Performance
· 15 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.
1.61 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.96 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.307
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.16 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.
2.97 s
Page Load Progression
DThird-Party ImpactAction68% third-party, 0 ms blockingFIX
DJS BundlesAction30 scripts, 323 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.peatix.com/assets/production/static/peatix-frontend/js/app-B_eASITY.js | 193 KB | 108 KB (56%) | ✓ | 3rd |
| https://maps.googleapis.com/maps/api/js?libraries=places&language=en&key=AIzaSyBzg-M8DcUaBQh1RgKP9kYLmYd0JqiZ78M | 179 KB | 101 KB (56%) | ✓ | 3rd |
| https://ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js | 59 KB | 53 KB (90%) | ✓ | 3rd |
| https://cookie-cdn.cookiepro.com/scripttemplates/6.10.0/otBannerSdk.js | 78 KB | 32 KB (41%) | ✓ | 3rd |
| https://cdn.peatix.com/assets/production/static/peatix-frontend/js/sentry-jmb0fh8K.js | 39 KB | 29 KB (75%) | ✓ | 3rd |
| https://peatix.com/static/js/jquery.placeholder.min.js | 2 KB | — | ✓ | 1st |
| https://cdn.peatix.com/assets/production/static/peatix-frontend/js/util_url-B5A4HSwK.js | 1 KB | — | ✓ | 3rd |
| https://cookie-cdn.cookiepro.com/consent/8cf9f1a9-9855-4724-8826-92530bee5afc/OtAutoBlock.js | 3 KB | — | ✓ | 3rd |
| https://cdn.peatix.com/assets/production/static/js/peatix-849adb107e6f311f1b2b6a633ca7e868.js | 5 KB | — | ✓ | 3rd |
| https://peatix.com/static/js/footer.js | 3 KB | — | ✓ | 1st |
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
DHTTP CachingActionno-store (uncacheable)FIX
private, no-cache, no-store, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| must-revalidate | — | Must recheck with server after expiry |
BPage Weight Budget1.2 MB transferred, 84 requestsREVIEW
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
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
Source: web.dev
CImage OptimizationAction20 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
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
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
CPage Weight InventoryAction84 resources · 1.2 MB · 323 KB savings availableREVIEW
~323.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 84 resources | 1.2 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+JS Execution Cost484ms total JS executionPASS
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://peatix.com/ | 150ms | 3ms | 1ms | 1st |
| Unattributable | 112ms | 16ms | 0ms | 3rd |
| https://cdn.peatix.com/assets/production/static/peatix-frontend/js/app-B_eASITY.js | 101ms | 90ms | 1ms | 3rd |
| https://cookie-cdn.cookiepro.com/scripttemplates/6.10.0/otBannerSdk.js | 63ms | 39ms | 8ms | 3rd |
| https://maps.googleapis.com/maps/api/js?libraries=places&language=en&key=AIzaSyBzg-M8DcUaBQh1RgKP9kYLmYd0JqiZ78M | 59ms | 40ms | 15ms | 3rd |
A+Font Loading2 fonts (25 KB)PASS
Web fonts
2
25 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
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 ~3 KB and ~6 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall84 requests over 2700msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 112ms | 0 KB | — | $1/mo | Optional |
cdn.peatix.com cdn.peatix.com | Other | 101ms | 193 KB | 56% | $1/mo | Optional |
cookie-cdn.cookiepro.com cookie-cdn.cookiepro.com | Other | 63ms | 78 KB | 41% | $1/mo | Optional |
maps.googleapis.com maps.googleapis.com | Other | 59ms | 179 KB | 56% | $1/mo | Optional |
69% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
56% of cdn.peatix.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
56% of maps.googleapis.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