Per-script blocking time, transfer cost, and cache headers
INFO
94%of JavaScript execution is third-party
First-party Third-party5568ms · 2174KB · €60/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
ui-statics-cf.streamable.com
ui-statics-cf.streamable.com
Other
1731ms
695 KB
64%
€19/mo
Costly
Zendesk Widget
static.zdassets.com
Customer Support
814ms
261 KB
43%
€9/mo
Costly
Unattributable
Unattributable
Other
691ms
0 KB
—
€8/mo
Costly
ui-statics-cf.streamable.com
ui-statics-cf.streamable.com
Other
469ms
274 KB
87%
€5/mo
Costly
OneTrust
cdn.cookielaw.org
Consent
466ms
120 KB
51%
€5/mo
Essential
Stripe
js.stripe.com
Payment
401ms
225 KB
67%
€4/mo
Essential
www.gstatic.com
www.gstatic.com
Other
284ms
362 KB
67%
€3/mo
Costly
Zendesk Widget
static.zdassets.com
Customer Support
271ms
6 KB
—
€3/mo
Costly
Facebook Pixel
connect.facebook.net
Advertising
198ms
78 KB
69%
€2/mo
Optional
ui-statics-cf.streamable.com
ui-statics-cf.streamable.com
Other
67ms
33 KB
68%
€1/mo
Optional
accounts.google.com
accounts.google.com
Other
66ms
96 KB
83%
€1/mo
Optional
Zendesk Widget
static.zdassets.com
Customer Support
54ms
5 KB
—
€1/mo
Optional
ui-statics-cf.streamable.com
ui-statics-cf.streamable.com
Other
53ms
20 KB
—
€1/mo
Optional
ui-statics-cf.streamable.com
Other
Costly
Execution1731ms
Transfer695 KB
Unused64%
Monthly Cost€19/mo
Zendesk Widget
Customer Support
Costly
Execution814ms
Transfer261 KB
Unused43%
Monthly Cost€9/mo
Unattributable
Other
Costly
Execution691ms
Transfer0 KB
Monthly Cost€8/mo
ui-statics-cf.streamable.com
Other
Costly
Execution469ms
Transfer274 KB
Unused87%
Monthly Cost€5/mo
OneTrust
Consent
Essential
Execution466ms
Transfer120 KB
Unused51%
Monthly Cost€5/mo
Stripe
Payment
Essential
Execution401ms
Transfer225 KB
Unused67%
Monthly Cost€4/mo
www.gstatic.com
Other
Costly
Execution284ms
Transfer362 KB
Unused67%
Monthly Cost€3/mo
Zendesk Widget
Customer Support
Costly
Execution271ms
Transfer6 KB
Monthly Cost€3/mo
Facebook Pixel
Advertising
Optional
Execution198ms
Transfer78 KB
Unused69%
Monthly Cost€2/mo
ui-statics-cf.streamable.com
Other
Optional
Execution67ms
Transfer33 KB
Unused68%
Monthly Cost€1/mo
accounts.google.com
Other
Optional
Execution66ms
Transfer96 KB
Unused83%
Monthly Cost€1/mo
Zendesk Widget
Customer Support
Optional
Execution54ms
Transfer5 KB
Monthly Cost€1/mo
ui-statics-cf.streamable.com
Other
Optional
Execution53ms
Transfer20 KB
Monthly Cost€1/mo
These scripts may cost more than they're worth
ui-statics-cf.streamable.com adds 1731ms and costs ~€19/month
Zendesk Widget adds 814ms and costs ~€9/month
Unattributable adds 691ms and costs ~€8/month
ui-statics-cf.streamable.com adds 469ms and costs ~€5/month
www.gstatic.com adds 284ms and costs ~€3/month
Zendesk Widget adds 271ms and costs ~€3/month
94% 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
ui-statics-cf.streamable.com takes 1731ms 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
64% of ui-statics-cf.streamable.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
Zendesk Widget takes 814ms 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 691ms 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
ui-statics-cf.streamable.com takes 469ms 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
87% of ui-statics-cf.streamable.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
51% of OneTrust'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 Stripe'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.gstatic.com takes 284ms 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
67% of www.gstatic.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
Zendesk Widget takes 271ms 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
69% of Facebook Pixel'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
68% of ui-statics-cf.streamable.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
83% of accounts.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.