Performance
· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
7.38 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
20.20 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.32 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.091
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
10.33 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.
33.10 s
Page Load Progression
FPage Weight BudgetAction38.7 MB transferred, 143 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
Source: web.dev
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction9563ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.zebra.com/br/pt.html | 2317ms | 73ms | 9ms | 3rd |
| Unattributable | 1362ms | 87ms | 0ms | 3rd |
| https://www.zebra.com/etc.clientlibs/zebra-web/clientlibs/clientlib-rebrand.lc-2bbe809cd3e2a8aa475561783ae28cd9-lc.min.js | 892ms | 458ms | 309ms | 3rd |
| https://www.zebra.com/etc.clientlibs/zebra-web/clientlibs/clientlib-dependencies.lc-3367a958b7a0195880bd0c555080d3b9-lc.min.js | 884ms | 570ms | 67ms | 3rd |
| https://use.typekit.net/lmt3sxe.js | 433ms | 411ms | 18ms | 3rd |
| https://static.cloud.coveo.com/searchui/v2.10121/1/js/CoveoJsSearch.Lazy.min.js | 351ms | 243ms | 107ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6HBKMX7V92&l=gtagDataLayer&cx=c>m=4e64k1h2 | 350ms | 273ms | 74ms | 3rd |
| https://cdn.evgnet.com/beacon/zebra/engage/scripts/evergage.min.js | 339ms | 300ms | 29ms | 3rd |
| https://app.gatedcontent.com/scripts/67770621/app.js | 321ms | 219ms | 93ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/6.37.0/otBannerSdk.js | 298ms | 188ms | 44ms | 3rd |
Showing top 10 of 22 scripts
FJS BundlesAction37 scripts, 1.0 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.zebra.com/etc.clientlibs/zebra-web/clientlibs/clientlib-rebrand.lc-2bbe809cd3e2a8aa475561783ae28cd9-lc.min.js | 557 KB | 461 KB (84%) | ✓ | 3rd |
| https://static.cloud.coveo.com/searchui/v2.10121/1/js/CoveoJsSearch.Lazy.min.js | 211 KB | 101 KB (50%) | ✓ | 3rd |
| https://www.zebra.com/etc.clientlibs/zebra-web/clientlibs/clientlib-dependencies.lc-3367a958b7a0195880bd0c555080d3b9-lc.min.js | 124 KB | 96 KB (77%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6HBKMX7V92&l=gtagDataLayer&cx=c>m=4e64k1h2 | 176 KB | 78 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-8221410&l=gtagDataLayer&cx=c>m=4e64k1h2 | 129 KB | 61 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-15056454&l=gtagDataLayer | 130 KB | 54 KB (42%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/6.37.0/otBannerSdk.js | 87 KB | 45 KB (52%) | ✓ | 3rd |
| https://app.gatedcontent.com/scripts/67770621/app.js | 64 KB | 44 KB (68%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 43 KB (45%) | ✓ | 3rd |
| https://assets.adobedtm.com/f4072c74f4f2/b25370a5d269/launch-168524f53052.min.js | 74 KB | 22 KB (30%) | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction143 resources · 38.7 MB · 1.0 MB savings availableFIX
~1.0 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 143 resources | 38.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction31 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
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.
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.
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.
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.
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.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading12 fonts (902 KB)PASS
Web fonts
12
902 KB total
Render-blocking
0
of 12
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- 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 ~461 KB and ~922 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall143 requests over 3690msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.zebra.com www.zebra.com | Other | 2317ms | 37 KB | — | $13/mo | Costly |
Unattributable Unattributable | Other | 1362ms | 0 KB | — | $8/mo | Costly |
www.zebra.com www.zebra.com | Other | 892ms | 557 KB | 84% | $5/mo | Costly |
www.zebra.com www.zebra.com | Other | 884ms | 124 KB | 77% | $5/mo | Costly |
Adobe Fonts use.typekit.net | Font | 433ms | 95 KB | — | $2/mo | Costly |
static.cloud.coveo.com static.cloud.coveo.com | Other | 351ms | 211 KB | 50% | $2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 350ms | 176 KB | 44% | $2/mo | Costly |
cdn.evgnet.com cdn.evgnet.com | Other | 339ms | 53 KB | — | $2/mo | Costly |
app.gatedcontent.com app.gatedcontent.com | Other | 321ms | 64 KB | 68% | $2/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 298ms | 87 KB | 52% | $2/mo | Essential |
assets.adobedtm.com assets.adobedtm.com | Other | 297ms | 74 KB | 30% | $2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 266ms | 130 KB | 42% | $2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 212ms | 129 KB | 47% | $1/mo | Costly |
static.cloud.coveo.com static.cloud.coveo.com | Other | 206ms | 12 KB | — | $1/mo | Costly |
www.zebra.com www.zebra.com | Other | 189ms | 2 KB | — | $1/mo | Optional |
app.gatedcontent.com app.gatedcontent.com | Other | 171ms | 64 KB | — | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 166ms | 97 KB | 45% | $1/mo | Optional |
www.zebra.com www.zebra.com | Other | 128ms | 8 KB | — | $1/mo | Optional |
scripts.demandbase.com scripts.demandbase.com | Other | 121ms | 19 KB | — | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 98ms | 45 KB | 46% | $1/mo | Optional |
static.cloud.coveo.com static.cloud.coveo.com | Other | 83ms | 22 KB | — | $0/mo | Optional |
assets.adobedtm.com assets.adobedtm.com | Other | 77ms | 14 KB | — | $0/mo | Optional |
These scripts may cost more than they're worth
- www.zebra.com adds 2317ms and costs ~$13/month
- Unattributable adds 1362ms and costs ~$8/month
- www.zebra.com adds 892ms and costs ~$5/month
- www.zebra.com adds 884ms and costs ~$5/month
- Adobe Fonts adds 433ms and costs ~$2/month
- static.cloud.coveo.com adds 351ms and costs ~$2/month
- Google Tag Manager adds 350ms and costs ~$2/month
- cdn.evgnet.com adds 339ms and costs ~$2/month
- app.gatedcontent.com adds 321ms and costs ~$2/month
- assets.adobedtm.com adds 297ms and costs ~$2/month
- Google Tag Manager adds 266ms and costs ~$2/month
- Google Tag Manager adds 212ms and costs ~$1/month
- static.cloud.coveo.com adds 206ms and costs ~$1/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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.zebra.com takes 2317ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 1362ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.zebra.com takes 892ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
84% of www.zebra.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
www.zebra.com takes 884ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
77% of www.zebra.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Adobe Fonts takes 433ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
static.cloud.coveo.com takes 351ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 350ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cdn.evgnet.com takes 339ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
app.gatedcontent.com takes 321ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
68% of app.gatedcontent.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
52% of OneTrust's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
assets.adobedtm.com takes 297ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 266ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 212ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
static.cloud.coveo.com takes 206ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev