Performance
· 27 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.
5.63 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
23.30 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.46 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.004
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
8.47 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.
25.03 s
Page Load Progression
FPage Weight BudgetAction3.9 MB transferred, 129 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
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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction20381ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.daelimtransformer.com/ | 6332ms | 190ms | 104ms | 3rd |
| https://www.daelimtransformer.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 2948ms | 2463ms | 34ms | 3rd |
| https://www.daelimtransformer.com/wp-content/litespeed/js/eaca1c7e6b3b72be3c34a396c0456a8d.js?ver=21677 | 2780ms | 1973ms | 198ms | 3rd |
| https://www.gstatic.com/recaptcha/releases/BnqMGSY_YP4cCmbNINHpJPkd/recaptcha__en.js | 2180ms | 1377ms | 191ms | 3rd |
| Unattributable | 1852ms | 13ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-KHDXD1QKZD | 964ms | 682ms | 188ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-M4RNNP2M | 817ms | 465ms | 209ms | 3rd |
| https://www.daelimtransformer.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 780ms | 656ms | 6ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-11365206624&cx=c>m=4e6992 | 354ms | 238ms | 113ms | 3rd |
| https://code.tidio.co/widget-v4/1_462_0/static/js/widget.40dcf48dfbcbd5ef901d.js | 345ms | 231ms | 54ms | 3rd |
Showing top 10 of 18 scripts
FJS BundlesAction48 scripts, 1.6 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.gstatic.com/recaptcha/releases/BnqMGSY_YP4cCmbNINHpJPkd/recaptcha__en.js | 347 KB | 187 KB (54%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/BnqMGSY_YP4cCmbNINHpJPkd/recaptcha__en.js | 0 KB | 187 KB (54%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/BnqMGSY_YP4cCmbNINHpJPkd/recaptcha__en.js | 0 KB | 187 KB (54%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/BnqMGSY_YP4cCmbNINHpJPkd/recaptcha__en.js | 347 KB | 187 KB (54%) | ✓ | 3rd |
| https://www.daelimtransformer.com/wp-content/litespeed/js/eaca1c7e6b3b72be3c34a396c0456a8d.js?ver=21677 | 228 KB | 129 KB (57%) | ✓ | 3rd |
| https://www.daelimtransformer.com/wp-content/litespeed/js/eaca1c7e6b3b72be3c34a396c0456a8d.js?ver=21677 | 0 KB | 129 KB (57%) | ✓ | 3rd |
| https://code.tidio.co/widget-v4/1_462_0/static/js/widget.40dcf48dfbcbd5ef901d.js | 223 KB | 110 KB (49%) | ✓ | 3rd |
| https://code.tidio.co/widget-v4/1_462_0/static/js/chunk-WidgetIframe-40dcf48dfbcbd5ef901d.js | 150 KB | 83 KB (56%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-KHDXD1QKZD | 182 KB | 72 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-KHDXD1QKZD | 0 KB | 72 KB (40%) | ✓ | 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
FPage Weight InventoryAction129 resources · 3.9 MB · 1.6 MB savings availableFIX
~1.6 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 129 resources | 3.9 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization21 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
CDocument CompressionActionDocument response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
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 Loading7 fonts (539 KB)PASS
Web fonts
7
539 KB total
Render-blocking
0
of 7
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
- 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
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 ~279 KB and ~558 ms
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+LCP Image PreloadLCP preload audit not availablePASS
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 Waterfall129 requests over 7617msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.daelimtransformer.com www.daelimtransformer.com | Other | 6332ms | 49 KB | — | $84/mo | Costly |
www.daelimtransformer.com www.daelimtransformer.com | Other | 2948ms | 0 KB | — | $39/mo | Costly |
www.daelimtransformer.com www.daelimtransformer.com | Other | 2780ms | 0 KB | 57% | $37/mo | Costly |
www.gstatic.com www.gstatic.com | Other | 2180ms | 0 KB | 54% | $29/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 964ms | 0 KB | 40% | $13/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 817ms | 0 KB | 45% | $11/mo | Costly |
www.daelimtransformer.com www.daelimtransformer.com | Other | 780ms | 0 KB | — | $10/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 354ms | 0 KB | 39% | $5/mo | Costly |
code.tidio.co code.tidio.co | Other | 345ms | 223 KB | 49% | $5/mo | Costly |
www.daelimtransformer.com www.daelimtransformer.com | Other | 214ms | 0 KB | — | $3/mo | Costly |
www.daelimtransformer.com www.daelimtransformer.com | Other | 188ms | 0 KB | — | $2/mo | Optional |
www.daelimtransformer.com www.daelimtransformer.com | Other | 180ms | 0 KB | — | $2/mo | Optional |
static.cloudflareinsights.com static.cloudflareinsights.com | Other | 109ms | 0 KB | — | $1/mo | Optional |
code.tidio.co code.tidio.co | Other | 108ms | 150 KB | 56% | $1/mo | Optional |
www.daelimtransformer.com www.daelimtransformer.com | Other | 85ms | 0 KB | — | $1/mo | Optional |
www.daelimtransformer.com www.daelimtransformer.com | Other | 85ms | 0 KB | — | $1/mo | Optional |
code.tidio.co code.tidio.co | Other | 59ms | 0 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.daelimtransformer.com adds 6332ms and costs ~$84/month
- www.daelimtransformer.com adds 2948ms and costs ~$39/month
- www.daelimtransformer.com adds 2780ms and costs ~$37/month
- www.gstatic.com adds 2180ms and costs ~$29/month
- Google Tag Manager adds 964ms and costs ~$13/month
- Google Tag Manager adds 817ms and costs ~$11/month
- www.daelimtransformer.com adds 780ms and costs ~$10/month
- Google Tag Manager adds 354ms and costs ~$5/month
- code.tidio.co adds 345ms and costs ~$5/month
- www.daelimtransformer.com adds 214ms and costs ~$3/month
91% 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
www.daelimtransformer.com takes 6332ms 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.daelimtransformer.com takes 2948ms 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.daelimtransformer.com takes 2780ms 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
57% of www.daelimtransformer.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
www.gstatic.com takes 2180ms 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 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
Google Tag Manager takes 964ms 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 817ms 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.daelimtransformer.com takes 780ms 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 354ms 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
code.tidio.co takes 345ms 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.daelimtransformer.com takes 214ms 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
56% of code.tidio.co'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
Image Optimization1 images, 53 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
1
Total Size
53 KB