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.
1.09 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.83 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
226 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.002
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.75 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.
2.89 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS BundlesAction30 scripts, 570 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-PKFTZMK>m=4e64k1h2 | 184 KB | 82 KB (45%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-2L3ER9K08G&cx=c>m=4e64k1h2 | 168 KB | 79 KB (47%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202512.1.0/otBannerSdk.js | 126 KB | 76 KB (61%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7STXHW70H2&cx=c>m=4e64k1h2 | 153 KB | 74 KB (48%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-9LNNYDKPFR&cx=c>m=4e64k1h2 | 154 KB | 72 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TKQN7D | 160 KB | 55 KB (34%) | ✓ | 3rd |
| https://cdn.signalfx.com/o11y-gdi-rum/v1.1.1/splunk-otel-web.js | 88 KB | 40 KB (46%) | ✓ | 3rd |
| https://static-p46175-e229011.adobeaemcloud.com/c5fe9a23aa10d7e5d74e0732ca37d05113039d4c15f6415b4c1761b49de2c44f/clientlibs/libs/clientlib-vue/main.js | 42 KB | 35 KB (85%) | ✓ | 3rd |
| https://try.abtasty.com/eb2c0452a0e24e3fa0052290b0a624e9/main.6592f51a9ec4ebf6581e.js | 47 KB | 33 KB (70%) | ✓ | 3rd |
| https://tags.pw.adn.cloud/ACSJVH/activation.js | 44 KB | 25 KB (57%) | ✓ | 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 InventoryAction71 resources · 2.0 MB · 570 KB savings availableFIX
~570.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 71 resources | 2.0 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction2.0 MB transferred, 71 requestsREVIEW
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
CJS Execution CostAction1393ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://login.accor.com/man-Equite-Hather-Sonne-beene-of-the-swere-will-/8391160296771554128?s=DXlJPl56 | 696ms | 639ms | 15ms | 3rd |
| Unattributable | 219ms | 131ms | 0ms | 3rd |
| https://all.accor.com/a/select-country.html | 185ms | 13ms | 1ms | 3rd |
| https://qchmhd61sj.kameleoon.eu/kameleoon.js | 65ms | 42ms | 21ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TKQN7D | 62ms | 49ms | 13ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7STXHW70H2&cx=c>m=4e64k1h2 | 59ms | 50ms | 8ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PKFTZMK>m=4e64k1h2 | 55ms | 39ms | 15ms | 3rd |
| https://cdn.signalfx.com/o11y-gdi-rum/v1.1.1/splunk-otel-web.js | 52ms | 37ms | 9ms | 3rd |
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
AImage Optimization3 images, 0 KB saveablePASS
A+Font Loading6 fonts (159 KB)PASS
Web fonts
6
159 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
- 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 ~10 KB and ~20 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall71 requests over 2139msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
login.accor.com login.accor.com | Other | 696ms | 247 KB | — | €8/mo | Costly |
Unattributable Unattributable | Other | 219ms | 0 KB | — | €2/mo | Costly |
all.accor.com all.accor.com | Other | 185ms | 29 KB | — | €2/mo | Optional |
qchmhd61sj.kameleoon.eu qchmhd61sj.kameleoon.eu | Other | 65ms | 130 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 62ms | 160 KB | 34% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 59ms | 153 KB | 48% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 55ms | 184 KB | 45% | €1/mo | Optional |
cdn.signalfx.com cdn.signalfx.com | Other | 52ms | 88 KB | 46% | €1/mo | Optional |
These scripts may cost more than they're worth
- login.accor.com adds 696ms and costs ~€8/month
- Unattributable adds 219ms and costs ~€2/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
login.accor.com takes 696ms 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 219ms 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