vention.com website review

126 files are served with short cache lifetimes, so returning visitors download them again (44.3 MB).

About 1.3 MB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 4.5 s faster on a phone.

vention.io costs a phone 2.1 s of main-thread work and 1.4 MB of downloads while your page loads. That alone is enough to make taps feel slow. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

Your mobile performance score is 39. Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

A phone's processor spends 8.9 s on main-thread work while loading, 5.8 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

The page has 3,583 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

8 third-party services load with your homepage (vention.io, ZenDesk and Facebook and others), adding 3.0 MB and 3.3 s of main-thread time.

8 images could be 3.1 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

3 files block the first paint until they finish downloading. Deferring or inlining them could save about 950 ms.

20 long tasks block the main thread while loading, the longest for 619 ms. During a long task the page ignores taps.

ZenDesk costs a phone 435 ms of main-thread work and 475 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.

Polyfills for old browsers add 49 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 300 ms faster on a phone.

Google Tag Manager costs a phone 126 ms of main-thread work and 387 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.

About 14 KiB of CSS is downloaded but never applied on this page.

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.

Your largest element takes 23.8 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “We use cookies to personalise content and ads, to provide s…”.

The page becomes fully interactive after 29.0 s. Good is under 3.8 s.

Visually, the page fills in at 11.2 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 1.7 s in total while the page loads. Good is under 200 ms.

Real visitors wait 2.9 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Real visitors wait 250 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' tap response (inp) went from 171 ms to 267 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors see the first content after 2.1 s (75th percentile). Good is under 1.8 s.

Real visitors wait 1.2 s for your server to start answering (75th percentile). Good is under 800 ms.

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' largest content (lcp) went from 3.1 s to 3.3 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 73.6 MB in 234 requests on a phone: media 65.6 MB (8), images 4.3 MB (51) and scripts 3.4 MB (111). Under 2 MB keeps phones on slow connections fast.

3 images weigh 2.7 MB together. On a phone connection a single image that size takes seconds.

2 images are downloaded at several times the size a phone draws them, for example APP_FullFactoryFloor_Hero_V4.png at 4,096 px wide, shown at 360 px. Resized copies would save about 1.7 MB.

9 images (4.1 MB) are JPEG, PNG or GIF. The same pictures as WebP or AVIF are usually much smaller at the same quality, and every current browser shows them.

1 image further down the page (894 KiB) download before anyone scrolls to it. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 20.86 g of CO₂e: 2503.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

12 buttons have no accessible name, so screen readers announce just “button”.

Certain ARIA roles must be contained by particular parents: 9 elements on the page fail this check, rated critical by axe-core.

Required ARIA attributes must be provided: 7 elements on the page fail this check, rated critical by axe-core.

Certain ARIA roles must contain particular children: 2 elements on the page fail this check, rated critical by axe-core.

ARIA attributes must conform to valid values: 2 elements on the page fail this check, rated critical by axe-core.

17 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.

Some lists contain elements other than list items, which screen readers announce wrongly.

4 images have no alt text, which hurts accessibility and image search.

All page content should be contained by landmarks: 13 elements on the page fail this check, rated moderate by axe-core.

Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 1 element on the page fails this check, rated moderate by axe-core.

5 visible links have no text or label, so screen readers cannot say where they go.

Headings skip levels (h2 → h4), which makes the page harder to scan with a screen reader.

No structured data (JSON-LD), so Google can't show rich results such as your logo, ratings or FAQs.

The homepage links to 176 pages on vention.com and 14 external pages.

There is no Organization (or LocalBusiness) JSON-LD, so search engines and AI assistants have no machine-readable facts about who runs the site: its name, logo, profiles and contact details.

https://vention.com/actuators and https://vention.com/parts-library have no <h1> headline, so visitors and search engines get no clear main topic.

https://vention.com/parts-library and https://vention.com/industries/automotive took over 3 s to send their HTML from our server.

We fetched 15 pages linked from your homepage (of 74 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=187152518&tm=gtm002&Ver=2&mid=cc883edb-9064-463a-936a-edc3418de842&bo=1&sid=c3d68cb0d50211f19f237dc02b78312d&vid=c3d6c470d50211f19ac89787b5a0f99f&vids=1&msclkid=N&pi=9.

The page uses 1 deprecated browser API that will stop working in future browsers (“Unload event listeners are deprecated and will be removed.”).

3 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

Large scripts ship without source maps.

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

Social proof on the homepage: 4 testimonial or review blocks. Pairing it with named testimonials or customer logos makes it far more convincing.

There is no form on the homepage, so every lead has to click through to another page first.

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 1,985 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, HubSpot and LinkedIn Insight and 4 mores (measured from a US location before any click). A consent tool (Cookiebot) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 29 cookies (measured from a US location before any click).

Loading the homepage contacts 48 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.