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.
3.89 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
12.32 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3.50 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.241
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
6.75 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.
22.58 s
Page Load Progression
FPage Weight BudgetAction2.9 MB transferred, 110 requestsFIX
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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
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
DThird-Party ImpactAction96% third-party, 0 ms blockingFIX
FJS Execution CostAction10860ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://tailscale.com/ | 2476ms | 95ms | 39ms | 1st |
| Unattributable | 1745ms | 255ms | 0ms | 3rd |
| https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js | 1281ms | 911ms | 253ms | 3rd |
| https://wwwv2.tailscale.com/_next/static/chunks/2236-bff62fec1011f6ab.js?dpl=dpl_4njLr3ZoSZFgTaU7HMU64PCYJy3E | 850ms | 754ms | 38ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-686222781&cx=c>m=4e64h1 | 582ms | 493ms | 82ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-JY69R9X5MQ | 580ms | 474ms | 97ms | 3rd |
| https://wwwv2.tailscale.com/_next/static/chunks/3911f9e1-08fd5a87a04ceff3.js?dpl=dpl_4njLr3ZoSZFgTaU7HMU64PCYJy3E | 530ms | 282ms | 27ms | 3rd |
| https://wwwv2.tailscale.com/_next/static/chunks/40412b2d-a0a3b2ac210ca682.js?dpl=dpl_4njLr3ZoSZFgTaU7HMU64PCYJy3E | 476ms | 356ms | 119ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PNPKKT7F>m_cookies_win=x | 443ms | 356ms | 74ms | 3rd |
| https://wwwv2.tailscale.com/_next/static/chunks/cfa5c9fd.125b4e727c739854.js?dpl=dpl_4njLr3ZoSZFgTaU7HMU64PCYJy3E | 371ms | 318ms | 24ms | 3rd |
Showing top 10 of 20 scripts
FJS BundlesAction46 scripts, 784 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://wwwv2.tailscale.com/_next/static/chunks/40412b2d-a0a3b2ac210ca682.js?dpl=dpl_4njLr3ZoSZFgTaU7HMU64PCYJy3E | 212 KB | 212 KB (100%) | ✓ | 3rd |
| https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js | 259 KB | 113 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-JY69R9X5MQ&cx=c>m=4e64h1 | 178 KB | 113 KB (64%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-JY69R9X5MQ | 178 KB | 69 KB (39%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PNPKKT7F>m_cookies_win=x | 152 KB | 66 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-686222781&cx=c>m=4e64h1 | 175 KB | 61 KB (35%) | ✓ | 3rd |
| https://wwwv2.tailscale.com/_next/static/chunks/4411-003c349232b9774d.js?dpl=dpl_4njLr3ZoSZFgTaU7HMU64PCYJy3E | 55 KB | 42 KB (75%) | ✓ | 3rd |
| https://wwwv2.tailscale.com/_next/static/chunks/626-bc50847d09da2ca3.js?dpl=dpl_4njLr3ZoSZFgTaU7HMU64PCYJy3E | 43 KB | 38 KB (89%) | ✓ | 3rd |
| https://script.hotjar.com/modules.6a0f3932cb1341a35c18.js | 57 KB | 38 KB (67%) | ✓ | 3rd |
| https://wwwv2.tailscale.com/_next/static/chunks/2236-bff62fec1011f6ab.js?dpl=dpl_4njLr3ZoSZFgTaU7HMU64PCYJy3E | 64 KB | 32 KB (51%) | ✓ | 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 InventoryAction110 resources · 2.9 MB · 784 KB savings availableFIX
~783.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 110 resources | 2.9 MiB | ||||||
BImage Optimization22 images, 0 KB saveableREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
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 Loading4 fonts (415 KB)PASS
Web fonts
4
415 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~167 KB and ~334 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints3 hints, 0 missing preconnectsPASS
Current Resource Hints
3 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall110 requests over 3395msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 1745ms | 0 KB | — | €19/mo | Costly |
cdn.ketchjs.com cdn.ketchjs.com | Other | 1281ms | 259 KB | 44% | €14/mo | Costly |
wwwv2.tailscale.com wwwv2.tailscale.com | Other | 850ms | 64 KB | 51% | €9/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 582ms | 175 KB | 35% | €6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 580ms | 178 KB | 39% | €6/mo | Costly |
wwwv2.tailscale.com wwwv2.tailscale.com | Other | 530ms | 55 KB | — | €6/mo | Costly |
wwwv2.tailscale.com wwwv2.tailscale.com | Other | 476ms | 212 KB | 100% | €5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 443ms | 152 KB | 44% | €5/mo | Costly |
wwwv2.tailscale.com wwwv2.tailscale.com | Other | 371ms | 47 KB | — | €4/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 332ms | 26 KB | — | €4/mo | Costly |
cdn.keyplay.io cdn.keyplay.io | Other | 326ms | 21 KB | — | €4/mo | Costly |
Hotjar script.hotjar.com | Session Replay | 241ms | 57 KB | 67% | €3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 136ms | 178 KB | 64% | €1/mo | Optional |
wwwv2.tailscale.com wwwv2.tailscale.com | Other | 102ms | 243 KB | — | €1/mo | Optional |
LinkedIn Insight snap.licdn.com | Advertising | 101ms | 19 KB | — | €1/mo | Optional |
cdn.rudderlabs.com cdn.rudderlabs.com | Other | 89ms | 1 KB | — | €1/mo | Optional |
wwwv2.tailscale.com wwwv2.tailscale.com | Other | 81ms | 43 KB | 89% | €1/mo | Optional |
www.redditstatic.com www.redditstatic.com | Other | 60ms | 19 KB | — | €1/mo | Optional |
cdn.rudderlabs.com cdn.rudderlabs.com | Other | 56ms | 5 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 1745ms and costs ~€19/month
- cdn.ketchjs.com adds 1281ms and costs ~€14/month
- wwwv2.tailscale.com adds 850ms and costs ~€9/month
- Google Tag Manager adds 582ms and costs ~€6/month
- Google Tag Manager adds 580ms and costs ~€6/month
- wwwv2.tailscale.com adds 530ms and costs ~€6/month
- wwwv2.tailscale.com adds 476ms and costs ~€5/month
- Google Tag Manager adds 443ms and costs ~€5/month
- wwwv2.tailscale.com adds 371ms and costs ~€4/month
- Microsoft Clarity adds 332ms and costs ~€4/month
- cdn.keyplay.io adds 326ms and costs ~€4/month
- Hotjar adds 241ms and costs ~€3/month
77% 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
Unattributable takes 1745ms 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
cdn.ketchjs.com takes 1281ms 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
wwwv2.tailscale.com takes 850ms 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
51% of wwwv2.tailscale.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
Google Tag Manager takes 582ms 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 580ms 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
wwwv2.tailscale.com takes 530ms 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
wwwv2.tailscale.com takes 476ms 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
100% of wwwv2.tailscale.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
Google Tag Manager takes 443ms 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
wwwv2.tailscale.com takes 371ms 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
Microsoft Clarity takes 332ms 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
cdn.keyplay.io takes 326ms 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
Hotjar takes 241ms 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
67% of Hotjar'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
64% 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
89% of wwwv2.tailscale.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