JavaScript is 716 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 716 KB
Info::
i
52 HTTP requests
Info::
i
Estimated 0.20 g CO2 per page load
959 KBtransferred
52 requests
0.20 g CO2 per page load
JavaScript715.8 KiB75%
HTML129.2 KiB13%
Images82.8 KiB9%
Other16.4 KiB2%
CSS11.3 KiB1%
Other1.6 KiB0%
Other863 B0%
Other785 B0%
Other0 B0%
02.4 MB4.9 MB
Under budget
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Why this matters
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
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
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
✓
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall
52 requests over 1871ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
91%of JavaScript execution is third-party
First-party Third-party1826ms · 684KB · $24/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
Google Tag Manager
www.googletagmanager.com
Tag Manager
290ms
152 KB
40%
$4/mo
Costly
st.prntscr.com
st.prntscr.com
Other
249ms
33 KB
—
$3/mo
Costly
Unattributable
Unattributable
Other
240ms
0 KB
—
$3/mo
Costly
Twitter/X Embed
platform.twitter.com
Social
216ms
27 KB
—
$3/mo
Costly
pagead2.googlesyndication.com
pagead2.googlesyndication.com
Other
207ms
177 KB
84%
$3/mo
Costly
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
189ms
70 KB
53%
$3/mo
Optional
pagead2.googlesyndication.com
pagead2.googlesyndication.com
Other
158ms
54 KB
49%
$2/mo
Optional
Facebook Pixel
connect.facebook.net
Advertising
152ms
83 KB
62%
$2/mo
Optional
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
74ms
67 KB
—
$1/mo
Optional
Google Analytics
www.google-analytics.com
Analytics
50ms
21 KB
—
$1/mo
Optional
Google Tag Manager
Tag Manager
Costly
Execution290ms
Transfer152 KB
Unused40%
Monthly Cost$4/mo
st.prntscr.com
Other
Costly
Execution249ms
Transfer33 KB
Monthly Cost$3/mo
Unattributable
Other
Costly
Execution240ms
Transfer0 KB
Monthly Cost$3/mo
Twitter/X Embed
Social
Costly
Execution216ms
Transfer27 KB
Monthly Cost$3/mo
pagead2.googlesyndication.com
Other
Costly
Execution207ms
Transfer177 KB
Unused84%
Monthly Cost$3/mo
fundingchoicesmessages.google.com
Other
Optional
Execution189ms
Transfer70 KB
Unused53%
Monthly Cost$3/mo
pagead2.googlesyndication.com
Other
Optional
Execution158ms
Transfer54 KB
Unused49%
Monthly Cost$2/mo
Facebook Pixel
Advertising
Optional
Execution152ms
Transfer83 KB
Unused62%
Monthly Cost$2/mo
fundingchoicesmessages.google.com
Other
Optional
Execution74ms
Transfer67 KB
Monthly Cost$1/mo
Google Analytics
Analytics
Optional
Execution50ms
Transfer21 KB
Monthly Cost$1/mo
These scripts may cost more than they're worth
Google Tag Manager adds 290ms and costs ~$4/month
st.prntscr.com adds 249ms and costs ~$3/month
Unattributable adds 240ms and costs ~$3/month
Twitter/X Embed adds 216ms and costs ~$3/month
pagead2.googlesyndication.com adds 207ms and costs ~$3/month
91% 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
Google Tag Manager takes 290ms 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
st.prntscr.com takes 249ms 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 240ms 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
Twitter/X Embed takes 216ms 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
pagead2.googlesyndication.com takes 207ms 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
84% of pagead2.googlesyndication.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.
Source: web.dev
62% 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.