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.
3.51 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.71 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
370 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.061
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.51 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.
7.50 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS BundlesAction19 scripts, 196 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=UA-159053390-1 | 125 KB | 64 KB (51%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-HV5N6EP1T4&cx=c>m=4e64h1 | 148 KB | 63 KB (42%) | ✓ | 3rd |
| https://embed.ly/static/scripts/vendor/foundation/foundation.min.js?v=efaed291b94a8939b5914655838d9ba1 | 45 KB | 35 KB (78%) | ✗ | 3rd |
| https://cdn.optimizely.com/js/929012.js | 63 KB | 35 KB (56%) | ✓ | 3rd |
| https://embed.ly/static/scripts/vendor/jquery.embedly-3.1.1.min.js?v=4b29304659f215cf01856142e35f26f4 | 3 KB | — | ✓ | 3rd |
| https://embed.ly/static/scripts/vendor/colors.js?v=510b4a32a3ea5829614acf2da82cc60e | 3 KB | — | ✓ | 3rd |
| https://embed.ly/static/scripts/utils.js?v=237e10668c683e8f41d3e40dcad7ce1a | 1 KB | — | ✓ | 3rd |
| https://embed.ly/static/scripts/tracking.js?v=28c6522730b3286f167793ee4d22543b | 1 KB | — | ✓ | 3rd |
| https://embed.ly/static/scripts/vendor/modernizr.foundation.js?v=9f855c3ee731604cad22f5ee7047033f | 4 KB | — | ✓ | 3rd |
| https://embed.ly/static/scripts/vendor/sprintf-0.7-beta1.js?v=2ad4a4b3b4c5f19bb3b39595d865a679 | 3 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
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction26 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
CJS Execution CostAction1938ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 397ms | 83ms | 0ms | 3rd |
| https://embed.ly/ | 368ms | 6ms | 3ms | 3rd |
| https://embed.ly/static/scripts/vendor/foundation/foundation.min.js?v=efaed291b94a8939b5914655838d9ba1 | 358ms | 118ms | 25ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-HV5N6EP1T4&cx=c>m=4e64h1 | 249ms | 171ms | 55ms | 3rd |
| https://cdn.optimizely.com/js/929012.js | 207ms | 113ms | 22ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=UA-159053390-1 | 187ms | 141ms | 44ms | 3rd |
| https://www.google-analytics.com/analytics.js | 94ms | 64ms | 23ms | 3rd |
| https://embed.ly/static/scripts/vendor/jquery.js?v=8dc163c822c3bfa264f8a282be2c6ef5 | 78ms | 62ms | 11ms | 3rd |
APage Weight Budget1.0 MB transferred, 59 requestsPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (132 KB)PASS
Web fonts
4
132 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
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- 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 ~40 KB and ~80 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
APage Weight Inventory59 resources · 1.0 MB · 196 KB savings availablePASS
~196.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 59 resources | 1.0 MiB | ||||||
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 Waterfall59 requests over 1528msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 397ms | 0 KB | — | $7/mo | Costly |
embed.ly embed.ly | Other | 368ms | 6 KB | — | $7/mo | Costly |
embed.ly embed.ly | Other | 358ms | 45 KB | 78% | $7/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 249ms | 148 KB | 42% | $5/mo | Costly |
Optimizely cdn.optimizely.com | A/B Testing | 207ms | 63 KB | 56% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 187ms | 125 KB | 51% | $4/mo | Optional |
Google Analytics www.google-analytics.com | Analytics | 94ms | 21 KB | — | $2/mo | Optional |
embed.ly embed.ly | Other | 78ms | 33 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 397ms and costs ~$7/month
- embed.ly adds 368ms and costs ~$7/month
- embed.ly adds 358ms and costs ~$7/month
- Google Tag Manager adds 249ms and costs ~$5/month
- Optimizely adds 207ms and costs ~$4/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
Unattributable takes 397ms 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
embed.ly takes 368ms 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
embed.ly takes 358ms 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 embed.ly'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
Google Tag Manager takes 249ms 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
Optimizely takes 207ms 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
56% of Optimizely'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
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