JavaScript is 1007 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1007 KB
Warning::
!
116 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
i
Estimated 0.42 g CO2 per page load
2.0 MBtransferred
116 requests
0.42 g CO2 per page load
JavaScript1007.3 KiB50%
Images600.0 KiB29%
Other138.0 KiB7%
HTML98.1 KiB5%
CSS75.7 KiB4%
Other64.9 KiB3%
Fonts50.1 KiB2%
Other0 B0%
02.4 MB4.9 MB
Approaching limit
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
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Why this matters
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
B
Image Optimization
28 images, 0 KB saveable
REVIEW
28 images, 0 KB saveable
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/40a540... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/f3cbc8... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.elledecor.com/_assets/design-tokens/el... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/a95457... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/c1e5bb... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/img-33... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/d02559... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/d6b5e9... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/6a3b10... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/ac6359... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.elledecor.com/_assets/design-tokens/el... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/aa4f59... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/629691... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/2687ed... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
28images600 KB
0oversized-0 KB
3legacy format
15missing 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
Performance issues directly impact user engagement and conversion rates.
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
B
HTTP Caching
max-age=0, must-revalidate, private
REVIEW
max-age=0, must-revalidate, private
Info::
✓
Cache-Control header is set
Got: max-age=0, must-revalidate, private
Info::
i
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
max-age=0, must-revalidate, private
Directive
Value
Meaning
max-age
0
Cache for 0 seconds
must-revalidate
—
Must recheck with server after expiry
private
—
Only browser cache, not CDN/proxy
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
3 fonts (50 KB)
PASS
3 fonts (50 KB)
Info::
i
3 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
3
50 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
inter-v3-latin-700.8b80...woff2swap
Size18 KB
Load time7 ms
Start248 ms
RiskFOUT — text flashes from fallback to web font
source-sans-3-v18-latin...woff2swap
Size16 KB
Load time12 ms
Start249 ms
RiskFOUT — text flashes from fallback to web font
source-sans-3-v18-latin...woff2swap
Size16 KB
Load time13 ms
Start249 ms
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
1 hints, 0 missing preconnects
PASS
1 hints, 0 missing preconnects
Info::
✓
Page uses 1 resource hint(s)
Current Resource Hints
preconnect—
preload—
dns-prefetch—
prefetch
1
1 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
Network Waterfall
116 requests over 2018ms
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-party3847ms · 712KB · $72/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.elledecor.com
www.elledecor.com
Other
740ms
15 KB
—
$14/mo
Costly
Unattributable
Unattributable
Other
708ms
0 KB
—
$13/mo
Costly
www.elledecor.com
www.elledecor.com
Other
674ms
14 KB
—
$13/mo
Costly
www.elledecor.com
www.elledecor.com
Other
526ms
98 KB
—
$10/mo
Costly
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
177ms
188 KB
76%
$3/mo
Optional
www.elledecor.com
www.elledecor.com
Other
167ms
7 KB
—
$3/mo
Optional
www.elledecor.com
www.elledecor.com
Other
118ms
108 KB
79%
$2/mo
Optional
www.elledecor.com
www.elledecor.com
Other
102ms
7 KB
—
$2/mo
Optional
www.elledecor.com
www.elledecor.com
Other
90ms
10 KB
—
$2/mo
Optional
www.elledecor.com
www.elledecor.com
Other
86ms
43 KB
49%
$2/mo
Optional
www.elledecor.com
www.elledecor.com
Other
74ms
58 KB
82%
$1/mo
Optional
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
69ms
34 KB
—
$1/mo
Optional
www.elledecor.com
www.elledecor.com
Other
69ms
4 KB
—
$1/mo
Optional
www.elledecor.com
www.elledecor.com
Other
67ms
42 KB
56%
$1/mo
Optional
www.elledecor.com
www.elledecor.com
Other
66ms
53 KB
91%
$1/mo
Optional
www.elledecor.com
www.elledecor.com
Other
60ms
13 KB
—
$1/mo
Optional
nexus.ensighten.com
nexus.ensighten.com
Other
53ms
19 KB
—
$1/mo
Optional
www.elledecor.com
Other
Costly
Execution740ms
Transfer15 KB
Monthly Cost$14/mo
Unattributable
Other
Costly
Execution708ms
Transfer0 KB
Monthly Cost$13/mo
www.elledecor.com
Other
Costly
Execution674ms
Transfer14 KB
Monthly Cost$13/mo
www.elledecor.com
Other
Costly
Execution526ms
Transfer98 KB
Monthly Cost$10/mo
securepubads.g.doubleclick.net
Other
Optional
Execution177ms
Transfer188 KB
Unused76%
Monthly Cost$3/mo
www.elledecor.com
Other
Optional
Execution167ms
Transfer7 KB
Monthly Cost$3/mo
www.elledecor.com
Other
Optional
Execution118ms
Transfer108 KB
Unused79%
Monthly Cost$2/mo
www.elledecor.com
Other
Optional
Execution102ms
Transfer7 KB
Monthly Cost$2/mo
www.elledecor.com
Other
Optional
Execution90ms
Transfer10 KB
Monthly Cost$2/mo
www.elledecor.com
Other
Optional
Execution86ms
Transfer43 KB
Unused49%
Monthly Cost$2/mo
www.elledecor.com
Other
Optional
Execution74ms
Transfer58 KB
Unused82%
Monthly Cost$1/mo
securepubads.g.doubleclick.net
Other
Optional
Execution69ms
Transfer34 KB
Monthly Cost$1/mo
www.elledecor.com
Other
Optional
Execution69ms
Transfer4 KB
Monthly Cost$1/mo
www.elledecor.com
Other
Optional
Execution67ms
Transfer42 KB
Unused56%
Monthly Cost$1/mo
www.elledecor.com
Other
Optional
Execution66ms
Transfer53 KB
Unused91%
Monthly Cost$1/mo
www.elledecor.com
Other
Optional
Execution60ms
Transfer13 KB
Monthly Cost$1/mo
nexus.ensighten.com
Other
Optional
Execution53ms
Transfer19 KB
Monthly Cost$1/mo
These scripts may cost more than they're worth
www.elledecor.com adds 740ms and costs ~$14/month
Unattributable adds 708ms and costs ~$13/month
www.elledecor.com adds 674ms and costs ~$13/month
www.elledecor.com adds 526ms and costs ~$10/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.elledecor.com takes 740ms 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 708ms 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.elledecor.com takes 674ms 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.elledecor.com takes 526ms 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
76% 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
79% of www.elledecor.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
82% of www.elledecor.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
56% of www.elledecor.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
91% of www.elledecor.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.