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
30 images, 0 KB saveable
REVIEW
30 images, 0 KB saveable
Warning::
!
https://www.razer.com/assets/images/mega-menu/menu... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.razer.com/assets/images/mega-menu/menu... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
30images586 KB
0oversized-0 KB
19legacy format
2missing 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
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 (302 KB)
PASS
9 fonts (302 KB)
Info::
i
9 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
9
302 KB total
Render-blocking
0
of 9
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
RazerF5SemiBold.woffwoffswap
Size38 KB
Load time41 ms
Start585 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
RazerF5Light.woffwoffswap
Size38 KB
Load time67 ms
Start585 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
RazerF5.woffwoffswap
Size37 KB
Load time35 ms
Start586 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
phoenix-icons.ttfttfswap
Size4 KB
Load time67 ms
Start586 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
flUhRq6tzZclQEJ-Vdg-Iui...woff2swap
Size59 KB
Load time101 ms
Start586 ms
RiskFOUT — text flashes from fallback to web font
RazerF5Bold.woffwoffswap
Size35 KB
Load time35 ms
Start877 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
KFO7CnqEu92Fr1ME7kSn66a...woff2swap
Size42 KB
Load time36 ms
Start877 ms
RiskFOUT — text flashes from fallback to web font
KFO5CnqEu92Fr1Mu53ZEC9_...woff2swap
Size46 KB
Load time38 ms
Start877 ms
RiskFOUT — text flashes from fallback to web font
fontwoff2swap
Size2 KB
Load time26 ms
Start1.8 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)
Fixing the unchecked items could save ~46 KB and ~92 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
22 hints, 0 missing preconnects
PASS
22 hints, 0 missing preconnects
Info::
✓
Page uses 22 resource hint(s)
Current Resource Hints
preconnect
+2
12
preload
6
dns-prefetch
4
prefetch—
22 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
139 requests over 5036ms
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-party6057ms · 1989KB · €32/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
Unattributable
Unattributable
Other
944ms
0 KB
—
€5/mo
Costly
www.razer.com
www.razer.com
Other
754ms
117 KB
—
€4/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
742ms
206 KB
32%
€4/mo
Costly
(program):2
(program):2
Other
721ms
0 KB
—
€4/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
424ms
168 KB
46%
€2/mo
Costly
3e8f6ac6dc32.cdn4.forter.com
3e8f6ac6dc32.cdn4.forter.com
Other
421ms
218 KB
43%
€2/mo
Costly
cdn1.affirm.com
cdn1.affirm.com
Other
384ms
150 KB
36%
€2/mo
Costly
razer.app.baqend.com
razer.app.baqend.com
Other
374ms
68 KB
46%
€2/mo
Costly
cdn-cookieyes.com
cdn-cookieyes.com
Other
268ms
9 KB
—
€1/mo
Costly
www.razer.com
www.razer.com
Other
208ms
312 KB
—
€1/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
179ms
169 KB
39%
€1/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
143ms
138 KB
50%
€1/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
129ms
140 KB
45%
€1/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
117ms
131 KB
47%
€1/mo
Optional
www.razer.com
www.razer.com
Other
112ms
5 KB
—
€1/mo
Optional
assets2.razerzone.com
assets2.razerzone.com
Other
81ms
38 KB
63%
€0/mo
Optional
jsDelivr
cdn.jsdelivr.net
CDN
54ms
122 KB
93%
€0/mo
Optional
Unattributable
Other
Costly
Execution944ms
Transfer0 KB
Monthly Cost€5/mo
www.razer.com
Other
Costly
Execution754ms
Transfer117 KB
Monthly Cost€4/mo
Google Tag Manager
Tag Manager
Costly
Execution742ms
Transfer206 KB
Unused32%
Monthly Cost€4/mo
(program):2
Other
Costly
Execution721ms
Transfer0 KB
Monthly Cost€4/mo
Google Tag Manager
Tag Manager
Costly
Execution424ms
Transfer168 KB
Unused46%
Monthly Cost€2/mo
3e8f6ac6dc32.cdn4.forter.com
Other
Costly
Execution421ms
Transfer218 KB
Unused43%
Monthly Cost€2/mo
cdn1.affirm.com
Other
Costly
Execution384ms
Transfer150 KB
Unused36%
Monthly Cost€2/mo
razer.app.baqend.com
Other
Costly
Execution374ms
Transfer68 KB
Unused46%
Monthly Cost€2/mo
cdn-cookieyes.com
Other
Costly
Execution268ms
Transfer9 KB
Monthly Cost€1/mo
www.razer.com
Other
Costly
Execution208ms
Transfer312 KB
Monthly Cost€1/mo
Google Tag Manager
Tag Manager
Optional
Execution179ms
Transfer169 KB
Unused39%
Monthly Cost€1/mo
Google Tag Manager
Tag Manager
Optional
Execution143ms
Transfer138 KB
Unused50%
Monthly Cost€1/mo
Google Tag Manager
Tag Manager
Optional
Execution129ms
Transfer140 KB
Unused45%
Monthly Cost€1/mo
Google Tag Manager
Tag Manager
Optional
Execution117ms
Transfer131 KB
Unused47%
Monthly Cost€1/mo
www.razer.com
Other
Optional
Execution112ms
Transfer5 KB
Monthly Cost€1/mo
assets2.razerzone.com
Other
Optional
Execution81ms
Transfer38 KB
Unused63%
Monthly Cost€0/mo
jsDelivr
CDN
Optional
Execution54ms
Transfer122 KB
Unused93%
Monthly Cost€0/mo
These scripts may cost more than they're worth
Unattributable adds 944ms and costs ~€5/month
www.razer.com adds 754ms and costs ~€4/month
Google Tag Manager adds 742ms and costs ~€4/month
(program):2 adds 721ms and costs ~€4/month
Google Tag Manager adds 424ms and costs ~€2/month
3e8f6ac6dc32.cdn4.forter.com adds 421ms and costs ~€2/month
cdn1.affirm.com adds 384ms and costs ~€2/month
razer.app.baqend.com adds 374ms and costs ~€2/month
cdn-cookieyes.com adds 268ms and costs ~€1/month
www.razer.com adds 208ms and costs ~€1/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
Unattributable takes 944ms 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.razer.com takes 754ms 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
Google Tag Manager takes 742ms 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
(program):2 takes 721ms 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
Google Tag Manager takes 424ms 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
3e8f6ac6dc32.cdn4.forter.com takes 421ms 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
cdn1.affirm.com takes 384ms 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
razer.app.baqend.com takes 374ms 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
cdn-cookieyes.com takes 268ms 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.razer.com takes 208ms 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
63% of assets2.razerzone.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
93% of jsDelivr'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.