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.
11.33 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
15.52 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
590 ms
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.
11.33 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.
15.56 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction5172ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.fotor.com/ | 1678ms | 19ms | 2ms | 3rd |
| https://static.fotor.com/web/_next/static/chunks/pages/index-4d91a561b04dc2163e82.js | 1116ms | 708ms | 2ms | 3rd |
| https://static.fotor.com/web/_next/static/chunks/pages/_app-d872cc5ec68ef0b0462f.js | 533ms | 238ms | 295ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5763HM | 456ms | 359ms | 65ms | 3rd |
| Unattributable | 377ms | 9ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7HXB45DMZS&cx=c>m=4e64k1 | 346ms | 272ms | 71ms | 3rd |
| https://scripts.clarity.ms/0.8.59-beta/clarity.js | 272ms | 230ms | 11ms | 3rd |
| https://static.fotor.com/web/_next/static/chunks/5711d823-8e6d8a73ee5fe357e582.js | 141ms | 2ms | 82ms | 3rd |
| https://pub-static.fotor.com/static/web/lib/mobile-common/bundle.js | 131ms | 25ms | 15ms | 3rd |
| https://pub-static.fotor.com/static/web/lib/sensors/sensorsdata.min.js | 123ms | 94ms | 19ms | 3rd |
DJS BundlesAction31 scripts, 305 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://static.fotor.com/web/_next/static/chunks/5711d823-8e6d8a73ee5fe357e582.js | 185 KB | 94 KB (51%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7HXB45DMZS&cx=c>m=4e64k1 | 169 KB | 69 KB (41%) | ✓ | 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 | 38 KB | 21 KB (56%) | ✓ | 3rd |
| https://static.fotor.com/web/_next/static/chunks/3546-cabccbea7916e6662c9d.js | 4 KB | — | ✓ | 3rd |
| https://static.fotor.com/web/_next/static/chunks/1099-420452db4cc2453728f0.js | 29 KB | — | ✓ | 3rd |
| https://static.fotor.com/web/_next/static/chunks/main-97f5fe9be43a624845d7.js | 23 KB | — | ✓ | 3rd |
| https://static.fotor.com/web/_next/static/chunks/webpack-e02c4596c00be7fee68c.js | 11 KB | — | ✓ | 3rd |
| https://static.fotor.com/web/_next/static/chunks/8398.02ba170faad3306a21e7.js | 1 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
DPage Weight InventoryAction62 resources · 1.4 MB · 305 KB savings availableFIX
~305.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 62 resources | 1.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BPage Weight Budget1.4 MB transferred, 62 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
BImage Optimization14 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 Hints4 hints, 0 missing preconnectsPASS
Current Resource Hints
4 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall62 requests over 3003msINFO
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 | 1678ms | 38 KB | — | €27/mo | Costly |
static.fotor.com static.fotor.com | Other | 1116ms | 3 KB | — | €18/mo | Costly |
static.fotor.com static.fotor.com | Other | 533ms | 495 KB | 12% | €9/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 456ms | 154 KB | 42% | €7/mo | Costly |
Unattributable Unattributable | Other | 377ms | 0 KB | — | €6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 346ms | 169 KB | 41% | €6/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 272ms | 26 KB | — | €4/mo | Costly |
static.fotor.com static.fotor.com | Other | 141ms | 185 KB | 51% | €2/mo | Optional |
pub-static.fotor.com pub-static.fotor.com | Other | 131ms | 29 KB | — | €2/mo | Optional |
pub-static.fotor.com pub-static.fotor.com | Other | 123ms | 38 KB | 56% | €2/mo | Optional |
These scripts may cost more than they're worth
- www.fotor.com adds 1678ms and costs ~€27/month
- static.fotor.com adds 1116ms and costs ~€18/month
- static.fotor.com adds 533ms and costs ~€9/month
- Google Tag Manager adds 456ms and costs ~€7/month
- Unattributable adds 377ms and costs ~€6/month
- Google Tag Manager adds 346ms and costs ~€6/month
- Microsoft Clarity adds 272ms and costs ~€4/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 1678ms 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
static.fotor.com takes 1116ms 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
static.fotor.com takes 533ms 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 456ms 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 377ms 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 346ms 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 272ms 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 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
56% 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