https://www.weston.com.ua
Performance
· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
87
GRADE
B
FIX
3
REVIEW
5
PASS
15
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
52
62
100
85
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
2.29 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
6.47 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
521 ms
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.
41.90 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.
12.33 s
Page Load Progression
3.6 s 7.2 s 10.9 s 14.5 s 18.1 s 21.7 s 25.4 s
29.0 sChecks
2715 PASS 5 REVIEW 3 FIX
FPage Weight BudgetAction2.9 MB transferred, 76 requestsFIX
Page Weight Budget
Action2.9 MB transferred, 76 requests
2.9 MB transferred, 76 requests
Warning::
Page weighs 5.6 MB (2.9 MB transferred)
Warning::
Images are 2.1 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.1 MB
Info::
Fonts are 385 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 385 KB
Info::
76 HTTP requests
Info::
Estimated 0.60 g CO2 per page load
2.9 MB transferred
76 requests
0.60 g CO2 per page load
Images 2.1 MiB 72%
Fonts 385.5 KiB 13%
JavaScript 334.8 KiB 11%
CSS 47.0 KiB 2%
HTML 46.7 KiB 2%
Other 15.0 KiB 1%
0 2.4 MB 4.9 MB
Over budget
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Why this matters
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.
Why this matters
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
DJS Execution CostAction2575ms total JS executionFIX
JS Execution Cost
Action2575ms total JS execution
2575ms total JS execution
Warning::
https://www.weston.com.ua/: 1055ms CPU time
Warning::
Unattributable: 445ms CPU time
Warning::
https://connect.facebook.net/en_US/fbevents.js: 266ms CPU time
Info::
https://www.weston.com.ua/templates/gridbox/js/gri...: 193ms CPU time
Info::
https://connect.facebook.net/signals/config/431693...: 191ms CPU time
Info::
Third-party scripts: 457ms (18% of total)
Main Thread Breakdown
Style & Layout 31% Script Evaluation 28% Other 21% Script Parsing & Compilation 8% Rendering 6% Parse HTML & CSS 4%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.weston.com.ua/ | 1055ms | 6ms | 3ms | 1st |
| Unattributable | 445ms | 5ms | 0ms | 1st |
| https://connect.facebook.net/en_US/fbevents.js | 266ms | 215ms | 37ms | 3rd |
| https://www.weston.com.ua/templates/gridbox/js/gridbox.js?2.15.1 | 193ms | 110ms | 4ms | 1st |
| https://connect.facebook.net/signals/config/431693348186177?v=2.9.385&r=stable&domain=www.weston.com.ua&im=1&hme=1a72ec78e057d90ba48afa55a82b063b1c9b6ab7c0155009fecc72226a622ed2&ex_m=113%2C218%2C164%2C25%2C78%2C79%2C156%2C74%2C73%2C11%2C174%2C98%2C19%2C148%2C136%2C43%2C81%2C86%2C144%2C169%2C176%2C29%2C17%2C30%2C31%2C32%2C34%2C52%2C157%2C83%2C121%2C21%2C23%2C48%2C44%2C46%2C45%2C91%2C100%2C104%2C119%2C155%2C158%2C50%2C120%2C27%2C24%2C128%2C75%2C40%2C160%2C159%2C161%2C152%2C150%2C28%2C39%2C63%2C118%2C171%2C76%2C20%2C123%2C89%2C72%2C22%2C93%2C94%2C125%2C92%2C146%2C145%2C149%2C105%2C170%2C173%2C38%2C53%2C122%2C51%2C8%2C4%2C5%2C7%2C6%2C3%2C99%2C110%2C177%2C185%2C232%2C80%2C245%2C244%2C243%2C14%2C26%2C37%2C59%2C112%2C65%2C10%2C69%2C106%2C107%2C108%2C114%2C139%2C35%2C33%2C141%2C142%2C143%2C138%2C137%2C165%2C82%2C168%2C166%2C167%2C54%2C64%2C132%2C18%2C172%2C49%2C293%2C294%2C292%2C307%2C329%2C225%2C214%2C66%2C215%2C213%2C332%2C323%2C56%2C226%2C116%2C140%2C88%2C130%2C58%2C129%2C135%2C134%2C62%2C70%2C68%2C162%2C84%2C85%2C124%2C41%2C36%2C57%2C60%2C109%2C175%2C1%2C133%2C16%2C131%2C12%2C2%2C61%2C101%2C15%2C71%2C67%2C127%2C97%2C96%2C178%2C179%2C102%2C103%2C9%2C111%2C55%2C153%2C95%2C87%2C77%2C126%2C115%2C47%2C154%2C0%2C90%2C147%2C151%2C163%2C42%2C117%2C13%2C180 | 191ms | 166ms | 23ms | 3rd |
| https://www.weston.com.ua/components/com_gridbox/libraries/modules/initButton.js?2.15.1 | 177ms | 67ms | 0ms | 1st |
| https://www.weston.com.ua/media/jui/js/jquery.min.js?862fcd07f1e28df0fce06aad2cdf414e | 126ms | 105ms | 7ms | 1st |
| https://www.weston.com.ua/index.php?option=com_gridbox&task=editor.getItems&id=5&theme=9&edit_type=&view=page&menuitem=101&2026-08-25-10-37-48 | 122ms | 28ms | 93ms | 1st |
DHTTP CachingActionno-store (uncacheable)FIX
HTTP Caching
Actionno-store (uncacheable)
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Info::
Last-Modified header present
Cache-Control
no-store, no-cache, must-revalidate, post-check=0, pre-check=0
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
| no-cache | — | Cache but always revalidate first |
| must-revalidate | — | Must recheck with server after expiry |
| post-check | 0 | |
| pre-check | 0 |
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.
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.
CPage Weight InventoryAction76 resources · 2.9 MB · 31 KB savings availableREVIEW
Page Weight Inventory
Action76 resources · 2.9 MB · 31 KB savings available
76 resources · 2.9 MB · 31 KB savings available
Warning::
Page weight 2.9 MB exceeds 1 MB target by 1.9 MB
Got: 2.9 MB Expected: ≤ 1 MB
Info::
3 third-party resources (6% of weight)
Info::
3 resources over 200KB
76 resources · 2.9 MiB · 3 third-party 1.9 MiB over 1MB target
Image 72% · 2.1 MiB
Font 13% · 385.5 KiB
JavaScript 11% · 334.8 KiB
CSS 2% · 47.0 KiB
Document 2% · 46.7 KiB
~30.8 KiB of savings available
Remove unused JavaScript: 30.8 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 76 resources | 2.9 MiB | ||||||
BJavaScript Blocking1 JS blocking issue(s) detectedREVIEW
JavaScript Blocking
1 JS blocking issue(s) detected
1 JS blocking issue(s) detected
Warning::
25 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
A+Third-Party Impact6% third-party, 0 ms blockingPASS
Third-Party Impact
6% third-party, 0 ms blocking
6% third-party, 0 ms blocking
Info::
Third-party code accounts for 6% of page weight (176.3 KiB of 2.9 MiB)
Info::
Third-party blocking time is low (0 ms)
94%
First-party Third-party
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 Optimization27 images, 0 KB saveablePASS
Image Optimization
27 images, 0 KB saveable
27 images, 0 KB saveable
Warning::
https://www.weston.com.ua/images/banners/footer/no... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
27 images 2.1 MB
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+Font Loading6 fonts (385 KB)PASS
Font Loading
6 fonts (385 KB)
6 fonts (385 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
6
385 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
neris-light.woff woff swap
Size 99 KB
Load time 235 ms
Start 27.1 s
Risk FOUT — text flashes from fallback to web font
- Convert to woff2 for ~30% smaller file size
neris-semibold.woff woff swap
Size 100 KB
Load time 257 ms
Start 27.1 s
Risk FOUT — text flashes from fallback to web font
- Convert to woff2 for ~30% smaller file size
weston-icons.woff woff swap
Size 9 KB
Load time 260 ms
Start 27.1 s
Risk FOUT — text flashes from fallback to web font
- Convert to woff2 for ~30% smaller file size
montserrat-regular.woff woff swap
Size 85 KB
Load time 270 ms
Start 27.1 s
Risk FOUT — text flashes from fallback to web font
- Convert to woff2 for ~30% smaller file size
montserrat-medium.woff woff swap
Size 85 KB
Load time 270 ms
Start 27.1 s
Risk FOUT — text flashes from fallback to web font
- Convert to woff2 for ~30% smaller file size
ba-icons.woff woff swap
Size 9 KB
Load time 243 ms
Start 27.1 s
Risk FOUT — text flashes from fallback to web font
- 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 ~116 KB and ~232 ms
A+JS Bundles29 scripts, 31 KB unusedPASS
JS Bundles
29 scripts, 31 KB unused
29 scripts, 31 KB unused
Warning::
https://connect.facebook.net/en_US/fbevents.js: 31 KB unused (29%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 31 KB
31 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://connect.facebook.net/en_US/fbevents.js | 105 KB | 31 KB (29%) | ✓ | 3rd |
| https://www.weston.com.ua/components/com_gridbox/libraries/modules/initStoreSearch.js?2.15.1 | 2 KB | — | ✓ | 1st |
| https://www.weston.com.ua/index.php?option=com_gridbox&task=editor.loadModule&module=gridboxLanguage&2.15.1 | 22 KB | — | ✓ | 1st |
| https://www.weston.com.ua/media/jui/js/jquery-noconflict.js?862fcd07f1e28df0fce06aad2cdf414e | 0 KB | — | ✓ | 1st |
| https://www.weston.com.ua/media/jui/js/jquery-migrate.min.js?862fcd07f1e28df0fce06aad2cdf414e | 4 KB | — | ✓ | 1st |
| https://www.weston.com.ua/components/com_gridbox/libraries/modules/initCart.js?2.15.1 | 3 KB | — | ✓ | 1st |
| https://www.weston.com.ua/components/com_gridbox/libraries/bootstrap/bootstrap.js | 6 KB | — | ✗ | 1st |
| https://www.weston.com.ua/templates/gridbox/js/gridbox.js?2.15.1 | 9 KB | — | ✗ | 1st |
| https://www.weston.com.ua/index.php?option=com_gridbox&task=editor.getItems&id=5&theme=9&edit_type=&view=page&menuitem=101&2026-08-25-10-37-48 | 30 KB | — | ✓ | 1st |
| https://www.weston.com.ua/templates/gridbox/js/storage/code-editor-9.js?2026-08-25-10-37-48 | 3 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
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+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
Main HTML Cache-Control
Main HTML uses no-store -- correct for sensitive/dynamic content
Main HTML uses no-store -- correct for sensitive/dynamic content
Info::
Main HTML uses no-store -- correct for sensitive/dynamic content
Got: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
AServer Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Warning::
Compressed response missing `Vary` header
The page is served with `Content-Encoding: br` but has no `Vary` header. Without `Vary: Accept-Encoding`, intermediary caches (corporate proxies, ISP caches) may serve the compressed variant to clients that didn't send the matching `Accept-Encoding` -- the client sees garbled bytes. Add `Vary: Accept-Encoding` whenever the response is conditionally compressed.
Info::
`Last-Modified` present -- timestamp-based conditional GET supported
Consider also setting `ETag` for stronger revalidation -- ETags are content hashes that don't suffer from clock-skew or DST issues. Last-Modified alone is functional for conditional GETs and not a bug.
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
Render-Blocking Resources
No render-blocking resources detected
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+Third-Party ResourcesNo third-party resources detectedPASS
Third-Party Resources
No third-party resources detected
No third-party resources detected
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
CSS Performance Depth
1 CSS depth issue(s) detected
1 CSS depth issue(s) detected
Warning::
11 render-blocking stylesheet(s) -- recommended: <=3
Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.
Network Waterfall76 requests over 27748msINFO
Network Waterfall
76 requests over 27748ms
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
18% of JavaScript execution is third-party
First-party Third-party 457ms · 176KB · ₴329/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Facebook Pixel connect.facebook.net | Advertising | 266ms | 105 KB | 29% | ₴191/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 191ms | 71 KB | — | ₴137/mo | Costly |
Facebook Pixel
Advertising
Execution 266ms
Transfer 105 KB
Unused 29%
Monthly Cost ₴191/mo
Facebook Pixel
Advertising
Execution 191ms
Transfer 71 KB
Monthly Cost ₴137/mo
These scripts may cost more than they're worth
- Facebook Pixel adds 266ms and costs ~₴191/month
- Facebook Pixel adds 191ms and costs ~₴137/month
Facebook Pixel takes 266ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Facebook Pixel takes 191ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
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
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-07-27 — 2026-08-23)
LCP (p75)
2473 ms
76% good
INP (p75)
110 ms
88% good
CLS (p75)
0.000
99% good
FCP (p75)
1802 ms
TTFB (p75)
1178 ms
This origin passes Core Web Vitals assessment
Image Optimization17 images, 217 KB total, 22 KB wastedINFO
Image Optimization
17 images, 217 KB total, 22 KB wasted
Image Optimization Audit
Total Images
17
Total Size
217 KB
Oversized
1
Wasted
22 KB
7 missing alt text 1 missing dimensions 15 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.