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.
3.42 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
8.81 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
736 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.020
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.64 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.
8.81 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction2127ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://988lifeline.org/ | 564ms | 52ms | 8ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-SK9V65XQ5R&cx=c>m=4e64k0 | 383ms | 321ms | 60ms | 3rd |
| https://988lifeline.org/cdn-cgi/challenge-platform/scripts/jsd/main.js | 326ms | 267ms | 2ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5RXJ9L5P | 252ms | 184ms | 66ms | 3rd |
| Unattributable | 229ms | 6ms | 0ms | 3rd |
| https://giving.classy.org/embedded/api/sdk/js/85029 | 172ms | 130ms | 37ms | 3rd |
| https://988lifeline.org/wp-content/plugins/mxwes/assets/build/js/mxw_es_frontend.min.js?ver=12.19.24 | 126ms | 77ms | 10ms | 3rd |
| https://988lifeline.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 75ms | 59ms | 8ms | 3rd |
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CJS BundlesAction10 scripts, 187 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-SK9V65XQ5R&cx=c>m=4e64k0 | 174 KB | 71 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5RXJ9L5P | 123 KB | 63 KB (51%) | ✓ | 3rd |
| https://giving.classy.org/embedded/api/sdk/js/85029 | 80 KB | 53 KB (66%) | ✓ | 3rd |
| https://988lifeline.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 31 KB | — | ✓ | 3rd |
| https://988lifeline.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1 | 5 KB | — | ✓ | 3rd |
| https://988lifeline.org/wp-content/plugins/mxwes/assets/js/new_window_alert.js?ver=05.29.22 | 1 KB | — | ✓ | 3rd |
| https://988lifeline.org/wp-content/plugins/mxwes/assets/js/alert_bar.js?ver=06.28.19 | 1 KB | — | ✓ | 3rd |
| https://988lifeline.org/wp-content/plugins/mxwes/assets/build/js/mxw_es_frontend.min.js?ver=12.19.24 | 21 KB | — | ✓ | 3rd |
| https://988lifeline.org/wp-content/themes/beast/assets/build/js/scripts.min.js?ver=07.15.24 | 0 KB | — | ✓ | 3rd |
| https://988lifeline.org/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js? | 11 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
APage Weight Budget844 KB transferred, 27 requestsPASS
A+Text CompressionAll text resources are compressedPASS
AImage Optimization4 images, 0 KB saveablePASS
A+Font Loading2 fonts (50 KB)PASS
Web fonts
2
50 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 Hints2 hints, 0 missing preconnectsPASS
Current Resource Hints
2 resource hints configured
APage Weight Inventory27 resources · 844 KB · 187 KB savings availablePASS
~186.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 27 resources | 843.8 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall27 requests over 785msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
988lifeline.org 988lifeline.org | Other | 564ms | 42 KB | — | $7/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 383ms | 174 KB | 41% | $5/mo | Costly |
988lifeline.org 988lifeline.org | Other | 326ms | 0 KB | — | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 252ms | 123 KB | 51% | $3/mo | Costly |
Unattributable Unattributable | Other | 229ms | 0 KB | — | $3/mo | Costly |
giving.classy.org giving.classy.org | Other | 172ms | 80 KB | 66% | $2/mo | Optional |
988lifeline.org 988lifeline.org | Other | 126ms | 21 KB | — | $2/mo | Optional |
988lifeline.org 988lifeline.org | Other | 75ms | 31 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- 988lifeline.org adds 564ms and costs ~$7/month
- Google Tag Manager adds 383ms and costs ~$5/month
- 988lifeline.org adds 326ms and costs ~$4/month
- Google Tag Manager adds 252ms and costs ~$3/month
- Unattributable adds 229ms and costs ~$3/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
988lifeline.org takes 564ms 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 383ms 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
988lifeline.org takes 326ms 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 252ms 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 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
Unattributable takes 229ms 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
66% of giving.classy.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