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.
2.70 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.94 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.69 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.900
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
5.25 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.
29.66 s
Page Load Progression
747 ms
1.5 s
2.2 s
3.0 s 3.7 s
4.5 s
5.2 s
6.0 sFPage Weight BudgetAction13.6 MB transferred, 143 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
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
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 ImpactAction90% third-party, 0 ms blockingFIX
FJS Execution CostAction4853ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 981ms | 115ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-MH632FV | 758ms | 660ms | 76ms | 3rd |
| https://carleton.ca/ | 398ms | 14ms | 2ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-GPRE4N72YN&cx=c>m=4e64k0 | 292ms | 217ms | 71ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-BDW6WNFPJQ&cx=c>m=4e64k0 | 283ms | 241ms | 39ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-922400606&cx=c>m=4e64k0 | 275ms | 205ms | 31ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-9NTBQTVYKG&cx=c>m=4e64k0 | 239ms | 204ms | 34ms | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js | 233ms | 192ms | 36ms | 3rd |
| https://scripts.clarity.ms/0.8.59/clarity.js | 218ms | 195ms | 6ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-489059193&cx=c>m=4e64k0 | 212ms | 165ms | 46ms | 3rd |
Showing top 10 of 18 scripts
FJS BundlesAction44 scripts, 632 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js | 110 KB | 85 KB (78%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-BDW6WNFPJQ&cx=c>m=4e64k0 | 177 KB | 69 KB (39%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-489059193&cx=c>m=4e64k0 | 144 KB | 69 KB (48%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-9NTBQTVYKG&cx=c>m=4e64k0 | 157 KB | 66 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-GPRE4N72YN&cx=c>m=4e64k0 | 151 KB | 64 KB (42%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js | 122 KB | 63 KB (52%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-513270063&cx=c>m=4e64k0 | 134 KB | 62 KB (46%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-MH632FV | 192 KB | 61 KB (32%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-922400606&cx=c>m=4e64k0 | 147 KB | 61 KB (42%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 33 KB (34%) | ✓ | 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 InventoryAction143 resources · 13.6 MB · 632 KB savings availableFIX
~632.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 143 resources | 13.6 MiB | ||||||
BImage Optimization38 images, 0 KB saveableREVIEW
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
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 Loading2 fonts (73 KB)PASS
Web fonts
2
73 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 Hints5 hints, 0 missing preconnectsPASS
Current Resource Hints
5 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AHTTP Cachingmax-age=172800 (2 days)PASS
max-age=172800
| Directive | Value | Meaning |
|---|---|---|
| max-age | 172800 | Cache for 2 days |
Network Waterfall143 requests over 5191msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 981ms | 0 KB | — | CA$8/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 758ms | 192 KB | 32% | CA$6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 292ms | 151 KB | 42% | CA$2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 283ms | 177 KB | 39% | CA$2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 275ms | 147 KB | 42% | CA$2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 239ms | 157 KB | 42% | CA$2/mo | Costly |
analytics.tiktok.com analytics.tiktok.com | Other | 233ms | 122 KB | 52% | CA$2/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 218ms | 26 KB | — | CA$2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 212ms | 144 KB | 48% | CA$2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 204ms | 134 KB | 46% | CA$2/mo | Costly |
sc-static.net sc-static.net | Other | 157ms | 25 KB | — | CA$1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 147ms | 45 KB | — | CA$1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 143ms | 97 KB | 34% | CA$1/mo | Optional |
analytics.tiktok.com analytics.tiktok.com | Other | 112ms | 110 KB | 78% | CA$1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 75ms | 16 KB | — | CA$1/mo | Optional |
its-production.s3.amazonaws.com its-production.s3.amazonaws.com | Other | 64ms | 33 KB | — | CA$0/mo | Optional |
LinkedIn Insight snap.licdn.com | Advertising | 62ms | 19 KB | — | CA$0/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 981ms and costs ~CA$8/month
- Google Tag Manager adds 758ms and costs ~CA$6/month
- Google Tag Manager adds 292ms and costs ~CA$2/month
- Google Tag Manager adds 283ms and costs ~CA$2/month
- Google Tag Manager adds 275ms and costs ~CA$2/month
- Google Tag Manager adds 239ms and costs ~CA$2/month
- analytics.tiktok.com adds 233ms and costs ~CA$2/month
- Microsoft Clarity adds 218ms and costs ~CA$2/month
- Google Tag Manager adds 212ms and costs ~CA$2/month
- Google Tag Manager adds 204ms and costs ~CA$2/month
92% 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 981ms 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 758ms 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 292ms 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 283ms 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 275ms 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 239ms 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 233ms 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
Microsoft Clarity takes 218ms 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 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
Google Tag Manager 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
78% 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