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
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
10 fonts (742 KB)
PASS
10 fonts (742 KB)
Info::
i
10 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
10
742 KB total
Render-blocking
0
of 10
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
AvenirNextRegular_e7a17...unknownswap
Size99 KB
Load time144 ms
Start246 ms
RiskFOUT — text flashes from fallback to web font
WebRupee.V2.0_77414ca.svgunknownswap
Size2 KB
Load time79 ms
Start246 ms
RiskFOUT — text flashes from fallback to web font
21f30c285f083c824c2378f...unknownswap
Size488 KB
Load time140 ms
Start246 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
88cee532c04015cd5f1dbab...unknownswap
Size23 KB
Load time105 ms
Start246 ms
RiskFOUT — text flashes from fallback to web font
c2fd6d97f8226a5131974c9...unknownswap
Size22 KB
Load time105 ms
Start247 ms
RiskFOUT — text flashes from fallback to web font
67097b46b4b102330a8cf77...unknownswap
Size22 KB
Load time124 ms
Start247 ms
RiskFOUT — text flashes from fallback to web font
vivo-icons.DnEakZZq.woff2woff2swap
Size7 KB
Load time13 ms
Start531 ms
RiskFOUT — text flashes from fallback to web font
366787f43c43731f2af53a2...woff2swap
Size69 KB
Load time18 ms
Start531 ms
RiskFOUT — text flashes from fallback to web font
393ccffe7269f925987d2f7...woff2swap
Size5 KB
Load time15 ms
Start733 ms
RiskFOUT — text flashes from fallback to web font
81b34a1a609f09194fb7c02...woff2swap
Size5 KB
Load time16 ms
Start735 ms
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)
Fixing the unchecked items could save ~441 KB and ~882 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
15 hints, 0 missing preconnects
PASS
15 hints, 0 missing preconnects
Info::
✓
Page uses 15 resource hint(s)
Current Resource Hints
preconnect—
preload
7
dns-prefetch
4
prefetch
4
15 resource hints configured
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
Network Waterfall
84 requests over 1643ms
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-party3051ms · 295KB · ¥151/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
portalstatic-ex.vivo.com
portalstatic-ex.vivo.com
Other
932ms
38 KB
—
¥46/mo
Costly
www.vivo.com
www.vivo.com
Other
821ms
53 KB
—
¥41/mo
Costly
Unattributable
Unattributable
Other
621ms
0 KB
—
¥31/mo
Costly
portalstatic-ex.vivo.com
portalstatic-ex.vivo.com
Other
387ms
11 KB
—
¥19/mo
Costly
portalstatic-ex.vivo.com
portalstatic-ex.vivo.com
Other
84ms
34 KB
74%
¥4/mo
Optional
portalstatic-ex.vivo.com
portalstatic-ex.vivo.com
Other
80ms
88 KB
32%
¥4/mo
Optional
vcm-static.vivo.com
vcm-static.vivo.com
Other
64ms
38 KB
64%
¥3/mo
Optional
asia-exstatic.vivoglobal.com
asia-exstatic.vivoglobal.com
Other
62ms
32 KB
68%
¥3/mo
Optional
portalstatic-ex.vivo.com
Other
Costly
Execution932ms
Transfer38 KB
Monthly Cost¥46/mo
www.vivo.com
Other
Costly
Execution821ms
Transfer53 KB
Monthly Cost¥41/mo
Unattributable
Other
Costly
Execution621ms
Transfer0 KB
Monthly Cost¥31/mo
portalstatic-ex.vivo.com
Other
Costly
Execution387ms
Transfer11 KB
Monthly Cost¥19/mo
portalstatic-ex.vivo.com
Other
Optional
Execution84ms
Transfer34 KB
Unused74%
Monthly Cost¥4/mo
portalstatic-ex.vivo.com
Other
Optional
Execution80ms
Transfer88 KB
Unused32%
Monthly Cost¥4/mo
vcm-static.vivo.com
Other
Optional
Execution64ms
Transfer38 KB
Unused64%
Monthly Cost¥3/mo
asia-exstatic.vivoglobal.com
Other
Optional
Execution62ms
Transfer32 KB
Unused68%
Monthly Cost¥3/mo
These scripts may cost more than they're worth
portalstatic-ex.vivo.com adds 932ms and costs ~¥46/month
www.vivo.com adds 821ms and costs ~¥41/month
Unattributable adds 621ms and costs ~¥31/month
portalstatic-ex.vivo.com adds 387ms and costs ~¥19/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
portalstatic-ex.vivo.com takes 932ms 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
www.vivo.com takes 821ms 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 621ms 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
portalstatic-ex.vivo.com takes 387ms 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
74% of portalstatic-ex.vivo.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.
Source: web.dev
64% of vcm-static.vivo.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.
Source: web.dev
68% of asia-exstatic.vivoglobal.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.