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desktop · Mon, May 18, 2026 12:19 PM ·

demo

Perf

100/100

Global

93/100

Performance

Lighthouse Performance score

Accessibility

Lighthouse Accessibility score

-8 vs prev

Best Practices

Lighthouse Best Practices score

+4 vs prev

SEO

Lighthouse SEO score

-9 vs prev

Core Web Vitals

LCP

Largest Contentful Paint — time until the largest visible content element is rendered. Good = under 2.5s.

1020ms

Largest Contentful Paint

CLS

Cumulative Layout Shift — how much visible content unexpectedly shifts during load. Good = under 0.1.

0.02

Cumulative Layout Shift

INP

Interaction to Next Paint — latency between user input and the next paint. Good = under 200ms.

150ms

Interaction to Next Paint

TTFB

Time to First Byte — how long the server takes to respond with the first byte. Good = under 800ms.

291ms

Time to First Byte

Front-end ↔ Back-end breakdown

LCP composition 1020ms total

backend 291ms (28.5%)

frontend 729ms (71.5%)

Backend telemetry

Queries

19 (22 unique)

Query time

224ms

Memory peak

64.0MB

Cache hit rate

98%

Recommendations

performance

Eliminate render-blocking resources

Info

View all occurrences

Resources in the head block first paint until they download. Defer or inline critical CSS.

Render-blocking resources in <head> delay first paint until the browser downloads and parses them. Every kilobyte adds latency, especially on slow networks.

Lighthouse: Eliminate render-blocking resources web.dev: Defer non-critical CSS

Recommended

<!-- Defer non-critical scripts -->
<script src="analytics.js" defer></script>

<!-- Async for independent scripts -->
<script src="ads.js" async></script>

Avoid

<!-- Blocks parsing until downloaded -->
<script src="jquery.js"></script>

Page details

Page weight

1,002 KB

HTTP requests

DOM elements

1,148

Render-blocking

167ms

LCP element

main > section.hero > img <img src="/images/hero.jpg" loading="eager">

Resource breakdown

Type	Count	Size
script	13	468 KB
stylesheet	5	141 KB
image	11	736 KB
font	3	66 KB
document	1	26 KB

Third-party impact

Entity	Transfer	Blocking	Main thread
Google Analytics	23 KB	60ms	100ms

Main thread breakdown

Slowest requests

URL	Type	Size	Duration
`vendor.js`	Script	371 KB	305ms
`products`	XHR	24 KB	230ms

Diagnostics

Critical request chain depth: 3 levels
Top JS execution costs: app.js 427ms

vendor.js 276ms