Performance
· 17 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.
1.52 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.53 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.57 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.502
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.50 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.
16.80 s
Page Load Progression
FJS Execution CostAction6904ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 1184ms | 52ms | 0ms | 3rd |
| https://js.hs-analytics.net/analytics/1776800700000/19654585.js | 1024ms | 613ms | 40ms | 3rd |
| https://feedly.com/ | 853ms | 48ms | 1ms | 1st |
| https://feedly.com/_next/static/chunks/framework-e1511137f1bd22fe.js | 641ms | 566ms | 23ms | 1st |
| https://feedly.com/_next/static/chunks/pages/_app-196f0cb71a46fb08.js | 613ms | 427ms | 181ms | 1st |
| https://www.googletagmanager.com/gtm.js?id=GTM-MTFZMWCJ | 508ms | 431ms | 63ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-874262938&cx=c>m=4e64h1 | 478ms | 427ms | 39ms | 3rd |
| https://feedly.com/_next/static/chunks/9214e03e-c0e4b6c506670078.js | 378ms | 276ms | 49ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-75485CJCK3&cx=c>m=4e64h1 | 360ms | 297ms | 59ms | 3rd |
| https://www.redditstatic.com/ads/pixel.js?pixel_id=a2_ion5py85tstv | 229ms | 195ms | 8ms | 3rd |
Showing top 10 of 16 scripts
FJS BundlesAction47 scripts, 1.8 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://feedly.com/_next/static/chunks/9214e03e-c0e4b6c506670078.js | 152 KB | 479 KB (96%) | ✓ | 1st |
| https://feedly.com/_next/static/chunks/9214e03e-c0e4b6c506670078.js | 0 KB | 479 KB (96%) | ✓ | 1st |
| https://feedly.com/_next/static/chunks/pages/_app-196f0cb71a46fb08.js | 475 KB | 323 KB (68%) | ✓ | 1st |
| https://feedly.com/_next/static/chunks/3071-bbe043a5af8cb10d.js | 0 KB | 116 KB (87%) | ✓ | 1st |
| https://feedly.com/_next/static/chunks/3071-bbe043a5af8cb10d.js | 40 KB | 116 KB (87%) | ✓ | 1st |
| https://www.googletagmanager.com/gtag/js?id=AW-874262938 | 145 KB | 106 KB (73%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-75485CJCK3&cx=c>m=4e64h1 | 171 KB | 68 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-MTFZMWCJ | 158 KB | 64 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-874262938&cx=c>m=4e64h1 | 145 KB | 55 KB (38%) | ✓ | 3rd |
| https://feedly.com/_next/static/chunks/9006-fabbd61a2a70b0a5.js | 0 KB | 27 KB (53%) | ✓ | 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
FPage Weight InventoryAction106 resources · 2.0 MB · 1.8 MB savings availableFIX
~1.8 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 106 resources | 2.0 MiB | ||||||
CPage Weight BudgetAction2.0 MB transferred, 106 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
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
BThird-Party Impact45% third-party, 0 ms blockingREVIEW
BImage Optimization28 images, 0 KB saveableREVIEW
BHTTP Cachingpublic, max-age=0, must-revalidateREVIEW
public, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading2 fonts (144 KB)PASS
Web fonts
2
144 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints15 hints, 0 missing preconnectsPASS
Current Resource Hints
15 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall106 requests over 3862msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 1184ms | 0 KB | — | €13/mo | Costly |
HubSpot Analytics js.hs-analytics.net | Analytics | 1024ms | 43 KB | — | €11/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 508ms | 158 KB | 40% | €6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 478ms | 145 KB | 38% | €5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 360ms | 171 KB | 40% | €4/mo | Costly |
www.redditstatic.com www.redditstatic.com | Other | 229ms | 19 KB | — | €2/mo | Costly |
js.hscollectedforms.net js.hscollectedforms.net | Other | 139ms | 26 KB | — | €2/mo | Optional |
js.hubspot.com js.hubspot.com | Other | 135ms | 28 KB | — | €1/mo | Optional |
LinkedIn Insight snap.licdn.com | Advertising | 105ms | 19 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 71ms | 145 KB | 73% | €1/mo | Optional |
js.hsadspixel.net js.hsadspixel.net | Other | 69ms | 4 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 1184ms and costs ~€13/month
- HubSpot Analytics adds 1024ms and costs ~€11/month
- Google Tag Manager adds 508ms and costs ~€6/month
- Google Tag Manager adds 478ms and costs ~€5/month
- Google Tag Manager adds 360ms and costs ~€4/month
- www.redditstatic.com adds 229ms and costs ~€2/month
62% 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
Unattributable takes 1184ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
HubSpot Analytics takes 1024ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 508ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 478ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 360ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.redditstatic.com takes 229ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
73% of Google Tag Manager'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