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Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
76
GRADE
C
FIX
4
REVIEW
2
PASS
8
INFO
2

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

Mobile Desktop
55
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
95
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.
100
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.

2.21 s

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

4.08 s

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

2.02 s

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

0.001

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

3.64 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.

12.94 s

Page Load Progression

602 ms
1.2 s
1.8 s
2.4 s
3.0 s
3.6 s
4.2 s
4.8 s
Checks
16
8 PASS 2 REVIEW 4 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 (2.0 MiB of 2.0 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
6691ms total JS execution
FIX
6691ms total JS execution
Warning::
https://mistral.ai/: 1185ms CPU time
Warning::
https://mistral.ai/_next/static/chunks/0jlp7q_dh8p...: 1093ms CPU time
Warning::
https://mistral.ai/_next/static/chunks/0ixzxbrlwvk...: 941ms CPU time
Warning::
Unattributable: 918ms CPU time
Warning::
https://static.axept.io/sdk.js: 741ms CPU time
Warning::
Third-party scripts: 6691ms (100% of total)

Main Thread Breakdown

Script Evaluation 44% Other 27% Script Parsing & Compilation 13% Style & Layout 10% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://mistral.ai/1185ms147ms72ms3rd
https://mistral.ai/_next/static/chunks/0jlp7q_dh8pdr.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d3639636531663939393133623562303030386665346664351093ms843ms75ms3rd
https://mistral.ai/_next/static/chunks/0ixzxbrlwvkb_.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d363963653166393939313362356230303038666534666435941ms177ms115ms3rd
Unattributable918ms28ms0ms3rd
https://static.axept.io/sdk.js741ms615ms105ms3rd
https://www.googletagmanager.com/gtag/js?id=G-V0SRTQLQ82&cx=c&gtm=4e6460h1509ms377ms128ms3rd
https://mistral.ai/_next/static/chunks/00cw3d0rb0yl3.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d363963653166393939313362356230303038666534666435384ms364ms20ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-T8R6SXZ4255ms191ms29ms3rd
https://mistral.ai/_next/static/chunks/08ury25dtt1uc.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d363963653166393939313362356230303038666534666435227ms128ms19ms3rd
https://mistral.ai/_next/static/chunks/0~itrr-_l-xgq.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d363963653166393939313362356230303038666534666435202ms71ms15ms3rd

Showing top 10 of 13 scripts

F
JS Bundles
Action
25 scripts, 1021 KB unused
FIX
25 scripts, 1021 KB unused
Warning::
https://mistral.ai/_next/static/chunks/0fqrfvj8lo9...: 264 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://mistral.ai/_next/static/chunks/0ixzxbrlwvk...: 179 KB unused (98%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://mistral.ai/_next/static/chunks/0498v922jg....: 130 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://mistral.ai/_next/static/chunks/0nafd8md.jk...: 91 KB unused (95%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.axept.io/sdk.js: 73 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1021 KB
1021 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://mistral.ai/_next/static/chunks/0fqrfvj8lo92e.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d363963653166393939313362356230303038666534666435275 KB264 KB (100%)✓3rd
https://mistral.ai/_next/static/chunks/0ixzxbrlwvkb_.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d363963653166393939313362356230303038666534666435186 KB179 KB (98%)✓3rd
https://mistral.ai/_next/static/chunks/0498v922jg.9a.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d363963653166393939313362356230303038666534666435133 KB130 KB (100%)✓3rd
https://mistral.ai/_next/static/chunks/0nafd8md.jk3n.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d36396365316639393931336235623030303866653466643598 KB91 KB (95%)✓3rd
https://static.axept.io/sdk.js182 KB73 KB (40%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-V0SRTQLQ82&cx=c&gtm=4e6460h1175 KB70 KB (40%)✓3rd
https://mistral.ai/_next/static/chunks/0jlp7q_dh8pdr.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d363963653166393939313362356230303038666534666435119 KB67 KB (57%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-T8R6SXZ4126 KB63 KB (50%)✓3rd
https://mistral.ai/_next/static/chunks/14ar.s0-uvwx5.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d36396365316639393931336235623030303866653466643565 KB37 KB (59%)✓3rd
https://mistral.ai/_next/static/chunks/0jv_pm0_h6kja.js?dpl=b2bf46033d11dac4648370d82fb665d2efc659add62345e1f8b3b65f308b5b8d36396365316639393931336235623030303866653466643528 KB26 KB (99%)✓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

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

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

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

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

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
Page Weight Budget
Action
2.0 MB transferred, 78 requests
REVIEW
2.0 MB transferred, 78 requests
Info::
Page weighs 6.5 MB (2.0 MB transferred)
Warning::
JavaScript is 1.5 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.5 MB
Info::
78 HTTP requests
Info::
Estimated 0.42 g CO2 per page load
2.0 MB / 2.4 MB budget
2.0 MB transferred
78 requests
0.42 g CO2 per page load
JavaScript 1.5 MiB 78%
Images 262.2 KiB 13%
Other 110.2 KiB 5%
CSS 42.2 KiB 2%
HTML 33.3 KiB 2%
Other 4.0 KiB 0%
Other 478 B 0%
0 2.4 MB 4.9 MB
Approaching limit

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

B
Image Optimization
28 images, 0 KB saveable
REVIEW
28 images, 0 KB saveable
Info::
All images are well-optimized
28 images 262 KB
0 oversized -0 KB
7 legacy format
0 missing dimensions CLS risk
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+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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
3 hints, 0 missing preconnects
PASS
3 hints, 0 missing preconnects
Info::
Page uses 3 resource hint(s)

Current Resource Hints

preconnect
1
preload
2
dns-prefetch
—
prefetch
—

3 resource hints configured

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
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
78 requests over 0ms
INFO

Performance analysis not available for this result.

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 6691ms · 1392KB · €73/mo
mistral.ai
Other
Costly
Execution 1185ms
Transfer 33 KB
Monthly Cost €13/mo
mistral.ai
Other
Costly
Execution 1093ms
Transfer 119 KB
Unused 57%
Monthly Cost €12/mo
mistral.ai
Other
Costly
Execution 941ms
Transfer 186 KB
Unused 98%
Monthly Cost €10/mo
Unattributable
Other
Costly
Execution 918ms
Transfer 0 KB
Monthly Cost €10/mo
static.axept.io
Other
Costly
Execution 741ms
Transfer 182 KB
Unused 40%
Monthly Cost €8/mo
Google Tag Manager
Tag Manager
Costly
Execution 509ms
Transfer 175 KB
Unused 40%
Monthly Cost €6/mo
mistral.ai
Other
Costly
Execution 384ms
Transfer 18 KB
Monthly Cost €4/mo
Google Tag Manager
Tag Manager
Costly
Execution 255ms
Transfer 126 KB
Unused 50%
Monthly Cost €3/mo
mistral.ai
Other
Costly
Execution 227ms
Transfer 38 KB
Monthly Cost €2/mo
mistral.ai
Other
Costly
Execution 202ms
Transfer 41 KB
Unused 54%
Monthly Cost €2/mo
mistral.ai
Other
Optional
Execution 110ms
Transfer 275 KB
Unused 100%
Monthly Cost €1/mo
mistral.ai
Other
Optional
Execution 72ms
Transfer 133 KB
Unused 100%
Monthly Cost €1/mo
mistral.ai
Other
Optional
Execution 53ms
Transfer 65 KB
Unused 59%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • mistral.ai adds 1185ms and costs ~€13/month
  • mistral.ai adds 1093ms and costs ~€12/month
  • mistral.ai adds 941ms and costs ~€10/month
  • Unattributable adds 918ms and costs ~€10/month
  • static.axept.io adds 741ms and costs ~€8/month
  • Google Tag Manager adds 509ms and costs ~€6/month
  • mistral.ai adds 384ms and costs ~€4/month
  • Google Tag Manager adds 255ms and costs ~€3/month
  • mistral.ai adds 227ms and costs ~€2/month
  • mistral.ai adds 202ms and costs ~€2/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

mistral.ai takes 1185ms 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

mistral.ai takes 1093ms 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

57% of mistral.ai's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

mistral.ai takes 941ms 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

98% of mistral.ai's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

Unattributable takes 918ms 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

static.axept.io takes 741ms 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

Google Tag Manager takes 509ms 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

mistral.ai takes 384ms 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

Google Tag Manager takes 255ms 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

mistral.ai takes 227ms 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

mistral.ai takes 202ms 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

54% of mistral.ai's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

100% of mistral.ai's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

100% of mistral.ai's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

59% of mistral.ai's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

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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