Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
C
Image Optimization
Action
29 images, 0 KB saveable
REVIEW
29 images, 0 KB saveable
Warning::
!
https://www.medtronic.com/content/dam/medtronic-wi... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.medtronic.com/content/dam/medtronic-wi... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.medtronic.com/content/dam/medtronic-wi... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.medtronic.com/content/dam/medtronic-co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.medtronic.com/content/dam/medtronic-co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.medtronic.com/content/dam/medtronic-wi... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.medtronic.com/content/dam/medtronic-wi... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.medtronic.com/content/dam/medtronic-co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.medtronic.com/content/dam/medtronic-wi... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.medtronic.com/content/dam/medtronic-co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
29images33.1 MB
0oversized-0 KB
18legacy format
10missing 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
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
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 (157 KB)
PASS
6 fonts (157 KB)
Info::
i
6 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
6
157 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
AvenirNextWorld-Regular...woffswap
Size17 KB
Load time52 ms
Start2.0 s
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
icomoon.woffwoffswap
Size22 KB
Load time55 ms
Start2.0 s
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
AvenirNextWorld-Demi.woffwoffswap
Size17 KB
Load time58 ms
Start2.0 s
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
AvenirNextWorld-Bold.woffwoffswap
Size17 KB
Load time62 ms
Start2.0 s
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
AvenirNextWorld-Thin.woffwoffswap
Size17 KB
Load time54 ms
Start2.1 s
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
Effra_W_Md.woffwoffswap
Size66 KB
Load time44 ms
Start2.1 s
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
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 ~47 KB and ~94 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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
✓
Page uses 2 resource hint(s)
Current Resource Hints
preconnect
1
preload
1
dns-prefetch—
prefetch—
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
146 requests over 6230ms
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-party9881ms · 1339KB · $57/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.medtronic.com
www.medtronic.com
Other
3163ms
731 KB
76%
$18/mo
Costly
Unattributable
Unattributable
Other
2533ms
0 KB
—
$14/mo
Costly
www.medtronic.com
www.medtronic.com
Other
1423ms
64 KB
—
$8/mo
Costly
s2.go-mpulse.net
s2.go-mpulse.net
Other
612ms
57 KB
45%
$4/mo
Costly
assets.adobedtm.com
assets.adobedtm.com
Other
588ms
162 KB
31%
$3/mo
Costly
OneTrust
cdn.cookielaw.org
Consent
467ms
124 KB
51%
$3/mo
Essential
static.cloud.coveo.com
static.cloud.coveo.com
Other
316ms
8 KB
—
$2/mo
Costly
Hotjar
script.hotjar.com
Session Replay
205ms
57 KB
67%
$1/mo
Costly
tag.demandbase.com
tag.demandbase.com
Other
121ms
56 KB
64%
$1/mo
Optional
www.medtronic.com
www.medtronic.com
Other
114ms
1 KB
—
$1/mo
Optional
tag.demandbase.com
tag.demandbase.com
Other
112ms
19 KB
—
$1/mo
Optional
www.medtronic.com
www.medtronic.com
Other
58ms
27 KB
—
$0/mo
Optional
www.medtronic.com
www.medtronic.com
Other
58ms
23 KB
—
$0/mo
Optional
assets.adobedtm.com
assets.adobedtm.com
Other
57ms
1 KB
—
$0/mo
Optional
OneTrust
cdn.cookielaw.org
Consent
52ms
9 KB
—
$0/mo
Essential
www.medtronic.com
Other
Costly
Execution3163ms
Transfer731 KB
Unused76%
Monthly Cost$18/mo
Unattributable
Other
Costly
Execution2533ms
Transfer0 KB
Monthly Cost$14/mo
www.medtronic.com
Other
Costly
Execution1423ms
Transfer64 KB
Monthly Cost$8/mo
s2.go-mpulse.net
Other
Costly
Execution612ms
Transfer57 KB
Unused45%
Monthly Cost$4/mo
assets.adobedtm.com
Other
Costly
Execution588ms
Transfer162 KB
Unused31%
Monthly Cost$3/mo
OneTrust
Consent
Essential
Execution467ms
Transfer124 KB
Unused51%
Monthly Cost$3/mo
static.cloud.coveo.com
Other
Costly
Execution316ms
Transfer8 KB
Monthly Cost$2/mo
Hotjar
Session Replay
Costly
Execution205ms
Transfer57 KB
Unused67%
Monthly Cost$1/mo
tag.demandbase.com
Other
Optional
Execution121ms
Transfer56 KB
Unused64%
Monthly Cost$1/mo
www.medtronic.com
Other
Optional
Execution114ms
Transfer1 KB
Monthly Cost$1/mo
tag.demandbase.com
Other
Optional
Execution112ms
Transfer19 KB
Monthly Cost$1/mo
www.medtronic.com
Other
Optional
Execution58ms
Transfer27 KB
Monthly Cost$0/mo
www.medtronic.com
Other
Optional
Execution58ms
Transfer23 KB
Monthly Cost$0/mo
assets.adobedtm.com
Other
Optional
Execution57ms
Transfer1 KB
Monthly Cost$0/mo
OneTrust
Consent
Essential
Execution52ms
Transfer9 KB
Monthly Cost$0/mo
These scripts may cost more than they're worth
www.medtronic.com adds 3163ms and costs ~$18/month
Unattributable adds 2533ms and costs ~$14/month
www.medtronic.com adds 1423ms and costs ~$8/month
s2.go-mpulse.net adds 612ms and costs ~$4/month
assets.adobedtm.com adds 588ms and costs ~$3/month
static.cloud.coveo.com adds 316ms and costs ~$2/month
Hotjar adds 205ms and costs ~$1/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.medtronic.com takes 3163ms 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 www.medtronic.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
Unattributable takes 2533ms 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.medtronic.com takes 1423ms 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
s2.go-mpulse.net takes 612ms 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 588ms 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
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
static.cloud.coveo.com takes 316ms 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
Hotjar takes 205ms 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 Hotjar'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
64% of tag.demandbase.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.