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Performance

· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
0
REVIEW
7
PASS
12
INFO
4

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

Mobile Desktop
99
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.

441 ms

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

898 ms

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

0 ms

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

0.001

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

459 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

902 ms

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
23
12 PASS 7 REVIEW
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 569.7 KiB)
Info::
Third-party blocking time is low (0 ms)
48%
52%
First-party Third-party
B
JS Execution Cost
836ms total JS execution
REVIEW
836ms total JS execution
Warning::
https://dureach.com/en/: 627ms CPU time
Info::
Unattributable: 121ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-MQCD...: 88ms CPU time
Info::
Third-party scripts: 88ms (11% of total)

Main Thread Breakdown

Other 43% Style & Layout 26% Rendering 16% Script Evaluation 10%
ScriptTotalScriptingParse/CompileParty
https://dureach.com/en/627ms5ms1ms1st
Unattributable121ms2ms0ms1st
https://www.googletagmanager.com/gtag/js?id=G-MQCDN6MC6X88ms73ms14ms3rd
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.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
570 KB transferred, 15 requests
PASS
570 KB transferred, 15 requests
Info::
Page weighs 1.4 MB (570 KB transferred)
Info::
15 HTTP requests
Info::
Estimated 0.12 g CO2 per page load
570 KB / 2.4 MB budget
570 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 77.1 KiB 14%
Other 18.8 KiB 3%
HTML 16.0 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 FCP 441 ms LCP 898 mshttps://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 — 165 ms — font-display: swap
fa-brands-400.woff2 woff2 swap
Size 117 KB
Load time 165 ms
Start 307 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
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 · 570 KB · 121 KB savings available
PASS
15 resources · 570 KB · 121 KB savings available
Info::
Within 1MB page-weight target
Got: 570 KB
Info::
~121 KB of savings available
Warning::
3 third-party resources (52% of weight)
15 resources · 569.7 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% · 77.1 KiB
Document 3% · 17.0 KiB
Other 0% · 1.8 KiB

~121.0 KiB of savings available

Remove unused JavaScript: 121.0 KiB
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 587ms
INFO
0 ms 200 ms 400 ms 600 ms 800 ms FCP 441 ms LCP 898 mshttps://dureach.com// https://dureach.com/ — 301 — 929 B — 56 ms — h3https://dureach.com/en//en/ https://dureach.com/en/ — 200 — 16.0 KiB — 46 ms — h3https://www.googletagmanager.com/gtag/js?id=G-MQCDN6MC6Xwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-MQCDN6MC6X — 200 — 177.0 KiB — 174 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 — 51 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 — 55 ms — h3https://dureach.com/images/logo.svg/images/logo.svg https://dureach.com/images/logo.svg — 200 — 1.5 KiB — 29 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 — 57 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 — 40 ms — h3https://dureach.com/manifest.webmanifest/manifest.webmanifest https://dureach.com/manifest.webmanifest — 200 — 1.3 KiB — 87 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 — 35 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 — 35 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 — 165 ms — h3https://region1.google-analytics.com/g/collect?v=2&tid=G-MQCDN6MC6X&gtm=45je6ag1v9229053518za200zd9229053518xf1&_p=1792512935280&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=613965910.1792512936&frm=0&ngs=1&pscdl=noapi&rcb=14&sr=800x600&uaa=x86&uab=64&uafvl=Chromium%3B155.0.8059.79%7CNot(A%253ABrand%3B24.0.0.0&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=115616986~115938466~115938469~118897920~118897930~120213116~120385422~120469145~120469153~121246026~121246034~121284210&sid=1792512935&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=509region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-MQCDN6MC6X&gtm=45je6ag1v9229053518za200zd9229053518xf1&_p=1792512935280&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=613965910.1792512936&frm=0&ngs=1&pscdl=noapi&rcb=14&sr=800x600&uaa=x86&uab=64&uafvl=Chromium%3B155.0.8059.79%7CNot(A%253ABrand%3B24.0.0.0&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=115616986~115938466~115938469~118897920~118897930~120213116~120385422~120469145~120469153~121246026~121246034~121284210&sid=1792512935&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=509 — 204 — 545 B — 76 ms — h2https://dureach.com/favicon.ico/favicon.ico https://dureach.com/favicon.ico — 200 — 6.8 KiB — 44 ms — h3https://dureach.com/apple-touch-icon.png/apple-touch-icon.png https://dureach.com/apple-touch-icon.png — 200 — 11.1 KiB — 28 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
11% of JavaScript execution is third-party
First-party Third-party 88ms · 177KB · $0/mo
Google Tag Manager
Tag Manager
Optional
Execution 88ms
Transfer 177 KB
Unused 43%
Monthly Cost $0/mo

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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