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Performance

· 20 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
94
GRADE
A
FIX
0
REVIEW
2
PASS
17
INFO
1

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.
73
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.

685 ms

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

985 ms

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

60 ms

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

0.003

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

685 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.

985 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
20
17 PASS 2 REVIEW
C
JS Bundles
Action
3 scripts, 259 KB unused
REVIEW
3 scripts, 259 KB unused
Warning::
https://xpenv.com/assets/index-22d4mitO.js: 259 KB unused (64%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 259 KB
259 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://xpenv.com/assets/index-22d4mitO.js403 KB259 KB (64%)✓1st
https://static.cloudflareinsights.com/beacon.min.js/v833ccba57c9e4d2798f2e76cebdd09a117781722764470 KB—✓3rd
https://xpenv.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/1eec422858ff/main.js?10 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

C
Main HTML Cache-Control
Action
Main HTML max-age=86400 (~1440min) is aggressive
REVIEW
Main HTML max-age=86400 (~1440min) is aggressive
Warning::
Main HTML cached for 1440 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=86400
A+
Page Weight Budget
436 KB transferred, 10 requests
PASS
436 KB transferred, 10 requests
Info::
Page weighs 1.5 MB (436 KB transferred)
Info::
10 HTTP requests
Info::
Estimated 0.09 g CO2 per page load
436 KB / 2.4 MB budget
436 KB transferred
10 requests
0.09 g CO2 per page load
JavaScript 413.7 KiB 95%
CSS 12.1 KiB 3%
HTML 6.1 KiB 1%
Other 1.5 KiB 0%
Other 817 B 0%
Other 799 B 0%
Other 780 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
0% third-party, 0 ms blocking
PASS
0% third-party, 0 ms blocking
Info::
Third-party code accounts for 0% of page weight (780 B of 435.7 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
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
No images on this page
PASS
No images on this page
Info::
No images on this page
0 images 0 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
451ms total JS execution
PASS
451ms total JS execution
Info::
https://xpenv.com/assets/index-22d4mitO.js: 183ms CPU time
Info::
https://xpenv.com/cdn-cgi/challenge-platform/scrip...: 101ms CPU time
Info::
Unattributable: 91ms CPU time
Info::
https://xpenv.com/: 76ms CPU time

Main Thread Breakdown

Script Evaluation 65% Other 23% Style & Layout 10%
ScriptTotalScriptingParse/CompileParty
https://xpenv.com/assets/index-22d4mitO.js183ms175ms2ms1st
https://xpenv.com/cdn-cgi/challenge-platform/scripts/jsd/main.js101ms97ms1ms1st
Unattributable91ms2ms0ms1st
https://xpenv.com/76ms21ms1ms1st
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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+
Compression Algorithm
Main response uses brotli
PASS
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 Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Server-Timing Observability
3 Server-Timing entries advertised
PASS
3 Server-Timing entries advertised
Info::
Server-Timing header advertises 3 timing entries
A+
Server Response Intelligence
2 server-response signal(s) detected
PASS
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::
`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+
Page Weight Inventory
10 resources · 436 KB · 259 KB savings available
PASS
10 resources · 436 KB · 259 KB savings available
Info::
Within 1MB page-weight target
Got: 436 KB
Info::
~259 KB of savings available
Info::
2 third-party resources (0% of weight)
Info::
1 resources over 200KB
10 resources · 435.7 KiB · 2 third-party Within 1MB page-weight target
JavaScript 95% · 413.7 KiB
CSS 3% · 12.1 KiB
Document 1% · 6.1 KiB
Other 1% · 3.9 KiB

~259.1 KiB of savings available

Remove unused JavaScript: 259.1 KiB
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

A+
HTTP Caching
max-age=86400 (1 day)
PASS
max-age=86400 (1 day)
Info::
Cache-Control header is set
Got: max-age=86400
Info::
Effective TTL: 1 day (max-age=86400)
Info::
Last-Modified header present
Cache-Control

max-age=86400

DirectiveValueMeaning
max-age86400Cache for 1 day
Effective TTL: 86400 seconds
Network Waterfall
10 requests over 494ms
INFO
0 ms 500 ms 1.0 s FCP 685 ms LCP 985 mshttps://xpenv.com// https://xpenv.com/ — 200 — 6.1 KiB — 30 ms — h3https://xpenv.com/cdn-cgi/speculation/cdn-cgi/speculation https://xpenv.com/cdn-cgi/speculation — 200 — 595 B — 6 ms — h3https://xpenv.com/assets/index-22d4mitO.js/assets/index-22d4mitO.js https://xpenv.com/assets/index-22d4mitO.js — 200 — 403.2 KiB — 36 ms — h3https://xpenv.com/assets/index-BxNJdja0.css/assets/index-BxNJdja0.css https://xpenv.com/assets/index-BxNJdja0.css — 200 — 12.1 KiB — 13 ms — h3https://xpenv.com/manifest.json/manifest.json https://xpenv.com/manifest.json — 200 — 1.5 KiB — 43 ms — h3https://static.cloudflareinsights.com/beacon.min.js/v833ccba57c9e4d2798f2e76cebdd09a11778172276447static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v833ccba57c9e4d2798f2e76cebdd09a11778172276447 — -1 — 0 B — 0 ms — https://xpenv.com/cdn-cgi/challenge-platform/scripts/jsd/main.js/cdn-cgi/challenge-platform/scripts... https://xpenv.com/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 204 B — 56 ms — h3https://xpenv.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/1eec422858ff/main.js?/cdn-cgi/challenge-platform/h/b/scr... https://xpenv.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/1eec422858ff/main.js? — 200 — 10.5 KiB — 8 ms — h3https://api.coingecko.com/api/v3/simple/price?ids=stellar&vs_currencies=usdapi.coingecko.com/api/v3/simple/pri... https://api.coingecko.com/api/v3/simple/price?ids=stellar&vs_currencies=usd — 200 — 780 B — 30 ms — h3https://xpenv.com/cdn-cgi/challenge-platform/h/b/jsd/oneshot/1eec422858ff/0.18374235578910048:1779743237:8LFoa4WdgiO40AUfdsyjvRElQAnI47NR0lke48ASc90/a017a1146cddb321/cdn-cgi/challenge-platform/h/b/jsd... https://xpenv.com/cdn-cgi/challenge-platform/h/b/jsd/oneshot/1eec422858ff/0.18374235578910048:1779743237:8LFoa4WdgiO40AUfdsyjvRElQAnI47NR0lke48ASc90/a017a1146cddb321 — 200 — 817 B — 8 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
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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