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.
1.12 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.03 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
303 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.
1.23 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.
6.05 s
Page Load Progression
FPage Weight BudgetAction3.6 MB transferred, 103 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
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 CostAction2465ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.fotor.com/ | 937ms | 5ms | 1ms | 3rd |
| Unattributable | 191ms | 8ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5763HM | 184ms | 111ms | 69ms | 3rd |
| https://pub-static.fotor.com/static/web/lib/payment/bundle.js?v=20260129 | 180ms | 109ms | 52ms | 3rd |
| https://static.fotor.com/web/_next/static/chunks/framework-a38aed3ce6ea37ca8eea.js | 160ms | 116ms | 1ms | 3rd |
| https://static.fotor.com/web/_next/static/chunks/pages/_app-d872cc5ec68ef0b0462f.js | 136ms | 55ms | 80ms | 3rd |
| https://static.fotor.com/web/_next/static/chunks/pages/index-4d91a561b04dc2163e82.js | 122ms | 107ms | 0ms | 3rd |
| https://js.stripe.com/v3 | 119ms | 84ms | 32ms | 3rd |
| https://scripts.clarity.ms/0.8.59-beta/clarity.js | 117ms | 94ms | 3ms | 3rd |
| https://pub-static.fotor.com/static/web/lib/a8s/bundle.js | 111ms | 62ms | 41ms | 3rd |
Showing top 10 of 12 scripts
FJS BundlesAction49 scripts, 1018 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://pub-static.fotor.com/static/web/lib/payment/bundle.js?v=20260129 | 474 KB | 244 KB (52%) | ✓ | 3rd |
| https://pub-static.fotor.com/static/web/lib/a8s/bundle.js | 555 KB | 170 KB (31%) | ✓ | 3rd |
| https://js.stripe.com/v3 | 221 KB | 148 KB (67%) | ✓ | 3rd |
| https://static.fotor.com/web/_next/static/chunks/5711d823-8e6d8a73ee5fe357e582.js | 184 KB | 94 KB (51%) | ✓ | 3rd |
| https://pub-static.fotor.com/static/web/lib/account/bundle.js | 222 KB | 83 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7HXB45DMZS&cx=c>m=4e64k1 | 169 KB | 69 KB (41%) | ✓ | 3rd |
| https://accounts.google.com/gsi/client | 96 KB | 68 KB (71%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5763HM | 154 KB | 64 KB (42%) | ✓ | 3rd |
| https://static.fotor.com/web/_next/static/chunks/pages/_app-d872cc5ec68ef0b0462f.js | 495 KB | 57 KB (12%) | ✓ | 3rd |
| https://pub-static.fotor.com/static/web/lib/sensors/sensorsdata.min.js | 37 KB | 21 KB (56%) | ✓ | 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 InventoryAction103 resources · 3.6 MB · 1018 KB savings availableFIX
~1018.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 103 resources | 3.6 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization18 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Performance issues directly impact user engagement and conversion rates.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading3 fonts (23 KB)PASS
Web fonts
3
23 KB total
Render-blocking
0
of 3
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
Network Waterfall103 requests over 5252msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.fotor.com www.fotor.com | Other | 937ms | 40 KB | — | €15/mo | Costly |
Unattributable Unattributable | Other | 191ms | 0 KB | — | €3/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 184ms | 154 KB | 42% | €3/mo | Optional |
pub-static.fotor.com pub-static.fotor.com | Other | 180ms | 474 KB | 52% | €3/mo | Optional |
static.fotor.com static.fotor.com | Other | 160ms | 11 KB | — | €3/mo | Optional |
static.fotor.com static.fotor.com | Other | 136ms | 495 KB | 12% | €2/mo | Optional |
static.fotor.com static.fotor.com | Other | 122ms | 3 KB | — | €2/mo | Optional |
Stripe js.stripe.com | Payment | 119ms | 221 KB | 67% | €2/mo | Essential |
Microsoft Clarity scripts.clarity.ms | Session Replay | 117ms | 26 KB | — | €2/mo | Optional |
pub-static.fotor.com pub-static.fotor.com | Other | 111ms | 555 KB | 31% | €2/mo | Optional |
pub-static.fotor.com pub-static.fotor.com | Other | 107ms | 222 KB | 40% | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 102ms | 169 KB | 41% | €2/mo | Optional |
These scripts may cost more than they're worth
- www.fotor.com adds 937ms and costs ~€15/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
www.fotor.com takes 937ms 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
52% of pub-static.fotor.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
67% of Stripe'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