https://daelimtransformer.es
Performance
· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
84
GRADE
B
FIX
4
REVIEW
4
PASS
11
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
91
94
100
77
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
719 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.26 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.005
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.46 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.
4.89 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 sChecks
2311 PASS 4 REVIEW 4 FIX
FPage Weight BudgetAction3.3 MB transferred, 249 requestsFIX
Page Weight Budget
Action3.3 MB transferred, 249 requests
3.3 MB transferred, 249 requests
Warning::
Page weighs 10.2 MB (3.3 MB transferred)
Warning::
JavaScript is 2.4 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 2.4 MB
Warning::
249 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.68 g CO2 per page load
3.3 MB transferred
249 requests
0.68 g CO2 per page load
JavaScript 2.4 MiB 74%
Images 458.2 KiB 14%
CSS 180.4 KiB 5%
Fonts 154.8 KiB 5%
HTML 49.7 KiB 1%
Other 6.4 KiB 0%
Other 1.3 KiB 0%
0 2.4 MB 4.9 MB
Over budget
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Why this matters
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.
Why this matters
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction70% third-party, 0 ms blockingFIX
Third-Party Impact
Action70% third-party, 0 ms blocking
70% third-party, 0 ms blocking
Warning::
Third-party code accounts for 70% of page weight (2.3 MiB of 3.3 MiB)
Info::
Third-party blocking time is low (0 ms)
30%
70%
First-party Third-party
DPage Weight InventoryAction249 resources · 3.3 MB · 160 KB savings availableFIX
Page Weight Inventory
Action249 resources · 3.3 MB · 160 KB savings available
249 resources · 3.3 MB · 160 KB savings available
Warning::
Page weight 3.3 MB exceeds 1 MB target by 2.3 MB
Got: 3.3 MB Expected: ≤ 1 MB
Info::
~160 KB of savings available
Warning::
132 third-party resources (70% of weight)
Info::
2 resources over 200KB
249 resources · 3.3 MiB · 132 third-party 2.3 MiB over 1MB target
JavaScript 74% · 2.4 MiB
Image 14% · 459.5 KiB
CSS 5% · 180.4 KiB
Font 5% · 154.8 KiB
Document 1% · 49.7 KiB
Other 0% · 6.4 KiB
~160.2 KiB of savings available
Remove unused JavaScript: 160.2 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 249 resources | 3.3 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
HTTP Caching
ActionNo cache headers
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
Info::
ETag present — enables conditional (304) responses
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CJS BundlesAction148 scripts, 160 KB unusedREVIEW
JS Bundles
Action148 scripts, 160 KB unused
148 scripts, 160 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-WXC2...: 73 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-TS6...: 67 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://daelimtransformer.es/wp-content/plugins/el...: 20 KB unused (55%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 160 KB
160 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-WXC29Y31E1&cx=c>m=4e6921 | 173 KB | 73 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TS6JRPCG | 129 KB | 67 KB (52%) | ✓ | 3rd |
| https://daelimtransformer.es/wp-content/plugins/elementor/assets/lib/swiper/v8/swiper.min.js?ver=8.4.5 | 37 KB | 20 KB (55%) | ✓ | 1st |
| https://daelimtransformer.es/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 29 KB | — | ✓ | 1st |
| https://daelimtransformer.es/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1 | 5 KB | — | ✓ | 1st |
| https://daelimtransformer.es/wp-content/plugins/wp-table-builder/dist/assets/parser-DjQZlMd1.js | 21 KB | — | ✓ | 1st |
| https://daelimtransformer.es/wp-content/plugins/wp-table-builder/dist/assets/common-obr_iRFg.js | 4 KB | — | ✓ | 1st |
| https://daelimtransformer.es/wp-content/plugins/wp-table-builder/dist/assets/corruption-CN_FuuhI.js | 3 KB | — | ✓ | 1st |
| https://daelimtransformer.es/wp-content/plugins/wp-table-builder/dist/assets/renderer-OUrS6wV-.js | 7 KB | — | ✓ | 1st |
| https://daelimtransformer.es/wp-content/plugins/wp-table-builder/dist/assets/frontend-common-C-l7bAWi.js?v=2.2.1 | 4 KB | — | ✓ | 1st |
Consider code splitting or tree shaking to reduce unused code.
Why this matters
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.
Why this matters
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.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
HTTP/3 (QUIC)
HTTP/3 not advertised
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
Main HTML Cache-Control
No Cache-Control header on main HTML response
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
Server-Timing Observability
No Server-Timing header found
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
AImage Optimization9 images, 0 KB saveablePASS
Image Optimization
9 images, 0 KB saveable
9 images, 0 KB saveable
Warning::
data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
9 images 458 KB
0 oversized -0 KB
2 legacy format
1 missing dimensions CLS risk
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
A+JS Execution Cost469ms total JS executionPASS
JS Execution Cost
469ms total JS execution
469ms total JS execution
Info::
https://daelimtransformer.es/: 227ms CPU time
Info::
https://daelimtransformer.es/wp-includes/js/jquery...: 102ms CPU time
Info::
Unattributable: 83ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-WXC2...: 57ms CPU time
Info::
Third-party scripts: 57ms (12% of total)
Main Thread Breakdown
Script Evaluation 38% Style & Layout 27% Other 20% Parse HTML & CSS 7% Script Parsing & Compilation 5%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://daelimtransformer.es/ | 227ms | 4ms | 5ms | 1st |
| https://daelimtransformer.es/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 102ms | 88ms | 2ms | 1st |
| Unattributable | 83ms | 1ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-WXC29Y31E1&cx=c>m=4e6921 | 57ms | 48ms | 9ms | 3rd |
A+Font Loading9 fonts (155 KB)PASS
Font Loading
9 fonts (155 KB)
9 fonts (155 KB)
Info::
9 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
9
155 KB total
Render-blocking
0
of 9
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
montserrat-jtusjig1_i6t... woff2 swap
Size 37 KB
Load time 35 ms
Start 510 ms
Risk FOUT — text flashes from fallback to web font
poppins-pxibyp8kv8jhgfv... woff2 swap
Size 8 KB
Load time 35 ms
Start 511 ms
Risk FOUT — text flashes from fallback to web font
poppins-pxibyp8kv8jhgfv... woff2 swap
Size 8 KB
Load time 37 ms
Start 512 ms
Risk FOUT — text flashes from fallback to web font
poppins-pxibyp8kv8jhgfv... woff2 swap
Size 8 KB
Load time 38 ms
Start 512 ms
Risk FOUT — text flashes from fallback to web font
poppins-pxieyp8kv8jhgfv... woff2 swap
Size 8 KB
Load time 39 ms
Start 512 ms
Risk FOUT — text flashes from fallback to web font
poppins-pxibyp8kv8jhgfv... woff2 swap
Size 8 KB
Load time 41 ms
Start 512 ms
Risk FOUT — text flashes from fallback to web font
inter-ucc73fwrk3iltehus... woff2 swap
Size 48 KB
Load time 41 ms
Start 512 ms
Risk FOUT — text flashes from fallback to web font
9cc5b37ab1350db7-s.p.woff2 woff2 swap
Size 16 KB
Load time 413 ms
Start 2.2 s
Risk FOUT — text flashes from fallback to web font
e6099e249fd938cc-s.p.woff2 woff2 swap
Size 15 KB
Load time 1.4 s
Start 2.2 s
Risk FOUT — text flashes from fallback to web font
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)
A+Resource CachingAll resources properly cachedPASS
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
A+Compression AlgorithmMain response uses brotliPASS
Compression Algorithm
Main response uses brotli
Main response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Info::
`Vary` header declared: Accept-Encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
`ETag` present -- conditional GET supported
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Google Cloud
Network Waterfall249 requests over 8971msINFO
Network Waterfall
249 requests over 8971ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
12% of JavaScript execution is third-party
First-party Third-party 57ms · 173KB · €1/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 57ms | 173 KB | 42% | €1/mo | Optional |
Google Tag Manager
Tag Manager
Execution 57ms
Transfer 173 KB
Unused 42%
Monthly Cost €1/mo
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-08-05 — 2026-09-01)
LCP (p75)
3708 ms
50% good
INP (p75)
0 ms
0% good
CLS (p75)
0.030
89% good
FCP (p75)
3302 ms
TTFB (p75)
0 ms
Image Optimization2 images, 0 KB total, 0 KB wastedINFO
Image Optimization
2 images, 0 KB total, 0 KB wasted
Image Optimization Audit
Total Images
2
Total Size
0 KB
2 missing dimensions
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.