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.
3.24 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
12.02 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.53 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.019
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.64 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.
14.40 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction3569ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.reverso.net/resources/3.2.3/chunk-TDDHOP74.js | 675ms | 503ms | 1ms | 3rd |
| Unattributable | 629ms | 157ms | 0ms | 3rd |
| https://www.reverso.net/resources/3.2.3/chunk-JWJQFLWD.js | 328ms | 252ms | 0ms | 3rd |
| https://cdn.confiant-integrations.net/gptprebidnative/202603241056/wrap.js | 294ms | 265ms | 27ms | 3rd |
| https://privacy.reverso.net/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 264ms | 199ms | 37ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31098007 | 204ms | 160ms | 42ms | 3rd |
| https://fundingchoicesmessages.google.com/i/76043757?ers=3 | 177ms | 159ms | 16ms | 3rd |
| https://www.reverso.net/ | 150ms | 31ms | 2ms | 3rd |
| https://privacy.reverso.net/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/ui-web-en-web.22ecd6bfac93de604efec0b75b2c796ee1675f92.js | 144ms | 89ms | 20ms | 3rd |
| https://8ktdwatidwku9hlqf.ay.delivery/manager-script/8kTDwaTidwKu9HLqf.splitTest.0?v=RdHANspahKpJnXm2A | 125ms | 96ms | 28ms | 3rd |
Showing top 10 of 17 scripts
FJS BundlesAction61 scripts, 624 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31098007 | 188 KB | 136 KB (73%) | ✓ | 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.0?v=RdHANspahKpJnXm2A | 137 KB | 104 KB (76%) | ✓ | 3rd |
| https://cdn.confiant-integrations.net/gptprebidnative/202603241056/wrap.js | 142 KB | 86 KB (61%) | ✓ | 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 | 35 KB (72%) | ✓ | 3rd |
| https://www.reverso.net/resources/3.2.3/chunk-TDDHOP74.js | 72 KB | 24 KB (33%) | ✓ | 3rd |
| https://8ktdwatidwku9hlqf.ay.delivery/client-v2.js | 36 KB | 22 KB (63%) | ✓ | 3rd |
| https://www.reverso.net/resources/3.2.3/chunk-LXU6PPBH.js | 34 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
FPage Weight InventoryAction91 resources · 1.7 MB · 624 KB savings availableFIX
~623.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 91 resources | 1.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction1.7 MB transferred, 91 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
A+Text CompressionAll text resources are compressedPASS
AImage Optimization4 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+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall91 requests over 2566msINFO
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 | 675ms | 72 KB | 33% | $9/mo | Costly |
Unattributable Unattributable | Other | 629ms | 0 KB | — | $8/mo | Costly |
www.reverso.net www.reverso.net | Other | 328ms | 10 KB | — | $4/mo | Costly |
cdn.confiant-integrations.net cdn.confiant-integrations.net | Other | 294ms | 142 KB | 61% | $4/mo | Costly |
privacy.reverso.net privacy.reverso.net | Other | 264ms | 102 KB | 44% | $4/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 204ms | 188 KB | 73% | $3/mo | Costly |
fundingchoicesmessages.google.com fundingchoicesmessages.google.com | Other | 177ms | 70 KB | 54% | $2/mo | Optional |
www.reverso.net www.reverso.net | Other | 150ms | 3 KB | — | $2/mo | Optional |
privacy.reverso.net privacy.reverso.net | Other | 144ms | 53 KB | — | $2/mo | Optional |
8ktdwatidwku9hlqf.ay.delivery 8ktdwatidwku9hlqf.ay.delivery | Other | 125ms | 137 KB | 76% | $2/mo | Optional |
8ktdwatidwku9hlqf.ay.delivery 8ktdwatidwku9hlqf.ay.delivery | Other | 116ms | 49 KB | 72% | $2/mo | Optional |
8ktdwatidwku9hlqf.ay.delivery 8ktdwatidwku9hlqf.ay.delivery | Other | 89ms | 36 KB | 63% | $1/mo | Optional |
8ktdwatidwku9hlqf.ay.delivery 8ktdwatidwku9hlqf.ay.delivery | Other | 86ms | 138 KB | 97% | $1/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 81ms | 34 KB | — | $1/mo | Optional |
privacy.reverso.net privacy.reverso.net | Other | 74ms | 1 KB | — | $1/mo | Optional |
fundingchoicesmessages.google.com fundingchoicesmessages.google.com | Other | 74ms | 68 KB | — | $1/mo | Optional |
cdn.reverso.net cdn.reverso.net | Other | 58ms | 4 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.reverso.net adds 675ms and costs ~$9/month
- Unattributable adds 629ms and costs ~$8/month
- www.reverso.net adds 328ms and costs ~$4/month
- cdn.confiant-integrations.net adds 294ms and costs ~$4/month
- privacy.reverso.net adds 264ms and costs ~$4/month
- securepubads.g.doubleclick.net adds 204ms 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 675ms 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 629ms 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
www.reverso.net takes 328ms 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
cdn.confiant-integrations.net takes 294ms 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
privacy.reverso.net takes 264ms 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
securepubads.g.doubleclick.net takes 204ms 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
73% 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
54% of fundingchoicesmessages.google.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
76% of 8ktdwatidwku9hlqf.ay.delivery'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 8ktdwatidwku9hlqf.ay.delivery'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
63% of 8ktdwatidwku9hlqf.ay.delivery'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
97% of 8ktdwatidwku9hlqf.ay.delivery'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