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.
1.06 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.43 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
308 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.50 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.
6.23 s
Page Load Progression
FPage Weight BudgetAction3.3 MB transferred, 116 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 ImpactAction100% third-party, 0 ms blockingFIX
FJS BundlesAction31 scripts, 839 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://talkdeskchatsdk.talkdeskapp.com/talkdeskchatsdk.js | 432 KB | 247 KB (58%) | ✓ | 3rd |
| https://talkdeskchatsdk.talkdeskapp.com/516.talkdeskchatsdk.js | 225 KB | 100 KB (45%) | ✓ | 3rd |
| https://www.asha.org/bundles/asha/bottom-js?v=MmOt-yY7_ERTzZrMKrMPfEQ4G_whdesbTR8KgfZp4q41 | 108 KB | 94 KB (87%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-GXTN1JWTS1&l=improvedGA4dataLayer&cx=c>m=4e64k1 | 147 KB | 65 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-5LBB7X3QKK&l=improvedGA4dataLayer | 149 KB | 63 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-15233788&cx=c>m=4e64m0h2 | 129 KB | 61 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5MTTF8 | 177 KB | 59 KB (33%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1060506972&cx=c>m=4e64m0h2 | 144 KB | 56 KB (39%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 37 KB (38%) | ✓ | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 55 KB | 30 KB (54%) | ✓ | 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 InventoryAction116 resources · 3.3 MB · 839 KB savings availableFIX
~839.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 116 resources | 3.3 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction40 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
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
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
CJS Execution CostAction1707ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.asha.org/ | 253ms | 34ms | 4ms | 3rd |
| https://talkdeskchatsdk.talkdeskapp.com/talkdeskchatsdk.js | 217ms | 151ms | 62ms | 3rd |
| Unattributable | 211ms | 3ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5MTTF8 | 208ms | 176ms | 22ms | 3rd |
| https://talkdeskchatsdk.talkdeskapp.com/516.talkdeskchatsdk.js | 157ms | 116ms | 26ms | 3rd |
| https://www.asha.org/bundles/asha/js?v=tTzRr31Wi4Y-qPDmDAvIO8b-fVf61FnkZwbOP9nP2mk1 | 100ms | 72ms | 5ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1060506972&cx=c>m=4e64m0h2 | 90ms | 75ms | 13ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-5LBB7X3QKK&l=improvedGA4dataLayer | 85ms | 68ms | 14ms | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 80ms | 69ms | 6ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-GXTN1JWTS1&l=improvedGA4dataLayer&cx=c>m=4e64k1 | 75ms | 60ms | 14ms | 3rd |
Showing top 10 of 14 scripts
A+Text CompressionAll text resources are compressedPASS
A+Font Loading6 fonts (158 KB)PASS
Web fonts
6
158 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
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 ~17 KB and ~34 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall116 requests over 4902msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.asha.org www.asha.org | Other | 253ms | 21 KB | — | €3/mo | Costly |
talkdeskchatsdk.talkdeskapp.com talkdeskchatsdk.talkdeskapp.com | Other | 217ms | 432 KB | 58% | €2/mo | Costly |
Unattributable Unattributable | Other | 211ms | 0 KB | — | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 208ms | 177 KB | 33% | €2/mo | Costly |
talkdeskchatsdk.talkdeskapp.com talkdeskchatsdk.talkdeskapp.com | Other | 157ms | 225 KB | 45% | €2/mo | Optional |
www.asha.org www.asha.org | Other | 100ms | 56 KB | 51% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 90ms | 144 KB | 39% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 85ms | 149 KB | 42% | €1/mo | Optional |
script.crazyegg.com script.crazyegg.com | Other | 80ms | 55 KB | 54% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 75ms | 147 KB | 44% | €1/mo | Optional |
Microsoft Clarity scripts.clarity.ms | Session Replay | 65ms | 26 KB | — | €1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 59ms | 97 KB | 38% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 54ms | 129 KB | 47% | €1/mo | Optional |
www.asha.org www.asha.org | Other | 54ms | 23 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.asha.org adds 253ms and costs ~€3/month
- talkdeskchatsdk.talkdeskapp.com adds 217ms and costs ~€2/month
- Unattributable adds 211ms and costs ~€2/month
- Google Tag Manager adds 208ms and costs ~€2/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.asha.org 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
talkdeskchatsdk.talkdeskapp.com takes 217ms 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 talkdeskchatsdk.talkdeskapp.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
Unattributable takes 211ms 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 208ms 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.asha.org'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
54% of script.crazyegg.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