Performance
· 23 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.
755 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.27 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
169 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.007
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.44 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.
3.34 s
Page Load Progression
DPage Weight BudgetAction2.3 MB transferred, 127 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
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.
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
DHTTP CachingActionno-store (uncacheable)FIX
no-store
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
BImage Optimization52 images, 0 KB saveableREVIEW
CJS Execution CostAction1228ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://popularkeys.com/es | 430ms | 13ms | 13ms | 1st |
| Unattributable | 265ms | 22ms | 0ms | 1st |
| https://popularkeys.com/_next/static/chunks/4805-b96bf9ac85f9266e.js | 201ms | 185ms | 5ms | 1st |
| https://popularkeys.com/_next/static/chunks/webpack-3178f082be69f0e9.js | 134ms | 132ms | 0ms | 1st |
| https://popularkeys.com/_next/static/chunks/0da162a7-b3922e8f03433c77.js | 126ms | 49ms | 4ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-JHF5DRTQSL | 72ms | 59ms | 12ms | 3rd |
BJS Bundles43 scripts, 68 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-JHF5DRTQSL | 166 KB | 68 KB (41%) | ✓ | 3rd |
| https://popularkeys.com/_next/static/chunks/app/%5Blocale%5D/layout-d9be8cdadf5f283c.js | 4 KB | — | ✓ | 1st |
| https://popularkeys.com/_next/static/chunks/2787-66afe62c1ae3cfae.js | 11 KB | — | ✓ | 1st |
| https://popularkeys.com/_next/static/chunks/5335-43ad90990c124202.js | 6 KB | — | ✓ | 1st |
| https://popularkeys.com/_next/static/chunks/2753-c5800823d04dcbe3.js | 7 KB | — | ✓ | 1st |
| https://popularkeys.com/_next/static/chunks/5497-6812ad51b89016bb.js | 4 KB | — | ✓ | 1st |
| https://popularkeys.com/_next/static/chunks/app/error-6d3f9aa3d17945a7.js | 4 KB | — | ✓ | 1st |
| https://popularkeys.com/_next/static/chunks/app/not-found-38cbe80cf5fb6fe6.js | 1 KB | — | ✓ | 1st |
| https://popularkeys.com/_next/static/chunks/app/global-error-c75d043190e64025.js | 2 KB | — | ✓ | 1st |
| https://popularkeys.com/_next/static/chunks/9796-5bc3e30a3eca1a25.js | 6 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
CCompression AlgorithmActionMain response served uncompressedREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CPage Weight InventoryAction127 resources · 2.3 MB · 68 KB savings availableREVIEW
~68.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 127 resources | 2.3 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Third-Party Impact8% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading7 fonts (102 KB)PASS
Web fonts
7
102 KB total
Render-blocking
0
of 7
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 HintsNo optimization neededPASS
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
Network Waterfall127 requests over 3185msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 72ms | 166 KB | 41% | €0/mo | Optional |
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-07-07 — 2026-08-03)
LCP (p75)
1702 ms
90% good
INP (p75)
95 ms
93% good
CLS (p75)
0.050
84% good
FCP (p75)
1487 ms
TTFB (p75)
886 ms
Image Optimization87 images, 139 KB total, 3 KB wastedINFO
Image Optimization Audit
Total Images
87
Total Size
139 KB
Oversized
1
Wasted
3 KB