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.
3.59 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
7.38 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
525 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.035
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.59 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.
12.28 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction3750ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.ovhcloud.com/fr/ | 1263ms | 18ms | 1ms | 3rd |
| Unattributable | 687ms | 82ms | 0ms | 3rd |
| https://www.ovhcloud.com/sites/default/files/js/js_HbEl8_uwf6cOhpo210XR1alS2-CFKDhmVBw935Wtbjg.js | 407ms | 165ms | 33ms | 3rd |
| https://www.ovhcloud.com/_next-menu/_next/static/chunks/framework-d7de93249215fb06.js | 398ms | 213ms | 14ms | 3rd |
| https://www.ovhcloud.com/modules/custom/ovh_sentry/dist/sentry.min.js?v=1.0.3 | 331ms | 71ms | 0ms | 3rd |
| https://analytics.ovh.com/ovh/ovh_delta.js | 220ms | 144ms | 64ms | 3rd |
| https://www.ovhcloud.com/7af16cdb/contrib/ovh_theme_patternlab/dist/odss-sub-selection-form/odss-sub-selection-form.min.js?v=1.0.5 | 135ms | 85ms | 0ms | 3rd |
| https://www.ovhcloud.com/_next-menu/_next/static/chunks/main-1b1ee718e7c61b49.js | 102ms | 89ms | 13ms | 3rd |
| https://www.ovhcloud.com/sites/default/files/css/css_UZBWDYom0knS3Rlp6zCtOZVk1ABTGBhTcF4pblB7prM.css | 76ms | 0ms | 0ms | 3rd |
| https://analytics.ovh.com/ovh/ovh_abt.js | 69ms | 57ms | 12ms | 3rd |
Showing top 10 of 11 scripts
DPage Weight InventoryAction145 resources · 1.6 MB · 178 KB savings availableFIX
~177.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 145 resources | 1.6 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction1.6 MB transferred, 145 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
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
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
BImage Optimization24 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Performance issues directly impact user engagement and conversion rates.
CJS BundlesAction80 scripts, 178 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.ovhcloud.com/7af16cdb/contrib/ovh_theme_patternlab/dist/odss-header/header--webcloud.min.js?v=1.0.2 | 60 KB | 60 KB (100%) | ✓ | 3rd |
| https://analytics.ovh.com/ovh/ovh_delta.js | 101 KB | 43 KB (42%) | ✓ | 3rd |
| https://www.ovhcloud.com/_next-menu/_next/static/chunks/framework-d7de93249215fb06.js | 60 KB | 26 KB (44%) | ✓ | 3rd |
| https://www.ovhcloud.com/sites/default/files/js/js_HbEl8_uwf6cOhpo210XR1alS2-CFKDhmVBw935Wtbjg.js | 60 KB | 26 KB (44%) | ✓ | 3rd |
| https://www.ovhcloud.com/website/webcallback/assets/__federation_shared_react-dom.js | 44 KB | 23 KB (53%) | ✓ | 3rd |
| https://analytics.ovh.com/ovh/ovh_tags.js | 44 KB | — | ✓ | 3rd |
| https://www.ovhcloud.com/7af16cdb/contrib/ovh_theme_patternlab/dist/odss-read-more/odss-read-more-card-specs-desktop.min.js?v=1.0.2 | 2 KB | — | ✓ | 3rd |
| https://www.ovhcloud.com/sites/default/files/js/js_w6Z5GBi6dWMNbIGrb0uEelvcydyISKc2rxojrEgelAg.js | 22 KB | — | ✓ | 3rd |
| https://www.ovhcloud.com/7af16cdb/contrib/ovh_theme_patternlab/dist/ods-header/ods-header.min.js?v=1.0.21 | 7 KB | — | ✓ | 3rd |
| https://www.ovhcloud.com/7af16cdb/contrib/ovh_theme_patternlab/dist/ods-header/ods-header-universe.min.js?v=1.0.21 | 3 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
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
A+Text CompressionAll text resources are compressedPASS
A+Font Loading8 fonts (376 KB)PASS
Web fonts
8
376 KB total
Render-blocking
0
of 8
Dominant font-display
swap
Most common across fonts
Font loading timeline
- 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
- 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 ~157 KB and ~314 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints10 hints, 0 missing preconnectsPASS
Current Resource Hints
10 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: OVHcloud
Network Waterfall145 requests over 1644msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.ovhcloud.com www.ovhcloud.com | Other | 1263ms | 80 KB | — | €5/mo | Costly |
Unattributable Unattributable | Other | 687ms | 0 KB | — | €3/mo | Costly |
www.ovhcloud.com www.ovhcloud.com | Other | 407ms | 60 KB | 44% | €2/mo | Costly |
www.ovhcloud.com www.ovhcloud.com | Other | 398ms | 60 KB | 44% | €2/mo | Costly |
www.ovhcloud.com www.ovhcloud.com | Other | 331ms | 40 KB | — | €1/mo | Costly |
analytics.ovh.com analytics.ovh.com | Other | 220ms | 101 KB | 42% | €1/mo | Costly |
www.ovhcloud.com www.ovhcloud.com | Other | 135ms | 6 KB | — | €1/mo | Optional |
www.ovhcloud.com www.ovhcloud.com | Other | 102ms | 40 KB | — | €0/mo | Optional |
www.ovhcloud.com www.ovhcloud.com | Other | 76ms | 104 KB | — | €0/mo | Optional |
analytics.ovh.com analytics.ovh.com | Other | 69ms | 32 KB | — | €0/mo | Optional |
analytics.ovh.com analytics.ovh.com | Other | 63ms | 44 KB | — | €0/mo | Optional |
These scripts may cost more than they're worth
- www.ovhcloud.com adds 1263ms and costs ~€5/month
- Unattributable adds 687ms and costs ~€3/month
- www.ovhcloud.com adds 407ms and costs ~€2/month
- www.ovhcloud.com adds 398ms and costs ~€2/month
- www.ovhcloud.com adds 331ms and costs ~€1/month
- analytics.ovh.com adds 220ms 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.ovhcloud.com takes 1263ms 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 687ms 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.ovhcloud.com takes 407ms 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.ovhcloud.com takes 398ms 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.ovhcloud.com takes 331ms 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
analytics.ovh.com takes 220ms 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