https://www.hyundai.com/etc.clientlibs/hyundai-wwn... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://dmassets.hyundai.com/is/image/hyundaiautoe... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
41images1019 KB
0oversized-0 KB
7legacy 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 (8584 KB)
PASS
9 fonts (8584 KB)
Info::
i
9 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
9
8584 KB total
Render-blocking
0
of 9
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
HyundaiSansHeadPro-Bold...woff2swap
Size1152 KB
Load time119 ms
Start360 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
HyundaiSansHeadPro-Medi...woff2swap
Size1176 KB
Load time144 ms
Start360 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
HyundaiSansHeadPro-Regu...woff2swap
Size1137 KB
Load time167 ms
Start360 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
HyundaiSansHeadPro-Ligh...woff2swap
Size1137 KB
Load time191 ms
Start361 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
HyundaiSansTextPro-Bold...woff2swap
Size1356 KB
Load time218 ms
Start361 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
HyundaiSansTextPro-Medi...woff2swap
Size1344 KB
Load time247 ms
Start361 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
HyundaiSansTextPro-Regu...woff2swap
Size1266 KB
Load time273 ms
Start362 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
iconfont1.0.231-SNAPSHO...woff2swap
Size7 KB
Load time36 ms
Start362 ms
RiskFOUT — text flashes from fallback to web font
iconfont1.0.231-SNAPSHO...woffswap
Size9 KB
Load time240 ms
Start363 ms
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 ~4287 KB and ~8574 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 Caching
max-age=300 (5 minutes)
PASS
max-age=300 (5 minutes)
Info::
✓
Cache-Control header is set
Got: max-age=300
Info::
✓
Effective TTL: 5 minutes (max-age=300)
Info::
i
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
max-age=300
Directive
Value
Meaning
max-age
300
Cache for 5 minutes
Effective TTL: 300 seconds
Network Waterfall
91 requests over 3345ms
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-party2037ms · 3930KB · €22/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.hyundai.com
www.hyundai.com
Other
351ms
801 KB
65%
€4/mo
Costly
www.hyundai.com
www.hyundai.com
Other
278ms
41 KB
—
€3/mo
Costly
Unattributable
Unattributable
Other
238ms
0 KB
—
€3/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
231ms
149 KB
27%
€3/mo
Costly
www.hyundai.com
www.hyundai.com
Other
134ms
572 KB
79%
€1/mo
Optional
cdn-eu.dynamicyield.com
cdn-eu.dynamicyield.com
Other
121ms
112 KB
63%
€1/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
115ms
122 KB
47%
€1/mo
Optional
t.contentsquare.net
t.contentsquare.net
Other
101ms
155 KB
54%
€1/mo
Optional
hlivedev.blob.core.windows.net
hlivedev.blob.core.windows.net
Other
94ms
1347 KB
58%
€1/mo
Optional
st-eu.dynamicyield.com
st-eu.dynamicyield.com
Other
87ms
6 KB
—
€1/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
64ms
173 KB
39%
€1/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
58ms
172 KB
44%
€1/mo
Optional
hyundai.app.baqend.com
hyundai.app.baqend.com
Other
57ms
58 KB
37%
€1/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
56ms
138 KB
40%
€1/mo
Optional
cdn-eu.dynamicyield.com
cdn-eu.dynamicyield.com
Other
50ms
84 KB
—
€1/mo
Optional
www.hyundai.com
Other
Costly
Execution351ms
Transfer801 KB
Unused65%
Monthly Cost€4/mo
www.hyundai.com
Other
Costly
Execution278ms
Transfer41 KB
Monthly Cost€3/mo
Unattributable
Other
Costly
Execution238ms
Transfer0 KB
Monthly Cost€3/mo
Google Tag Manager
Tag Manager
Costly
Execution231ms
Transfer149 KB
Unused27%
Monthly Cost€3/mo
www.hyundai.com
Other
Optional
Execution134ms
Transfer572 KB
Unused79%
Monthly Cost€1/mo
cdn-eu.dynamicyield.com
Other
Optional
Execution121ms
Transfer112 KB
Unused63%
Monthly Cost€1/mo
Google Tag Manager
Tag Manager
Optional
Execution115ms
Transfer122 KB
Unused47%
Monthly Cost€1/mo
t.contentsquare.net
Other
Optional
Execution101ms
Transfer155 KB
Unused54%
Monthly Cost€1/mo
hlivedev.blob.core.windows.net
Other
Optional
Execution94ms
Transfer1347 KB
Unused58%
Monthly Cost€1/mo
st-eu.dynamicyield.com
Other
Optional
Execution87ms
Transfer6 KB
Monthly Cost€1/mo
Google Tag Manager
Tag Manager
Optional
Execution64ms
Transfer173 KB
Unused39%
Monthly Cost€1/mo
Google Tag Manager
Tag Manager
Optional
Execution58ms
Transfer172 KB
Unused44%
Monthly Cost€1/mo
hyundai.app.baqend.com
Other
Optional
Execution57ms
Transfer58 KB
Unused37%
Monthly Cost€1/mo
Google Tag Manager
Tag Manager
Optional
Execution56ms
Transfer138 KB
Unused40%
Monthly Cost€1/mo
cdn-eu.dynamicyield.com
Other
Optional
Execution50ms
Transfer84 KB
Monthly Cost€1/mo
These scripts may cost more than they're worth
www.hyundai.com adds 351ms and costs ~€4/month
www.hyundai.com adds 278ms and costs ~€3/month
Unattributable adds 238ms and costs ~€3/month
Google Tag Manager adds 231ms and costs ~€3/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.hyundai.com takes 351ms 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
65% of www.hyundai.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
www.hyundai.com takes 278ms 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 238ms 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 231ms 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
79% of www.hyundai.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
63% of cdn-eu.dynamicyield.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
54% of t.contentsquare.net'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
58% of hlivedev.blob.core.windows.net'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.