Performance
· 28 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.
2.75 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.92 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.87 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.17 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.
23.30 s
Page Load Progression
FPage Weight BudgetAction3.8 MB transferred, 185 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
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 CostAction12502ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://hol.org/_next/static/chunks/2z2h0bdoc2vn2.js | 4775ms | 3898ms | 34ms | 1st |
| https://hol.org/guard | 2143ms | 100ms | 38ms | 1st |
| Unattributable | 1328ms | 24ms | 0ms | 1st |
| https://hol.org/v4xu/ | 920ms | 814ms | 58ms | 1st |
| https://js.intercomcdn.com/frame-modern.6c4c04da.js | 737ms | 551ms | 62ms | 3rd |
| https://hol.org/cdn-cgi/challenge-platform/scripts/precursor/main.js | 571ms | 528ms | 6ms | 1st |
| https://hol.org/_next/static/chunks/1ncpa3b0pnl55.js | 508ms | 438ms | 14ms | 1st |
| https://scripts.clarity.ms/0.8.70/clarity.js | 294ms | 263ms | 5ms | 3rd |
| https://hol.org/_next/static/chunks/3ct6bb742vir3.js | 194ms | 182ms | 9ms | 1st |
| https://hol.org/_next/static/chunks/06tuw03zwp6gb.js | 188ms | 173ms | 7ms | 1st |
Showing top 10 of 17 scripts
DJS BundlesAction87 scripts, 481 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://js.intercomcdn.com/frame-modern.6c4c04da.js | 187 KB | 131 KB (70%) | ✓ | 3rd |
| https://hol.org/v4xu/ | 201 KB | 64 KB (32%) | ✓ | 1st |
| https://js.intercomcdn.com/vendor-modern.ec66fae1.js | 93 KB | 46 KB (50%) | ✓ | 3rd |
| https://hol.org/_next/static/chunks/2mk31vzgv-w0_.js | 67 KB | 39 KB (59%) | ✓ | 1st |
| https://hol.org/_next/static/chunks/3f3gtpxux1nzd.js | 41 KB | 37 KB (93%) | ✓ | 1st |
| https://www.googletagmanager.com/gtm.js?id=GTM-P83WH82S | 174 KB | 30 KB (17%) | ✓ | 3rd |
| https://hol.org/_next/static/chunks/3ct6bb742vir3.js | 46 KB | 30 KB (66%) | ✓ | 1st |
| https://hol.org/_next/static/chunks/08fgflydrb_4f.js | 31 KB | 30 KB (99%) | ✓ | 1st |
| https://hol.org/_next/static/chunks/3tesbfqottkcb.js | 29 KB | 26 KB (92%) | ✓ | 1st |
| https://hol.org/_next/static/chunks/3l-ru08fg-6z8.js | 27 KB | 25 KB (96%) | ✓ | 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 InventoryAction185 resources · 3.8 MB · 481 KB savings availableFIX
~481.1 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 185 resources | 3.8 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
private, no-cache, no-store, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
BImage Optimization54 images, 0 KB saveableREVIEW
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Third-Party Impact14% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font LoadingNo web fonts (system fonts)PASS
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+Document CompressionDocument response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
A+Server-Timing Observability4 Server-Timing entries advertisedPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall185 requests over 6095msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
js.intercomcdn.com js.intercomcdn.com | Other | 737ms | 187 KB | 70% | $10/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 294ms | 25 KB | — | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 171ms | 174 KB | 17% | $2/mo | Optional |
static.cloudflareinsights.com static.cloudflareinsights.com | Other | 167ms | 10 KB | — | $2/mo | Optional |
Twitter/X Pixel static.ads-twitter.com | Advertising | 97ms | 17 KB | — | $1/mo | Optional |
js.intercomcdn.com js.intercomcdn.com | Other | 51ms | 93 KB | 50% | $1/mo | Optional |
These scripts may cost more than they're worth
- js.intercomcdn.com adds 737ms and costs ~$10/month
- Microsoft Clarity adds 294ms and costs ~$4/month
js.intercomcdn.com takes 737ms 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
70% of js.intercomcdn.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
Microsoft Clarity takes 294ms 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
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-08-24 — 2026-09-20)
LCP (p75)
3425 ms
59% good
INP (p75)
0 ms
0% good
CLS (p75)
0.030
88% good
FCP (p75)
3196 ms
TTFB (p75)
1504 ms
Image Optimization1 images, 4 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
1
Total Size
4 KB