https://hips.hearstapps.com/hmg-prod/images/67eac4... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/bec3b1... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/5b9f7d... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/d4f7cd... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/739cb0... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/afbfd5... 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://hips.hearstapps.com/hmg-prod/images/ecc097... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/b298c7... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/7b0ed9... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/f38bb5... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.prevention.com/_assets/design-tokens/p... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/48e51c... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/56c781... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/dd4325... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/b4e92d... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/ac34e8... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/d140a8... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/1d713e... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/minera... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/ce3675... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://hips.hearstapps.com/hmg-prod/images/walnut... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
36images427 KB
0oversized-0 KB
5legacy format
22missing 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
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
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
6 fonts (107 KB)
PASS
6 fonts (107 KB)
Info::
i
6 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
6
107 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
poppins-v22-latin-regul...woff2swap
Size8 KB
Load time33 ms
Start69 ms
RiskFOUT — text flashes from fallback to web font
inter-v3-latin-700.8b80...woff2swap
Size18 KB
Load time11 ms
Start348 ms
RiskFOUT — text flashes from fallback to web font
poppins-v22-latin-700.3...woff2swap
Size8 KB
Load time32 ms
Start348 ms
RiskFOUT — text flashes from fallback to web font
lora-v35-latin-700.d459...woff2swap
Size21 KB
Load time43 ms
Start349 ms
RiskFOUT — text flashes from fallback to web font
inter-v3-latin-regular....woff2swap
Size17 KB
Load time47 ms
Start349 ms
RiskFOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a...woff2swap
Size34 KB
Load time26 ms
Start3.0 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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
✓
Page uses 2 resource hint(s)
Current Resource Hints
preconnect—
preload
1
dns-prefetch—
prefetch
1
2 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
145 requests over 3273ms
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-party11337ms · 998KB · $213/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.prevention.com
www.prevention.com
Other
1999ms
15 KB
—
$37/mo
Costly
Unattributable
Unattributable
Other
1737ms
0 KB
—
$33/mo
Costly
www.gstatic.com
www.gstatic.com
Other
1412ms
0 KB
49%
$26/mo
Costly
www.prevention.com
www.prevention.com
Other
788ms
83 KB
—
$15/mo
Costly
OneTrust
cdn.cookielaw.org
Consent
757ms
18 KB
—
$14/mo
Essential
www.prevention.com
www.prevention.com
Other
616ms
58 KB
77%
$12/mo
Costly
www.prevention.com
www.prevention.com
Other
576ms
14 KB
—
$11/mo
Costly
www.prevention.com
www.prevention.com
Other
429ms
7 KB
—
$8/mo
Costly
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
370ms
188 KB
76%
$7/mo
Costly
OneTrust
cdn.cookielaw.org
Consent
298ms
129 KB
57%
$6/mo
Essential
www.prevention.com
www.prevention.com
Other
278ms
108 KB
79%
$5/mo
Costly
c.amazon-adsystem.com
c.amazon-adsystem.com
Other
266ms
91 KB
63%
$5/mo
Costly
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
213ms
34 KB
—
$4/mo
Costly
www.prevention.com
www.prevention.com
Other
182ms
10 KB
—
$3/mo
Optional
www.prevention.com
www.prevention.com
Other
163ms
4 KB
—
$3/mo
Optional
www.prevention.com
www.prevention.com
Other
160ms
5 KB
—
$3/mo
Optional
www.prevention.com
www.prevention.com
Other
149ms
7 KB
—
$3/mo
Optional
www.prevention.com
www.prevention.com
Other
147ms
42 KB
—
$3/mo
Optional
www.prevention.com
www.prevention.com
Other
140ms
53 KB
89%
$3/mo
Optional
www.prevention.com
www.prevention.com
Other
121ms
2 KB
—
$2/mo
Optional
OneTrust
cdn.cookielaw.org
Consent
119ms
9 KB
—
$2/mo
Essential
nexus.ensighten.com
nexus.ensighten.com
Other
115ms
19 KB
—
$2/mo
Optional
www.prevention.com
www.prevention.com
Other
95ms
13 KB
—
$2/mo
Optional
www.prevention.com
www.prevention.com
Other
81ms
28 KB
—
$2/mo
Optional
assets.hearstapps.com
assets.hearstapps.com
Other
69ms
19 KB
—
$1/mo
Optional
www.prevention.com
www.prevention.com
Other
57ms
43 KB
49%
$1/mo
Optional
www.prevention.com
Other
Costly
Execution1999ms
Transfer15 KB
Monthly Cost$37/mo
Unattributable
Other
Costly
Execution1737ms
Transfer0 KB
Monthly Cost$33/mo
www.gstatic.com
Other
Costly
Execution1412ms
Transfer0 KB
Unused49%
Monthly Cost$26/mo
www.prevention.com
Other
Costly
Execution788ms
Transfer83 KB
Monthly Cost$15/mo
OneTrust
Consent
Essential
Execution757ms
Transfer18 KB
Monthly Cost$14/mo
www.prevention.com
Other
Costly
Execution616ms
Transfer58 KB
Unused77%
Monthly Cost$12/mo
www.prevention.com
Other
Costly
Execution576ms
Transfer14 KB
Monthly Cost$11/mo
www.prevention.com
Other
Costly
Execution429ms
Transfer7 KB
Monthly Cost$8/mo
securepubads.g.doubleclick.net
Other
Costly
Execution370ms
Transfer188 KB
Unused76%
Monthly Cost$7/mo
OneTrust
Consent
Essential
Execution298ms
Transfer129 KB
Unused57%
Monthly Cost$6/mo
www.prevention.com
Other
Costly
Execution278ms
Transfer108 KB
Unused79%
Monthly Cost$5/mo
c.amazon-adsystem.com
Other
Costly
Execution266ms
Transfer91 KB
Unused63%
Monthly Cost$5/mo
securepubads.g.doubleclick.net
Other
Costly
Execution213ms
Transfer34 KB
Monthly Cost$4/mo
www.prevention.com
Other
Optional
Execution182ms
Transfer10 KB
Monthly Cost$3/mo
www.prevention.com
Other
Optional
Execution163ms
Transfer4 KB
Monthly Cost$3/mo
www.prevention.com
Other
Optional
Execution160ms
Transfer5 KB
Monthly Cost$3/mo
www.prevention.com
Other
Optional
Execution149ms
Transfer7 KB
Monthly Cost$3/mo
www.prevention.com
Other
Optional
Execution147ms
Transfer42 KB
Monthly Cost$3/mo
www.prevention.com
Other
Optional
Execution140ms
Transfer53 KB
Unused89%
Monthly Cost$3/mo
www.prevention.com
Other
Optional
Execution121ms
Transfer2 KB
Monthly Cost$2/mo
OneTrust
Consent
Essential
Execution119ms
Transfer9 KB
Monthly Cost$2/mo
nexus.ensighten.com
Other
Optional
Execution115ms
Transfer19 KB
Monthly Cost$2/mo
www.prevention.com
Other
Optional
Execution95ms
Transfer13 KB
Monthly Cost$2/mo
www.prevention.com
Other
Optional
Execution81ms
Transfer28 KB
Monthly Cost$2/mo
assets.hearstapps.com
Other
Optional
Execution69ms
Transfer19 KB
Monthly Cost$1/mo
www.prevention.com
Other
Optional
Execution57ms
Transfer43 KB
Unused49%
Monthly Cost$1/mo
These scripts may cost more than they're worth
www.prevention.com adds 1999ms and costs ~$37/month
Unattributable adds 1737ms and costs ~$33/month
www.gstatic.com adds 1412ms and costs ~$26/month
www.prevention.com adds 788ms and costs ~$15/month
www.prevention.com adds 616ms and costs ~$12/month
www.prevention.com adds 576ms and costs ~$11/month
www.prevention.com adds 429ms and costs ~$8/month
securepubads.g.doubleclick.net adds 370ms and costs ~$7/month
www.prevention.com adds 278ms and costs ~$5/month
c.amazon-adsystem.com adds 266ms and costs ~$5/month
securepubads.g.doubleclick.net 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
www.prevention.com takes 1999ms 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 1737ms 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.gstatic.com takes 1412ms 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.prevention.com takes 788ms 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.prevention.com takes 616ms 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
77% of www.prevention.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
www.prevention.com takes 576ms 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.prevention.com takes 429ms 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
securepubads.g.doubleclick.net takes 370ms 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
57% 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
www.prevention.com takes 278ms 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
79% of www.prevention.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
c.amazon-adsystem.com takes 266ms 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
63% of c.amazon-adsystem.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
securepubads.g.doubleclick.net 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
89% of www.prevention.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.