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.
993 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.72 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
24 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.004
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.44 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.
3.88 s
Page Load Progression
FPage Weight BudgetAction5.4 MB transferred, 53 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 BundlesAction16 scripts, 972 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://guide.loyalhealth.com/client/7.client.bundle.js | 887 KB | 525 KB (59%) | ✓ | 3rd |
| https://cform.loyalhealth.com/app-961-6a80bf7fc23a9a39e48a.js | 121 KB | 101 KB (84%) | ✓ | 3rd |
| https://guide.loyalhealth.com/client/6.client.bundle.js | 141 KB | 73 KB (52%) | ✓ | 3rd |
| https://www.googleoptimize.com/optimize.js?id=OPT-TT2KT8D | 109 KB | 68 KB (63%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-YLG8SJ3WGG&cx=c>m=4e64k1 | 165 KB | 67 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PSRXC9B | 165 KB | 63 KB (38%) | ✓ | 3rd |
| https://www.ohsu.edu/sites/default/files/js/js_Cl2CpFEJNF056F8Jw7W9oV7-bQoIX11LwrzW71UfUlI.js?scope=footer&delta=0&language=en&theme=ohsu_digs&include=eJx1zEEKwzAMRNELVeRIRnUmisD2GFsOOX67Ktl0-_h8nnOl3W1uh0re24s_sMK3lgfQlxhpBRJqUrWpYTyC6QHx2gcvCO7AaN_BhI58Ju2edAUzay8IbH_8AytCOSY | 50 KB | 31 KB (61%) | ✓ | 3rd |
| https://cform.loyalhealth.com/app-912-6a80bf7fc23a9a39e48a.js | 37 KB | 23 KB (61%) | ✓ | 3rd |
| https://guide.loyalhealth.com/client/client.bundle.js | 49 KB | 20 KB (42%) | ✓ | 3rd |
| https://siteimproveanalytics.com/js/siteanalyze_66356641.js | 21 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
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 InventoryAction53 resources · 5.4 MB · 972 KB savings availableFIX
~972.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 53 resources | 5.4 MiB | ||||||
CImage OptimizationAction8 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
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+JS Execution Cost434ms total JS executionPASS
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.ohsu.edu/ | 126ms | 3ms | 0ms | 3rd |
| https://cform.loyalhealth.com/app-48-6a80bf7fc23a9a39e48a.js | 97ms | 95ms | 0ms | 3rd |
| Unattributable | 77ms | 8ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PSRXC9B | 69ms | 56ms | 12ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-YLG8SJ3WGG&cx=c>m=4e64k1 | 64ms | 54ms | 10ms | 3rd |
A+Font Loading8 fonts (176 KB)PASS
Web fonts
8
176 KB total
Render-blocking
0
of 8
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
AHTTP Cachingmax-age=31536000 (52 weeks)PASS
max-age=31536000
| Directive | Value | Meaning |
|---|---|---|
| max-age | 31536000 | Cache for 52 weeks |
Network Waterfall53 requests over 2526msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.ohsu.edu www.ohsu.edu | Other | 126ms | 14 KB | — | $2/mo | Optional |
cform.loyalhealth.com cform.loyalhealth.com | Other | 97ms | 14 KB | — | $1/mo | Optional |
Unattributable Unattributable | Other | 77ms | 0 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 69ms | 165 KB | 38% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 64ms | 165 KB | 41% | $1/mo | Optional |
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