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.
4.20 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
12.29 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3.37 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.106
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.88 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.
18.35 s
Page Load Progression
DPage Weight BudgetAction2.5 MB transferred, 95 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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction12066ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://players.brightcove.net/6415665063001/Vh8ALpkmx_default/index.min.js | 4120ms | 1028ms | 218ms | 3rd |
| Unattributable | 1389ms | 222ms | 0ms | 3rd |
| https://www.broadcom.com/products/cybersecurity | 1360ms | 94ms | 20ms | 3rd |
| https://www.broadcom.com/js/reactvendor.bundle.js?hash=ac801d0e85057d01cd98 | 1182ms | 70ms | 50ms | 3rd |
| https://www.broadcom.com/js/vendor.bundle.js?hash=b5fbdb84d775db0f7be9 | 953ms | 795ms | 35ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KF7XWD | 792ms | 548ms | 114ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202603.1.0/otBannerSdk.js | 632ms | 381ms | 84ms | 3rd |
| https://www.broadcom.com/js/3168.bundle.js?hash=8cae144fa526d70101d4 | 582ms | 467ms | 2ms | 3rd |
| https://www.broadcom.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 532ms | 439ms | 5ms | 3rd |
| https://www.broadcom.com/js/main.bundle.js?hash=af09ca2e611ce9ffeddd | 444ms | 370ms | 39ms | 3rd |
Showing top 10 of 11 scripts
DJS BundlesAction21 scripts, 344 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://players.brightcove.net/6415665063001/Vh8ALpkmx_default/index.min.js | 290 KB | 130 KB (45%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KF7XWD | 184 KB | 76 KB (42%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202603.1.0/otBannerSdk.js | 130 KB | 69 KB (53%) | ✓ | 3rd |
| https://www.broadcom.com/js/main.bundle.js?hash=af09ca2e611ce9ffeddd | 57 KB | 26 KB (45%) | ✓ | 3rd |
| https://www.broadcom.com/js/reactvendor.bundle.js?hash=ac801d0e85057d01cd98 | 71 KB | 22 KB (32%) | ✓ | 3rd |
| https://www.broadcom.com/js/vendor.bundle.js?hash=b5fbdb84d775db0f7be9 | 42 KB | 21 KB (51%) | ✓ | 3rd |
| https://images.sw.broadcom.com/Web/CAInc2/%7B58429d82-f905-426a-9ac4-f3449d253fe0%7D_blocked-emails.js | 25 KB | — | ✗ | 3rd |
| https://www.broadcom.com/js/9432.bundle.js?hash=a5bf827b08cb7cd5ec05 | 1 KB | — | ✓ | 3rd |
| https://www.broadcom.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js? | 11 KB | — | ✓ | 3rd |
| https://www.broadcom.com/js/1013.bundle.js?hash=2a9cf8632e29f2d66171 | 5 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 InventoryAction95 resources · 2.5 MB · 344 KB savings availableFIX
~344.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 95 resources | 2.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization17 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 Loading10 fonts (500 KB)PASS
Web fonts
10
500 KB total
Render-blocking
0
of 10
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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)
Fixing the unchecked items could save ~223 KB and ~446 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints26 hints, 0 missing preconnectsPASS
Current Resource Hints
26 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall95 requests over 4591msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
players.brightcove.net players.brightcove.net | Other | 4120ms | 290 KB | 45% | $55/mo | Costly |
Unattributable Unattributable | Other | 1389ms | 0 KB | — | $18/mo | Costly |
www.broadcom.com www.broadcom.com | Other | 1360ms | 14 KB | — | $18/mo | Costly |
www.broadcom.com www.broadcom.com | Other | 1182ms | 71 KB | 32% | $16/mo | Costly |
www.broadcom.com www.broadcom.com | Other | 953ms | 42 KB | 51% | $13/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 792ms | 184 KB | 42% | $11/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 632ms | 130 KB | 53% | $8/mo | Essential |
www.broadcom.com www.broadcom.com | Other | 582ms | 4 KB | — | $8/mo | Costly |
www.broadcom.com www.broadcom.com | Other | 532ms | 0 KB | — | $7/mo | Costly |
www.broadcom.com www.broadcom.com | Other | 444ms | 57 KB | 45% | $6/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 80ms | 9 KB | — | $1/mo | Essential |
These scripts may cost more than they're worth
- players.brightcove.net adds 4120ms and costs ~$55/month
- Unattributable adds 1389ms and costs ~$18/month
- www.broadcom.com adds 1360ms and costs ~$18/month
- www.broadcom.com adds 1182ms and costs ~$16/month
- www.broadcom.com adds 953ms and costs ~$13/month
- Google Tag Manager adds 792ms and costs ~$11/month
- www.broadcom.com adds 582ms and costs ~$8/month
- www.broadcom.com adds 532ms and costs ~$7/month
- www.broadcom.com adds 444ms and costs ~$6/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
players.brightcove.net takes 4120ms 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 1389ms 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.broadcom.com takes 1360ms 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.broadcom.com takes 1182ms 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.broadcom.com takes 953ms 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 www.broadcom.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 792ms 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
53% 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
www.broadcom.com takes 582ms 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.broadcom.com takes 532ms 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.broadcom.com takes 444ms 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