sleve.co website review

About 298 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.5 s faster on a phone.

Your mobile performance score is 54. Pages that score under 90 lose visitors before the first paint.

8 third-party services load with your homepage (Google Tag Manager, Hotjar and Shopify and others), adding 949 KiB and 745 ms of main-thread time.

13 files are served with short cache lifetimes, so returning visitors download them again (67 KiB).

Google Tag Manager costs a phone 285 ms of main-thread work and 337 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

A phone's processor spends 2.3 s on main-thread work while loading, 1.2 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

5 long tasks block the main thread while loading, the longest for 217 ms. During a long task the page ignores taps.

About 36 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 150 ms faster on a phone.

1 file blocks the first paint until they finish downloading. Deferring or inlining it could save about 150 ms.

Polyfills for old browsers add 19 KiB JavaScript that modern phones do not need.

1 image could be 17 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.

Real Chrome users on phones do not pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)). Google uses this in ranking.

Real visitors wait 5.3 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Real visitors see the first content after 5.6 s (75th percentile). Good is under 1.8 s.

Your largest element takes 16.5 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

The page becomes fully interactive after 16.6 s. Good is under 3.8 s.

Visually, the page fills in at 6.8 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 3.4 s on a phone. Good is under 1.8 s.

Scripts block taps and scrolling for 349 ms in total while the page loads. Good is under 200 ms.

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' tap response (inp) went from 158 ms to 171 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' largest content (lcp) went from 4.5 s to 4.3 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 2.4 MB in 229 requests on a phone: scripts 1.1 MB (90), other files 754 KiB (102) and images 438 KiB (29). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 0.69 g of CO₂e: 83.3 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

1 text element doesn't have enough contrast against the background to read easily, especially outdoors on a phone.

Scrollable region must have keyboard access: 1 element on the page fails this check, rated serious by axe-core.

The viewport tag blocks pinch-zoom, which low-vision visitors rely on.

Alternative text of images should not be repeated as text: 1 element on the page fails this check, rated minor by axe-core.

Your meta description is 213 characters; Google truncates after about 160, so the end of your pitch is cut.

The homepage links to 57 pages on sleve.co and 3 external pages.

Your Organization JSON-LD is missing logo, sameAs (social profiles), description and contact details. These are the facts AI assistants use to describe a business and to tell it apart from others with a similar name.

https://sleve.co/pages/ofertas-sleve, https://sleve.co/pages/productos and https://sleve.co/products/pulse-spc have no meta description, so Google writes the search snippet from whatever text it finds.

https://sleve.co/collections/over-ear, https://sleve.co/collections/true-wireless, https://sleve.co/collections/in-ear and https://sleve.co/collections/baterias-externas use the same meta description. A description written for each page earns more clicks.

https://sleve.co/pages/ofertas-sleve, https://sleve.co/pages/productos, https://sleve.co/collections/over-ear, https://sleve.co/collections/in-ear and https://sleve.co/collections/baterias-externas have no <h1> headline, so visitors and search engines get no clear main topic.

https://sleve.co/pages/seguimiento-enviame has under 150 words in the HTML. Thin pages rarely rank; if the text loads with JavaScript, crawlers that don't run it see even less.

We fetched 15 pages linked from your homepage (of 29 found) and read each the way a search engine does.

1 image failed to load on a phone, for example https://bat.bing.com/action/0?ti=187166074&Ver=2&mid=9de6b578-a67b-4007-8bb1-687af7689821&bo=1&sid=3276d6f0ddaa11f18bb913e22a744ff5&vid=3276d140ddaa11f1b10af9fe74228cfc&vids=1&msclkid=N&pi=918639831&l.

21 of 40 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

1 error was logged to the browser console while the page loaded, for example “Shopify's Google Analytics stub called with: [array Array] See https://help.shopify.com/manual/promoting-marketing/pixe…”.

On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.

We found no call-to-action buttons or links (such as “Book a demo” or “Get a quote”) anywhere on the homepage.

No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

Your phone number appears as text but isn't a tel: link, so phone visitors can't tap to call.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

The homepage carries about 290 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Hotjar and Klaviyo and 4 mores (measured from a US location before any click). No consent tool was detected. Visitors from the EU, UK and several US states must be asked first.

Opening the homepage sets 25 cookies, 3 of them by other companies (measured from a US location before any click).

No known cookie consent tool loads with the page. Some sites build their own banner, and some only show one to visitors from the EU.

Loading the homepage contacts 42 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.