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.
4.02 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
57.85 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.59 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.014
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
6.97 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.
58.92 s
Page Load Progression
FPage Weight BudgetAction39.2 MB transferred, 135 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
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
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 ImpactAction67% third-party, 0 ms blockingFIX
FJS Execution CostAction6496ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 2311ms | 87ms | 0ms | 3rd |
| https://uwo.ca/ | 618ms | 8ms | 3ms | 1st |
| https://script.hotjar.com/modules.6a0f3932cb1341a35c18.js | 498ms | 451ms | 22ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-NSQ7S5 | 404ms | 325ms | 57ms | 3rd |
| https://www.redditstatic.com/ads/pixel.js | 400ms | 366ms | 5ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-706260770&cx=c>m=4e64h1 | 292ms | 249ms | 33ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7JYBYP2XMQ&cx=c>m=4e64h1 | 263ms | 218ms | 43ms | 3rd |
| https://code.jquery.com/jquery-3.6.4.min.js | 261ms | 168ms | 6ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PZZF7K23 | 250ms | 211ms | 36ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-VGHVYS95BH&cx=c>m=4e64h1 | 247ms | 175ms | 35ms | 3rd |
Showing top 10 of 17 scripts
FJS BundlesAction29 scripts, 650 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-NSQ7S5 | 168 KB | 73 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7JYBYP2XMQ&cx=c>m=4e64h1 | 174 KB | 71 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-829708219&cx=c>m=4e64k0h2 | 134 KB | 67 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-VYE7W4Q940&cx=c>m=4e64k0h2 | 156 KB | 66 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-VGHVYS95BH&cx=c>m=4e64h1 | 158 KB | 65 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PZZF7K23 | 150 KB | 63 KB (42%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js | 122 KB | 62 KB (52%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-706260770&cx=c>m=4e64h1 | 145 KB | 56 KB (38%) | ✓ | 3rd |
| https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.5/jquery-ui.min.js | 50 KB | 45 KB (91%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 34 KB (35%) | ✓ | 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 InventoryAction135 resources · 39.2 MB · 650 KB savings availableFIX
~650.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 135 resources | 39.2 MiB | ||||||
DHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction54 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
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
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
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
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 Loading4 fonts (340 KB)PASS
Web fonts
4
340 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- 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 ~173 KB and ~346 ms
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
Network Waterfall135 requests over 7218msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 2311ms | 0 KB | — | CA$32/mo | Costly |
Hotjar script.hotjar.com | Session Replay | 498ms | 57 KB | 49% | CA$7/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 404ms | 168 KB | 44% | CA$6/mo | Costly |
www.redditstatic.com www.redditstatic.com | Other | 400ms | 19 KB | — | CA$6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 292ms | 145 KB | 38% | CA$4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 263ms | 174 KB | 41% | CA$4/mo | Costly |
code.jquery.com code.jquery.com | Other | 261ms | 31 KB | — | CA$4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 250ms | 150 KB | 42% | CA$3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 247ms | 158 KB | 41% | CA$3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 215ms | 156 KB | 42% | CA$3/mo | Costly |
analytics.tiktok.com analytics.tiktok.com | Other | 202ms | 122 KB | 52% | CA$3/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 144ms | 97 KB | 35% | CA$2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 131ms | 134 KB | 50% | CA$2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 104ms | 45 KB | — | CA$1/mo | Optional |
sc-static.net sc-static.net | Other | 104ms | 25 KB | — | CA$1/mo | Optional |
Twitter/X Pixel static.ads-twitter.com | Advertising | 54ms | 13 KB | — | CA$1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 2311ms and costs ~CA$32/month
- Hotjar adds 498ms and costs ~CA$7/month
- Google Tag Manager adds 404ms and costs ~CA$6/month
- www.redditstatic.com adds 400ms and costs ~CA$6/month
- Google Tag Manager adds 292ms and costs ~CA$4/month
- Google Tag Manager adds 263ms and costs ~CA$4/month
- code.jquery.com adds 261ms and costs ~CA$4/month
- Google Tag Manager adds 250ms and costs ~CA$3/month
- Google Tag Manager adds 247ms and costs ~CA$3/month
- Google Tag Manager adds 215ms and costs ~CA$3/month
- analytics.tiktok.com adds 202ms and costs ~CA$3/month
90% 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 2311ms 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
Hotjar takes 498ms 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 404ms 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.redditstatic.com takes 400ms 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 263ms 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
code.jquery.com takes 261ms 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 250ms 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 247ms 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 215ms 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 202ms 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
50% of Google Tag Manager'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