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
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.
Whether the site is served from green-energy infrastructure
REVIEW
Green Hosting
No green hosting detected
A+
Third-Party Impact
16% third-party, 0 ms blocking
PASS
16% third-party, 0 ms blocking
Info::
i
Third-party code accounts for 16% of page weight (680.7 KiB of 4.2 MiB)
Info::
✓
Third-party blocking time is low (0 ms)
84%
16%
First-party Third-party
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
8 fonts (138 KB)
PASS
8 fonts (138 KB)
Info::
i
8 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
8
138 KB total
Render-blocking
0
of 8
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
pxiEyp8kv8JHgFVrJJfecnF...woff2swap
Size8 KB
Load time11 ms
Start2.7 s
RiskFOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLEj6Z1x...woff2swap
Size8 KB
Load time13 ms
Start2.7 s
RiskFOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLCz7Z1x...woff2swap
Size8 KB
Load time16 ms
Start2.7 s
RiskFOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLDD4Z1x...woff2swap
Size8 KB
Load time24 ms
Start2.7 s
RiskFOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLBT5Z1x...woff2swap
Size7 KB
Load time20 ms
Start2.7 s
RiskFOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLGT9Z1x...woff2swap
Size8 KB
Load time15 ms
Start2.7 s
RiskFOUT — text flashes from fallback to web font
tawk-font-icon-3.woffwoffswap
Size92 KB
Load time36 ms
Start4.0 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 time8 ms
Start4.7 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 ~28 KB and ~56 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::
✓
`Last-Modified` present -- timestamp-based conditional GET supported
Consider also setting `ETag` for stronger revalidation -- ETags are content hashes that don't suffer from clock-skew or DST issues. Last-Modified alone is functional for conditional GETs and not a bug.
Network Waterfall
50 requests over 5067ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
28%of JavaScript execution is third-party
First-party Third-party622ms · 336KB · ₹1/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
Tawk.to
embed.tawk.to
Chat
345ms
114 KB
61%
₹0/mo
Costly
Tawk.to
embed.tawk.to
Chat
91ms
68 KB
45%
₹0/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
77ms
146 KB
47%
₹0/mo
Optional
Tawk.to
embed.tawk.to
Chat
58ms
3 KB
—
₹0/mo
Optional
Tawk.to
embed.tawk.to
Chat
52ms
5 KB
—
₹0/mo
Optional
Tawk.to
Chat
Costly
Execution345ms
Transfer114 KB
Unused61%
Monthly Cost₹0/mo
Tawk.to
Chat
Optional
Execution91ms
Transfer68 KB
Unused45%
Monthly Cost₹0/mo
Google Tag Manager
Tag Manager
Optional
Execution77ms
Transfer146 KB
Unused47%
Monthly Cost₹0/mo
Tawk.to
Chat
Optional
Execution58ms
Transfer3 KB
Monthly Cost₹0/mo
Tawk.to
Chat
Optional
Execution52ms
Transfer5 KB
Monthly Cost₹0/mo
These scripts may cost more than they're worth
Tawk.to adds 345ms and costs ~₹0/month
Tawk.to takes 345ms 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
61% of Tawk.to'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.