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.
1.06 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.41 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
170 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.024
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.41 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.
4.04 s
Page Load Progression
FPage Weight BudgetAction2.8 MB transferred, 209 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
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 CostAction2090ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.cookiebot.com/us/ | 950ms | 23ms | 10ms | 3rd |
| Unattributable | 369ms | 19ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-NJVLXG3 | 135ms | 110ms | 19ms | 3rd |
| https://consent.cookiebot.com/uc.js?cbid=c99c74a8-8388-4b1a-85d7-bea3bbed4aca&implementation=gtm&consentmode-dataredaction=dynamic&georegions=%7B%27region%27%3A%27us-06%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-08%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-09%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-49%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-51%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-48%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-30%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-12%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-41%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-30%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-10%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-19%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-31%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-33%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D%2C%7B%27region%27%3A%27us-34%27%2C%27cbid%27%3A%27f54bf4f4-02dc-486c-a33c-f9b80cf334b2%27%7D | 135ms | 128ms | 4ms | 3rd |
| https://consent.cookiebot.com/logconsent.ashx?action=accept&nocache=1776809330462&dnt=false&clp=true&cls=true&clm=true&cbid=c99c74a8-8388-4b1a-85d7-bea3bbed4aca&cbt=none&ticket=&bulk=false&hasdata=true&method=implied&usercountry=US-34&referer=https%3A%2F%2Fwww.cookiebot.com&rc=false | 120ms | 104ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-370622053&cx=c>m=4e64h1h1 | 92ms | 78ms | 12ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-WX15RJ0HZZ&cx=c>m=4e64h1h1 | 82ms | 64ms | 17ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-4SBCRNPYYR&cx=c>m=4e64h1h1 | 77ms | 59ms | 14ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6L1221E6ET&cx=c>m=4e64h1h1 | 76ms | 47ms | 14ms | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 54ms | 34ms | 11ms | 3rd |
DJS BundlesAction81 scripts, 389 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://consent.cookiebot.com/c99c74a8-8388-4b1a-85d7-bea3bbed4aca/cc.js?renew=false&referer=www.cookiebot.com&dnt=false&init=false&georegions=%5B%7B%22r%22%3A%22us-06%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-08%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-09%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-49%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-51%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-48%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-30%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-12%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-41%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-30%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-10%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-19%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-31%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-33%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%2C%7B%22r%22%3A%22us-34%22%2C%22i%22%3A%22f54bf4f4-02dc-486c-a33c-f9b80cf334b2%22%7D%5D | 108 KB | 76 KB (70%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-WX15RJ0HZZ&cx=c>m=4e64h1h1 | 175 KB | 65 KB (37%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6L1221E6ET&cx=c>m=4e64h1h1 | 158 KB | 64 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-4SBCRNPYYR&cx=c>m=4e64h1h1 | 159 KB | 59 KB (37%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-370622053&cx=c>m=4e64h1h1 | 146 KB | 55 KB (38%) | ✓ | 3rd |
| https://script.hotjar.com/modules.6a0f3932cb1341a35c18.js | 57 KB | 36 KB (63%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 34 KB (35%) | ✓ | 3rd |
| https://www.cookiebot.com/us/wp-content/themes/cookiebot/dist/components/blocks/cb-testimonials/js/cb-testimonials.js?ver=1776754772 | 2 KB | — | ✓ | 3rd |
| https://www.cookiebot.com/wp-content/themes/cookiebot/dist/chunks/swipe-detector-Bu6PCowm.js | 1 KB | — | ✓ | 3rd |
| https://www.cookiebot.com/wp-content/themes/cookiebot/dist/js/cb-main.js?ver=1776754774 | 2 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
DPage Weight InventoryAction209 resources · 2.8 MB · 389 KB savings availableFIX
~389.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 209 resources | 2.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization50 images, 0 KB saveableREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading14 fonts (361 KB)PASS
Web fonts
14
361 KB total
Render-blocking
0
of 14
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
Network Waterfall209 requests over 3266msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.cookiebot.com www.cookiebot.com | Other | 950ms | 60 KB | — | €10/mo | Costly |
Unattributable Unattributable | Other | 369ms | 0 KB | — | €4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 135ms | 175 KB | — | €1/mo | Optional |
consent.cookiebot.com consent.cookiebot.com | Other | 135ms | 36 KB | — | €1/mo | Optional |
consent.cookiebot.com consent.cookiebot.com | Other | 120ms | 1 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 92ms | 146 KB | 38% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 82ms | 175 KB | 37% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 77ms | 159 KB | 37% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 76ms | 158 KB | 41% | €1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 54ms | 97 KB | 35% | €1/mo | Optional |
These scripts may cost more than they're worth
- www.cookiebot.com adds 950ms and costs ~€10/month
- Unattributable adds 369ms 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
www.cookiebot.com takes 950ms 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 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