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https://www.replicate.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
74
GRADE
C
FIX
4
REVIEW
2
PASS
6
INFO
2

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

Mobile Desktop
28
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
88
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
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.

1.94 s

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

9.37 s

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

16.01 s

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

0.010

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

15.60 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.

29.67 s

Page Load Progression

5.6 s
11.3 s
16.9 s
22.5 s
28.2 s
33.8 s
39.5 s
45.1 s
Checks
14
6 PASS 2 REVIEW 4 FIX
F
Page Weight Budget
Action
72.9 MB transferred, 194 requests
FIX
72.9 MB transferred, 194 requests
Critical::
Page weighs 79.9 MB (72.9 MB transferred)
Warning::
Images are 35.3 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 35.3 MB
Warning::
JavaScript is 891 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 891 KB
Warning::
194 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 15.3 g CO2 per page load
72.9 MB / 2.4 MB budget
72.9 MB transferred
194 requests
15.3 g CO2 per page load
Other 36.4 MiB 50%
Images 35.3 MiB 48%
JavaScript 890.6 KiB 1%
Fonts 141.5 KiB 0%
Other 116.7 KiB 0%
CSS 35.0 KiB 0%
HTML 34.9 KiB 0%
Other 4.4 KiB 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

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

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

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 (72.9 MiB of 72.9 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
43759ms total JS execution
FIX
43759ms total JS execution
Warning::
https://static.replicateassets.com/fe/06c25e292e4c...: 32557ms CPU time
Warning::
https://static.replicateassets.com/fe/06c25e292e4c...: 5794ms CPU time
Warning::
https://replicate.com/: 1937ms CPU time
Warning::
https://static.replicateassets.com/fe/06c25e292e4c...: 1223ms CPU time
Warning::
Unattributable: 1109ms CPU time
Warning::
Third-party scripts: 43759ms (100% of total)

Main Thread Breakdown

Other 92% Style & Layout 4% Script Evaluation 3%
ScriptTotalScriptingParse/CompileParty
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/entry.client-Bkkz9SmF.js32557ms121ms0ms3rd
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/SVGVisualElement-BRJhL8eU.js5794ms11ms0ms3rd
https://replicate.com/1937ms18ms3ms3rd
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/client-nJgWiswY.js1223ms1100ms0ms3rd
Unattributable1109ms27ms0ms3rd
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/index-CMIMYJXa.js994ms16ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-DW2BV3TMFF&cx=c&gtm=4e6461h294ms77ms16ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-KZDCFZR950ms39ms10ms3rd
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.

B
Image Optimization
59 images, 0 KB saveable
REVIEW
59 images, 0 KB saveable
Info::
All images are well-optimized
59 images 35.3 MB
0 oversized -0 KB
50 legacy format
0 missing dimensions CLS risk
C
JS Bundles
Action
73 scripts, 224 KB unused
REVIEW
73 scripts, 224 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-DW2B...: 70 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.replicateassets.com/fe/06c25e292e4c...: 66 KB unused (32%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-KZD...: 66 KB unused (54%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.replicateassets.com/fe/06c25e292e4c...: 22 KB unused (57%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 224 KB
224 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-DW2BV3TMFF&cx=c&gtm=4e6461h2175 KB70 KB (40%)✓3rd
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/index-CMIMYJXa.js205 KB66 KB (32%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-KZDCFZR9121 KB66 KB (54%)✓3rd
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/chunk-B7RQU5TL-DI5Vns4N.js39 KB22 KB (57%)✓3rd
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/index-DXzm0FL4.js2 KB—✓3rd
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/index-BU7fjMM7.js4 KB—✓3rd
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/exports-qienmGo8.js11 KB—✓3rd
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/root-BazLhC5I.js12 KB—✓3rd
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/index-DrTVYHFm.js13 KB—✓3rd
https://static.replicateassets.com/fe/06c25e292e4c57a0cc9d661e63cff9a91edfb12e/client-only-Y6Fg0M1U.js1 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

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

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
6 fonts (141 KB)
PASS
6 fonts (141 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

141 KB total

Render-blocking

0

of 6

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 1.9 s LCP 9.4 shttps://fonts.replicateassets.com/basiersquare-regular-webfont.woff2basiersquare-regular-we... https://fonts.replicateassets.com/basiersquare-regular-webfont.woff2 — 15.3 KiB — 0 ms — font-display: swaphttps://fonts.replicateassets.com/basiersquare-semibold-webfont.woff2basiersquare-semibold-w... https://fonts.replicateassets.com/basiersquare-semibold-webfont.woff2 — 16.0 KiB — 0 ms — font-display: swaphttps://fonts.replicateassets.com/RBFreigeistNeue-Bold.woff2RBFreigeistNeue-Bold.woff2 https://fonts.replicateassets.com/RBFreigeistNeue-Bold.woff2 — 6.4 KiB — 0 ms — font-display: swaphttps://fonts.replicateassets.com/JetBrainsMono-Regular.woff2JetBrainsMono-Regular.w... https://fonts.replicateassets.com/JetBrainsMono-Regular.woff2 — 90.6 KiB — 0 ms — font-display: swaphttps://fonts.replicateassets.com/RBFreigeistNeue-Regular.woff2RBFreigeistNeue-Regular... https://fonts.replicateassets.com/RBFreigeistNeue-Regular.woff2 — 6.6 KiB — 0 ms — font-display: swaphttps://fonts.replicateassets.com/RBFreigeistNeue-SemiBold.woff2RBFreigeistNeue-SemiBol... https://fonts.replicateassets.com/RBFreigeistNeue-SemiBold.woff2 — 6.6 KiB — 0 ms — font-display: swap
basiersquare-regular-we... woff2 swap
Size 15 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
basiersquare-semibold-w... woff2 swap
Size 16 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
RBFreigeistNeue-Bold.woff2 woff2 swap
Size 6 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
JetBrainsMono-Regular.w... woff2 swap
Size 91 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
RBFreigeistNeue-Regular... woff2 swap
Size 7 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
RBFreigeistNeue-SemiBol... woff2 swap
Size 7 KB
Load time 0 ms
Start 0 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+
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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
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
194 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 43759ms · 635KB · €475/mo
static.replicateassets.com
Other
Costly
Execution 32557ms
Transfer 26 KB
Monthly Cost €353/mo
static.replicateassets.com
Other
Costly
Execution 5794ms
Transfer 19 KB
Monthly Cost €63/mo
replicate.com
Other
Costly
Execution 1937ms
Transfer 35 KB
Monthly Cost €21/mo
static.replicateassets.com
Other
Costly
Execution 1223ms
Transfer 54 KB
Monthly Cost €13/mo
Unattributable
Other
Costly
Execution 1109ms
Transfer 0 KB
Monthly Cost €12/mo
static.replicateassets.com
Other
Costly
Execution 994ms
Transfer 205 KB
Unused 32%
Monthly Cost €11/mo
Google Tag Manager
Tag Manager
Optional
Execution 94ms
Transfer 175 KB
Unused 40%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 50ms
Transfer 121 KB
Unused 54%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • static.replicateassets.com adds 32557ms and costs ~€353/month
  • static.replicateassets.com adds 5794ms and costs ~€63/month
  • replicate.com adds 1937ms and costs ~€21/month
  • static.replicateassets.com adds 1223ms and costs ~€13/month
  • Unattributable adds 1109ms and costs ~€12/month
  • static.replicateassets.com adds 994ms and costs ~€11/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

static.replicateassets.com takes 32557ms 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.replicateassets.com takes 5794ms 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

replicate.com takes 1937ms 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.replicateassets.com takes 1223ms 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

Unattributable takes 1109ms 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.replicateassets.com takes 994ms 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 Google Tag Manager'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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