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https://gandi.net

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
2
REVIEW
2
PASS
11
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
93
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
94
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

2.34 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

2.73 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

14 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

2.34 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.

3.83 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
11 PASS 2 REVIEW 2 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (294.7 KiB of 294.9 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
JS Execution Cost
Action
1059ms total JS execution
REVIEW
1059ms total JS execution
Warning::
https://www.gandi.net/en-US: 676ms CPU time
Info::
Unattributable: 197ms CPU time
Info::
https://tarteaucitron.io/load.js?domain=gandi.net&...: 129ms CPU time
Info::
https://www.gandi.net/static/js/modern.7a05aaf49ec...: 56ms CPU time
Warning::
Third-party scripts: 1059ms (100% of total)

Main Thread Breakdown

Style & Layout 32% Other 30% Script Evaluation 22% Parse HTML & CSS 6% Rendering 6% Script Parsing & Compilation 4%
ScriptTotalScriptingParse/CompileParty
https://www.gandi.net/en-US676ms135ms4ms3rd
Unattributable197ms6ms0ms3rd
https://tarteaucitron.io/load.js?domain=gandi.net&uuid=f5937014c90cccd8555d1bceaf844b703699ad9e129ms55ms16ms3rd
https://www.gandi.net/static/js/modern.7a05aaf49ec8.js56ms38ms1ms3rd
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
295 KB transferred, 23 requests
PASS
295 KB transferred, 23 requests
Info::
Page weighs 975 KB (295 KB transferred)
Info::
23 HTTP requests
Info::
Estimated 0.06 g CO2 per page load
295 KB / 2.4 MB budget
295 KB transferred
23 requests
0.06 g CO2 per page load
JavaScript 124.8 KiB 42%
Fonts 75.0 KiB 25%
HTML 57.5 KiB 20%
CSS 29.4 KiB 10%
Other 4.7 KiB 2%
Other 2.4 KiB 1%
Images 1.1 KiB 0%
0 2.4 MB 4.9 MB
Under budget
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A
Image Optimization
5 images, 0 KB saveable
PASS
5 images, 0 KB saveable
Info::
All images are well-optimized
5 images 1 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+
Font Loading
3 fonts (75 KB)
PASS
3 fonts (75 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

75 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 2.3 s LCP 2.7 shttps://www.gandi.net/static/fonts/Fraunces72ptSoft-SemiBold.35ff98584f74.woff2Fraunces72ptSoft-SemiBo... https://www.gandi.net/static/fonts/Fraunces72ptSoft-SemiBold.35ff98584f74.woff2 — 28.3 KiB — 11 ms — font-display: swaphttps://www.gandi.net/static/fonts/Inter-Regular--latin.5b5385e029f4.woff2Inter-Regular--latin.5b... https://www.gandi.net/static/fonts/Inter-Regular--latin.5b5385e029f4.woff2 — 22.8 KiB — 16 ms — font-display: swaphttps://www.gandi.net/static/fonts/Inter-SemiBold--latin.cb9cb89b325d.woff2Inter-SemiBold--latin.c... https://www.gandi.net/static/fonts/Inter-SemiBold--latin.cb9cb89b325d.woff2 — 23.8 KiB — 16 ms — font-display: swap
Fraunces72ptSoft-SemiBo... woff2 swap
Size 28 KB
Load time 11 ms
Start 106 ms
Risk FOUT — text flashes from fallback to web font
Inter-Regular--latin.5b... woff2 swap
Size 23 KB
Load time 16 ms
Start 107 ms
Risk FOUT — text flashes from fallback to web font
Inter-SemiBold--latin.c... woff2 swap
Size 24 KB
Load time 16 ms
Start 107 ms
Risk FOUT — text flashes from fallback to web font
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+
JS Bundles
5 scripts, 27 KB unused
PASS
5 scripts, 27 KB unused
Warning::
https://cdn.tarteaucitron.io/tarteaucitron.service...: 27 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 27 KB
27 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn.tarteaucitron.io/tarteaucitron.services.min.js?v=1.32.036 KB27 KB (75%)✓3rd
https://www.gandi.net/static/js/modern.7a05aaf49ec8.js31 KB—✓3rd
https://tag.aticdn.net/616708/smarttag.js24 KB—✓3rd
https://cdntag.tarteaucitron.io/load.js?domain=gandi.net&uuid=f5937014c90cccd8555d1bceaf844b703699ad9e33 KB—✓3rd
https://cdn.tarteaucitron.io/lang/tarteaucitron.en.min.js?v=1.32.02 KB—✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
7 hints, 0 missing preconnects
PASS
7 hints, 0 missing preconnects
Info::
Page uses 7 resource hint(s)

Current Resource Hints

preconnect
2
preload
3
dns-prefetch
2
prefetch
—

7 resource hints configured

A
Page Weight Inventory
23 resources · 295 KB · 27 KB savings available
PASS
23 resources · 295 KB · 27 KB savings available
Info::
Within 1MB page-weight target
Got: 295 KB
Warning::
22 third-party resources (100% of weight)
23 resources · 294.9 KiB · 22 third-party Within 1MB page-weight target
JavaScript 42% · 124.8 KiB
Font 25% · 75.0 KiB
Document 20% · 58.2 KiB
CSS 10% · 29.4 KiB
Image 2% · 4.9 KiB
Other 1% · 2.6 KiB

~26.7 KiB of savings available

Remove unused JavaScript: 26.7 KiB
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
23 requests over 560ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 2.3 s LCP 2.7 shttps://gandi.net// https://gandi.net/ — 301 — 165 B — 64 ms — http/1.1https://www.gandi.net/www.gandi.net/ https://www.gandi.net/ — 302 — 477 B — 15 ms — h2https://www.gandi.net/en-USwww.gandi.net/en-US https://www.gandi.net/en-US — 200 — 57.5 KiB — 4 ms — h2https://www.gandi.net/static/fonts/Fraunces72ptSoft-SemiBold.35ff98584f74.woff2www.gandi.net/static/fonts/Fraunces... https://www.gandi.net/static/fonts/Fraunces72ptSoft-SemiBold.35ff98584f74.woff2 — 200 — 28.3 KiB — 11 ms — h2https://www.gandi.net/static/fonts/Inter-Regular--latin.5b5385e029f4.woff2www.gandi.net/static/fonts/Inter-Re... https://www.gandi.net/static/fonts/Inter-Regular--latin.5b5385e029f4.woff2 — 200 — 22.8 KiB — 16 ms — h2https://www.gandi.net/static/fonts/Inter-SemiBold--latin.cb9cb89b325d.woff2www.gandi.net/static/fonts/Inter-Se... https://www.gandi.net/static/fonts/Inter-SemiBold--latin.cb9cb89b325d.woff2 — 200 — 23.8 KiB — 16 ms — h2https://www.gandi.net/static/css/common.31884ced1615.csswww.gandi.net/static/css/common.318... https://www.gandi.net/static/css/common.31884ced1615.css — 200 — 16.7 KiB — 13 ms — h2https://www.gandi.net/static/css/home.5b8fc49a8065.csswww.gandi.net/static/css/home.5b8fc... https://www.gandi.net/static/css/home.5b8fc49a8065.css — 200 — 6.9 KiB — 16 ms — h2https://www.gandi.net/static/js/modern.7a05aaf49ec8.jswww.gandi.net/static/js/modern.7a05... https://www.gandi.net/static/js/modern.7a05aaf49ec8.js — 200 — 30.7 KiB — 25 ms — h2https://www.gandi.net/static/images/icons/news-placeholder.7725539fceb6.svgwww.gandi.net/static/images/icons/n... https://www.gandi.net/static/images/icons/news-placeholder.7725539fceb6.svg — 200 — 770 B — 25 ms — h2https://tarteaucitron.io/load.js?domain=gandi.net&uuid=f5937014c90cccd8555d1bceaf844b703699ad9etarteaucitron.io/load.js?domain=gan... https://tarteaucitron.io/load.js?domain=gandi.net&uuid=f5937014c90cccd8555d1bceaf844b703699ad9e — 301 — 201 B — 97 ms — h2https://tag.aticdn.net/616708/smarttag.jstag.aticdn.net/616708/smarttag.js https://tag.aticdn.net/616708/smarttag.js — 200 — 23.9 KiB — 92 ms — h2data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNSIgaGVpZ2h0PSI5IiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwM…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNSIgaGVpZ2h0PSI5IiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwM… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGZpbGw9IiM2NjQwZmUiI…data:image/svg+xml;base64,PHN2ZyB4b... data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGZpbGw9IiM2NjQwZmUiI… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTYiIGhlaWdodD0iMTYiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yM…data:image/svg+xml;base64,PHN2ZyB3a... data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTYiIGhlaWdodD0iMTYiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yM… — 200 — 0 B — 0 ms — datahttps://news.api.gandi.net/api/v5/newssuggest/wpapi?lang=en&limit=2news.api.gandi.net/api/v5/newssugge... https://news.api.gandi.net/api/v5/newssuggest/wpapi?lang=en&limit=2 — 200 — 2.4 KiB — 369 ms — http/1.1https://cdntag.tarteaucitron.io/load.js?domain=gandi.net&uuid=f5937014c90cccd8555d1bceaf844b703699ad9ecdntag.tarteaucitron.io/load.js?dom... https://cdntag.tarteaucitron.io/load.js?domain=gandi.net&uuid=f5937014c90cccd8555d1bceaf844b703699ad9e — 200 — 32.6 KiB — 124 ms — h2https://logs1412.xiti.com/hit.xiti?s=616708&idclient=b6bed0b3-b1a3-4f7c-ad76-ca9a4ac362d6&vc=false&vm=exempt&ts=1776358685088&page_url=https://www.gandi.net/en-US&vtag=5.29.4&ptag=js&r=412x823x24x24&re=412x823&locale=en-US&lang=en&country=US&currency=USD&taxes=N%2FA&grid=A&p=WWW::Home&release=5.3.7&ref=logs1412.xiti.com/hit.xiti?s=616708... https://logs1412.xiti.com/hit.xiti?s=616708&idclient=b6bed0b3-b1a3-4f7c-ad76-ca9a4ac362d6&vc=false&vm=exempt&ts=1776358685088&page_url=https://www.gandi.net/en-US&vtag=5.29.4&ptag=js&r=412x823x24x24&re=412x823&locale=en-US&lang=en&country=US&currency=USD&taxes=N%2FA&grid=A&p=WWW::Home&release=5.3.7&ref= — 200 — 307 B — 100 ms — h2https://cdn.tarteaucitron.io/css/tarteaucitron.min.css?v=1.32.0cdn.tarteaucitron.io/css/tarteaucit... https://cdn.tarteaucitron.io/css/tarteaucitron.min.css?v=1.32.0 — 200 — 5.8 KiB — 38 ms — h2https://cdn.tarteaucitron.io/lang/tarteaucitron.en.min.js?v=1.32.0cdn.tarteaucitron.io/lang/tarteauci... https://cdn.tarteaucitron.io/lang/tarteaucitron.en.min.js?v=1.32.0 — 200 — 1.6 KiB — 41 ms — h2https://www.gandi.net/static/images/favicon.e848261f33f9.svgwww.gandi.net/static/images/favicon... https://www.gandi.net/static/images/favicon.e848261f33f9.svg — 200 — 1.1 KiB — 3 ms — h2https://www.gandi.net/favicon.icowww.gandi.net/favicon.ico https://www.gandi.net/favicon.ico — 200 — 2.7 KiB — 3 ms — h2https://cdn.tarteaucitron.io/tarteaucitron.services.min.js?v=1.32.0cdn.tarteaucitron.io/tarteaucitron.... https://cdn.tarteaucitron.io/tarteaucitron.services.min.js?v=1.32.0 — 200 — 36.0 KiB — 22 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 1059ms · 88KB · $18/mo
www.gandi.net
Other
Costly
Execution 676ms
Transfer 58 KB
Monthly Cost $12/mo
Unattributable
Other
Optional
Execution 197ms
Transfer 0 KB
Monthly Cost $3/mo
tarteaucitron.io
Other
Optional
Execution 129ms
Transfer 0 KB
Monthly Cost $2/mo
www.gandi.net
Other
Optional
Execution 56ms
Transfer 31 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.gandi.net adds 676ms and costs ~$12/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

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.gandi.net takes 676ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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