https://www.jpmorgan.com/content/dam/logos-global/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.jpmorgan.com/content/dam/jpmorgan/imag... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
14images839 KB
0oversized-0 KB
13legacy format
3missing dimensionsCLS risk
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
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
7 fonts (942 KB)
PASS
7 fonts (942 KB)
Info::
i
7 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
7
942 KB total
Render-blocking
0
of 7
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
fa-sharp-regular-400.woff2woff2swap
Size370 KB
Load time40 ms
Start1.0 s
RiskFOUT — text flashes from fallback to web font
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
fa-solid-900.woff2woff2swap
Size359 KB
Load time59 ms
Start1.0 s
RiskFOUT — text flashes from fallback to web font
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
amplitude-medium.woff2woff2swap
Size24 KB
Load time40 ms
Start1.0 s
RiskFOUT — text flashes from fallback to web font
amplitude-light.woff2woff2swap
Size21 KB
Load time42 ms
Start1.0 s
RiskFOUT — text flashes from fallback to web font
Amplitude-Bold.woff2woff2swap
Size23 KB
Load time47 ms
Start1.0 s
RiskFOUT — text flashes from fallback to web font
amplitude-regular.woff2woff2swap
Size23 KB
Load time23 ms
Start1.4 s
RiskFOUT — text flashes from fallback to web font
fa-brands-400.woff2woff2swap
Size122 KB
Load time26 ms
Start1.4 s
RiskFOUT — text flashes from fallback to web font
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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)
Fixing the unchecked items could save ~426 KB and ~852 ms
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
1
dns-prefetch—
prefetch—
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
A
HTTP Caching
max-age=900 (15 minutes)
PASS
max-age=900 (15 minutes)
Info::
✓
Cache-Control header is set
Got: max-age=900
Info::
✓
Effective TTL: 15 minutes (max-age=900)
Info::
i
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
max-age=900
Directive
Value
Meaning
max-age
900
Cache for 15 minutes
Effective TTL: 900 seconds
Network Waterfall
52 requests over 2255ms
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-party2950ms · 441KB · $39/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.jpmorgan.com
www.jpmorgan.com
Other
801ms
167 KB
88%
$11/mo
Costly
www.jpmorgan.com
www.jpmorgan.com
Other
724ms
20 KB
—
$10/mo
Costly
Unattributable
Unattributable
Other
467ms
0 KB
—
$6/mo
Costly
assets.adobedtm.com
assets.adobedtm.com
Other
426ms
116 KB
35%
$6/mo
Costly
www.jpmorgan.com
www.jpmorgan.com
Other
242ms
65 KB
35%
$3/mo
Costly
www.jpmorgan.com
www.jpmorgan.com
Other
158ms
35 KB
—
$2/mo
Optional
www.jpmorgan.com
www.jpmorgan.com
Other
80ms
36 KB
—
$1/mo
Optional
rum.hlx.page
rum.hlx.page
Other
53ms
3 KB
—
$1/mo
Optional
www.jpmorgan.com
Other
Costly
Execution801ms
Transfer167 KB
Unused88%
Monthly Cost$11/mo
www.jpmorgan.com
Other
Costly
Execution724ms
Transfer20 KB
Monthly Cost$10/mo
Unattributable
Other
Costly
Execution467ms
Transfer0 KB
Monthly Cost$6/mo
assets.adobedtm.com
Other
Costly
Execution426ms
Transfer116 KB
Unused35%
Monthly Cost$6/mo
www.jpmorgan.com
Other
Costly
Execution242ms
Transfer65 KB
Unused35%
Monthly Cost$3/mo
www.jpmorgan.com
Other
Optional
Execution158ms
Transfer35 KB
Monthly Cost$2/mo
www.jpmorgan.com
Other
Optional
Execution80ms
Transfer36 KB
Monthly Cost$1/mo
rum.hlx.page
Other
Optional
Execution53ms
Transfer3 KB
Monthly Cost$1/mo
These scripts may cost more than they're worth
www.jpmorgan.com adds 801ms and costs ~$11/month
www.jpmorgan.com adds 724ms and costs ~$10/month
Unattributable adds 467ms and costs ~$6/month
assets.adobedtm.com adds 426ms and costs ~$6/month
www.jpmorgan.com adds 242ms and costs ~$3/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.jpmorgan.com takes 801ms 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
88% of www.jpmorgan.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.jpmorgan.com takes 724ms 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 467ms 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
assets.adobedtm.com takes 426ms 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.jpmorgan.com takes 242ms 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.