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.
3.87 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
15.88 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.35 s
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.
3.87 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.
17.56 s
Page Load Progression
DPage Weight BudgetAction2.5 MB transferred, 77 requestsFIX
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
FJS Execution CostAction4200ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cdn.lib.getjad.io/library/6783/overblogkiwi | 723ms | 553ms | 129ms | 3rd |
| https://www.over-blog.com/ | 677ms | 61ms | 14ms | 3rd |
| Unattributable | 586ms | 157ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WG3SK3P | 410ms | 365ms | 40ms | 3rd |
| https://assets.over-blog.com/b/site/v2026.06.02/overblog.a05b16ec.js | 300ms | 117ms | 3ms | 3rd |
| https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 266ms | 233ms | 32ms | 3rd |
| https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/ui-web-fr-web.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 222ms | 133ms | 28ms | 3rd |
| https://cdn.lib.getjad.io/prebid/6783 | 204ms | 165ms | 39ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 | 200ms | 136ms | 63ms | 3rd |
| https://c.amazon-adsystem.com/aax2/apstag.js | 193ms | 150ms | 31ms | 3rd |
Showing top 10 of 14 scripts
FJS BundlesAction30 scripts, 520 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 | 188 KB | 142 KB (76%) | ✓ | 3rd |
| https://cdn.lib.getjad.io/prebid/6783 | 133 KB | 106 KB (80%) | ✓ | 3rd |
| https://cdn.lib.getjad.io/library/6783/overblogkiwi | 193 KB | 97 KB (51%) | ✗ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WG3SK3P | 153 KB | 80 KB (52%) | ✓ | 3rd |
| https://c.amazon-adsystem.com/aax2/apstag.js | 91 KB | 50 KB (55%) | ✓ | 3rd |
| https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 102 KB | 46 KB (45%) | ✓ | 3rd |
| https://static.xx.fbcdn.net/rsrc.php/v4/yy/r/XYsqNXekWRA.js | 12 KB | — | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/tag/js/gpt.js | 34 KB | — | ✓ | 3rd |
| https://boot.pbstck.com/v1/tag/b0709f0b-adc5-4c7f-8dc1-84682f036be8 | 1 KB | — | ✓ | 3rd |
| https://static.xx.fbcdn.net/rsrc.php/v4/y6/r/n80KC3B7ON5.js | 93 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
FPage Weight InventoryAction77 resources · 2.5 MB · 520 KB savings availableFIX
~520.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 77 resources | 2.5 MiB | ||||||
CImage OptimizationAction28 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
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingno-cacheREVIEW
no-cache
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading6 fonts (252 KB)PASS
Web fonts
6
252 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 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 Waterfall77 requests over 1394msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
cdn.lib.getjad.io cdn.lib.getjad.io | Other | 723ms | 193 KB | 51% | €3/mo | Costly |
www.over-blog.com www.over-blog.com | Other | 677ms | 210 KB | — | €3/mo | Costly |
Unattributable Unattributable | Other | 586ms | 0 KB | — | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 410ms | 153 KB | 52% | €2/mo | Costly |
assets.over-blog.com assets.over-blog.com | Other | 300ms | 28 KB | — | €1/mo | Costly |
sdk.privacy-center.org sdk.privacy-center.org | Other | 266ms | 102 KB | 45% | €1/mo | Costly |
sdk.privacy-center.org sdk.privacy-center.org | Other | 222ms | 55 KB | — | €1/mo | Costly |
cdn.lib.getjad.io cdn.lib.getjad.io | Other | 204ms | 133 KB | 80% | €1/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 200ms | 188 KB | 76% | €1/mo | Optional |
c.amazon-adsystem.com c.amazon-adsystem.com | Other | 193ms | 91 KB | 55% | €1/mo | Optional |
boot.pbstck.com boot.pbstck.com | Other | 131ms | 1 KB | — | €1/mo | Optional |
sdk.privacy-center.org sdk.privacy-center.org | Other | 122ms | 1 KB | — | €1/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 96ms | 34 KB | — | €0/mo | Optional |
secure.cdn.fastclick.net secure.cdn.fastclick.net | Other | 70ms | 22 KB | — | €0/mo | Optional |
These scripts may cost more than they're worth
- cdn.lib.getjad.io adds 723ms and costs ~€3/month
- www.over-blog.com adds 677ms and costs ~€3/month
- Unattributable adds 586ms and costs ~€2/month
- Google Tag Manager adds 410ms and costs ~€2/month
- assets.over-blog.com adds 300ms and costs ~€1/month
- sdk.privacy-center.org adds 266ms and costs ~€1/month
- sdk.privacy-center.org adds 222ms and costs ~€1/month
- cdn.lib.getjad.io adds 204ms 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
cdn.lib.getjad.io takes 723ms 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
51% of cdn.lib.getjad.io'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.over-blog.com takes 677ms 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 586ms 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 410ms 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
52% of Google Tag Manager'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.over-blog.com takes 300ms 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
sdk.privacy-center.org 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
sdk.privacy-center.org takes 222ms 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.lib.getjad.io takes 204ms 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
80% of cdn.lib.getjad.io'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
76% of securepubads.g.doubleclick.net'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
55% of c.amazon-adsystem.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