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.
617 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.93 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
66 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.007
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.26 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.
3.60 s
Page Load Progression
375 ms
750 ms
1.1 s 1.5 s
1.9 s 2.2 s 2.6 s 3.0 sFPage Weight BudgetAction3.0 MB transferred, 149 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
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 BundlesAction69 scripts, 399 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js | 127 KB | 68 KB (54%) | ✓ | 3rd |
| https://unity.login.hardrock.com/login/libs/theme/semantic.min.js | 70 KB | 63 KB (91%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-14388591&cx=c>m=4e64h1 | 129 KB | 58 KB (44%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js | 106 KB | 57 KB (54%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-11132095519 | 169 KB | 53 KB (32%) | ✓ | 3rd |
| https://unity.login.hardrock.com/login/ruxitagentjs_ICANVfqru_10335260306043831.js | 70 KB | 31 KB (44%) | ✓ | 3rd |
| https://s2.adform.net/banners/scripts/st/trackpoint-async.js | 32 KB | 24 KB (76%) | ✓ | 3rd |
| https://tags.tiqcdn.com/utag/hardrock/main/prod/utag.js | 33 KB | 23 KB (69%) | ✓ | 3rd |
| https://tags.tiqcdn.com/utag/hardrock/main/prod/utag.js | 0 KB | 23 KB (69%) | ✓ | 3rd |
| https://tags.tiqcdn.com/utag/hardrock/main/prod/utag.62.js?utv=ut4.51.202603232032 | 4 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 InventoryAction149 resources · 3.0 MB · 399 KB savings availableFIX
~399.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 149 resources | 3.0 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization22 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
BJS Execution Cost980ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 206ms | 26ms | 0ms | 3rd |
| https://www.hardrock.com/ | 192ms | 16ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-11132095519 | 121ms | 103ms | 17ms | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js | 83ms | 66ms | 15ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js | 82ms | 52ms | 16ms | 3rd |
| https://www.hardrock.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 80ms | 71ms | 1ms | 3rd |
| https://tags.tiqcdn.com/utag/hardrock/main/prod/utag.js | 80ms | 61ms | 17ms | 3rd |
| https://unity.login.hardrock.com/login/ruxitagentjs_ICANVfqru_10335260306043831.js | 72ms | 62ms | 8ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-14388591&cx=c>m=4e64h1 | 65ms | 54ms | 10ms | 3rd |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (595 KB)PASS
Web fonts
4
595 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- 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
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- 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 ~369 KB and ~738 ms
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 Waterfall149 requests over 4438msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 206ms | 0 KB | — | $3/mo | Costly |
www.hardrock.com www.hardrock.com | Other | 192ms | 23 KB | — | $3/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 121ms | 169 KB | 32% | $2/mo | Optional |
analytics.tiktok.com analytics.tiktok.com | Other | 83ms | 106 KB | 54% | $1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 82ms | 127 KB | 54% | $1/mo | Essential |
www.hardrock.com www.hardrock.com | Other | 80ms | 0 KB | — | $1/mo | Optional |
tags.tiqcdn.com tags.tiqcdn.com | Other | 80ms | 0 KB | 69% | $1/mo | Optional |
unity.login.hardrock.com unity.login.hardrock.com | Other | 72ms | 70 KB | 44% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 65ms | 129 KB | 44% | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 206ms and costs ~$3/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
Unattributable takes 206ms 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
54% of analytics.tiktok.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
54% of OneTrust'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
69% of tags.tiqcdn.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