Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
i
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
C
Compression Algorithm
Action
Main response served uncompressed
REVIEW
Main response served uncompressed
Info::
i
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
i
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW
Green Hosting
No green hosting detected
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
✓
All text resources are compressed
All text resources are properly compressed.
A
Image Optimization
14 images, 0 KB saveable
PASS
14 images, 0 KB saveable
Info::
✓
All images are well-optimized
14images1.4 MB
0oversized-0 KB
3legacy format
0missing dimensionsCLS risk
A+
Font Loading
9 fonts (198 KB)
PASS
9 fonts (198 KB)
Info::
i
9 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
9
198 KB total
Render-blocking
0
of 9
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
raleway-latin-700-norma...woff2swap
Size23 KB
Load time72 ms
Start1.7 s
RiskFOUT — text flashes from fallback to web font
barlow-latin-400-normal...woff2swap
Size22 KB
Load time81 ms
Start1.7 s
RiskFOUT — text flashes from fallback to web font
montserrat-latin-500-no...woff2swap
Size19 KB
Load time93 ms
Start1.7 s
RiskFOUT — text flashes from fallback to web font
montserrat-latin-400-no...woff2swap
Size19 KB
Load time104 ms
Start1.7 s
RiskFOUT — text flashes from fallback to web font
raleway-latin-600-norma...woff2swap
Size23 KB
Load time121 ms
Start1.7 s
RiskFOUT — text flashes from fallback to web font
raleway-latin-600-itali...woff2swap
Size23 KB
Load time113 ms
Start1.7 s
RiskFOUT — text flashes from fallback to web font
raleway-latin-700-itali...woff2swap
Size23 KB
Load time133 ms
Start1.7 s
RiskFOUT — text flashes from fallback to web font
barlow-latin-500-normal...woff2swap
Size22 KB
Load time101 ms
Start1.7 s
RiskFOUT — text flashes from fallback to web font
lato-latin-700-normal.w...woff2swap
Size23 KB
Load time102 ms
Start1.7 s
RiskFOUT — text flashes from fallback to web font
Optimization checklist
Preload critical fonts (priority=high)
Use woff2 format for all fonts
Set font-display to swap, optional, or fallback
Subset large fonts (≤100 KB each)
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
✓
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
✓
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
✓
No resource hint issues
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
✓
LCP image preload audit not available for this scan
A+
Main HTML Cache-Control
Main HTML uses no-store -- correct for sensitive/dynamic content
PASS
Main HTML uses no-store -- correct for sensitive/dynamic content
Info::
✓
Main HTML uses no-store -- correct for sensitive/dynamic content
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
✓
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
JavaScript Blocking
No render-blocking JS or document.write usage detected
PASS
No render-blocking JS or document.write usage detected
Info::
✓
No JavaScript blocking issues detected
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
✓
No CSS performance depth issues detected
Network Waterfall
71 requests over 3230ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100%of JavaScript execution is third-party
First-party Third-party1658ms · 473KB · A$29/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.rjwdigital.com.au
www.rjwdigital.com.au
Other
643ms
85 KB
—
A$11/mo
Costly
Unattributable
Unattributable
Other
430ms
0 KB
—
A$7/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
192ms
147 KB
43%
A$3/mo
Optional
Facebook Pixel
connect.facebook.net
Advertising
106ms
97 KB
33%
A$2/mo
Optional
Facebook Pixel
connect.facebook.net
Advertising
99ms
46 KB
—
A$2/mo
Optional
websitespeedycdn.b-cdn.net
websitespeedycdn.b-cdn.net
Other
65ms
9 KB
—
A$1/mo
Optional
b-cloud.becdn.net
b-cloud.becdn.net
Other
64ms
88 KB
81%
A$1/mo
Optional
b-cloud.becdn.net
b-cloud.becdn.net
Other
58ms
1 KB
—
A$1/mo
Optional
www.rjwdigital.com.au
Other
Costly
Execution643ms
Transfer85 KB
Monthly CostA$11/mo
Unattributable
Other
Costly
Execution430ms
Transfer0 KB
Monthly CostA$7/mo
Google Tag Manager
Tag Manager
Optional
Execution192ms
Transfer147 KB
Unused43%
Monthly CostA$3/mo
Facebook Pixel
Advertising
Optional
Execution106ms
Transfer97 KB
Unused33%
Monthly CostA$2/mo
Facebook Pixel
Advertising
Optional
Execution99ms
Transfer46 KB
Monthly CostA$2/mo
websitespeedycdn.b-cdn.net
Other
Optional
Execution65ms
Transfer9 KB
Monthly CostA$1/mo
b-cloud.becdn.net
Other
Optional
Execution64ms
Transfer88 KB
Unused81%
Monthly CostA$1/mo
b-cloud.becdn.net
Other
Optional
Execution58ms
Transfer1 KB
Monthly CostA$1/mo
These scripts may cost more than they're worth
www.rjwdigital.com.au adds 643ms and costs ~A$11/month
Unattributable adds 430ms and costs ~A$7/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
Why this matters
When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.
Learn more ▾▴
Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.
Source: web.dev
www.rjwdigital.com.au takes 643ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 430ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
81% of b-cloud.becdn.net's code is unused. The script may be loading features you don't use.
Why this matters
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.