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Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
76
GRADE
C
FIX
4
REVIEW
3
PASS
7
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
27
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
89
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

5.32 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

19.39 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

3.73 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

10.13 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

19.55 s

Page Load Progression

448 ms
896 ms
1.3 s
1.8 s
2.2 s
2.7 s
3.1 s
3.6 s
Checks
16
7 PASS 3 REVIEW 4 FIX
D
Page Weight Budget
Action
2.5 MB transferred, 88 requests
FIX
2.5 MB transferred, 88 requests
Warning::
Page weighs 10.3 MB (2.5 MB transferred)
Warning::
JavaScript is 2.2 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 2.2 MB
Info::
88 HTTP requests
Info::
Estimated 0.53 g CO2 per page load
2.5 MB / 2.4 MB budget
2.5 MB transferred
88 requests
0.53 g CO2 per page load
JavaScript 2.2 MiB 86%
Fonts 149.1 KiB 6%
CSS 102.9 KiB 4%
Images 39.9 KiB 2%
HTML 29.1 KiB 1%
Other 15.0 KiB 1%
Other 12.5 KiB 0%
Other 2.8 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over 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

F
JS Execution Cost
Action
10564ms total JS execution
FIX
10564ms total JS execution
Warning::
https://www.fedex.com/global/choose-location.html: 2616ms CPU time
Warning::
https://www.fedex.com/E80caW4ngR02/FHpJqZ/kxMI4c/1...: 1391ms CPU time
Warning::
https://www.fedex.com/assets/79a26a5472ae5cd0a0e5f...: 1300ms CPU time
Warning::
Unattributable: 1001ms CPU time
Warning::
https://assets.adobedtm.com/686b8f0c4520/a46df9c77...: 634ms CPU time
Info::
Third-party scripts: 3597ms (34% of total)

Main Thread Breakdown

Script Evaluation 65% Script Parsing & Compilation 16% Other 11% Style & Layout 5%
ScriptTotalScriptingParse/CompileParty
https://www.fedex.com/global/choose-location.html2616ms2181ms8ms1st
https://www.fedex.com/E80caW4ngR02/FHpJqZ/kxMI4c/1QDuGc7rhO1mkhz5J9/WHQ5MQ/DzNT/PH5iWhsB1391ms983ms89ms1st
https://www.fedex.com/assets/79a26a5472ae5cd0a0e5f981ba0cc5db9001192124f1300ms1111ms53ms1st
Unattributable1001ms94ms0ms3rd
https://assets.adobedtm.com/686b8f0c4520/a46df9c77975/launch-f96010731c97-development.min.js634ms119ms513ms3rd
https://www.fedex.com/etc.clientlibs/fedex-core/clientlibs/clientlib-dependencies.min.f9eae93dbda59781f90cbc78ffd930b7.js474ms259ms87ms1st
https://www.fedex.com/gdl/next/gdl-next-fedex.js426ms337ms89ms1st
https://assets.adobedtm.com/launch-EN3932511771fb4e5e9dd852ae89372b59.min.js416ms324ms75ms3rd
https://maps.googleapis.com/maps/api/js?key=testkey&libraries=places&callback=FDX.INPUT.gmInitAutoComplete336ms214ms118ms3rd
https://www.fedex.com/etc.clientlibs/fedex-core/clientlibs/clientlib-base.min.6f845103576f960f0af0a8dcc01f88c9.js332ms66ms254ms1st

Showing top 10 of 23 scripts

F
JS Bundles
Action
47 scripts, 907 KB unused
FIX
47 scripts, 907 KB unused
Warning::
https://www.fedex.com/etc.clientlibs/fedex-core/cl...: 218 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.fedex.com/etc.clientlibs/fedex-core/cl...: unminified — 128 KB could be saved
Warning::
https://www.fedex.com/etc.clientlibs/fedex-core/cl...: 118 KB unused (74%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://assets.adobedtm.com/686b8f0c4520/a46df9c77...: 112 KB unused (19%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.fedex.com/gdl/next/gdl-next-fedex.js: 104 KB unused (58%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://maps.googleapis.com/maps/api/js?key=testke...: 99 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 907 KB
907 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.fedex.com/etc.clientlibs/fedex-core/clientlibs/clientlib-base.min.6f845103576f960f0af0a8dcc01f88c9.js291 KB218 KB (75%)✗1st
https://www.fedex.com/etc.clientlibs/fedex-core/clientlibs/clientlib-dependencies.min.f9eae93dbda59781f90cbc78ffd930b7.js161 KB118 KB (74%)✓1st
https://assets.adobedtm.com/686b8f0c4520/a46df9c77975/launch-f96010731c97-development.min.js591 KB112 KB (19%)✓3rd
https://www.fedex.com/gdl/next/gdl-next-fedex.js179 KB104 KB (58%)✓1st
https://maps.googleapis.com/maps/api/js?key=testkey&libraries=places&callback=FDX.INPUT.gmInitAutoComplete178 KB99 KB (56%)✓3rd
https://assets.adobedtm.com/launch-EN3932511771fb4e5e9dd852ae89372b59.min.js117 KB70 KB (60%)✓3rd
https://web.cmp.usercentrics.eu/ui/v/3.111.0/WebSdk.lib.f9924d53.js73 KB43 KB (59%)✗3rd
https://www.fedex.com/E80caW4ngR02/FHpJqZ/kxMI4c/1QDuGc7rhO1mkhz5J9/WHQ5MQ/DzNT/PH5iWhsB167 KB33 KB (20%)✓1st
https://www.fedex.com/etc.clientlibs/clientlibs/granite/jquery.min.cee8557e8779d371fe722bbcdd3b3eb7.js35 KB24 KB (68%)✓1st
https://siteintercept.qualtrics.com/dxjsmodule/12.45e656039b3fa23613e1.chunk.js?Q_CLIENTVERSION=2.45.0&Q_CLIENTTYPE=web&Q_BRANDID=www.fedex.com36 KB22 KB (62%)✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
Info::
ETag present — enables conditional (304) responses

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Third-Party Impact
50% third-party, 0 ms blocking
REVIEW
50% third-party, 0 ms blocking
Info::
Third-party code accounts for 50% of page weight (1.3 MiB of 2.5 MiB)
Info::
Third-party blocking time is low (0 ms)
50%
50%
First-party Third-party
B
Image Optimization
16 images, 0 KB saveable
REVIEW
16 images, 0 KB saveable
Info::
All images are well-optimized
16 images 40 KB
0 oversized -0 KB
12 legacy format
0 missing dimensions CLS risk
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
4 fonts (149 KB)
PASS
4 fonts (149 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

149 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s FCP 5.3 s LCP 19.4 shttps://www.fedex.com/etc/clientlibs/fedex/common/css/resources/fonts/FedExSans_W-Regular.woff2FedExSans_W-Regular.woff2 https://www.fedex.com/etc/clientlibs/fedex/common/css/resources/fonts/FedExSans_W-Regular.woff2 — 36.8 KiB — 0 ms — font-display: swaphttps://www.fedex.com/etc/clientlibs/fedex/common/css/resources/fonts/FedExSans_W-Light.woff2FedExSans_W-Light.woff2 https://www.fedex.com/etc/clientlibs/fedex/common/css/resources/fonts/FedExSans_W-Light.woff2 — 37.0 KiB — 0 ms — font-display: swaphttps://www.fedex.com/etc/clientlibs/fedex/common/css/resources/fonts/FedExSans_W-Bold.woff2FedExSans_W-Bold.woff2 https://www.fedex.com/etc/clientlibs/fedex/common/css/resources/fonts/FedExSans_W-Bold.woff2 — 38.3 KiB — 0 ms — font-display: swaphttps://www.fedex.com/etc/clientlibs/fedex/common/css/resources/fonts/FedExSans_W-Medium.woff2FedExSans_W-Medium.woff2 https://www.fedex.com/etc/clientlibs/fedex/common/css/resources/fonts/FedExSans_W-Medium.woff2 — 37.1 KiB — 0 ms — font-display: swap
FedExSans_W-Regular.woff2 woff2 swap
Size 37 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
FedExSans_W-Light.woff2 woff2 swap
Size 37 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
FedExSans_W-Bold.woff2 woff2 swap
Size 38 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
FedExSans_W-Medium.woff2 woff2 swap
Size 37 KB
Load time 0 ms
Start 0 ms
Risk FOUT — 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
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
Network Waterfall
88 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
34% of JavaScript execution is third-party
First-party Third-party 3597ms · 1174KB · $48/mo
Unattributable
Other
Costly
Execution 1001ms
Transfer 0 KB
Monthly Cost $13/mo
assets.adobedtm.com
Other
Costly
Execution 634ms
Transfer 591 KB
Unused 19%
Monthly Cost $8/mo
assets.adobedtm.com
Other
Costly
Execution 416ms
Transfer 117 KB
Unused 60%
Monthly Cost $6/mo
maps.googleapis.com
Other
Costly
Execution 336ms
Transfer 178 KB
Unused 56%
Monthly Cost $4/mo
web.cmp.usercentrics.eu
Other
Costly
Execution 223ms
Transfer 73 KB
Unused 59%
Monthly Cost $3/mo
siteintercept.qualtrics.com
Other
Costly
Execution 203ms
Transfer 36 KB
Unused 62%
Monthly Cost $3/mo
assets.adobedtm.com
Other
Optional
Execution 168ms
Transfer 36 KB
Unused 60%
Monthly Cost $2/mo
web.cmp.usercentrics.eu
Other
Optional
Execution 156ms
Transfer 35 KB
Unused 57%
Monthly Cost $2/mo
p11.techlab-cdn.com
Other
Optional
Execution 103ms
Transfer 18 KB
Monthly Cost $1/mo
web.cmp.usercentrics.eu
Other
Optional
Execution 85ms
Transfer 20 KB
Monthly Cost $1/mo
web.cmp.usercentrics.eu
Other
Optional
Execution 80ms
Transfer 1 KB
Monthly Cost $1/mo
p11.techlab-cdn.com
Other
Optional
Execution 66ms
Transfer 33 KB
Monthly Cost $1/mo
web.cmp.usercentrics.eu
Other
Optional
Execution 63ms
Transfer 21 KB
Monthly Cost $1/mo
web.cmp.usercentrics.eu
Other
Optional
Execution 63ms
Transfer 13 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 1001ms and costs ~$13/month
  • assets.adobedtm.com adds 634ms and costs ~$8/month
  • assets.adobedtm.com adds 416ms and costs ~$6/month
  • maps.googleapis.com adds 336ms and costs ~$4/month
  • web.cmp.usercentrics.eu adds 223ms and costs ~$3/month
  • siteintercept.qualtrics.com adds 203ms and costs ~$3/month

Unattributable takes 1001ms 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 634ms 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 416ms 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

60% of assets.adobedtm.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

maps.googleapis.com takes 336ms 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

56% of maps.googleapis.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

web.cmp.usercentrics.eu takes 223ms 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

59% of web.cmp.usercentrics.eu'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

siteintercept.qualtrics.com takes 203ms 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

62% of siteintercept.qualtrics.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

60% of assets.adobedtm.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

57% of web.cmp.usercentrics.eu'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

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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