https://wurth.ua
Performance
· 24 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
78
GRADE
C
FIX
4
REVIEW
6
PASS
10
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
85
69
96
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
620 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.11 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
194 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.042
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.87 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.
4.73 s
Page Load Progression
Checks
2410 PASS 6 REVIEW 4 FIX
FPage Weight BudgetAction3.4 MB transferred, 153 requestsFIX
Page Weight Budget
Action3.4 MB transferred, 153 requests
3.4 MB transferred, 153 requests
Warning::
Page weighs 8.2 MB (3.4 MB transferred)
Warning::
JavaScript is 1.4 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.4 MB
Warning::
Images are 1.2 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.2 MB
Info::
Fonts are 737 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 737 KB
Warning::
153 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.72 g CO2 per page load
3.4 MB transferred
153 requests
0.72 g CO2 per page load
JavaScript 1.4 MiB 40%
Images 1.2 MiB 35%
Fonts 737.3 KiB 21%
CSS 71.9 KiB 2%
HTML 65.1 KiB 2%
Other 6.1 KiB 0%
Other 5.1 KiB 0%
Other 1.6 KiB 0%
Other 961 B 0%
Other 0 B 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
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
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
DJS Execution CostAction2050ms total JS executionFIX
JS Execution Cost
Action2050ms total JS execution
2050ms total JS execution
Warning::
https://wurth.ua/themes/demo/assets/js/jquery.min....: 609ms CPU time
Warning::
https://wurth.ua/: 399ms CPU time
Warning::
Unattributable: 310ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-K9H5...: 120ms CPU time
Info::
https://analytics.tiktok.com/i18n/pixel/static/mai...: 110ms CPU time
Info::
Third-party scripts: 648ms (32% of total)
Main Thread Breakdown
Script Evaluation 39% Other 33% Style & Layout 15% Script Parsing & Compilation 5% Rendering 5%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://wurth.ua/themes/demo/assets/js/jquery.min.js | 609ms | 31ms | 2ms | 1st |
| https://wurth.ua/ | 399ms | 36ms | 1ms | 1st |
| Unattributable | 310ms | 6ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-K9H5G5400B | 120ms | 106ms | 14ms | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MTJjYzk1MmQ1OQ.js | 110ms | 97ms | 11ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-402614244&cx=c>m=4e6as1h1 | 109ms | 87ms | 10ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5HMVT2G5 | 108ms | 83ms | 17ms | 3rd |
| https://wurth.ua/themes/demo/assets/js/script.js?v=1792747192 | 83ms | 60ms | 5ms | 1st |
| https://statics.esputnik.com/scripts/CA0045FD3F9E4B889065504A72DFCB67.js | 77ms | 52ms | 19ms | 3rd |
| https://scripts.clarity.ms/0.8.72/clarity.js | 68ms | 54ms | 2ms | 3rd |
Showing top 10 of 11 scripts
FJS BundlesAction21 scripts, 576 KB unusedFIX
JS Bundles
Action21 scripts, 576 KB unused
21 scripts, 576 KB unused
Warning::
https://statics.esputnik.com/scripts/CA0045FD3F9E4...: 129 KB unused (71%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-K9H5...: 72 KB unused (36%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-5HM...: 70 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-402...: 67 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://analytics.tiktok.com/i18n/pixel/static/mai...: 60 KB unused (47%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 576 KB
576 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://statics.esputnik.com/scripts/CA0045FD3F9E4B889065504A72DFCB67.js | 183 KB | 129 KB (71%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-K9H5G5400B | 199 KB | 72 KB (36%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5HMVT2G5 | 169 KB | 70 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-402614244&cx=c>m=4e6as1h1 | 168 KB | 67 KB (40%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MTJjYzk1MmQ1OQ.js | 127 KB | 60 KB (47%) | ✓ | 3rd |
| https://script.ringostat.com/v4/95/95ceca3290b3f457de7ffb396ab74590f730cffb.js | 141 KB | 58 KB (41%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 112 KB | 37 KB (33%) | ✓ | 3rd |
| https://wurth.ua/themes/demo/assets/js/script.js?v=1792747192 | 41 KB | 32 KB (83%) | ✗ | 1st |
| https://connect.facebook.net/signals/config/461539375035055?v=2.9.433&r=stable&domain=wurth.ua&hme=4453c87d489b6902031c012cadd2731893cd69feb64fe8a61b339727247a7703&ex_m=118%2C242%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%2C211%2C263%2C84%2C283%2C282%2C281%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%2C333%2C334%2C335%2C332%2C349%2C371%2C256%2C238%2C70%2C239%2C237%2C374%2C365%2C59%2C257%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 | 73 KB | 26 KB (35%) | ✓ | 3rd |
| https://wurth.ua/modules/system/assets/js/framework-extras.js | 44 KB | 25 KB (58%) | ✗ | 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
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
DPage Weight InventoryAction153 resources · 3.4 MB · 576 KB savings availableFIX
Page Weight Inventory
Action153 resources · 3.4 MB · 576 KB savings available
153 resources · 3.4 MB · 576 KB savings available
Warning::
Page weight 3.4 MB exceeds 1 MB target by 2.4 MB
Got: 3.4 MB Expected: ≤ 1 MB
Info::
~576 KB of savings available
Info::
44 third-party resources (37% of weight)
153 resources · 3.4 MiB · 44 third-party 2.4 MiB over 1MB target
JavaScript 40% · 1.4 MiB
Image 35% · 1.2 MiB
Font 21% · 737.3 KiB
CSS 2% · 71.9 KiB
Document 2% · 65.6 KiB
Other 0% · 8.2 KiB
~575.7 KiB of savings available
Remove unused JavaScript: 575.7 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 153 resources | 3.4 MiB | ||||||
BImage Optimization92 images, 0 KB saveableREVIEW
Image Optimization
92 images, 0 KB saveable
92 images, 0 KB saveable
Info::
All images are well-optimized
92 images 1.2 MB
0 oversized -0 KB
58 legacy format
0 missing dimensions CLS risk
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.
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
Document Compression
Document response uses gzip; brotli would be ~20% smaller
Document response uses gzip; brotli would be ~20% smaller
Info::
Main HTML response uses gzip (brotli would be ~20% smaller)
All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.
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.
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
BHTTP Cachingno-cache, privateREVIEW
HTTP Caching
no-cache, private
no-cache, private
Info::
Cache-Control header is set
Got: no-cache, private
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
no-cache, private
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| private | — | Only browser cache, not CDN/proxy |
AThird-Party Impact37% third-party, 0 ms blockingPASS
Third-Party Impact
37% third-party, 0 ms blocking
37% third-party, 0 ms blocking
Info::
Third-party code accounts for 37% of page weight (1.3 MiB of 3.4 MiB)
Info::
Third-party blocking time is low (0 ms)
63%
37%
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.
A+Font Loading5 fonts (737 KB)PASS
Font Loading
5 fonts (737 KB)
5 fonts (737 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
5
737 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
Helvetica-Bold.woff2 woff2 swap
Size 106 KB
Load time 104 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
WuerthBold.ttf ttf swap
Size 181 KB
Load time 152 ms
Start 2.2 s
Risk FOUT — text flashes from fallback to web font
- 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
WuerthBook.ttf ttf swap
Size 176 KB
Load time 161 ms
Start 2.2 s
Risk FOUT — text flashes from fallback to web font
- 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
WuerthExtraBoldCond.ttf ttf swap
Size 181 KB
Load time 112 ms
Start 2.2 s
Risk FOUT — text flashes from fallback to web font
- 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
Wuerthicons.woff2 woff2 swap
Size 93 KB
Load time 157 ms
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)
Fixing the unchecked items could save ~483 KB and ~966 ms
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
AAsset Compression1 of 3 asset hosts still on gzipPASS
Asset Compression
1 of 3 asset hosts still on gzip
1 of 3 asset hosts still on gzip
Info::
cdn.jsdelivr.net serves assets with brotli (assets: 6)
Got: cdn.jsdelivr.net (text/css)
Info::
analytics.tiktok.com serves assets with gzip; brotli would be ~20% smaller (assets: 3)
Every current browser accepts brotli. On a CDN this is a per-pull-zone toggle (Cloudflare, Fastly, CloudFront, CDN77, Bunny all expose it); on an origin it needs the brotli module (nginx-brotli, Apache mod_brotli). The saving lands on the assets this host serves, not on the HTML document -- the document's own encoding is reported separately.
Got: analytics.tiktok.com (application/javascript)
Info::
www.googletagmanager.com serves assets with brotli (assets: 3)
Got: www.googletagmanager.com (application/javascript)
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-cache -- safe revalidate-on-request policyPASS
Main HTML Cache-Control
Main HTML uses no-cache -- safe revalidate-on-request policy
Main HTML uses no-cache -- safe revalidate-on-request policy
Info::
Main HTML uses no-cache -- safe revalidate-on-request policy
Got: no-cache, private
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::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
Network Waterfall153 requests over 3911msINFO
Network Waterfall
153 requests over 3911ms
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
32% of JavaScript execution is third-party
First-party Third-party 648ms · 985KB · ₴155/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 120ms | 199 KB | 36% | ₴29/mo | Optional |
analytics.tiktok.com analytics.tiktok.com | Other | 110ms | 127 KB | 47% | ₴26/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 109ms | 168 KB | 40% | ₴26/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 108ms | 169 KB | 42% | ₴26/mo | Optional |
statics.esputnik.com statics.esputnik.com | Other | 77ms | 183 KB | 71% | ₴18/mo | Optional |
Microsoft Clarity scripts.clarity.ms | Session Replay | 68ms | 25 KB | — | ₴16/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 55ms | 112 KB | 33% | ₴13/mo | Optional |
Google Tag Manager
Tag Manager
Execution 120ms
Transfer 199 KB
Unused 36%
Monthly Cost ₴29/mo
analytics.tiktok.com
Other
Execution 110ms
Transfer 127 KB
Unused 47%
Monthly Cost ₴26/mo
Google Tag Manager
Tag Manager
Execution 109ms
Transfer 168 KB
Unused 40%
Monthly Cost ₴26/mo
Google Tag Manager
Tag Manager
Execution 108ms
Transfer 169 KB
Unused 42%
Monthly Cost ₴26/mo
statics.esputnik.com
Other
Execution 77ms
Transfer 183 KB
Unused 71%
Monthly Cost ₴18/mo
Microsoft Clarity
Session Replay
Execution 68ms
Transfer 25 KB
Monthly Cost ₴16/mo
Facebook Pixel
Advertising
Execution 55ms
Transfer 112 KB
Unused 33%
Monthly Cost ₴13/mo
71% of statics.esputnik.com's code is unused. The script may be loading features you don't use.
Why this matters
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
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-10-03 — 2026-10-30)
LCP (p75)
2447 ms
77% good
INP (p75)
159 ms
85% good
CLS (p75)
0.030
91% good
FCP (p75)
1770 ms
TTFB (p75)
1467 ms
This origin passes Core Web Vitals assessment
Image Optimization200 images, 601 KB total, 0 KB wastedINFO
Image Optimization
200 images, 601 KB total, 0 KB wasted
Image Optimization Audit
Total Images
200
Total Size
601 KB
200 missing dimensions 157 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.