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.
829 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.63 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
88 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.002
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
998 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
2.73 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS BundlesAction43 scripts, 636 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.kirkify.cc/_next/static/chunks/0f4d73bd-94ff69be86de0865.js | 416 KB | 405 KB (97%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-M002YP48Q4 | 191 KB | 77 KB (41%) | ✓ | 3rd |
| https://www.kirkify.cc/_next/static/chunks/23670-4c2cba3392d3b49e.js | 76 KB | 50 KB (70%) | ✓ | 3rd |
| https://www.kirkify.cc/_next/static/chunks/28417-cebe3ec16356097b.js | 36 KB | 32 KB (90%) | ✓ | 3rd |
| https://www.kirkify.cc/_next/static/chunks/44456-bd1c03a52d98d192.js | 29 KB | 27 KB (94%) | ✓ | 3rd |
| https://www.kirkify.cc/_next/static/chunks/67801-86f9bcdc88aef0d6.js | 34 KB | 24 KB (71%) | ✓ | 3rd |
| https://www.kirkify.cc/_next/static/chunks/5cd64b6a-d8074bd0862797f9.js | 62 KB | 22 KB (36%) | ✓ | 3rd |
| https://www.kirkify.cc/_next/static/chunks/90533-4c4c513f5e3b2cc2.js | 7 KB | — | ✓ | 3rd |
| https://www.kirkify.cc/_next/static/chunks/63191-8e57d00a61ef4b9b.js | 7 KB | — | ✓ | 3rd |
| https://www.kirkify.cc/_next/static/chunks/66757-c846de7b993bb3b1.js | 17 KB | — | ✓ | 3rd |
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 InventoryAction114 resources · 1.8 MB · 636 KB savings availableFIX
~636.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 114 resources | 1.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction1.8 MB transferred, 114 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
BJS Execution Cost807ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 173ms | 22ms | 0ms | 1st |
| https://www.kirkify.cc/_next/static/chunks/83250-2b5e73298319875b.js | 166ms | 132ms | 5ms | 3rd |
| https://www.kirkify.cc/ | 141ms | 8ms | 11ms | 3rd |
| https://www.kirkify.cc/_next/static/chunks/0f4d73bd-94ff69be86de0865.js | 126ms | 87ms | 35ms | 3rd |
| https://www.kirkify.cc/_next/static/chunks/5cd64b6a-d8074bd0862797f9.js | 107ms | 99ms | 4ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-M002YP48Q4 | 94ms | 75ms | 13ms | 3rd |
CDocument CompressionActionDocument response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
A+Text CompressionAll text resources are compressedPASS
AImage Optimization14 images, 0 KB saveablePASS
A+Font Loading4 fonts (197 KB)PASS
Web fonts
4
197 KB total
Render-blocking
0
of 4
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+Server Response Intelligence1 server-response signal(s) detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall114 requests over 2135msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.kirkify.cc www.kirkify.cc | Other | 166ms | 52 KB | — | €2/mo | Optional |
www.kirkify.cc www.kirkify.cc | Other | 141ms | 32 KB | — | €2/mo | Optional |
www.kirkify.cc www.kirkify.cc | Other | 126ms | 416 KB | 97% | €1/mo | Optional |
www.kirkify.cc www.kirkify.cc | Other | 107ms | 62 KB | 36% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 94ms | 191 KB | 41% | €1/mo | Optional |
79% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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
97% of www.kirkify.cc'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
Image Optimization26 images, 308 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
26
Total Size
308 KB