https://dmassets.hyundai.com/is/image/hyundaiautoe... 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.
Warning::
!
https://dmassets.hyundai.com/is/image/hyundaiautoe... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
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.
Warning::
!
https://dmassets.hyundai.com/is/image/hyundaiautoe... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
42images1005 KB
0oversized-0 KB
5legacy format
6missing 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
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 time118 ms
Start396 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 time147 ms
Start396 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 time173 ms
Start396 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 time192 ms
Start397 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 time221 ms
Start397 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 time248 ms
Start397 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 time268 ms
Start397 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 time236 ms
Start398 ms
RiskFOUT — text flashes from fallback to web font
iconfont1.0.231-SNAPSHO...woffswap
Size8 KB
Load time236 ms
Start398 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
15 hints, 0 missing preconnects
PASS
15 hints, 0 missing preconnects
Info::
✓
Page uses 15 resource hint(s)
Current Resource Hints
preconnect
3
preload
9
dns-prefetch
3
prefetch—
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
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
99 requests over 3541ms
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-party9389ms · 3930KB · €102/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.hyundai.com
www.hyundai.com
Other
2158ms
801 KB
65%
€23/mo
Costly
www.hyundai.com
www.hyundai.com
Other
1256ms
41 KB
—
€14/mo
Costly
t.contentsquare.net
t.contentsquare.net
Other
1143ms
155 KB
44%
€12/mo
Costly
Unattributable
Unattributable
Other
952ms
0 KB
—
€10/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
679ms
149 KB
27%
€7/mo
Costly
cdn-eu.dynamicyield.com
cdn-eu.dynamicyield.com
Other
551ms
112 KB
50%
€6/mo
Costly
www.hyundai.com
www.hyundai.com
Other
438ms
572 KB
79%
€5/mo
Costly
st-eu.dynamicyield.com
st-eu.dynamicyield.com
Other
436ms
6 KB
—
€5/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
426ms
122 KB
47%
€5/mo
Costly
hyundai.app.baqend.com
hyundai.app.baqend.com
Other
304ms
58 KB
39%
€3/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
267ms
173 KB
39%
€3/mo
Costly
hlivedev.blob.core.windows.net
hlivedev.blob.core.windows.net
Other
263ms
1347 KB
58%
€3/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
194ms
172 KB
44%
€2/mo
Optional
cdn-eu.dynamicyield.com
cdn-eu.dynamicyield.com
Other
166ms
84 KB
—
€2/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
155ms
138 KB
40%
€2/mo
Optional
www.hyundai.com
Other
Costly
Execution2158ms
Transfer801 KB
Unused65%
Monthly Cost€23/mo
www.hyundai.com
Other
Costly
Execution1256ms
Transfer41 KB
Monthly Cost€14/mo
t.contentsquare.net
Other
Costly
Execution1143ms
Transfer155 KB
Unused44%
Monthly Cost€12/mo
Unattributable
Other
Costly
Execution952ms
Transfer0 KB
Monthly Cost€10/mo
Google Tag Manager
Tag Manager
Costly
Execution679ms
Transfer149 KB
Unused27%
Monthly Cost€7/mo
cdn-eu.dynamicyield.com
Other
Costly
Execution551ms
Transfer112 KB
Unused50%
Monthly Cost€6/mo
www.hyundai.com
Other
Costly
Execution438ms
Transfer572 KB
Unused79%
Monthly Cost€5/mo
st-eu.dynamicyield.com
Other
Costly
Execution436ms
Transfer6 KB
Monthly Cost€5/mo
Google Tag Manager
Tag Manager
Costly
Execution426ms
Transfer122 KB
Unused47%
Monthly Cost€5/mo
hyundai.app.baqend.com
Other
Costly
Execution304ms
Transfer58 KB
Unused39%
Monthly Cost€3/mo
Google Tag Manager
Tag Manager
Costly
Execution267ms
Transfer173 KB
Unused39%
Monthly Cost€3/mo
hlivedev.blob.core.windows.net
Other
Costly
Execution263ms
Transfer1347 KB
Unused58%
Monthly Cost€3/mo
Google Tag Manager
Tag Manager
Optional
Execution194ms
Transfer172 KB
Unused44%
Monthly Cost€2/mo
cdn-eu.dynamicyield.com
Other
Optional
Execution166ms
Transfer84 KB
Monthly Cost€2/mo
Google Tag Manager
Tag Manager
Optional
Execution155ms
Transfer138 KB
Unused40%
Monthly Cost€2/mo
These scripts may cost more than they're worth
www.hyundai.com adds 2158ms and costs ~€23/month
www.hyundai.com adds 1256ms and costs ~€14/month
t.contentsquare.net adds 1143ms and costs ~€12/month
Unattributable adds 952ms and costs ~€10/month
Google Tag Manager adds 679ms and costs ~€7/month
cdn-eu.dynamicyield.com adds 551ms and costs ~€6/month
www.hyundai.com adds 438ms and costs ~€5/month
st-eu.dynamicyield.com adds 436ms and costs ~€5/month
Google Tag Manager adds 426ms and costs ~€5/month
hyundai.app.baqend.com adds 304ms and costs ~€3/month
Google Tag Manager adds 267ms and costs ~€3/month
hlivedev.blob.core.windows.net adds 263ms 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 2158ms 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 1256ms 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
t.contentsquare.net takes 1143ms 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 952ms 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 679ms 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-eu.dynamicyield.com takes 551ms 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
50% 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
www.hyundai.com takes 438ms 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
st-eu.dynamicyield.com takes 436ms 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 426ms 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
hyundai.app.baqend.com takes 304ms 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 267ms 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
hlivedev.blob.core.windows.net takes 263ms 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
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.