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https://invest.ivpstudio.es

Performance

· 21 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
94
GRADE
A
FIX
1
REVIEW
3
PASS
15
INFO
2

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.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
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.

661 ms

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

899 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.

0.000

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

937 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.

899 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
21
15 PASS 3 REVIEW 1 FIX
D
HTTP Caching
Action
no-store (uncacheable)
FIX
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-cache, no-store, max-age=0, must-revalidate
Info::
Last-Modified header present
Cache-Control

no-cache, no-store, max-age=0, must-revalidate

DirectiveValueMeaning
no-cache—Cache but always revalidate first
no-store—Never cache this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
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.
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.
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.
A+
Page Weight Budget
207 KB transferred, 9 requests
PASS
207 KB transferred, 9 requests
Info::
Page weighs 490 KB (207 KB transferred)
Info::
9 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
207 KB / 2.4 MB budget
207 KB transferred
9 requests
0.04 g CO2 per page load
JavaScript 99.7 KiB 48%
Fonts 47.3 KiB 23%
Other 34.5 KiB 17%
CSS 20.3 KiB 10%
HTML 2.4 KiB 1%
Other 1.5 KiB 1%
Other 1.0 KiB 0%
0 2.4 MB 4.9 MB
Under budget
A
Third-Party Impact
23% third-party, 0 ms blocking
PASS
23% third-party, 0 ms blocking
Info::
Third-party code accounts for 23% of page weight (48.6 KiB of 206.8 KiB)
Info::
Third-party blocking time is low (0 ms)
77%
23%
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
295ms total JS execution
PASS
295ms total JS execution
Info::
https://invest.ivpstudio.es/: 211ms CPU time
Info::
https://invest.ivpstudio.es/assets/index-D-9mvMhf....: 84ms CPU time

Main Thread Breakdown

Other 52% Style & Layout 21% Script Evaluation 18% Rendering 9%
ScriptTotalScriptingParse/CompileParty
https://invest.ivpstudio.es/211ms1ms0ms1st
https://invest.ivpstudio.es/assets/index-D-9mvMhf.js84ms47ms0ms1st
A+
Font Loading
1 fonts (47 KB)
PASS
1 fonts (47 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

47 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 661 ms LCP 899 mshttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2UcC73FwrK3iLTeHuS_nVMrM... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 47.3 KiB — 54 ms — font-display: swap
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 54 ms
Start 392 ms
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)
A+
JS Bundles
1 scripts, 43 KB unused
PASS
1 scripts, 43 KB unused
Warning::
https://invest.ivpstudio.es/assets/index-D-9mvMhf....: 43 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 43 KB
43 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://invest.ivpstudio.es/assets/index-D-9mvMhf.js100 KB43 KB (44%)✓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 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+
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+
Main HTML Cache-Control
Main HTML uses no-store -- correct for sensitive/dynamic content
PASS
Main HTML uses no-store -- correct for sensitive/dynamic content
Info::
Main HTML uses no-store -- correct for sensitive/dynamic content
Got: no-cache, no-store, max-age=0, must-revalidate
A+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
`Vary` header declared: Origin
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
9 resources · 207 KB · 43 KB savings available
PASS
9 resources · 207 KB · 43 KB savings available
Info::
Within 1MB page-weight target
Got: 207 KB
Info::
2 third-party resources (23% of weight)
9 resources · 206.8 KiB · 2 third-party Within 1MB page-weight target
JavaScript 48% · 99.7 KiB
Font 23% · 47.3 KiB
Image 17% · 34.5 KiB
CSS 10% · 20.3 KiB
Other 1% · 2.5 KiB
Document 1% · 2.4 KiB

~43.3 KiB of savings available

Remove unused JavaScript: 43.3 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: IONOS SE

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
9 requests over 446ms
INFO
0 ms 200 ms 400 ms 600 ms 800 ms FCP 661 ms LCP 899 mshttps://invest.ivpstudio.es// https://invest.ivpstudio.es/ — 200 — 2.4 KiB — 104 ms — http/1.1https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swapfonts.googleapis.com/css2?family=In... https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap — 200 — 1.2 KiB — 97 ms — h2https://invest.ivpstudio.es/assets/index-D-9mvMhf.js/assets/index-D-9mvMhf.js https://invest.ivpstudio.es/assets/index-D-9mvMhf.js — 200 — 99.7 KiB — 138 ms — http/1.1https://invest.ivpstudio.es/assets/index-CHObhwhT.css/assets/index-CHObhwhT.css https://invest.ivpstudio.es/assets/index-CHObhwhT.css — 200 — 19.1 KiB — 76 ms — http/1.1https://invest.ivpstudio.es/manifest.json/manifest.json https://invest.ivpstudio.es/manifest.json — 200 — 1.5 KiB — 104 ms — http/1.1https://invest.ivpstudio.es/api/auth/me/api/auth/me https://invest.ivpstudio.es/api/auth/me — 401 — 1.0 KiB — 36 ms — http/1.1https://invest.ivpstudio.es/favicon-32.png/favicon-32.png https://invest.ivpstudio.es/favicon-32.png — 200 — 2.8 KiB — 38 ms — http/1.1https://invest.ivpstudio.es/apple-touch-icon.png/apple-touch-icon.png https://invest.ivpstudio.es/apple-touch-icon.png — 200 — 31.6 KiB — 60 ms — http/1.1https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2fonts.gstatic.com/s/inter/v20/UcC73... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 200 — 47.3 KiB — 54 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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