:// and with or without www as your canonical form. Scanning both variants will yield slightly different results.
Click Scan now. You will see live progress as checks complete. Most results appear within 30 seconds; the full Lighthouse performance score follows in 60–90 seconds.
The top of the report shows a composite score out of 100, aggregated across all six categories. Think of it as a general health indicator - it is useful for tracking trends, not for obsessing over a single number.
Each of the six categories (Performance, SEO, Security, Accessibility, Mobile, Best Practices) gets its own score. Focus on your lowest-scoring category first - that is where you will get the most impact for the least effort.
Below the scores, every flagged issue includes:
Critical findings (shown in red) are things like missing HTTPS, mixed content, or broken canonical tags. These have a direct impact on SEO, security, or user trust. Fix these first.
High findings (amber) typically cover missing security headers, poor Lighthouse scores, or accessibility failures. These are addressable within a few hours of development time for most sites.
.htaccess file or web server config in under 5 minutes. Target: X-Frame-Options, X-Content-Type-Options, Referrer-Policy.<img> needs a meaningful alt attribute for both accessibility and SEO.If you are on the Agency plan, contact hello@nel404labs.co.za with your logo file, primary colour hex code, and the email address you want reports sent from. We will configure your tenant within one business day.
Once configured, reports generated under your account will carry your branding in the PDF header and email footer - no Nel404 Labs branding visible to your clients.