vadiodes.com website review

27 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.1 s.

7 images could be 1.5 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 150 ms faster on a phone.

Your mobile performance score is 73 (desktop: 97). Pages that score under 90 lose visitors before the first paint.

About 67 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 440 ms faster on a phone.

2 KiB could be saved by minifying CSS.

3 third-party services load with your homepage (Google Tag Manager, Cloudflare and Google Analytics), adding 188 KiB and 119 ms of main-thread time.

2 long tasks block the main thread while loading, the longest for 80 ms. During a long task the page ignores taps.

About 73 KiB of JavaScript is downloaded but never used on this page.

Polyfills for old browsers add 10 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.

1 file is served with short cache lifetimes, so returning visitors download them again (4 KiB).

2 KiB could be saved by minifying JavaScript.

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 4.1 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Real visitors see the first content after 3.3 s (75th percentile). Good is under 1.8 s.

Real visitors wait 2.2 s for your server to start answering (75th percentile). Good is under 800 ms.

Your largest element takes 7.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Home mmWave and THz Solutions Products All Products Test an…”.

The page becomes fully interactive after 8.3 s. Good is under 3.8 s.

Real visitors wait 211 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' tap response (inp) went from 166 ms to 202 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

The first text or image appears after 2.4 s on a phone. Good is under 1.8 s.

Your homepage downloads 2.2 MB in 65 requests on a phone: images 1.7 MB (14), scripts 300 KiB (21) and stylesheets 146 KiB (25). Under 2 MB keeps phones on slow connections fast.

VA-Diodes-logo_white-1024x404.webp 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 0.63 g of CO₂e: 75.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

ARIA role should be appropriate for the element: 6 elements on the page fail this check, rated minor by axe-core.

No meta description, so Google writes its own snippet from whatever text it finds.

Your title is only 28 characters: “Home - Virginia Diodes, Inc.”. Between 30 and 65 characters leaves room to say what you do and for whom.

There are 2 <h1> headlines (“Home” and “mmWave and THz Solutions”). One clear main headline is easier for people and search engines.

The homepage links to 89 pages on vadiodes.com and 1 external page.

Your Organization JSON-LD is missing 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.

There is no https://vadiodes.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://vadiodes.com/about-vdi, https://vadiodes.com/new-menu-grid, https://vadiodes.com/vna-extenders-vnax, https://vadiodes.com/mixamc, https://vadiodes.com/signal-generator-extension-modules-sgx and https://vadiodes.com/compact-converters-cc and 9 others have no meta description, so Google writes the search snippet from whatever text it finds.

https://vadiodes.com/about-vdi, https://vadiodes.com/new-menu-grid, https://vadiodes.com/vna-extenders-vnax, https://vadiodes.com/mixamc, https://vadiodes.com/signal-generator-extension-modules-sgx and https://vadiodes.com/compact-converters-cc and 9 others have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 36 found) and read each the way a search engine does.

5 of 13 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

2 errors were logged to the browser console while the page loaded, for example “Cannot read properties of null (reading 'addEventListener')”.

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.

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 75 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 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.

Before a visitor clicks anything, the page loads Google Analytics and Google Tag Manager (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 4 cookies (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 3 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.