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.
643 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.75 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
403 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.143
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.93 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.
7.36 s
Page Load Progression
476 ms
953 ms
1.4 s 1.9 s
2.4 s
2.9 s
3.3 s
3.8 sFPage Weight BudgetAction5.3 MB transferred, 184 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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
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
DJS Execution CostAction2751ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-KP8F3CX | 387ms | 326ms | 23ms | 3rd |
| https://www.goto.com/webinar | 369ms | 22ms | 2ms | 3rd |
| Unattributable | 342ms | 15ms | 0ms | 3rd |
| https://www.goto.com/_next/static/chunks/framework-de98b93a850cfc71.js | 289ms | 225ms | 6ms | 3rd |
| https://www.goto.com/_next/static/chunks/pages/_app-4988ce35afc0118b.js | 201ms | 161ms | 2ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6MMS07YSMJ&cx=c>m=4e64h1 | 167ms | 142ms | 22ms | 3rd |
| https://js.qualified.com/qualified.js?token=hUipxtRKEHpLVXaK | 147ms | 121ms | 11ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=DC-9294863&cx=c>m=4e64h1 | 115ms | 95ms | 19ms | 3rd |
| https://www.goto.com/_next/static/chunks/470.e03e331bf703c906.js | 101ms | 63ms | 2ms | 3rd |
| https://www.goto.com/_next/static/chunks/pages/%5B%5B...path%5D%5D-1443c39fccf4f8ac.js | 97ms | 97ms | 0ms | 3rd |
Showing top 10 of 17 scripts
FJS BundlesAction52 scripts, 827 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.goto.com/_next/static/chunks/992-52db63a281bfe1ff.js | 179 KB | 134 KB (75%) | ✓ | 3rd |
| https://www.goto.com/_next/static/chunks/299-c5fb47e00534af36.js | 197 KB | 129 KB (66%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js | 127 KB | 68 KB (53%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6MMS07YSMJ&cx=c>m=4e64h1 | 164 KB | 63 KB (38%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=DC-9294863&cx=c>m=4e64h1 | 131 KB | 61 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-856731670&cx=c>m=4e64h1 | 134 KB | 59 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-979374314&cx=c>m=4e64h1 | 137 KB | 59 KB (43%) | ✓ | 3rd |
| https://js.qualified.com/qualified.js?token=hUipxtRKEHpLVXaK | 117 KB | 57 KB (49%) | ✓ | 3rd |
| https://js.qualified.com/packs/js/multimodal_v2-1aa133be.js | 97 KB | 50 KB (52%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KP8F3CX | 201 KB | 48 KB (24%) | ✓ | 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 InventoryAction184 resources · 5.3 MB · 827 KB savings availableFIX
~827.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 184 resources | 5.3 MiB | ||||||
BImage Optimization46 images, 0 KB saveableREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingpublic, max-age=0, must-revalidateREVIEW
public, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading8 fonts (642 KB)PASS
Web fonts
8
642 KB total
Render-blocking
0
of 8
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
- Convert to woff2 for ~30% smaller file size
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~229 KB and ~458 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall184 requests over 5855msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 387ms | 201 KB | 24% | $5/mo | Costly |
www.goto.com www.goto.com | Other | 369ms | 48 KB | — | $5/mo | Costly |
Unattributable Unattributable | Other | 342ms | 0 KB | — | $5/mo | Costly |
www.goto.com www.goto.com | Other | 289ms | 60 KB | 36% | $4/mo | Costly |
www.goto.com www.goto.com | Other | 201ms | 22 KB | — | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 167ms | 164 KB | 38% | $2/mo | Optional |
js.qualified.com js.qualified.com | Other | 147ms | 117 KB | 49% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 115ms | 131 KB | 47% | $2/mo | Optional |
www.goto.com www.goto.com | Other | 101ms | 2 KB | — | $1/mo | Optional |
www.goto.com www.goto.com | Other | 97ms | 1 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 96ms | 134 KB | 44% | $1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 88ms | 127 KB | 53% | $1/mo | Essential |
Google Tag Manager www.googletagmanager.com | Tag Manager | 85ms | 137 KB | 43% | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 74ms | 46 KB | — | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 70ms | 97 KB | 34% | $1/mo | Optional |
j.6sc.co j.6sc.co | Other | 66ms | 19 KB | — | $1/mo | Optional |
js.qualified.com js.qualified.com | Other | 57ms | 97 KB | 52% | $1/mo | Optional |
These scripts may cost more than they're worth
- Google Tag Manager adds 387ms and costs ~$5/month
- www.goto.com adds 369ms and costs ~$5/month
- Unattributable adds 342ms and costs ~$5/month
- www.goto.com adds 289ms and costs ~$4/month
- www.goto.com adds 201ms 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
Google Tag Manager takes 387ms 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
www.goto.com takes 369ms 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 342ms 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
www.goto.com takes 289ms 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
www.goto.com takes 201ms 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 OneTrust'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
52% of js.qualified.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