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.
870 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.56 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.00 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.021
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.25 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.
5.18 s
Page Load Progression
FPage Weight BudgetAction13.7 MB transferred, 118 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
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 CostAction3354ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=AW-11011508289&cx=c>m=4e64h1 | 601ms | 494ms | 38ms | 3rd |
| https://assets.bbb.org/bbb-web/8825130525bf1e5b8eddf64f566e56aa9e9bd300/app.main.js | 541ms | 484ms | 18ms | 3rd |
| Unattributable | 452ms | 13ms | 0ms | 3rd |
| https://www.bbb.org/ | 216ms | 26ms | 12ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-MP6NWVNK4P&cx=c>m=4e64h1 | 195ms | 166ms | 25ms | 3rd |
| https://assets.adobedtm.com/launch-EN74d1dc22a68341b68339756f3beae641.min.js | 163ms | 137ms | 24ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604090101/pubads_impl.js?cb=31097905 | 154ms | 130ms | 21ms | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 148ms | 74ms | 53ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-629008627 | 136ms | 106ms | 29ms | 3rd |
| https://www.bbb.org/cdn-cgi/challenge-platform/scripts/jsd/main.js | 133ms | 125ms | 2ms | 3rd |
Showing top 10 of 16 scripts
FJS BundlesAction59 scripts, 1.3 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 0 KB | 177 KB (49%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 177 KB (49%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 177 KB (49%) | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604090101/pubads_impl.js?cb=31097905 | 186 KB | 133 KB (72%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-11011579981&cx=c>m=4e64h1 | 181 KB | 108 KB (60%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-17719875664&l=dataLayer | 143 KB | 106 KB (74%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-MP6NWVNK4P&cx=c>m=4e64h1 | 173 KB | 70 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-95DDJ1D49H&cx=c>m=4e64h1 | 162 KB | 67 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-17719875664&cx=c>m=4e64h1 | 143 KB | 62 KB (43%) | ✓ | 3rd |
| https://assets.bbb.org/bbb-web/8825130525bf1e5b8eddf64f566e56aa9e9bd300/app.main.js | 144 KB | 60 KB (42%) | ✓ | 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 InventoryAction118 resources · 13.7 MB · 1.3 MB savings availableFIX
~1.3 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 118 resources | 13.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction15 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
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (35 KB)PASS
Web fonts
4
35 KB total
Render-blocking
0
of 4
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
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall118 requests over 4853msINFO
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 | 601ms | 181 KB | 31% | €7/mo | Costly |
assets.bbb.org assets.bbb.org | Other | 541ms | 144 KB | 42% | €6/mo | Costly |
Unattributable Unattributable | Other | 452ms | 0 KB | — | €5/mo | Costly |
www.bbb.org www.bbb.org | Other | 216ms | 21 KB | — | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 195ms | 173 KB | 40% | €2/mo | Optional |
assets.adobedtm.com assets.adobedtm.com | Other | 163ms | 132 KB | 30% | €2/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 154ms | 186 KB | 72% | €2/mo | Optional |
www.gstatic.com www.gstatic.com | Other | 148ms | 0 KB | 49% | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 136ms | 141 KB | 36% | €1/mo | Optional |
www.bbb.org www.bbb.org | Other | 133ms | 0 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 125ms | 162 KB | 41% | €1/mo | Optional |
cdn.evgnet.com cdn.evgnet.com | Other | 117ms | 45 KB | 46% | €1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 115ms | 47 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 94ms | 143 KB | 43% | €1/mo | Optional |
assets.adobedtm.com assets.adobedtm.com | Other | 84ms | 2 KB | — | €1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 81ms | 97 KB | 33% | €1/mo | Optional |
These scripts may cost more than they're worth
- Google Tag Manager adds 601ms and costs ~€7/month
- assets.bbb.org adds 541ms and costs ~€6/month
- Unattributable adds 452ms and costs ~€5/month
- www.bbb.org adds 216ms and costs ~€2/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 601ms 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.bbb.org takes 541ms 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 452ms 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.bbb.org takes 216ms 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
72% of securepubads.g.doubleclick.net'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