Skip to content
https://profittolife.com

Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
94
GRADE
A
FIX
1
REVIEW
5
PASS
17
INFO
3

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

Mobile Desktop
81
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
94
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.

1.64 s

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

4.51 s

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

172 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.

2.31 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.

4.67 s

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
26
17 PASS 5 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: private, no-cache, no-store, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

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

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
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
C
JS Execution Cost
Action
1702ms total JS execution
REVIEW
1702ms total JS execution
Warning::
https://profittolife.com/: 746ms CPU time
Warning::
https://profittolife.com/_next/static/chunks/27t_q...: 518ms CPU time
Warning::
Unattributable: 309ms CPU time
Info::
https://profittolife.com/_next/static/chunks/2bub_...: 128ms CPU time

Main Thread Breakdown

Other 33% Script Evaluation 32% Style & Layout 22% Script Parsing & Compilation 5% Rendering 5%
ScriptTotalScriptingParse/CompileParty
https://profittolife.com/746ms6ms15ms1st
https://profittolife.com/_next/static/chunks/27t_qfc-3_lzs.js518ms421ms34ms1st
Unattributable309ms21ms0ms1st
https://profittolife.com/_next/static/chunks/2bub_m4veo3fm.js128ms94ms21ms1st
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.
B
Document Compression
Document response uses gzip; brotli would be ~20% smaller
REVIEW
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.
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
334 KB transferred, 25 requests
PASS
334 KB transferred, 25 requests
Info::
Page weighs 735 KB (334 KB transferred)
Info::
25 HTTP requests
Info::
Estimated 0.07 g CO2 per page load
334 KB / 2.4 MB budget
334 KB transferred
25 requests
0.07 g CO2 per page load
JavaScript 164.0 KiB 49%
Images 67.6 KiB 20%
Fonts 58.2 KiB 17%
CSS 16.2 KiB 5%
HTML 14.5 KiB 4%
Other 12.4 KiB 4%
Other 1020 B 0%
0 2.4 MB 4.9 MB
Under budget
A
Third-Party Impact
20% third-party, 0 ms blocking
PASS
20% third-party, 0 ms blocking
Info::
Third-party code accounts for 20% of page weight (67.6 KiB of 333.9 KiB)
Info::
Third-party blocking time is low (0 ms)
80%
20%
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
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Info::
All images are well-optimized
1 images 68 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
Font Loading
3 fonts (58 KB)
PASS
3 fonts (58 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

58 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 1.6 s LCP 4.5 shttps://profittolife.com/_next/static/media/7ebf22b5a21034f8-s.p.3j3877k49yy0l.woff27ebf22b5a21034f8-s.p.3j... https://profittolife.com/_next/static/media/7ebf22b5a21034f8-s.p.3j3877k49yy0l.woff2 — 15.8 KiB — 117 ms — font-display: swaphttps://profittolife.com/_next/static/media/e41d5df559864f9e-s.p.1g73gv09-xcb6.woff2e41d5df559864f9e-s.p.1g... https://profittolife.com/_next/static/media/e41d5df559864f9e-s.p.1g73gv09-xcb6.woff2 — 15.2 KiB — 236 ms — font-display: swaphttps://profittolife.com/_next/static/media/fba5a26ea33df6a3-s.p.18rizl4rsrl42.woff2fba5a26ea33df6a3-s.p.18... https://profittolife.com/_next/static/media/fba5a26ea33df6a3-s.p.18rizl4rsrl42.woff2 — 27.1 KiB — 350 ms — font-display: swap
7ebf22b5a21034f8-s.p.3j... woff2 swap
Size 16 KB
Load time 117 ms
Start 558 ms
Risk FOUT — text flashes from fallback to web font
e41d5df559864f9e-s.p.1g... woff2 swap
Size 15 KB
Load time 236 ms
Start 565 ms
Risk FOUT — text flashes from fallback to web font
fba5a26ea33df6a3-s.p.18... woff2 swap
Size 27 KB
Load time 350 ms
Start 565 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
9 scripts, 33 KB unused
PASS
9 scripts, 33 KB unused
Warning::
https://profittolife.com/_next/static/chunks/27t_q...: 33 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 33 KB
33 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://profittolife.com/_next/static/chunks/27t_qfc-3_lzs.js83 KB33 KB (40%)✓1st
https://profittolife.com/_next/static/chunks/310vm2bl3xxpt.js3 KB—✓1st
https://profittolife.com/_next/static/chunks/19mx3mg6lkumu.js9 KB—✓1st
https://profittolife.com/_next/static/chunks/2bub_m4veo3fm.js42 KB—✓1st
https://profittolife.com/_next/static/chunks/0ay527mnq1105.js11 KB—✓1st
https://profittolife.com/_next/static/chunks/turbopack-1_7c9ib2coeoy.js5 KB—✓1st
https://profittolife.com/_next/static/chunks/3fntmmi971322.js4 KB—✓1st
https://profittolife.com/_next/static/chunks/0bahwiubvn81y.js5 KB—✓1st
https://profittolife.com/_next/static/chunks/3m1yrezc15pzq.js2 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

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
5 hints, 0 missing preconnects
PASS
5 hints, 0 missing preconnects
Info::
Page uses 5 resource hint(s)

Current Resource Hints

preconnect
—
preload
5
dns-prefetch
—
prefetch
—

5 resource hints configured

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: private, 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: rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch,...
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.
A+
Page Weight Inventory
25 resources · 334 KB · 33 KB savings available
PASS
25 resources · 334 KB · 33 KB savings available
Info::
Within 1MB page-weight target
Got: 334 KB
Info::
1 third-party resources (20% of weight)
25 resources · 333.9 KiB · 1 third-party Within 1MB page-weight target
JavaScript 49% · 164.0 KiB
Image 21% · 68.6 KiB
Font 17% · 58.2 KiB
CSS 5% · 16.2 KiB
Document 4% · 14.5 KiB
Other 4% · 12.4 KiB

~33.3 KiB of savings available

Remove unused JavaScript: 33.3 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
JavaScript Blocking
1 JS blocking issue(s) detected
PASS
1 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.
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
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
25 requests over 1725ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 1.6 s LCP 4.5 shttps://profittolife.com// https://profittolife.com/ — 200 — 14.5 KiB — 532 ms — http/1.1https://profittolife.com/_next/static/media/7ebf22b5a21034f8-s.p.3j3877k49yy0l.woff2/_next/static/media/7ebf22b5a21034f... https://profittolife.com/_next/static/media/7ebf22b5a21034f8-s.p.3j3877k49yy0l.woff2 — 200 — 15.8 KiB — 117 ms — http/1.1https://profittolife.com/_next/static/media/e41d5df559864f9e-s.p.1g73gv09-xcb6.woff2/_next/static/media/e41d5df559864f9... https://profittolife.com/_next/static/media/e41d5df559864f9e-s.p.1g73gv09-xcb6.woff2 — 200 — 15.2 KiB — 236 ms — http/1.1https://profittolife.com/_next/static/media/fba5a26ea33df6a3-s.p.18rizl4rsrl42.woff2/_next/static/media/fba5a26ea33df6a... https://profittolife.com/_next/static/media/fba5a26ea33df6a3-s.p.18rizl4rsrl42.woff2 — 200 — 27.1 KiB — 350 ms — http/1.1https://profittolife.com/_next/static/chunks/25kljqm1grhmh.css/_next/static/chunks/25kljqm1grhmh.... https://profittolife.com/_next/static/chunks/25kljqm1grhmh.css — 200 — 16.2 KiB — 228 ms — http/1.1https://images.unsplash.com/photo-1556742049-0cfed4f6a45d?auto=format&fit=crop&w=1200&q=90images.unsplash.com/photo-155674204... https://images.unsplash.com/photo-1556742049-0cfed4f6a45d?auto=format&fit=crop&w=1200&q=90 — 200 — 67.6 KiB — 29 ms — h2https://profittolife.com/_next/static/chunks/310vm2bl3xxpt.js/_next/static/chunks/310vm2bl3xxpt.... https://profittolife.com/_next/static/chunks/310vm2bl3xxpt.js — 200 — 2.6 KiB — 330 ms — http/1.1https://profittolife.com/_next/static/chunks/19mx3mg6lkumu.js/_next/static/chunks/19mx3mg6lkumu.... https://profittolife.com/_next/static/chunks/19mx3mg6lkumu.js — 200 — 8.9 KiB — 336 ms — http/1.1https://profittolife.com/_next/static/chunks/2bub_m4veo3fm.js/_next/static/chunks/2bub_m4veo3fm.... https://profittolife.com/_next/static/chunks/2bub_m4veo3fm.js — 200 — 42.2 KiB — 365 ms — http/1.1https://profittolife.com/_next/static/chunks/27t_qfc-3_lzs.js/_next/static/chunks/27t_qfc-3_lzs.... https://profittolife.com/_next/static/chunks/27t_qfc-3_lzs.js — 200 — 82.9 KiB — 373 ms — http/1.1https://profittolife.com/_next/static/chunks/0ay527mnq1105.js/_next/static/chunks/0ay527mnq1105.... https://profittolife.com/_next/static/chunks/0ay527mnq1105.js — 200 — 11.3 KiB — 138 ms — http/1.1https://profittolife.com/_next/static/chunks/turbopack-1_7c9ib2coeoy.js/_next/static/chunks/turbopack-1_7c... https://profittolife.com/_next/static/chunks/turbopack-1_7c9ib2coeoy.js — 200 — 4.6 KiB — 121 ms — http/1.1https://profittolife.com/_next/static/chunks/3fntmmi971322.js/_next/static/chunks/3fntmmi971322.... https://profittolife.com/_next/static/chunks/3fntmmi971322.js — 200 — 4.4 KiB — 118 ms — http/1.1https://profittolife.com/_next/static/chunks/0bahwiubvn81y.js/_next/static/chunks/0bahwiubvn81y.... https://profittolife.com/_next/static/chunks/0bahwiubvn81y.js — 200 — 5.5 KiB — 127 ms — http/1.1https://profittolife.com/_next/static/chunks/3m1yrezc15pzq.js/_next/static/chunks/3m1yrezc15pzq.... https://profittolife.com/_next/static/chunks/3m1yrezc15pzq.js — 200 — 1.6 KiB — 117 ms — http/1.1https://profittolife.com/icon.svg?icon.25jl08g7lcs72.svg/icon.svg?icon.25jl08g7lcs72.svg https://profittolife.com/icon.svg?icon.25jl08g7lcs72.svg — 200 — 1020 B — 128 ms — http/1.1https://profittolife.com/productos?_rsc=5CB68i4pnAekjehf/productos?_rsc=5CB68i4pnAekjehf https://profittolife.com/productos?_rsc=5CB68i4pnAekjehf — 200 — 992 B — 146 ms — http/1.1https://profittolife.com/buscar?_rsc=5CB68i4pnAekjehf/buscar?_rsc=5CB68i4pnAekjehf https://profittolife.com/buscar?_rsc=5CB68i4pnAekjehf — 200 — 992 B — 161 ms — http/1.1https://profittolife.com/carrito?_rsc=5CB68i4pnAekjehf/carrito?_rsc=5CB68i4pnAekjehf https://profittolife.com/carrito?_rsc=5CB68i4pnAekjehf — 200 — 993 B — 150 ms — http/1.1https://profittolife.com/legal/afiliados?_rsc=5CB68i4pnAekjehf/legal/afiliados?_rsc=5CB68i4pnAekj... https://profittolife.com/legal/afiliados?_rsc=5CB68i4pnAekjehf — 200 — 1010 B — 157 ms — http/1.1https://profittolife.com/?_rsc=tXyZJ52UQVBCVsD3/?_rsc=tXyZJ52UQVBCVsD3 https://profittolife.com/?_rsc=tXyZJ52UQVBCVsD3 — 200 — 1.6 KiB — 131 ms — http/1.1https://profittolife.com/productos?_rsc=tXyZJ52UQVBCVsD3/productos?_rsc=tXyZJ52UQVBCVsD3 https://profittolife.com/productos?_rsc=tXyZJ52UQVBCVsD3 — 200 — 1.7 KiB — 176 ms — http/1.1https://profittolife.com/buscar?_rsc=tXyZJ52UQVBCVsD3/buscar?_rsc=tXyZJ52UQVBCVsD3 https://profittolife.com/buscar?_rsc=tXyZJ52UQVBCVsD3 — 200 — 1.7 KiB — 173 ms — http/1.1https://profittolife.com/carrito?_rsc=tXyZJ52UQVBCVsD3/carrito?_rsc=tXyZJ52UQVBCVsD3 https://profittolife.com/carrito?_rsc=tXyZJ52UQVBCVsD3 — 200 — 1.7 KiB — 172 ms — http/1.1https://profittolife.com/legal/afiliados?_rsc=tXyZJ52UQVBCVsD3/legal/afiliados?_rsc=tXyZJ52UQVBCV... https://profittolife.com/legal/afiliados?_rsc=tXyZJ52UQVBCVsD3 — 200 — 1.7 KiB — 128 ms — http/1.1
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization
1 images, 67 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

1

Total Size

67 KB

1 missing dimensions 1 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback