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
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
i
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
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+
Font Loading
9 fonts (562 KB)
PASS
9 fonts (562 KB)
Info::
i
9 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
9
562 KB total
Render-blocking
0
of 9
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
UcC73FwrK3iLTeHuS_nVMrM...woff2swap
Size47 KB
Load time134 ms
Start714 ms
RiskFOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a...woff2swap
Size37 KB
Load time107 ms
Start714 ms
RiskFOUT — text flashes from fallback to web font
fa-solid-900.woff2woff2swap
Size153 KB
Load time98 ms
Start732 ms
RiskFOUT — text flashes from fallback to web font
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
fa-solid-900.woff2woff2swap
Size123 KB
Load time139 ms
Start791 ms
RiskFOUT — text flashes from fallback to web font
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
co3bmX5slCNuHLi8bLeY9MK...woff2swap
Size37 KB
Load time94 ms
Start791 ms
RiskFOUT — text flashes from fallback to web font
JTUSjIg1_i6t8kCHKm459Wl...woff2swap
Size35 KB
Load time85 ms
Start792 ms
RiskFOUT — text flashes from fallback to web font
co3ZmX5slCNuHLi8bLeY9MK...woff2swap
Size38 KB
Load time59 ms
Start907 ms
RiskFOUT — text flashes from fallback to web font
tawk-font-icon-3.woffwoffswap
Size92 KB
Load time386 ms
Start2.8 s
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
tawk-font-icon-3.woffwoffswap
Size0 KB
Load time2 ms
Start4.2 s
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
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)
Fixing the unchecked items could save ~166 KB and ~332 ms
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+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
✓
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+
Compression Algorithm
Main response uses brotli
PASS
Main response uses brotli
Info::
✓
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
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+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
✓
`Vary` header declared: Accept-Encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
✓
`ETag` present -- conditional GET supported
Network Waterfall
77 requests over 4229ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
43%of JavaScript execution is third-party
First-party Third-party474ms · 553KB · $6/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
Tawk.to
embed.tawk.to
Chat
237ms
114 KB
42%
$3/mo
Costly
jsDelivr
cdn.jsdelivr.net
CDN
94ms
41 KB
—
$1/mo
Optional
maps.googleapis.com
maps.googleapis.com
Other
88ms
365 KB
55%
$1/mo
Optional
Tawk.to
embed.tawk.to
Chat
55ms
32 KB
—
$1/mo
Optional
Tawk.to
Chat
Costly
Execution237ms
Transfer114 KB
Unused42%
Monthly Cost$3/mo
jsDelivr
CDN
Optional
Execution94ms
Transfer41 KB
Monthly Cost$1/mo
maps.googleapis.com
Other
Optional
Execution88ms
Transfer365 KB
Unused55%
Monthly Cost$1/mo
Tawk.to
Chat
Optional
Execution55ms
Transfer32 KB
Monthly Cost$1/mo
These scripts may cost more than they're worth
Tawk.to adds 237ms and costs ~$3/month
43% of JavaScript execution time comes from third-party scripts.
Why this matters
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
Tawk.to takes 237ms 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
55% of maps.googleapis.com'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.