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https://dureach.com

Performance

· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
7
PASS
15
INFO
4

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
97
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.25 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

1.85 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

176 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

1.25 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.

3.90 s

Page Load Progression

394 ms
787 ms
1.2 s
1.6 s
2.0 s
2.4 s
2.8 s
3.1 s
Checks
27
15 PASS 7 REVIEW 1 FIX
F
JS Execution Cost
Action
3577ms total JS execution
FIX
3577ms total JS execution
Warning::
https://dureach.com/en/: 2898ms CPU time
Warning::
Unattributable: 313ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-MQCD...: 308ms CPU time
Info::
https://dureach.com/js/script.min.47b7cbc2b79576e2...: 58ms CPU time
Info::
Third-party scripts: 308ms (9% of total)

Main Thread Breakdown

Other 44% Style & Layout 22% Rendering 20% Script Evaluation 9%
ScriptTotalScriptingParse/CompileParty
https://dureach.com/en/2898ms21ms4ms1st
Unattributable313ms8ms0ms1st
https://www.googletagmanager.com/gtag/js?id=G-MQCDN6MC6X308ms240ms66ms3rd
https://dureach.com/js/script.min.47b7cbc2b79576e2dc8dc6a39fda90e34392de54477dc94564a37cda3c12fe48.js58ms31ms19ms1st
B
Third-Party Impact
52% third-party, 0 ms blocking
REVIEW
52% third-party, 0 ms blocking
Warning::
Third-party code accounts for 52% of page weight (294.1 KiB of 569.1 KiB)
Info::
Third-party blocking time is low (0 ms)
48%
52%
First-party Third-party
B
JS Bundles
3 scripts, 121 KB unused
REVIEW
3 scripts, 121 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-MQCD...: 76 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://dureach.com/js/script.min.47b7cbc2b79576e2...: 45 KB unused (94%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 121 KB
121 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-MQCDN6MC6X177 KB76 KB (43%)✓3rd
https://dureach.com/js/script.min.47b7cbc2b79576e2dc8dc6a39fda90e34392de54477dc94564a37cda3c12fe48.js49 KB45 KB (94%)✓1st
https://dureach.com/js/script-lazy.min.11156526fd2bf41570faf784779f83de8389b8723c504330b8f003d1af053616.js19 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

C
Document Compression
Action
Document response served uncompressed
REVIEW
Document response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
C
Main HTML Cache-Control
Action
Main HTML max-age=14400 (~240min) is aggressive
REVIEW
Main HTML max-age=14400 (~240min) is aggressive
Warning::
Main HTML cached for 240 minutes -- risks stale auth / SPA state
Long max-age on the main HTML document means users may see outdated auth state, SPA shells, or A/B variants until the cache expires. Consider Cache-Control: no-cache (or max-age=300) for HTML and let your hashed assets (JS/CSS/images) carry the long cache instead.
Got: max-age=14400
B
Server-Timing Observability
No Server-Timing header found
REVIEW
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.
B
JavaScript Blocking
2 JS blocking issue(s) detected
REVIEW
2 JS blocking issue(s) detected
Warning::
1 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.
Warning::
Total JS execution time is 3.6 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
569 KB transferred, 15 requests
PASS
569 KB transferred, 15 requests
Info::
Page weighs 1.4 MB (569 KB transferred)
Info::
15 HTTP requests
Info::
Estimated 0.12 g CO2 per page load
569 KB / 2.4 MB budget
569 KB transferred
15 requests
0.12 g CO2 per page load
JavaScript 245.1 KiB 43%
Fonts 116.6 KiB 20%
Images 94.1 KiB 17%
CSS 77.2 KiB 14%
Other 18.9 KiB 3%
HTML 15.5 KiB 3%
Other 1.3 KiB 0%
Other 545 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Image Optimization
3 images, 0 KB saveable
PASS
3 images, 0 KB saveable
Info::
All images are well-optimized
3 images 94 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
Font Loading
1 fonts (117 KB)
PASS
1 fonts (117 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

117 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s FCP 1.3 s LCP 1.9 shttps://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.1/webfonts/fa-brands-400.woff2fa-brands-400.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.1/webfonts/fa-brands-400.woff2 — 116.6 KiB — 121 ms — font-display: swap
fa-brands-400.woff2 woff2 swap
Size 117 KB
Load time 121 ms
Start 347 ms
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
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 ~58 KB and ~116 ms

A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A
Resource Hints
15 hints, 0 missing preconnects
PASS
15 hints, 0 missing preconnects
Info::
5 dns-prefetch redundant with preconnect on same origin
preconnect already does the DNS lookup; adding dns-prefetch to the same origin is at best a no-op. Sample: https://use.fontawesome.com, https://cdnjs.cloudflare.com, https://www.googletagmanager.com (+2 more). Remove the redundant dns-prefetch entries.
Info::
4 URL(s) appear in multiple hints
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: https://use.fontawesome.com (preconnect+dns-prefetch), //www.google-analytics.com (preconnect+dns-prefetch), //cdnjs.cloudflare.com (preconnect+dns-prefetch) (+1 more).
Info::
Page uses 15 resource hint(s)

Current Resource Hints

preconnect
6
preload
—
dns-prefetch
9
prefetch
—

15 resource hints configured

preconnect already does the DNS lookup; adding dns-prefetch to the same origin is at best a no-op. Sample: https://use.fontawesome.com, https://cdnjs.cloudflare.com, https://www.googletagmanager.com (+2 more). Remove the redundant dns-prefetch entries.

Why this matters

Performance issues directly impact user engagement and conversion rates.

The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: https://use.fontawesome.com (preconnect+dns-prefetch), //www.google-analytics.com (preconnect+dns-prefetch), //cdnjs.cloudflare.com (preconnect+dns-prefetch) (+1 more).

Why this matters

Performance issues directly impact user engagement and conversion rates.

A+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Server Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
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.
A
Page Weight Inventory
15 resources · 569 KB · 121 KB savings available
PASS
15 resources · 569 KB · 121 KB savings available
Info::
Within 1MB page-weight target
Got: 569 KB
Info::
~121 KB of savings available
Warning::
3 third-party resources (52% of weight)
15 resources · 569.1 KiB · 3 third-party Within 1MB page-weight target
JavaScript 43% · 245.1 KiB
Font 20% · 116.6 KiB
Image 20% · 112.0 KiB
CSS 14% · 77.2 KiB
Document 3% · 16.4 KiB
Other 0% · 1.8 KiB

~120.8 KiB of savings available

Remove unused JavaScript: 120.8 KiB
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
A
HTTP Caching
max-age=14400 (4 hours)
PASS
max-age=14400 (4 hours)
Info::
Cache-Control header is set
Got: max-age=14400
Info::
Effective TTL: 4 hours (max-age=14400)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=14400

DirectiveValueMeaning
max-age14400Cache for 4 hours
Effective TTL: 14400 seconds
Asset Compression
No text asset hosts to measure
INFO
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall
15 requests over 827ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 1.3 s LCP 1.9 shttps://dureach.com// https://dureach.com/ — 301 — 949 B — 121 ms — h2https://dureach.com/en//en/ https://dureach.com/en/ — 200 — 15.5 KiB — 34 ms — h2https://www.googletagmanager.com/gtag/js?id=G-MQCDN6MC6Xwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-MQCDN6MC6X — 200 — 176.9 KiB — 182 ms — h2https://dureach.com/css/style.min.616977de221752f5fccf6896866f939a59275fded713732c1a213979f9ff1009.css/css/style.min.616977de221752f5fccf... https://dureach.com/css/style.min.616977de221752f5fccf6896866f939a59275fded713732c1a213979f9ff1009.css — 200 — 40.3 KiB — 54 ms — h3https://dureach.com/js/script.min.47b7cbc2b79576e2dc8dc6a39fda90e34392de54477dc94564a37cda3c12fe48.js/js/script.min.47b7cbc2b79576e2dc8d... https://dureach.com/js/script.min.47b7cbc2b79576e2dc8dc6a39fda90e34392de54477dc94564a37cda3c12fe48.js — 200 — 48.8 KiB — 57 ms — h3https://dureach.com/images/logo.svg/images/logo.svg https://dureach.com/images/logo.svg — 200 — 1.5 KiB — 56 ms — h3https://dureach.com/js/script-lazy.min.11156526fd2bf41570faf784779f83de8389b8723c504330b8f003d1af053616.js/js/script-lazy.min.11156526fd2bf41... https://dureach.com/js/script-lazy.min.11156526fd2bf41570faf784779f83de8389b8723c504330b8f003d1af053616.js — 200 — 19.4 KiB — 60 ms — h3https://dureach.com/css/style-lazy.min.9e7e035d2f064fe004383f2ffc11a8f2966ef7b51c5fb2fac926e35c0061b5cf.css/css/style-lazy.min.9e7e035d2f064fe... https://dureach.com/css/style-lazy.min.9e7e035d2f064fe004383f2ffc11a8f2966ef7b51c5fb2fac926e35c0061b5cf.css — 200 — 36.9 KiB — 36 ms — h3https://dureach.com/manifest.webmanifest/manifest.webmanifest https://dureach.com/manifest.webmanifest — 200 — 1.3 KiB — 61 ms — h3https://dureach.com/images/product-tour/100-copilot-default.webp/images/product-tour/100-copilot-de... https://dureach.com/images/product-tour/100-copilot-default.webp — 200 — 27.2 KiB — 350 ms — h3https://dureach.com/images/homepage/commerce-800.webp/images/homepage/commerce-800.webp https://dureach.com/images/homepage/commerce-800.webp — 200 — 65.4 KiB — 407 ms — h3https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.1/webfonts/fa-brands-400.woff2cdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.1/webfonts/fa-brands-400.woff2 — 200 — 116.6 KiB — 121 ms — h3https://region1.google-analytics.com/g/collect?v=2&tid=G-MQCDN6MC6X&gtm=45je6aj0h1v9229053518za200zd9229053518xf1&_p=1792512920926&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=1400943494.1792512921&frm=0&ngs=1&pscdl=noapi&rcb=9&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B155.0.8059.79%7CNot(A%253ABrand%3B24.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115616986~115938466~115938469~118897920~118897930~120213116~120385422~120469145~120469153~121246026~121246034&sid=1792512921&sct=1&seg=0&dl=https%3A%2F%2Fdureach.com%2Fen%2F&dt=Dureach&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=480region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-MQCDN6MC6X&gtm=45je6aj0h1v9229053518za200zd9229053518xf1&_p=1792512920926&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=1400943494.1792512921&frm=0&ngs=1&pscdl=noapi&rcb=9&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B155.0.8059.79%7CNot(A%253ABrand%3B24.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115616986~115938466~115938469~118897920~118897930~120213116~120385422~120469145~120469153~121246026~121246034&sid=1792512921&sct=1&seg=0&dl=https%3A%2F%2Fdureach.com%2Fen%2F&dt=Dureach&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=480 — 204 — 545 B — 92 ms — h2https://dureach.com/favicon.ico/favicon.ico https://dureach.com/favicon.ico — 200 — 6.8 KiB — 42 ms — h3https://dureach.com/apple-touch-icon.png/apple-touch-icon.png https://dureach.com/apple-touch-icon.png — 200 — 11.1 KiB — 324 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
9% of JavaScript execution is third-party
First-party Third-party 308ms · 177KB · $1/mo
Google Tag Manager
Tag Manager
Costly
Execution 308ms
Transfer 177 KB
Unused 43%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 308ms and costs ~$1/month

Google Tag Manager takes 308ms 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

How third-party costs are calculated

Image Optimization
6 images, 29 KB total, 24 KB wasted
INFO

Image Optimization Audit

Total Images

6

Total Size

29 KB

Oversized

1

Wasted

24 KB

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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