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.
451 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
451 ms
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
49 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.150
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
658 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
1.95 s
Page Load Progression
DHTTP CachingActionno-store (uncacheable)FIX
no-store, no-cache, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
| no-cache | — | Cache but always revalidate first |
| must-revalidate | — | Must recheck with server after expiry |
BPage Weight Budget1.2 MB transferred, 73 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
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
BThird-Party Impact54% third-party, 0 ms blockingREVIEW
BImage Optimization40 images, 0 KB saveableREVIEW
BJS Execution Cost736ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://perfectdomain.com/ | 220ms | 4ms | 0ms | 1st |
| Unattributable | 205ms | 26ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-QXDXF5GH8B&cx=c>m=4e64h1 | 109ms | 85ms | 23ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-BEQKMP0MBF&cx=c>m=4e64h1 | 73ms | 54ms | 18ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-N6FCLDD | 67ms | 47ms | 15ms | 3rd |
| https://perfectdomain.com/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js | 61ms | 47ms | 5ms | 1st |
CJS BundlesAction15 scripts, 259 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-BEQKMP0MBF&cx=c>m=4e64h1 | 157 KB | 66 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-QXDXF5GH8B&cx=c>m=4e64h1 | 146 KB | 65 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=UA-121688222-1 | 125 KB | 65 KB (52%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-N6FCLDD | 117 KB | 64 KB (55%) | ✓ | 3rd |
| https://perfectdomain.com/static/js/script-1.3.8.min.js | 10 KB | — | ✓ | 1st |
| https://perfectdomain.com/static/js/js.cookie.js | 2 KB | — | ✓ | 1st |
| https://perfectdomain.com/static/js/ejs.min.js | 8 KB | — | ✓ | 1st |
| https://perfectdomain.com/static/js/bootstrap.min.js | 10 KB | — | ✓ | 1st |
| https://perfectdomain.com/static/js/defer-1.1.1.js | 1 KB | — | ✓ | 1st |
| https://perfectdomain.com/static/js/style-1.1.1.min.js | 2 KB | — | ✓ | 1st |
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
BPage Weight Inventory73 resources · 1.2 MB · 259 KB savings availableREVIEW
~259.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 73 resources | 1.2 MiB | ||||||
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (332 KB)PASS
Web fonts
5
332 KB total
Render-blocking
0
of 5
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 Waterfall73 requests over 3018msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 205ms | 0 KB | — | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 109ms | 146 KB | 44% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 73ms | 157 KB | 42% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 67ms | 117 KB | 55% | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 205ms and costs ~$3/month
62% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
Unattributable takes 205ms 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
55% 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