Performance
· 27 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.
2.77 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
8.18 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.13 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.77 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.
13.73 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction3366ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.kirkify.cc/ | 789ms | 56ms | 32ms | 3rd |
| https://www.kirkify.cc/_next/static/chunks/83250-2b5e73298319875b.js | 598ms | 473ms | 18ms | 3rd |
| https://www.kirkify.cc/_next/static/chunks/0f4d73bd-94ff69be86de0865.js | 568ms | 402ms | 154ms | 3rd |
| Unattributable | 534ms | 51ms | 0ms | 1st |
| https://www.kirkify.cc/_next/static/chunks/webpack-21f5531092cf591a.js | 416ms | 393ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-M002YP48Q4 | 394ms | 306ms | 62ms | 3rd |
| https://www.kirkify.cc/_next/static/chunks/5cd64b6a-d8074bd0862797f9.js | 68ms | 40ms | 25ms | 3rd |
FJS BundlesAction43 scripts, 635 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 | 78 KB (41%) | ✓ | 3rd |
| https://www.kirkify.cc/_next/static/chunks/23670-4c2cba3392d3b49e.js | 76 KB | 49 KB (68%) | ✓ | 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 | 16 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 InventoryAction91 resources · 1.7 MB · 635 KB savings availableFIX
~635.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 91 resources | 1.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction1.7 MB transferred, 91 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
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 Optimization11 images, 0 KB saveablePASS
A+Font Loading4 fonts (196 KB)PASS
Web fonts
4
196 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 Hints7 hints, 0 missing preconnectsPASS
Current Resource Hints
7 resource hints configured
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+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
ACSS Performance Depth1 CSS depth issue(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 Waterfall91 requests over 2187msINFO
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 | 789ms | 33 KB | — | €9/mo | Costly |
www.kirkify.cc www.kirkify.cc | Other | 598ms | 52 KB | — | €6/mo | Costly |
www.kirkify.cc www.kirkify.cc | Other | 568ms | 416 KB | 97% | €6/mo | Costly |
www.kirkify.cc www.kirkify.cc | Other | 416ms | 7 KB | — | €5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 394ms | 191 KB | 41% | €4/mo | Costly |
www.kirkify.cc www.kirkify.cc | Other | 68ms | 62 KB | 36% | €1/mo | Optional |
These scripts may cost more than they're worth
- www.kirkify.cc adds 789ms and costs ~€9/month
- www.kirkify.cc adds 598ms and costs ~€6/month
- www.kirkify.cc adds 568ms and costs ~€6/month
- www.kirkify.cc adds 416ms and costs ~€5/month
- Google Tag Manager adds 394ms and costs ~€4/month
84% 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
www.kirkify.cc takes 789ms 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.kirkify.cc takes 598ms 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.kirkify.cc takes 568ms 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
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
www.kirkify.cc takes 416ms 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 394ms 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
Image Optimization26 images, 308 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
26
Total Size
308 KB