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.
6.60 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
14.61 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.04 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
6.95 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.
16.58 s
Page Load Progression
375 ms 750 ms 1.1 s
1.5 s
1.9 s 2.2 s 2.6 s 3.0 sDThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction4336ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://fast.wistia.com/assets/external/E-v1.js | 1474ms | 1122ms | 92ms | 3rd |
| Unattributable | 990ms | 96ms | 0ms | 3rd |
| https://cookie-cdn.cookiepro.com/scripttemplates/202512.1.0/otBannerSdk.js | 287ms | 154ms | 61ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-VH90VGZ7YR&cx=c&_slc=1 | 257ms | 211ms | 44ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-875523944 | 228ms | 181ms | 38ms | 3rd |
| https://assets.adobedtm.com/764583179334/cc8234bc2247/launch-d5262cfabf77.min.js | 220ms | 185ms | 17ms | 3rd |
| https://www.pingdom.com/ | 190ms | 11ms | 3ms | 3rd |
| https://cdn.optimizely.com/js/5056361059319808.js | 188ms | 157ms | 27ms | 3rd |
| https://cookie-cdn.cookiepro.com/scripttemplates/otSDKStub.js | 123ms | 114ms | 2ms | 3rd |
| https://cdnjs.cloudflare.com/ajax/libs/gsap/3.6.1/gsap.min.js | 90ms | 34ms | 7ms | 3rd |
Showing top 10 of 14 scripts
DJS BundlesAction66 scripts, 485 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://fast.wistia.com/assets/external/engines/hls_video.js@379dc59f3883ecbd8a4ec99277538cfd8c619ee8 | 159 KB | 122 KB (77%) | ✓ | 3rd |
| https://fast.wistia.com/assets/external/E-v1.js | 162 KB | 70 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-VH90VGZ7YR&cx=c&_slc=1 | 167 KB | 69 KB (41%) | ✓ | 3rd |
| https://cookie-cdn.cookiepro.com/scripttemplates/202512.1.0/otBannerSdk.js | 126 KB | 67 KB (53%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-875523944 | 138 KB | 59 KB (43%) | ✓ | 3rd |
| https://cdn.optimizely.com/js/5056361059319808.js | 94 KB | 48 KB (52%) | ✓ | 3rd |
| https://fast.wistia.com/assets/external/captions.js | 43 KB | 29 KB (66%) | ✓ | 3rd |
| https://browser.sentry-cdn.com/9.6.1/bundle.min.js | 25 KB | 21 KB (86%) | ✓ | 3rd |
| https://www.pingdom.com/wp-content/themes/pingdom-2018/dev/scripts/sw19-use-cases.js?ver=1754550806 | 2 KB | — | ✓ | 3rd |
| https://www.pingdom.com/wp-content/themes/pingdom-2018/dev/scripts/image-modal.js?ver=1754550806 | 1 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 InventoryAction219 resources · 1.9 MB · 485 KB savings availableFIX
~484.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 219 resources | 1.9 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction1.9 MB transferred, 219 requestsREVIEW
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
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
BImage Optimization24 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
A+Text CompressionAll text resources are compressedPASS
A+Font Loading6 fonts (129 KB)PASS
Web fonts
6
129 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)
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
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall219 requests over 2974msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
fast.wistia.com fast.wistia.com | Other | 1474ms | 162 KB | 43% | $20/mo | Costly |
Unattributable Unattributable | Other | 990ms | 0 KB | — | $13/mo | Costly |
cookie-cdn.cookiepro.com cookie-cdn.cookiepro.com | Other | 287ms | 126 KB | 53% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 257ms | 167 KB | 41% | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 228ms | 138 KB | 43% | $3/mo | Costly |
assets.adobedtm.com assets.adobedtm.com | Other | 220ms | 41 KB | — | $3/mo | Costly |
www.pingdom.com www.pingdom.com | Other | 190ms | 29 KB | — | $3/mo | Optional |
Optimizely cdn.optimizely.com | A/B Testing | 188ms | 94 KB | 52% | $2/mo | Optional |
cookie-cdn.cookiepro.com cookie-cdn.cookiepro.com | Other | 123ms | 9 KB | — | $2/mo | Optional |
cdnjs cdnjs.cloudflare.com | CDN | 90ms | 22 KB | — | $1/mo | Optional |
fast.wistia.com fast.wistia.com | Other | 86ms | 43 KB | 66% | $1/mo | Optional |
fast.wistia.com fast.wistia.com | Other | 76ms | 159 KB | 77% | $1/mo | Optional |
Google Analytics www.google-analytics.com | Analytics | 73ms | 21 KB | — | $1/mo | Optional |
Twitter/X Embed platform.twitter.com | Social | 56ms | 0 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- fast.wistia.com adds 1474ms and costs ~$20/month
- Unattributable adds 990ms and costs ~$13/month
- cookie-cdn.cookiepro.com adds 287ms and costs ~$4/month
- Google Tag Manager adds 257ms and costs ~$3/month
- Google Tag Manager adds 228ms and costs ~$3/month
- assets.adobedtm.com adds 220ms 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
fast.wistia.com takes 1474ms 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
Unattributable takes 990ms 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
cookie-cdn.cookiepro.com takes 287ms 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
53% of cookie-cdn.cookiepro.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
Google Tag Manager takes 257ms 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 228ms 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
assets.adobedtm.com takes 220ms 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 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
66% of fast.wistia.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
77% of fast.wistia.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