Performance
· 24 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.
3.33 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
9.02 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.03 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.002
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
5.52 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.
9.44 s
Page Load Progression
FPage Weight BudgetAction8.6 MB transferred, 281 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
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
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
FJS Execution CostAction4545ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://jaga.id/js/vendor.385012c7.js | 1029ms | 280ms | 630ms | 1st |
| https://jaga.id/js/app.0903070f.js | 600ms | 471ms | 105ms | 1st |
| https://jaga.id/js/chunk-common.fd4ec06e.js | 559ms | 347ms | 92ms | 1st |
| Unattributable | 487ms | 31ms | 0ms | 1st |
| https://jaga.id/?_ts=1792746847732 | 433ms | 7ms | 1ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=AW-10948204618 | 262ms | 202ms | 58ms | 3rd |
| https://scripts.clarity.ms/0.8.72-beta/clarity.js | 229ms | 189ms | 25ms | 3rd |
| https://connect.facebook.net/signals/config/1308515194038257?v=2.9.427&r=stable&domain=jaga.id&hme=766752a074f0cb0756dd3275a46fdecbcfe3de1ab8f573546734b619e44d384f&ex_m=118%2C241%2C171%2C27%2C82%2C83%2C162%2C78%2C77%2C11%2C181%2C102%2C20%2C153%2C141%2C46%2C85%2C90%2C149%2C176%2C183%2C8%2C4%2C5%2C7%2C6%2C3%2C103%2C115%2C32%2C17%2C31%2C18%2C33%2C34%2C35%2C37%2C55%2C163%2C87%2C126%2C22%2C24%2C51%2C47%2C49%2C48%2C95%2C104%2C108%2C124%2C160%2C164%2C53%2C125%2C29%2C26%2C133%2C79%2C43%2C166%2C165%2C167%2C157%2C155%2C30%2C42%2C66%2C123%2C178%2C80%2C21%2C128%2C93%2C76%2C23%2C97%2C98%2C130%2C96%2C151%2C150%2C154%2C109%2C177%2C180%2C41%2C56%2C127%2C54%2C161%2C72%2C185%2C110%2C184%2C210%2C255%2C84%2C274%2C273%2C272%2C14%2C25%2C28%2C40%2C62%2C117%2C68%2C10%2C73%2C111%2C112%2C113%2C119%2C144%2C38%2C36%2C146%2C147%2C148%2C143%2C142%2C172%2C86%2C175%2C173%2C174%2C57%2C69%2C67%2C137%2C19%2C179%2C52%2C324%2C325%2C326%2C323%2C340%2C362%2C248%2C237%2C70%2C238%2C236%2C365%2C356%2C59%2C249%2C121%2C145%2C92%2C135%2C61%2C134%2C140%2C139%2C65%2C74%2C168%2C88%2C89%2C129%2C44%2C39%2C60%2C63%2C114%2C182%2C1%2C138%2C16%2C136%2C12%2C2%2C64%2C105%2C15%2C75%2C71%2C132%2C101%2C100%2C187%2C188%2C106%2C107%2C9%2C116%2C186%2C58%2C158%2C99%2C91%2C81%2C131%2C120%2C169%2C50%2C159%2C0%2C94%2C152%2C156%2C170%2C45%2C122%2C13%2C189 | 186ms | 145ms | 41ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-8NF83QQ38P&cx=c>m=4e6am0h2 | 172ms | 146ms | 25ms | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 168ms | 117ms | 48ms | 3rd |
Showing top 10 of 15 scripts
FJS BundlesAction150 scripts, 3.7 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://jaga.id/js/vendor.385012c7.js | 1797 KB | 1428 KB (80%) | ✓ | 1st |
| https://jaga.id/js/vendor.385012c7.js | 0 KB | 1428 KB (80%) | ✓ | 1st |
| https://www.googletagmanager.com/gtag/js?id=AW-10948204618&cx=c>m=4e6al1 | 156 KB | 114 KB (73%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-8NF83QQ38P&cx=c>m=4e6am0h2 | 176 KB | 75 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-P8QL26M | 0 KB | 72 KB (62%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-P8QL26M | 117 KB | 72 KB (62%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-MBLSR6QC | 118 KB | 69 KB (58%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-MBLSR6QC | 0 KB | 69 KB (58%) | ✓ | 3rd |
| https://jaga.id/js/app.0903070f.js | 0 KB | 68 KB (22%) | ✓ | 1st |
| https://jaga.id/js/app.0903070f.js | 315 KB | 68 KB (22%) | ✓ | 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
FPage Weight InventoryAction281 resources · 8.6 MB · 3.7 MB savings availableFIX
~3.7 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 281 resources | 8.6 MiB | ||||||
BThird-Party Impact51% third-party, 0 ms blockingREVIEW
CImage OptimizationAction45 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
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
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
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
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
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
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
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
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
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
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
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
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
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
CAsset CompressionAction1 of 2 asset hosts serve text uncompressedREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
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 Loading9 fonts (258 KB)PASS
Web fonts
9
258 KB total
Render-blocking
0
of 9
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
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 ~81 KB and ~162 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML max-age=30 (≤ 5min) is appropriatePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+HTTP Cachingmax-age=30 (30 seconds)PASS
max-age=30
| Directive | Value | Meaning |
|---|---|---|
| max-age | 30 | Cache for 30 seconds |
Network Waterfall281 requests over 7356msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 262ms | 0 KB | 34% | Rp6469/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 229ms | 0 KB | — | Rp5649/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 186ms | 0 KB | 34% | Rp4600/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 172ms | 176 KB | 43% | Rp4234/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 168ms | 0 KB | 37% | Rp4137/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 130ms | 0 KB | 62% | Rp3203/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 128ms | 0 KB | 58% | Rp3162/mo | Costly |
www.gstatic.com www.gstatic.com | Other | 57ms | 0 KB | — | Rp1411/mo | Costly |
Google Analytics www.google-analytics.com | Analytics | 54ms | 0 KB | 40% | Rp1336/mo | Costly |
www.gstatic.com www.gstatic.com | Other | 52ms | 0 KB | 68% | Rp1273/mo | Costly |
These scripts may cost more than they're worth
- Google Tag Manager adds 262ms and costs ~Rp6469/month
- Microsoft Clarity adds 229ms and costs ~Rp5649/month
- Facebook Pixel adds 186ms and costs ~Rp4600/month
- Google Tag Manager adds 172ms and costs ~Rp4234/month
- Facebook Pixel adds 168ms and costs ~Rp4137/month
- Google Tag Manager adds 130ms and costs ~Rp3203/month
- Google Tag Manager adds 128ms and costs ~Rp3162/month
- www.gstatic.com adds 57ms and costs ~Rp1411/month
- Google Analytics adds 54ms and costs ~Rp1336/month
- www.gstatic.com adds 52ms and costs ~Rp1273/month
Google Tag Manager takes 262ms 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
Microsoft Clarity takes 229ms 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
Facebook Pixel takes 186ms 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 172ms 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
Facebook Pixel takes 168ms 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 130ms 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
62% 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
Google Tag Manager takes 128ms 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
58% 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
www.gstatic.com takes 57ms 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 Analytics takes 54ms 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
www.gstatic.com takes 52ms 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
68% of www.gstatic.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
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-09-24 — 2026-10-21)
LCP (p75)
4513 ms
50% good
INP (p75)
251 ms
70% good
CLS (p75)
0.000
89% good
FCP (p75)
3455 ms
TTFB (p75)
571 ms
Image Optimization38 images, 445 KB total, 248 KB wastedINFO
Image Optimization Audit
Total Images
38
Total Size
445 KB
Oversized
14
Wasted
248 KB