Performance
· 15 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.
1.53 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.73 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
171 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.016
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.80 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.
3.23 s
Page Load Progression
FPage Weight BudgetAction7.2 MB transferred, 68 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction2193ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.coca-colacompany.com/ | 1462ms | 3ms | 1ms | 3rd |
| https://static-p58902-e658605.adobeaemcloud.com/13a636397c08fefaa11c6cfdabb5128eabed6d30f7ca33875cb8161998ac6692/theme.js | 313ms | 113ms | 32ms | 3rd |
| Unattributable | 240ms | 5ms | 0ms | 3rd |
| https://assets.adobedtm.com/1bfb1e5032f0/33fdda951f02/launch-222d349873da.min.js | 100ms | 81ms | 16ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-MKSKSL3>m_auth=YgnSCG1vlrM0Gsasul5Jjw>m_preview=env-1>m_cookies_win=x | 78ms | 59ms | 16ms | 3rd |
FJS BundlesAction15 scripts, 477 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://static-p58902-e658605.adobeaemcloud.com/13a636397c08fefaa11c6cfdabb5128eabed6d30f7ca33875cb8161998ac6692/theme.js | 349 KB | 244 KB (70%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-MKSKSL3 | 144 KB | 92 KB (64%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-MKSKSL3>m_auth=YgnSCG1vlrM0Gsasul5Jjw>m_preview=env-1>m_cookies_win=x | 145 KB | 71 KB (49%) | ✓ | 3rd |
| https://assets.adobedtm.com/1bfb1e5032f0/33fdda951f02/launch-222d349873da.min.js | 124 KB | 70 KB (56%) | ✓ | 3rd |
| https://www.coca-colacompany.com/etc.clientlibs/onexp/clientlibs/clientlib-base.lc-7a24a291d40ac2c0290fc699b9f9a90e-lc.min.js | 13 KB | — | ✗ | 3rd |
| https://www.coca-colacompany.com/etc.clientlibs/core/wcm/components/commons/datalayer/v2/clientlibs/core.wcm.components.commons.datalayer.v2.lc-1e0136bad0acfb78be509234578e44f9-lc.min.js | 1 KB | — | ✓ | 3rd |
| https://www.coca-colacompany.com/etc.clientlibs/core/wcm/components/commons/datalayer/acdl/core.wcm.components.commons.datalayer.acdl.lc-bf921af342fd2c40139671dbf0920a1f-lc.min.js | 11 KB | — | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/otSDKStub.js | 0 KB | — | ✓ | 3rd |
| https://static-p58902-e658605.adobeaemcloud.com/13a636397c08fefaa11c6cfdabb5128eabed6d30f7ca33875cb8161998ac6692/company.js | 1 KB | — | ✓ | 3rd |
| https://www.coca-colacompany.com/etc.clientlibs/core/wcm/components/commons/site/clientlibs/container.lc-0a6aff292f5cc42142779cde92054524-lc.min.js | 1 KB | — | ✓ | 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
FPage Weight InventoryAction68 resources · 7.2 MB · 477 KB savings availableFIX
~476.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 68 resources | 7.2 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization29 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
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 Loading7 fonts (461 KB)PASS
Web fonts
7
461 KB total
Render-blocking
0
of 7
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
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 ~102 KB and ~204 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall68 requests over 3604msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.coca-colacompany.com www.coca-colacompany.com | Other | 1462ms | 25 KB | — | $19/mo | Costly |
static-p58902-e658605.adobeaemcloud.com static-p58902-e658605.adobeaemcloud.com | Other | 313ms | 349 KB | 70% | $4/mo | Costly |
Unattributable Unattributable | Other | 240ms | 0 KB | — | $3/mo | Costly |
assets.adobedtm.com assets.adobedtm.com | Other | 100ms | 124 KB | 56% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 78ms | 145 KB | 49% | $1/mo | Optional |
These scripts may cost more than they're worth
- www.coca-colacompany.com adds 1462ms and costs ~$19/month
- static-p58902-e658605.adobeaemcloud.com adds 313ms and costs ~$4/month
- Unattributable adds 240ms and costs ~$3/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.coca-colacompany.com takes 1462ms 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-p58902-e658605.adobeaemcloud.com takes 313ms 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
70% of static-p58902-e658605.adobeaemcloud.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
Unattributable takes 240ms 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
56% of assets.adobedtm.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