indevolt.com website review

YouTube costs a phone 3.6 s of main-thread work and 5.8 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.

A phone's processor spends 12.8 s on main-thread work while loading, 6.0 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

Your mobile performance score is 44. Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

8 third-party services load with your homepage (YouTube, Google Tag Manager and Klaviyo and others), adding 6.6 MB and 4.3 s of main-thread time.

About 3.3 MB of JavaScript is downloaded but never used on this page.

14 images could be 905 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 450 ms faster on a phone.

20 long tasks block the main thread while loading, the longest for 452 ms. During a long task the page ignores taps.

5 files block the first paint until they finish downloading. Deferring or inlining them could save about 300 ms.

Google Tag Manager costs a phone 261 ms of main-thread work and 178 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.

Klaviyo costs a phone 159 ms of main-thread work and 307 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.

The page has 1,787 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

About 191 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.

12 files are served with short cache lifetimes, so returning visitors download them again (45 KiB).

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

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.

Visually, the page fills in at 21.0 s (Speed Index). Good is under 3.4 s.

The page becomes fully interactive after 53.4 s. Good is under 3.8 s.

Scripts block taps and scrolling for 2.0 s in total while the page loads. Good is under 200 ms.

Your largest element takes 5.0 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Indevolt Europe”.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 114 ms to 124 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 9.2 MB in 323 requests on a phone: scripts 6.0 MB (109), images 1.3 MB (32) and other files 686 KiB (117). Under 2 MB keeps phones on slow connections fast.

3000-ac-ksp-mob.jpg is on the first screen but marked loading="lazy", so the browser waits before fetching it and the page looks finished later. Load it eagerly (and give it fetchpriority="high" if it is the main image).

By the Sustainable Web Design model, a visit to your homepage emits about 2.62 g of CO₂e: 314.2 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

Interactive controls must not be nested: 2 elements on the page fail this check, rated serious by axe-core.

2 tap targets are too small or too close together to hit reliably with a finger.

Elements must only use permitted ARIA attributes: 1 element on the page fails this check, rated serious by axe-core.

All page content should be contained by landmarks: 6 elements on the page fail this check, rated moderate by axe-core.

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

1 form field has no label, so screen readers announce an empty box and autofill guesses.

Headings should not be empty: 2 elements on the page fail this check, rated minor by axe-core.

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

Your <h1> is empty.

The homepage links to 95 pages on indevolt.com and 30 external pages.

/products/lan-module-for-solidflex-2000-and-powerflex-2000-series is marked noindex but linked from your homepage. If it is meant to be found, remove the noindex.

/collections/plug-in-home-battery, /collections/extension-battery and /collections/accessories have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 39 found) and read each the way a search engine does.

18 of 35 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

5 third-party cookies are set on load; browsers are restricting these, so whatever relies on them breaks.

1 error was logged to the browser console while the page loaded, for example “Cannot set properties of null (setting 'innerHTML')”.

Chrome logged issues while loading the page (“Cookie”).

HSTS is set, but max-age is 91 days; one year is the recommended minimum.

No Referrer-Policy header, so full URLs can leak to the sites you link to.

No Permissions-Policy header to switch off camera, microphone and location for embedded content.

X-XSS-Protection is set to “1; mode=block”; the header is deprecated and can introduce bugs. Use 0 or remove it.

There is no /.well-known/security.txt telling researchers how to report a security problem to you.

indevolt.com's DNS answers are not signed. DNSSEC stops attackers forging them to send visitors or email elsewhere; most registrars switch it on in a click, though most sites still run without it.

Social proof on the homepage: 16 testimonial or review blocks. Pairing it with named testimonials or customer logos makes it far more convincing.

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 1,898 words of visible text.

DMARC is set to p=none, so mail pretending to be indevolt.com is still delivered. Add a report address, check the reports, then move to quarantine.

Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Klaviyo and Microsoft Ads and 1 more (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 13 cookies, 1 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 26 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.