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.
11.65 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
24.07 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
277 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.080
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
11.65 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.
24.16 s
Page Load Progression
FPage Weight BudgetAction4.2 MB transferred, 127 requestsFIX
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
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
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
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
FJS Execution CostAction3623ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://js.hs-analytics.net/analytics/1776892800000/39929437.js | 882ms | 599ms | 13ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-TQ07LZCNVD | 543ms | 273ms | 62ms | 3rd |
| Unattributable | 493ms | 21ms | 0ms | 3rd |
| https://pydata.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 445ms | 286ms | 12ms | 1st |
| https://pydata.org/ | 388ms | 42ms | 12ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=AW-10863026222&cx=c>m=4e64k0h1 | 374ms | 317ms | 53ms | 3rd |
| https://pydata.org/wp-content/themes/Divi/js/scripts.min.js?ver=4.27.6 | 286ms | 185ms | 35ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=AW-10863026222 | 79ms | 26ms | 53ms | 3rd |
| https://pydata.org/wp-content/plugins/modern-events-calendar/assets/js/mec-general-calendar.js?ver=6.2.0 | 67ms | 32ms | 35ms | 1st |
| https://js.hubspot.com/web-interactives-embed.js | 66ms | 50ms | 12ms | 3rd |
DJS BundlesAction52 scripts, 380 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=AW-10863026222 | 146 KB | 105 KB (72%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-TQ07LZCNVD | 157 KB | 65 KB (41%) | ✓ | 3rd |
| https://pydata.org/wp-content/plugins/modern-events-calendar/assets/js/mec-general-calendar.js?ver=6.2.0 | 74 KB | 62 KB (85%) | ✓ | 1st |
| https://www.googletagmanager.com/gtag/js?id=AW-10863026222&cx=c>m=4e64k0h1 | 146 KB | 56 KB (38%) | ✓ | 3rd |
| https://pydata.org/wp-content/themes/Divi/js/scripts.min.js?ver=4.27.6 | 70 KB | 45 KB (65%) | ✓ | 1st |
| https://pydata.org/wp-content/plugins/modern-events-calendar/assets/js/frontend.js?ver=6.2.0 | 29 KB | 26 KB (92%) | ✗ | 1st |
| https://static.addtoany.com/menu/modules/core.ydpp7jcu.js | 26 KB | 21 KB (82%) | ✓ | 3rd |
| https://pydata.org/wp-content/plugins/modern-events-calendar/assets/packages/tooltip/tooltip.js?ver=6.2.0 | 10 KB | — | ✓ | 1st |
| https://pydata.org/wp-content/plugins/divi-footer-editor/js/call.js?ver=1.1 | 1 KB | — | ✓ | 1st |
| https://pydata.org/wp-content/plugins/easy-social-icons/js/share.js?ver=1.0 | 1 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
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 InventoryAction127 resources · 4.2 MB · 380 KB savings availableFIX
~380.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 127 resources | 4.2 MiB | ||||||
BThird-Party Impact44% third-party, 0 ms blockingREVIEW
BImage Optimization24 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading8 fonts (393 KB)PASS
Web fonts
8
393 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
- 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 ~85 KB and ~170 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints3 hints, 0 missing preconnectsPASS
Current Resource Hints
3 resource hints configured
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
AHTTP Cachingmax-age=600 (10 minutes)PASS
max-age=600, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| max-age | 600 | Cache for 10 minutes |
| must-revalidate | — | Must recheck with server after expiry |
Network Waterfall127 requests over 4604msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
HubSpot Analytics js.hs-analytics.net | Analytics | 882ms | 42 KB | — | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 543ms | 157 KB | 41% | $3/mo | Costly |
Unattributable Unattributable | Other | 493ms | 0 KB | — | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 374ms | 146 KB | 38% | $2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 79ms | 146 KB | 72% | $0/mo | Optional |
js.hubspot.com js.hubspot.com | Other | 66ms | 28 KB | — | $0/mo | Optional |
These scripts may cost more than they're worth
- HubSpot Analytics adds 882ms and costs ~$5/month
- Google Tag Manager adds 543ms and costs ~$3/month
- Unattributable adds 493ms and costs ~$3/month
- Google Tag Manager adds 374ms and costs ~$2/month
67% 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
HubSpot Analytics takes 882ms 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 543ms 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 493ms 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 374ms 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 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