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
69 images, 0 KB saveable
REVIEW
69 images, 0 KB saveable
Warning::
!
https://img02.symbaloo.com/R2ahbRaz9nSGtmyaZEEAvV0... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdn01.symbaloo.com/smarkDefinitionAssets/7... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdn01.symbaloo.com/smarkDefinitionAssets/s... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/Nx5W6HS49h7lCMGnTVzHD3d... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/DiRIx2IAQnkPpSRM-ntRcR3... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/eL2IGnEgiOSA8nAzzlVa8kB... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdn01.symbaloo.com/static/img/dialogs/shar... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/ITusq3qCI4YYZ0dWjk6Jl_a... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/ZqfkMC3XmiiC9dx7YgDTbRN... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/G6P5bwARtLThmVHhIYcyXe0... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/9Qbc6fTKF428VJvpoI4TuGg... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/KUrIYe48enZ2QwdKKz5UmFA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/LK1W66cpcG83cStJZA9gtcu... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdn01.symbaloo.com/static/img/widgets/goog... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/VyguayT6EcjB8JDZ6DP7arr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdn01.symbaloo.com/smarkDefinitionAssets/5... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/ZWeulxaDmJ2cYEKUTDt4F7P... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/XlTBQZCg0-hwUnBOuQrtN6-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/a7sZbDx0J5o9jr_L0A5Q6mL... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/kJqY7B0XfIJTrPb9XiBu2NA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdn01.symbaloo.com/smarkDefinitionAssets/7... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/uES2O_C7Dd9V9rwaYncIvxL... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdn01.symbaloo.com/smarkDefinitionAssets/8... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/GzEQSDIdb_u0TYDZb5FGrjS... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/tFaIZRYDRlhnxfds8NQ30HK... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/5P7U_SfroW7CELFwVv50Fd1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/6RKQyhuSrvxbIVcv_dBYQB8... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/fppaXakWERhHHpDZeQXjraB... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/KJq58DQ7HX9RRVv0rDAupl1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/RTlh3dS4L_1XKLGFIFbx-YP... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/c6-q6shxAufjy3TEAn4rC1c... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/5TN5EDqDxVYkMcqBHc5o8zF... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdn01.symbaloo.com/smarkDefinitionAssets/9... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/XRsU4iTpl26I9TI4pBGjiDn... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://img02.symbaloo.com/HP_fl81G2AmQkxD7C22xxMI... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdn01.symbaloo.com/smarkDefinitionAssets/2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
69images2.2 MB
0oversized-0 KB
66legacy format
36missing 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
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
2 fonts (59 KB)
PASS
2 fonts (59 KB)
Info::
i
2 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
2
59 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
JTUSjIg1_i6t8kCHKm459Wl...woff2swap
Size35 KB
Load time41 ms
Start1.4 s
RiskFOUT — text flashes from fallback to web font
materialdesignicons-sym...woff2swap
Size25 KB
Load time21 ms
Start2.0 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)
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
Network Waterfall
169 requests over 5204ms
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-party6988ms · 1844KB · €76/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
cdn01.symbaloo.com
cdn01.symbaloo.com
Other
2127ms
346 KB
34%
€23/mo
Costly
www.symbaloo.com
www.symbaloo.com
Other
1273ms
10 KB
—
€14/mo
Costly
Unattributable
Unattributable
Other
898ms
0 KB
—
€10/mo
Costly
cmp.inmobi.com
cmp.inmobi.com
Other
436ms
116 KB
49%
€5/mo
Costly
cmp.inmobi.com
cmp.inmobi.com
Other
425ms
125 KB
48%
€5/mo
Costly
cdn.intergient.com
cdn.intergient.com
Other
273ms
171 KB
78%
€3/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
217ms
142 KB
42%
€2/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
178ms
146 KB
41%
€2/mo
Optional
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
178ms
188 KB
70%
€2/mo
Optional
btloader.com
btloader.com
Other
178ms
50 KB
—
€2/mo
Optional
cdn.intergient.com
cdn.intergient.com
Other
169ms
220 KB
86%
€2/mo
Optional
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
165ms
70 KB
53%
€2/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
137ms
125 KB
49%
€1/mo
Optional
cdn01.symbaloo.com
cdn01.symbaloo.com
Other
124ms
29 KB
—
€1/mo
Optional
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
82ms
68 KB
—
€1/mo
Optional
cmp.symbaloo.com
cmp.symbaloo.com
Other
69ms
3 KB
—
€1/mo
Optional
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
59ms
34 KB
—
€1/mo
Optional
cdn01.symbaloo.com
Other
Costly
Execution2127ms
Transfer346 KB
Unused34%
Monthly Cost€23/mo
www.symbaloo.com
Other
Costly
Execution1273ms
Transfer10 KB
Monthly Cost€14/mo
Unattributable
Other
Costly
Execution898ms
Transfer0 KB
Monthly Cost€10/mo
cmp.inmobi.com
Other
Costly
Execution436ms
Transfer116 KB
Unused49%
Monthly Cost€5/mo
cmp.inmobi.com
Other
Costly
Execution425ms
Transfer125 KB
Unused48%
Monthly Cost€5/mo
cdn.intergient.com
Other
Costly
Execution273ms
Transfer171 KB
Unused78%
Monthly Cost€3/mo
Google Tag Manager
Tag Manager
Costly
Execution217ms
Transfer142 KB
Unused42%
Monthly Cost€2/mo
Google Tag Manager
Tag Manager
Optional
Execution178ms
Transfer146 KB
Unused41%
Monthly Cost€2/mo
securepubads.g.doubleclick.net
Other
Optional
Execution178ms
Transfer188 KB
Unused70%
Monthly Cost€2/mo
btloader.com
Other
Optional
Execution178ms
Transfer50 KB
Monthly Cost€2/mo
cdn.intergient.com
Other
Optional
Execution169ms
Transfer220 KB
Unused86%
Monthly Cost€2/mo
fundingchoicesmessages.google.com
Other
Optional
Execution165ms
Transfer70 KB
Unused53%
Monthly Cost€2/mo
Google Tag Manager
Tag Manager
Optional
Execution137ms
Transfer125 KB
Unused49%
Monthly Cost€1/mo
cdn01.symbaloo.com
Other
Optional
Execution124ms
Transfer29 KB
Monthly Cost€1/mo
fundingchoicesmessages.google.com
Other
Optional
Execution82ms
Transfer68 KB
Monthly Cost€1/mo
cmp.symbaloo.com
Other
Optional
Execution69ms
Transfer3 KB
Monthly Cost€1/mo
securepubads.g.doubleclick.net
Other
Optional
Execution59ms
Transfer34 KB
Monthly Cost€1/mo
These scripts may cost more than they're worth
cdn01.symbaloo.com adds 2127ms and costs ~€23/month
www.symbaloo.com adds 1273ms and costs ~€14/month
Unattributable adds 898ms and costs ~€10/month
cmp.inmobi.com adds 436ms and costs ~€5/month
cmp.inmobi.com adds 425ms and costs ~€5/month
cdn.intergient.com adds 273ms and costs ~€3/month
Google Tag Manager adds 217ms and costs ~€2/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
cdn01.symbaloo.com takes 2127ms 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.symbaloo.com takes 1273ms 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 898ms 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
cmp.inmobi.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
cmp.inmobi.com takes 425ms 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.intergient.com takes 273ms 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 cdn.intergient.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 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
70% of securepubads.g.doubleclick.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
86% of cdn.intergient.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
53% of fundingchoicesmessages.google.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.
375 ms
1.5 s
1.9 s
2.6 s