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.
1.31 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.86 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
33 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.495
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.
3.66 s
Page Load Progression
FPage Weight BudgetAction10.7 MB transferred, 87 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 BundlesAction36 scripts, 508 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js | 257 KB | 117 KB (46%) | ✓ | 3rd |
| https://www.blackberry.com/_next/static/chunks/16de241f-1f15cdf93fa5ee6b.js | 123 KB | 96 KB (78%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KXKJ3PRQ | 167 KB | 77 KB (46%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-FW4WNKQ41F&cx=c>m=4e64h1h1 | 174 KB | 72 KB (41%) | ✓ | 3rd |
| https://cdn.weglot.com/weglot.min.js?api_key=wg_8c81b3c5f1de49e34f6b70ee6c90b3cb6 | 71 KB | 30 KB (43%) | ✓ | 3rd |
| https://www.blackberry.com/_next/static/chunks/1409-6e49be62389ed47e.js | 32 KB | 25 KB (80%) | ✓ | 3rd |
| https://www.blackberry.com/_next/static/chunks/1255-31341e05e682b6b5.js | 64 KB | 24 KB (38%) | ✓ | 3rd |
| https://www.blackberry.com/_next/static/chunks/4bd1b696-182b6b13bdad92e3.js | 77 KB | 23 KB (30%) | ✓ | 3rd |
| https://www.blackberry.com/_next/static/chunks/4861-772881d7cf07b75f.js | 34 KB | 22 KB (68%) | ✓ | 3rd |
| https://www.blackberry.com/_next/static/chunks/1433-ffc9948232edb150.js | 38 KB | 22 KB (59%) | ✓ | 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 InventoryAction87 resources · 10.7 MB · 508 KB savings availableFIX
~508.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 87 resources | 10.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CJS Execution CostAction1342ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 472ms | 124ms | 0ms | 3rd |
| https://www.blackberry.com/en | 308ms | 34ms | 126ms | 3rd |
| https://www.blackberry.com/_next/static/chunks/1255-31341e05e682b6b5.js | 192ms | 172ms | 3ms | 3rd |
| https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js | 120ms | 84ms | 34ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KXKJ3PRQ | 73ms | 60ms | 13ms | 3rd |
| https://cdn.weglot.com/weglot.min.js?api_key=wg_8c81b3c5f1de49e34f6b70ee6c90b3cb6 | 63ms | 56ms | 7ms | 3rd |
| https://www.blackberry.com/_next/static/chunks/app/%5B%5B...slug%5D%5D/not-found-b950534ad7d36103.js | 57ms | 57ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-FW4WNKQ41F&cx=c>m=4e64h1h1 | 57ms | 47ms | 9ms | 3rd |
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
AImage Optimization11 images, 0 KB saveablePASS
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
A+Font Loading2 fonts (80 KB)PASS
Web fonts
2
80 KB total
Render-blocking
0
of 2
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
Network Waterfall87 requests over 3988msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 472ms | 0 KB | — | CA$7/mo | Costly |
www.blackberry.com www.blackberry.com | Other | 308ms | 137 KB | — | CA$4/mo | Costly |
www.blackberry.com www.blackberry.com | Other | 192ms | 64 KB | 38% | CA$3/mo | Optional |
cdn.ketchjs.com cdn.ketchjs.com | Other | 120ms | 257 KB | 46% | CA$2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 73ms | 167 KB | 46% | CA$1/mo | Optional |
cdn.weglot.com cdn.weglot.com | Other | 63ms | 71 KB | 43% | CA$1/mo | Optional |
www.blackberry.com www.blackberry.com | Other | 57ms | 2 KB | — | CA$1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 57ms | 174 KB | 41% | CA$1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 472ms and costs ~CA$7/month
- www.blackberry.com adds 308ms and costs ~CA$4/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
Unattributable takes 472ms 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.blackberry.com takes 308ms 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