silanano.com website review

11 images could be 4.7 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 6.8 s faster on a phone.

5 third-party services load with your homepage (Google Tag Manager, Google Analytics and LinkedIn Ads and others), adding 15.8 MB and 362 ms of main-thread time.

b-cdn.net costs a phone 0 ms of main-thread work and 15.5 MB 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 272 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 990 ms faster on a phone.

Your mobile performance score is 71. Pages that score under 90 lose visitors before the first paint.

Google Tag Manager costs a phone 315 ms of main-thread work and 326 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.

1 file blocks the first paint until they finish downloading. Deferring or inlining it could save about 300 ms.

52 KiB could be saved by minifying JavaScript.

4 long tasks block the main thread while loading, the longest for 199 ms. During a long task the page ignores taps.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 150 ms).

About 28 KiB of CSS is downloaded but never applied on this page.

3 files are served with short cache lifetimes, so returning visitors download them again (26 KiB).

7 KiB could be saved by minifying CSS.

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

Your largest element takes 12.5 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Advanced battery technology for critical industries.”.

The page becomes fully interactive after 12.5 s. Good is under 3.8 s.

Scripts block taps and scrolling for 224 ms in total while the page loads. Good is under 200 ms.

10 images have no width and height attributes, so the layout jumps as each one loads.

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' tap response (inp) went from 83 ms to 91 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 23.6 MB in 40 requests on a phone: media 15.5 MB (4), images 7.3 MB (19) and scripts 601 KiB (7). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 6.70 g of CO₂e: 804.1 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

<html> element must have a lang attribute: 1 element on the page fails this check, rated serious by axe-core.

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

1 button has no accessible name, so screen readers announce just “button”.

All page content should be contained by landmarks: 2 elements on the page fail this check, rated moderate by axe-core.

The page has no <main> landmark, so screen-reader users cannot jump straight to the content.

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

Headings skip levels (h2 → h4 and h2 → h6), which makes the page harder to scan with a screen reader.

Elements with visible text labels do not have matching accessible names. (1 element).

Structured data found (BreadcrumbList, Organization and WebSite) but with 1 problem, for example “Organization: missing name”.

8 links have no real href, so search engines can't follow them.

4 links use generic text like “click here” or “learn more”, which tells Google nothing about the page behind them.

The homepage links to 62 pages on silanano.com and 13 external pages.

There is no https://www.silanano.com/llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.

https://www.silanano.com/applications/automotive, https://www.silanano.com/applications/consumer-products, https://www.silanano.com/applications/flight, https://www.silanano.com/applications/data-centers-and-robotics and https://www.silanano.com/applications/defense have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 22 found) and read each the way a search engine does.

2 errors were logged to the browser console while the page loaded, for example “Failed to load resource: the server responded with a status of 429 ()”.

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.

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

Your homepage shows a street address but no LocalBusiness JSON-LD, so Google and AI assistants have to guess your address, hours and phone from the page text.

A local customer looking to call finds no phone number on the homepage. Add one, ideally as a tap-to-call link.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

The homepage has only about 5 words of visible text; thin pages give Google and first-time buyers little to go on.

The homepage shows no opening hours. If customers visit or call, show when.

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

There is no link to Google or Apple Maps. A directions link is one tap for a phone visitor.

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

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.