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Example SlowCheck report
42
Slow — needs work · Speed score 42/100
Server response and large images are the biggest delays on this example page.
About this example: Sample findings for illustration. Run a real scan on your own URL for actual measurements.
What to fix first
Fix first
Server took 1.5 seconds to respond
Why it matters: the page cannot start rendering until the server begins responding.
Measured
TTFB: 1.5s
How to fix
Check server-side processing, database queries, hosting resources, caching, and CDN configuration.
Important
Save ~2.6 MB
Hero image is 2.8 MB
Why it matters: this large image can delay the main visual content of the page.
Measured
hero.jpg · 2.8 MB
How to fix
Compress the image and consider serving WebP or AVIF.
Worth fixing
JavaScript blocks loading — 1.4 MB
Why it matters: large scripts can delay interactive content.
Measured
app.js · 1.4 MB
How to fix
Defer non-critical JavaScript and split unused code.
Page weight
Total1.5 MB · 47 files
How it feels
Server response
TTFB
Slow
1500ms
Main content
LCP
Needs work
3100ms
Security configuration
Basic automated configuration checks — not a penetration test or complete security audit.
Needs attention
HSTS header missing
Why it matters: HSTS tells clients to use HTTPS for future requests.
Add an appropriate Strict-Transport-Security header at the server or CDN level.
Needs attention
Cookies missing Secure / HttpOnly flags
Why it matters: without these flags, cookies may be exposed on insecure requests or scripts.
Set Secure and HttpOnly on session cookies; use SameSite where appropriate.
HTTPS enabled
Example page loads over https.
SEO checks
71 / 100 (example)Fix these first:
Missing meta description
Multiple H1 elements
14 images missing alt text
Demo content · Run a real scan