Skip to content
https://www.bunny.net

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
3
REVIEW
3
PASS
6
INFO
2

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

86
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
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.
83
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.

679 ms

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

2.34 s

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

26 ms

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

0.061

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

1.30 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.

2.43 s

Page Load Progression

520 ms
1.0 s
1.6 s
2.1 s
2.6 s
3.1 s
3.6 s
4.2 s
Checks
14
6 PASS 3 REVIEW 3 FIX
F
Page Weight Budget
Action
4.5 MB transferred, 150 requests
FIX
4.5 MB transferred, 150 requests
Critical::
Page weighs 7.8 MB (4.5 MB transferred)
Warning::
JavaScript is 672 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 672 KB
Info::
Fonts are 347 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 347 KB
Warning::
150 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.94 g CO2 per page load
4.5 MB / 2.4 MB budget
4.5 MB transferred
150 requests
0.94 g CO2 per page load
Other 2.7 MiB 61%
JavaScript 671.8 KiB 15%
Images 526.5 KiB 12%
Fonts 346.7 KiB 8%
HTML 184.2 KiB 4%
Other 34.8 KiB 1%
Other 2.6 KiB 0%
Other 1.7 KiB 0%
CSS 1.6 KiB 0%
Other 1.3 KiB 0%
Other 184 B 0%
0 2.4 MB 4.9 MB
Over budget

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

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

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.

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 (4.5 MiB of 4.5 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Bundles
Action
21 scripts, 348 KB unused
FIX
21 scripts, 348 KB unused
Warning::
https://bunny.net/f1360e94e2e30dbeea7e60c04ed0f3bb...: 232 KB unused (78%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://matomo.bunny.net/matomo.js: 36 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://bunny.net/c3cc495e85ce1c255d2879a48d23f776...: 31 KB unused (69%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://posthog2.fluffleinfra.net/static/array.js: 26 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://bunny.net/f42ff2403483af4253546554897cc66e...: 23 KB unused (90%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 348 KB
348 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://bunny.net/f1360e94e2e30dbeea7e60c04ed0f3bbc99dc8c6-7da494e8de91670cb9ce.js297 KB232 KB (78%)3rd
https://matomo.bunny.net/matomo.js67 KB36 KB (53%)3rd
https://bunny.net/c3cc495e85ce1c255d2879a48d23f776cd39fa15-12d91d8d18bb2b678e1d.js46 KB31 KB (69%)3rd
https://posthog2.fluffleinfra.net/static/array.js56 KB26 KB (46%)3rd
https://bunny.net/f42ff2403483af4253546554897cc66ecdc598d7-643f0cc06fda69d4fc0b.js27 KB23 KB (90%)3rd
https://chat.bunny.net/chat.js0 KB3rd
https://bunny.net/component---src-templates-regular-js-9a5a18bdcecf1d9564a6.js1 KB3rd
https://widget.trustpilot.com/bootstrap/v5/tp.widget.bootstrap.min.js8 KB3rd
https://bunny.net/commons-3861d71dff0ebe6fdfcf.js29 KB3rd
https://bunny.net/webpack-runtime-b847c8dc28d9ca714870.js3 KB3rd

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

C
Image Optimization
Action
99 images, 0 KB saveable
REVIEW
99 images, 0 KB saveable
Warning::
https://bunny.net/images/image-optimization.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Bunny_Stream_Logo.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/safe-hop-bunny.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/edge-scripting-menu-icon.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/edge-scripting-icon-light.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/ai-automated-transcribed-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/ssd-storage-bunny.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Bunny_CDN_Logo.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/global-network-cdn.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/features.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/video-delivery.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/bunny-optimizer-icon-oran... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/edge-scripting-documentation-ico... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Magic-Containers-Icon.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/logos-companies-grey/WPRo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/most-reliable-cdn.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/edge-storage.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/bunny-scriptable-dns-line... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/bunny-fonts-icon-orange.s... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Logos-companies/case-stud... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/image-cdn.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/bunny-dns-icon-orange.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/bunny-storage-icon-orange... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Animated-Bunnies/Bunny-Ro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Orange-Linear-Magic-Conta... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Orange-linear-icons/magic... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Bunny-Product-Icons/Bunny... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Bunny_Storage_Icon1.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/enterprise-drm-mediacage.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/adjustable-pricing.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/bunny-cdn-icon-modern.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/bunny-stream-icon-orange.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/2025-Icons/Bunny-Database... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Bunny-Shield-Icon.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/portraits/case-study-pane... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/media-cage.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Payment_Option.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Bunny-Product-Icons/Bunny... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://bunny.net/images/Bunny_DNS_Logo.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
99 images 527 KB
0 oversized -0 KB
89 legacy format
39 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

C
JS Execution Cost
Action
1500ms total JS execution
REVIEW
1500ms total JS execution
Warning::
Unattributable: 567ms CPU time
Warning::
https://bunny.net/: 546ms CPU time
Warning::
https://bunny.net/framework-5c94f8705ee981d74e43.j...: 252ms CPU time
Info::
https://bunny.net/f1360e94e2e30dbeea7e60c04ed0f3bb...: 81ms CPU time
Info::
https://posthog2.fluffleinfra.net/static/array.js: 54ms CPU time
Warning::
Third-party scripts: 1500ms (100% of total)

Main Thread Breakdown

Other 39% Style & Layout 23% Script Evaluation 20% Rendering 10% Parse HTML & CSS 3% Script Parsing & Compilation 3%
ScriptTotalScriptingParse/CompileParty
Unattributable567ms7ms0ms3rd
https://bunny.net/546ms7ms1ms3rd
https://bunny.net/framework-5c94f8705ee981d74e43.js252ms153ms3ms3rd
https://bunny.net/f1360e94e2e30dbeea7e60c04ed0f3bbc99dc8c6-7da494e8de91670cb9ce.js81ms54ms26ms3rd
https://posthog2.fluffleinfra.net/static/array.js54ms48ms4ms3rd
B
HTTP Caching
no-cache
REVIEW
no-cache
Info::
Cache-Control header is set
Got: no-cache
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache

DirectiveValueMeaning
no-cacheCache but always revalidate first
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
7 fonts (347 KB)
PASS
7 fonts (347 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

7

347 KB total

Render-blocking

0

of 7

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 FCP 679 ms LCP 2.3 shttps://bunny.net/static/fa-solid-900-54dfc8f551be346014e424fe36b4b0e3.woff2fa-solid-900-54dfc8f551... https://bunny.net/static/fa-solid-900-54dfc8f551be346014e424fe36b4b0e3.woff2 — 134.7 KiB — 0 ms — font-display: swaphttps://fonts.bunny.net/rubik/files/rubik-latin-400-normal.woff2rubik-latin-400-normal.... https://fonts.bunny.net/rubik/files/rubik-latin-400-normal.woff2 — 19.2 KiB — 0 ms — font-display: swaphttps://fonts.bunny.net/rubik/files/rubik-latin-500-normal.woff2rubik-latin-500-normal.... https://fonts.bunny.net/rubik/files/rubik-latin-500-normal.woff2 — 19.3 KiB — 0 ms — font-display: swaphttps://fonts.bunny.net/rubik/files/rubik-latin-600-normal.woff2rubik-latin-600-normal.... https://fonts.bunny.net/rubik/files/rubik-latin-600-normal.woff2 — 19.3 KiB — 0 ms — font-display: swaphttps://fonts.bunny.net/rubik/files/rubik-latin-700-normal.woff2rubik-latin-700-normal.... https://fonts.bunny.net/rubik/files/rubik-latin-700-normal.woff2 — 19.4 KiB — 0 ms — font-display: swaphttps://bunny.net/static/fa-brands-400-758817162cf589db07115f7bc9e4f8d8.woff2fa-brands-400-758817162... https://bunny.net/static/fa-brands-400-758817162cf589db07115f7bc9e4f8d8.woff2 — 117.0 KiB — 0 ms — font-display: swaphttps://fonts.bunny.net/rubik/files/rubik-latin-300-normal.woff2rubik-latin-300-normal.... https://fonts.bunny.net/rubik/files/rubik-latin-300-normal.woff2 — 17.8 KiB — 0 ms — font-display: swap
fa-solid-900-54dfc8f551... woff2 swap
Size 135 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
rubik-latin-400-normal.... woff2 swap
Size 19 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
rubik-latin-500-normal.... woff2 swap
Size 19 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
rubik-latin-600-normal.... woff2 swap
Size 19 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
rubik-latin-700-normal.... woff2 swap
Size 19 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
fa-brands-400-758817162... woff2 swap
Size 117 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
rubik-latin-300-normal.... woff2 swap
Size 18 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)

Fixing the unchecked items could save ~126 KB and ~252 ms

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: Hetzner Online GmbH

Network Waterfall
150 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 1500ms · 582KB · €4/mo
Unattributable
Other
Costly
Execution 567ms
Transfer 0 KB
Monthly Cost €2/mo
bunny.net
Other
Costly
Execution 546ms
Transfer 180 KB
Monthly Cost €2/mo
bunny.net
Other
Costly
Execution 252ms
Transfer 49 KB
Monthly Cost €1/mo
bunny.net
Other
Optional
Execution 81ms
Transfer 297 KB
Unused 78%
Monthly Cost €0/mo
posthog2.fluffleinfra.net
Other
Optional
Execution 54ms
Transfer 56 KB
Unused 46%
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • Unattributable adds 567ms and costs ~€2/month
  • bunny.net adds 546ms and costs ~€2/month
  • bunny.net adds 252ms and costs ~€1/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

Unattributable takes 567ms 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

bunny.net takes 546ms 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

bunny.net takes 252ms 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

78% of bunny.net'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.

Send Feedback