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.
1.81 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.20 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
252 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.
2.58 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.
4.23 s
Page Load Progression
FPage Weight BudgetAction7.4 MB transferred, 46 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS BundlesAction7 scripts, 822 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://static.remove.bg/remove-bg-web/77139bce0dcc0828bdade2e4110046e30e2c7d2b/vite/assets/application-a075360d.js | 922 KB | 600 KB (65%) | ✓ | 3rd |
| https://static.remove.bg/remove-bg-web/77139bce0dcc0828bdade2e4110046e30e2c7d2b/vite/assets/index-a57bbcdb.js | 198 KB | 121 KB (61%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-M192P4P037 | 165 KB | 65 KB (39%) | ✓ | 3rd |
| https://script.hotjar.com/modules.6a0f3932cb1341a35c18.js | 57 KB | 36 KB (65%) | ✓ | 3rd |
| https://static.remove.bg/remove-bg-web/77139bce0dcc0828bdade2e4110046e30e2c7d2b/vite/assets/index-16bf3206.js | 1 KB | — | ✓ | 3rd |
| https://static.hotjar.com/c/hotjar-1304470.js?sv=6 | 7 KB | — | ✓ | 3rd |
| https://script.hotjar.com/browser-perf.8417c6bba72228fa2e29.js | 2 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
FPage Weight InventoryAction46 resources · 7.4 MB · 822 KB savings availableFIX
~821.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 46 resources | 7.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction19 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Performance issues directly impact user engagement and conversion rates.
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CJS Execution CostAction1375ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://static.remove.bg/remove-bg-web/77139bce0dcc0828bdade2e4110046e30e2c7d2b/vite/assets/application-a075360d.js | 616ms | 575ms | 4ms | 3rd |
| Unattributable | 303ms | 3ms | 0ms | 3rd |
| https://www.remove.bg/ | 166ms | 3ms | 1ms | 3rd |
| https://static.remove.bg/remove-bg-web/77139bce0dcc0828bdade2e4110046e30e2c7d2b/vite/assets/index-a57bbcdb.js | 159ms | 38ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-M192P4P037 | 71ms | 50ms | 21ms | 3rd |
| https://script.hotjar.com/modules.6a0f3932cb1341a35c18.js | 60ms | 51ms | 6ms | 3rd |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading3 fonts (72 KB)PASS
Web fonts
3
72 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
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall46 requests over 2042msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
static.remove.bg static.remove.bg | Other | 616ms | 922 KB | 65% | лв15/mo | Costly |
Unattributable Unattributable | Other | 303ms | 0 KB | — | лв7/mo | Costly |
www.remove.bg www.remove.bg | Other | 166ms | 15 KB | — | лв4/mo | Optional |
static.remove.bg static.remove.bg | Other | 159ms | 198 KB | 61% | лв4/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 71ms | 165 KB | 39% | лв2/mo | Optional |
Hotjar script.hotjar.com | Session Replay | 60ms | 57 KB | 65% | лв1/mo | Optional |
These scripts may cost more than they're worth
- static.remove.bg adds 616ms and costs ~лв15/month
- Unattributable adds 303ms and costs ~лв7/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
static.remove.bg takes 616ms 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
65% of static.remove.bg'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
Unattributable takes 303ms 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
61% of static.remove.bg'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
65% 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