Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
C
Image Optimization
Action
43 images, 0 KB saveable
REVIEW
43 images, 0 KB saveable
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://assets.netgear.com/transform/eyebrow-logos... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://assets.netgear.com/transform/page-title-sm... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.netgear.com/mobify/bundle/2706/static/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
43images1.7 MB
0oversized-0 KB
30legacy format
27missing dimensionsCLS risk
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
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
4 fonts (57 KB)
PASS
4 fonts (57 KB)
Info::
i
4 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
4
57 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
outfit-latin-600-normal...woff2swap
Size14 KB
Load time107 ms
Start668 ms
RiskFOUT — text flashes from fallback to web font
outfit-latin-500-normal...woff2swap
Size14 KB
Load time110 ms
Start669 ms
RiskFOUT — text flashes from fallback to web font
outfit-latin-400-normal...woff2swap
Size14 KB
Load time38 ms
Start768 ms
RiskFOUT — text flashes from fallback to web font
outfit-latin-700-normal...woff2swap
Size14 KB
Load time45 ms
Start769 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)
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
Network Waterfall
99 requests over 7189ms
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-party2873ms · 2551KB · $54/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.netgear.com
www.netgear.com
Other
1307ms
1234 KB
78%
$25/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
253ms
167 KB
32%
$5/mo
Costly
Unattributable
Unattributable
Other
219ms
0 KB
—
$4/mo
Costly
www.netgear.com
www.netgear.com
Other
217ms
97 KB
—
$4/mo
Costly
ob.powerstarsbuilding.com
ob.powerstarsbuilding.com
Other
180ms
45 KB
—
$3/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
139ms
179 KB
35%
$3/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
112ms
175 KB
40%
$2/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
101ms
144 KB
40%
$2/mo
Optional
api.consentjs.datagrail.io
api.consentjs.datagrail.io
Other
83ms
56 KB
—
$2/mo
Optional
unpkg
unpkg.com
CDN
74ms
2 KB
—
$1/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
71ms
145 KB
48%
$1/mo
Optional
www.netgear.com
www.netgear.com
Other
67ms
178 KB
50%
$1/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
50ms
129 KB
54%
$1/mo
Optional
www.netgear.com
Other
Costly
Execution1307ms
Transfer1234 KB
Unused78%
Monthly Cost$25/mo
Google Tag Manager
Tag Manager
Costly
Execution253ms
Transfer167 KB
Unused32%
Monthly Cost$5/mo
Unattributable
Other
Costly
Execution219ms
Transfer0 KB
Monthly Cost$4/mo
www.netgear.com
Other
Costly
Execution217ms
Transfer97 KB
Monthly Cost$4/mo
ob.powerstarsbuilding.com
Other
Optional
Execution180ms
Transfer45 KB
Monthly Cost$3/mo
Google Tag Manager
Tag Manager
Optional
Execution139ms
Transfer179 KB
Unused35%
Monthly Cost$3/mo
Google Tag Manager
Tag Manager
Optional
Execution112ms
Transfer175 KB
Unused40%
Monthly Cost$2/mo
Google Tag Manager
Tag Manager
Optional
Execution101ms
Transfer144 KB
Unused40%
Monthly Cost$2/mo
api.consentjs.datagrail.io
Other
Optional
Execution83ms
Transfer56 KB
Monthly Cost$2/mo
unpkg
CDN
Optional
Execution74ms
Transfer2 KB
Monthly Cost$1/mo
Google Tag Manager
Tag Manager
Optional
Execution71ms
Transfer145 KB
Unused48%
Monthly Cost$1/mo
www.netgear.com
Other
Optional
Execution67ms
Transfer178 KB
Unused50%
Monthly Cost$1/mo
Google Tag Manager
Tag Manager
Optional
Execution50ms
Transfer129 KB
Unused54%
Monthly Cost$1/mo
These scripts may cost more than they're worth
www.netgear.com adds 1307ms and costs ~$25/month
Google Tag Manager adds 253ms and costs ~$5/month
Unattributable adds 219ms and costs ~$4/month
www.netgear.com adds 217ms and costs ~$4/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.netgear.com takes 1307ms 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
78% of www.netgear.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
Google Tag Manager takes 253ms 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 219ms 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.netgear.com takes 217ms 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
54% of Google Tag Manager'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.