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.
824 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.42 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
73 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.003
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.14 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.
2.94 s
Page Load Progression
DPage Weight BudgetAction2.2 MB transferred, 97 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS BundlesAction65 scripts, 819 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 187 KB | 134 KB (72%) | ✓ | 3rd |
| https://8ktdwatidwku9hlqf.ay.delivery/floorPrice/8kTDwaTidwKu9HLqf/js/floorPrice/linreg.min.js | 138 KB | 134 KB (97%) | ✓ | 3rd |
| https://8ktdwatidwku9hlqf.ay.delivery/manager-script/8kTDwaTidwKu9HLqf.splitTest.1?v=NcFrBumvAezXqHLwC | 139 KB | 105 KB (76%) | ✓ | 3rd |
| https://cdn.confiant-integrations.net/gptprebidnative/202603241056/wrap.js | 142 KB | 86 KB (61%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-SKF9LKC2Y9&cx=c>m=4e64h1 | 161 KB | 69 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TKXXCP7 | 161 KB | 68 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-SHH63V4WMH&cx=c>m=4e64h1 | 151 KB | 64 KB (42%) | ✓ | 3rd |
| https://privacy.reverso.net/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 102 KB | 45 KB (44%) | ✓ | 3rd |
| https://fundingchoicesmessages.google.com/i/76043757?ers=3 | 70 KB | 37 KB (54%) | ✓ | 3rd |
| https://8ktdwatidwku9hlqf.ay.delivery/manager-script/yield-manager-script-v3.11.1-prod | 49 KB | 34 KB (70%) | ✓ | 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 InventoryAction97 resources · 2.2 MB · 819 KB savings availableFIX
~818.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 97 resources | 2.2 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BJS Execution Cost784ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.reverso.net/resources/3.2.3/chunk-TDDHOP74.js | 212ms | 177ms | 0ms | 3rd |
| Unattributable | 168ms | 32ms | 0ms | 3rd |
| https://www.reverso.net/text-translation | 117ms | 10ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TKXXCP7 | 85ms | 69ms | 9ms | 3rd |
| https://cdn.confiant-integrations.net/gptprebidnative/202603241056/wrap.js | 78ms | 70ms | 8ms | 3rd |
| https://privacy.reverso.net/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 73ms | 63ms | 8ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 51ms | 40ms | 10ms | 3rd |
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization3 images, 0 KB saveablePASS
A+Font Loading4 fonts (58 KB)PASS
Web fonts
4
58 KB total
Render-blocking
0
of 4
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 Waterfall97 requests over 2477msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.reverso.net www.reverso.net | Other | 212ms | 72 KB | 29% | $3/mo | Costly |
Unattributable Unattributable | Other | 168ms | 0 KB | — | $2/mo | Optional |
www.reverso.net www.reverso.net | Other | 117ms | 43 KB | — | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 85ms | 161 KB | 43% | $1/mo | Optional |
cdn.confiant-integrations.net cdn.confiant-integrations.net | Other | 78ms | 142 KB | 61% | $1/mo | Optional |
privacy.reverso.net privacy.reverso.net | Other | 73ms | 102 KB | 44% | $1/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 51ms | 187 KB | 72% | $1/mo | Optional |
These scripts may cost more than they're worth
- www.reverso.net adds 212ms and costs ~$3/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.reverso.net takes 212ms 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 cdn.confiant-integrations.net'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
72% of securepubads.g.doubleclick.net'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