Performance
· 15 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.
1.01 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.73 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
126 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.008
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.55 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.
5.35 s
Page Load Progression
704 ms
1.4 s
2.1 s
2.8 s
3.5 s
4.2 s
4.9 s
5.6 sFPage Weight BudgetAction7.6 MB transferred, 232 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
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 ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction3097ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cursor.com/marketing-static/_next/static/chunks/0wctz3hel4v8f.js?dpl=dpl_FuDTWiffS6ZNYELspE7gDZpoHLA7 | 1205ms | 955ms | 9ms | 3rd |
| https://cursor.com/ | 656ms | 23ms | 13ms | 3rd |
| https://cursor.com/marketing-static/_next/static/chunks/0-l9-.9ymblrk.js?dpl=dpl_FuDTWiffS6ZNYELspE7gDZpoHLA7 | 429ms | 74ms | 3ms | 3rd |
| Unattributable | 273ms | 16ms | 0ms | 3rd |
| https://cursor.com/marketing-static/_next/static/chunks/0m7n79wrn9oni.js?dpl=dpl_FuDTWiffS6ZNYELspE7gDZpoHLA7 | 194ms | 134ms | 6ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-M2R7938W | 134ms | 104ms | 11ms | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js | 86ms | 65ms | 12ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-5H6JBHFD7Z&cx=c>m=4e64f0&bs=ctrl2 | 70ms | 58ms | 12ms | 3rd |
| https://cursor.com/marketing-static/_next/static/chunks/0ubj8n~1c_wkf.js?dpl=dpl_FuDTWiffS6ZNYELspE7gDZpoHLA7 | 51ms | 47ms | 4ms | 3rd |
FJS BundlesAction102 scripts, 1.2 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cursor.com/marketing-static/_next/static/chunks/0bp101vfbkqyt.js?dpl=dpl_FuDTWiffS6ZNYELspE7gDZpoHLA7 | 347 KB | 346 KB (100%) | ✓ | 3rd |
| https://cursor.com/marketing-static/_next/static/chunks/144xc~5r_u5ld.js?dpl=dpl_FuDTWiffS6ZNYELspE7gDZpoHLA7 | 239 KB | 217 KB (91%) | ✓ | 3rd |
| https://cursor.com/marketing-static/_next/static/chunks/09u86nqvkwgzd.js?dpl=dpl_FuDTWiffS6ZNYELspE7gDZpoHLA7 | 178 KB | 137 KB (77%) | ✓ | 3rd |
| https://cursor.com/marketing-static/_next/static/chunks/168zo1p2ggt.t.js?dpl=dpl_FuDTWiffS6ZNYELspE7gDZpoHLA7 | 68 KB | 67 KB (100%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-5H6JBHFD7Z&cx=c>m=4e64f0&bs=ctrl2 | 157 KB | 65 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-M2R7938W | 127 KB | 61 KB (49%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-17332771332 | 145 KB | 60 KB (42%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js | 110 KB | 56 KB (51%) | ✓ | 3rd |
| https://cursor.com/marketing-static/_next/static/chunks/07_w3cvatbjme.js?dpl=dpl_FuDTWiffS6ZNYELspE7gDZpoHLA7 | 49 KB | 48 KB (99%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 96 KB | 34 KB (35%) | ✓ | 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 InventoryAction232 resources · 7.6 MB · 1.2 MB savings availableFIX
~1.2 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 232 resources | 7.6 MiB | ||||||
BImage Optimization23 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 Loading19 fonts (654 KB)PASS
Web fonts
19
654 KB total
Render-blocking
0
of 19
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
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 ~53 KB and ~106 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall232 requests over 3492msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
cursor.com cursor.com | Other | 1205ms | 71 KB | 32% | kr2891/mo | Costly |
cursor.com cursor.com | Other | 656ms | 68 KB | — | kr1574/mo | Costly |
cursor.com cursor.com | Other | 429ms | 49 KB | — | kr1030/mo | Costly |
Unattributable Unattributable | Other | 273ms | 0 KB | — | kr654/mo | Costly |
cursor.com cursor.com | Other | 194ms | 37 KB | — | kr465/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 134ms | 127 KB | 49% | kr321/mo | Costly |
analytics.tiktok.com analytics.tiktok.com | Other | 86ms | 110 KB | 51% | kr207/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 70ms | 157 KB | 41% | kr168/mo | Costly |
cursor.com cursor.com | Other | 51ms | 4 KB | — | kr121/mo | Costly |
These scripts may cost more than they're worth
- cursor.com adds 1205ms and costs ~kr2891/month
- cursor.com adds 656ms and costs ~kr1574/month
- cursor.com adds 429ms and costs ~kr1030/month
- Unattributable adds 273ms and costs ~kr654/month
- cursor.com adds 194ms and costs ~kr465/month
- Google Tag Manager adds 134ms and costs ~kr321/month
- analytics.tiktok.com adds 86ms and costs ~kr207/month
- Google Tag Manager adds 70ms and costs ~kr168/month
- cursor.com adds 51ms and costs ~kr121/month
100% 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
cursor.com takes 1205ms 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
cursor.com takes 656ms 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
cursor.com takes 429ms 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
Unattributable takes 273ms 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
cursor.com takes 194ms 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 134ms 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
analytics.tiktok.com takes 86ms 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 analytics.tiktok.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 70ms 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
cursor.com takes 51ms 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