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.
6.55 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
18.02 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
8.92 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.150
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
10.45 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.
28.02 s
Page Load Progression
556 ms 1.1 s 1.7 s 2.2 s
2.8 s
3.3 s
3.9 s
4.4 sFPage Weight BudgetAction3.1 MB transferred, 194 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
FJS Execution CostAction17870ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.parallels.com/static/common/scripts/email-form/formio.full.min.js | 4922ms | 4006ms | 196ms | 3rd |
| https://www.parallels.com/ | 2370ms | 1412ms | 8ms | 3rd |
| https://cdn.optimizely.com/js/26796560052.js | 1711ms | 1545ms | 42ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KH8FLJ9>m=4e64h1h1 | 1324ms | 1272ms | 48ms | 3rd |
| Unattributable | 1271ms | 124ms | 0ms | 3rd |
| https://www.parallels.com/static/common/scripts/jquery-3.6.0.min.js | 838ms | 764ms | 8ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-565KQNW | 779ms | 640ms | 77ms | 3rd |
| https://www.parallels.com/static/pl/typo3conf/ext/parallels_geoip/country/country.js | 562ms | 561ms | 0ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202402.1.0/otBannerSdk.js | 366ms | 252ms | 41ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-36CP | 361ms | 307ms | 49ms | 3rd |
Showing top 10 of 33 scripts
FJS BundlesAction88 scripts, 779 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.parallels.com/static/common/scripts/email-form/formio.full.min.js | 424 KB | 245 KB (58%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-36CP | 161 KB | 67 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KH8FLJ9>m=4e64h1h1 | 141 KB | 67 KB (48%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-CEVYC7924W&cx=c>m=4e64h1 | 173 KB | 64 KB (37%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-1067174464&cx=c>m=4e64h1 | 145 KB | 60 KB (42%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js | 110 KB | 56 KB (52%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-565KQNW | 210 KB | 53 KB (25%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202402.1.0/otBannerSdk.js | 105 KB | 53 KB (50%) | ✓ | 3rd |
| https://cdn.optimizely.com/js/26796560052.js | 92 KB | 47 KB (52%) | ✓ | 3rd |
| https://script.hotjar.com/modules.6a0f3932cb1341a35c18.js | 57 KB | 36 KB (65%) | ✓ | 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 InventoryAction194 resources · 3.1 MB · 779 KB savings availableFIX
~778.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 194 resources | 3.1 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization29 images, 0 KB saveableREVIEW
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 Loading7 fonts (143 KB)PASS
Web fonts
7
143 KB total
Render-blocking
0
of 7
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 Hints18 hints, 0 missing preconnectsPASS
Current Resource Hints
18 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall194 requests over 6875msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.parallels.com www.parallels.com | Other | 4922ms | 424 KB | 58% | €85/mo | Costly |
www.parallels.com www.parallels.com | Other | 2370ms | 22 KB | — | €41/mo | Costly |
Optimizely cdn.optimizely.com | A/B Testing | 1711ms | 92 KB | 52% | €30/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 1324ms | 141 KB | 48% | €23/mo | Costly |
Unattributable Unattributable | Other | 1271ms | 0 KB | — | €22/mo | Costly |
www.parallels.com www.parallels.com | Other | 838ms | 30 KB | — | €15/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 779ms | 210 KB | 25% | €14/mo | Costly |
www.parallels.com www.parallels.com | Other | 562ms | 0 KB | — | €10/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 366ms | 105 KB | 50% | €6/mo | Essential |
Google Tag Manager www.googletagmanager.com | Tag Manager | 361ms | 161 KB | 42% | €6/mo | Costly |
analytics.tiktok.com analytics.tiktok.com | Other | 348ms | 110 KB | 52% | €6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 286ms | 173 KB | 37% | €5/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 270ms | 97 KB | 32% | €5/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 253ms | 26 KB | — | €4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 230ms | 145 KB | 42% | €4/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 201ms | 46 KB | — | €3/mo | Costly |
Hotjar script.hotjar.com | Session Replay | 191ms | 57 KB | 65% | €3/mo | Optional |
LinkedIn Insight snap.licdn.com | Advertising | 137ms | 19 KB | — | €2/mo | Optional |
cdn.taboola.com cdn.taboola.com | Other | 136ms | 27 KB | — | €2/mo | Optional |
www.parallels.com www.parallels.com | Other | 126ms | 0 KB | — | €2/mo | Optional |
a.opmnstr.com a.opmnstr.com | Other | 126ms | 16 KB | — | €2/mo | Optional |
d.impactradius-event.com d.impactradius-event.com | Other | 123ms | 20 KB | — | €2/mo | Optional |
a.opmnstr.com a.opmnstr.com | Other | 121ms | 2 KB | — | €2/mo | Optional |
a.opmnstr.com a.opmnstr.com | Other | 118ms | 5 KB | — | €2/mo | Optional |
www.parallels.com www.parallels.com | Other | 114ms | 11 KB | — | €2/mo | Optional |
hm.baidu.com hm.baidu.com | Other | 113ms | 14 KB | — | €2/mo | Optional |
www.redditstatic.com www.redditstatic.com | Other | 107ms | 19 KB | — | €2/mo | Optional |
Bing UET bat.bing.com | Advertising | 90ms | 16 KB | — | €2/mo | Optional |
a.opmnstr.com a.opmnstr.com | Other | 60ms | 15 KB | — | €1/mo | Optional |
www.parallels.com www.parallels.com | Other | 58ms | 1 KB | — | €1/mo | Optional |
Twitter/X Pixel static.ads-twitter.com | Advertising | 55ms | 13 KB | — | €1/mo | Optional |
analytics.tiktok.com analytics.tiktok.com | Other | 54ms | 40 KB | — | €1/mo | Optional |
a.opmnstr.com a.opmnstr.com | Other | 51ms | 2 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.parallels.com adds 4922ms and costs ~€85/month
- www.parallels.com adds 2370ms and costs ~€41/month
- Optimizely adds 1711ms and costs ~€30/month
- Google Tag Manager adds 1324ms and costs ~€23/month
- Unattributable adds 1271ms and costs ~€22/month
- www.parallels.com adds 838ms and costs ~€15/month
- Google Tag Manager adds 779ms and costs ~€14/month
- www.parallels.com adds 562ms and costs ~€10/month
- Google Tag Manager adds 361ms and costs ~€6/month
- analytics.tiktok.com adds 348ms and costs ~€6/month
- Google Tag Manager adds 286ms and costs ~€5/month
- Facebook Pixel adds 270ms and costs ~€5/month
- Microsoft Clarity adds 253ms and costs ~€4/month
- Google Tag Manager adds 230ms and costs ~€4/month
- Facebook Pixel adds 201ms 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.parallels.com takes 4922ms 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
58% of www.parallels.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
www.parallels.com takes 2370ms 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
Optimizely takes 1711ms 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 Optimizely'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
Google Tag Manager takes 1324ms 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 1271ms 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.parallels.com takes 838ms 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 779ms 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.parallels.com takes 562ms 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
50% of OneTrust'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
Google Tag Manager takes 361ms 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
analytics.tiktok.com takes 348ms 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 analytics.tiktok.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
Google Tag Manager takes 286ms 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
Facebook Pixel takes 270ms 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 253ms 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 230ms 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
Facebook Pixel takes 201ms 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 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