https://www.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://app.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/sites/default/files/sty... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.al-monitor.com/themes/custom/alm/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
50images2.2 MB
0oversized-0 KB
50legacy 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 (136 KB)
PASS
4 fonts (136 KB)
Info::
i
4 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
4
136 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
92zatBhPNqw73oTd4jQmfxI...woff2swap
Size26 KB
Load time37 ms
Start417 ms
RiskFOUT — text flashes from fallback to web font
vEFF2_tTDB4M7-auWDN0ahZ...woff2swap
Size50 KB
Load time64 ms
Start425 ms
RiskFOUT — text flashes from fallback to web font
vEFH2_tTDB4M7-auWDN0ahZ...woff2swap
Size50 KB
Load time52 ms
Start447 ms
RiskFOUT — text flashes from fallback to web font
fontello-effa7ce16fec99...woffswap
Size10 KB
Load time5 ms
Start718 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 ~3 KB and ~6 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+
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=86400 (1 day)
PASS
max-age=86400 (1 day)
Info::
✓
Cache-Control header is set
Got: public, max-age=86400
Info::
✓
Effective TTL: 1 day (max-age=86400)
Info::
i
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
public, max-age=86400
Directive
Value
Meaning
public
—
Any cache may store this response
max-age
86400
Cache for 1 day
Effective TTL: 86400 seconds
Network Waterfall
97 requests over 2755ms
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-party4089ms · 850KB · €71/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
web-player.art19.com
web-player.art19.com
Other
757ms
0 KB
—
€13/mo
Costly
www.al-monitor.com
www.al-monitor.com
Other
634ms
33 KB
—
€11/mo
Costly
Unattributable
Unattributable
Other
530ms
0 KB
—
€9/mo
Costly
js.intercomcdn.com
js.intercomcdn.com
Other
466ms
144 KB
60%
€8/mo
Costly
HubSpot Analytics
js.hs-analytics.net
Analytics
443ms
42 KB
—
€8/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
342ms
168 KB
38%
€6/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
303ms
178 KB
37%
€5/mo
Costly
www.al-monitor.com
www.al-monitor.com
Other
213ms
67 KB
70%
€4/mo
Costly
Hotjar
script.hotjar.com
Session Replay
138ms
57 KB
67%
€2/mo
Optional
Facebook Pixel
connect.facebook.net
Advertising
106ms
97 KB
34%
€2/mo
Optional
Facebook Pixel
connect.facebook.net
Advertising
101ms
45 KB
—
€2/mo
Optional
Facebook Pixel
connect.facebook.net
Advertising
56ms
19 KB
—
€1/mo
Optional
web-player.art19.com
Other
Costly
Execution757ms
Transfer0 KB
Monthly Cost€13/mo
www.al-monitor.com
Other
Costly
Execution634ms
Transfer33 KB
Monthly Cost€11/mo
Unattributable
Other
Costly
Execution530ms
Transfer0 KB
Monthly Cost€9/mo
js.intercomcdn.com
Other
Costly
Execution466ms
Transfer144 KB
Unused60%
Monthly Cost€8/mo
HubSpot Analytics
Analytics
Costly
Execution443ms
Transfer42 KB
Monthly Cost€8/mo
Google Tag Manager
Tag Manager
Costly
Execution342ms
Transfer168 KB
Unused38%
Monthly Cost€6/mo
Google Tag Manager
Tag Manager
Costly
Execution303ms
Transfer178 KB
Unused37%
Monthly Cost€5/mo
www.al-monitor.com
Other
Costly
Execution213ms
Transfer67 KB
Unused70%
Monthly Cost€4/mo
Hotjar
Session Replay
Optional
Execution138ms
Transfer57 KB
Unused67%
Monthly Cost€2/mo
Facebook Pixel
Advertising
Optional
Execution106ms
Transfer97 KB
Unused34%
Monthly Cost€2/mo
Facebook Pixel
Advertising
Optional
Execution101ms
Transfer45 KB
Monthly Cost€2/mo
Facebook Pixel
Advertising
Optional
Execution56ms
Transfer19 KB
Monthly Cost€1/mo
These scripts may cost more than they're worth
web-player.art19.com adds 757ms and costs ~€13/month
www.al-monitor.com adds 634ms and costs ~€11/month
Unattributable adds 530ms and costs ~€9/month
js.intercomcdn.com adds 466ms and costs ~€8/month
HubSpot Analytics adds 443ms and costs ~€8/month
Google Tag Manager adds 342ms and costs ~€6/month
Google Tag Manager adds 303ms and costs ~€5/month
www.al-monitor.com adds 213ms 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
web-player.art19.com takes 757ms 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.al-monitor.com takes 634ms 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 530ms 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
js.intercomcdn.com takes 466ms 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
60% of js.intercomcdn.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
HubSpot Analytics takes 443ms 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 342ms 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 303ms 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.al-monitor.com takes 213ms 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
70% of www.al-monitor.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
67% of Hotjar'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.