advantech-bb.com website review

13 images could be 4.8 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 6.7 s faster on a phone.

About 536 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 3.0 s faster on a phone.

4 files block the first paint until they finish downloading. Deferring or inlining them could save about 3.1 s.

296 KiB could be saved by minifying JavaScript.

16 files are served with short cache lifetimes, so returning visitors download them again (263 KiB).

Your mobile performance score is 5 (desktop: 8). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

A phone's processor spends 5.8 s on main-thread work while loading, 3.4 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

About 162 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 870 ms faster on a phone.

13 long tasks block the main thread while loading, the longest for 702 ms. During a long task the page ignores taps.

7 third-party services load with your homepage (Google Tag Manager, advantech.com and cdn-cookieyes.com and others), adding 2.4 MB and 315 ms of main-thread time.

cdn-website.com costs a phone 0 ms of main-thread work and 1.7 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.

The page has 1,661 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Polyfills for old browsers add 18 KiB JavaScript that modern phones do not need.

9 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.

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

For real visitors the layout shifts by 0.85 (75th percentile). Good is under 0.1.

Real visitors see the first content after 6.7 s (75th percentile). Good is under 1.8 s.

The first text or image appears after 11.8 s on a phone. Good is under 1.8 s.

Your largest element takes 23.9 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the element shown below.

Visually, the page fills in at 21.5 s (Speed Index). Good is under 3.4 s.

The page becomes fully interactive after 29.5 s. Good is under 3.8 s.

The layout shifts by 0.859 while loading, so content jumps under the reader's thumb. Good is under 0.1.

Scripts block taps and scrolling for 1.5 s in total while the page loads. Good is under 200 ms.

Real visitors wait 368 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Real visitors wait 1.8 s for your server to start answering (75th percentile). Good is under 800 ms.

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

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' tap response (inp) went from 287 ms to 292 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' largest content (lcp) went from 7.4 s to 7.0 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 8.9 MB in 95 requests on a phone: images 6.3 MB (34), scripts 1.8 MB (19) and other files 557 KiB (34). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 2.53 g of CO₂e: 303.3 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

1 element use ARIA attributes their role does not allow, which confuses screen readers.

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

Links must have discernible text: 1 element on the page fails this check, rated serious by axe-core.

Page should contain a level-one heading: 1 element on the page fails this check, rated moderate by axe-core.

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

Elements with role="none" or role="presentation" have conflicts (4 elements).

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

There is no <h1>, so neither visitors nor Google get a clear main headline.

Your title is only 2 characters: “en”. Between 30 and 65 characters leaves room to say what you do and for whom.

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

No Open Graph image (also missing: og:title, og:description), so links shared on LinkedIn, Slack or Facebook show no preview picture.

The homepage links to only 1 page on your own site, so visitors and crawlers find few routes into the rest of it.

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

No twitter:card tag. X falls back to Open Graph, which is incomplete here.

A phone browser shows 185 words, but the HTML your server sends has only 7. GPTBot, ClaudeBot and PerplexityBot read that HTML without running JavaScript, so they see an almost empty page. Server-side rendering or pre-rendering fixes it.

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.

There is no /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.

19 of 23 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

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

Large scripts ship without source maps.

Opening https://advantech-bb.com goes through 3 redirects before the homepage loads.

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

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

iotmart.com has no CAA record, so any certificate authority may issue a certificate for it. A CAA record naming your provider (for example letsencrypt.org) closes that door.

iotmart.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.

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.

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 185 words of visible text; thin pages give Google and first-time buyers little to go on.

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.

We found no DKIM key on the selectors the big email providers use. If you send through one of them, turning on DKIM signing improves delivery.

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 Tag Manager (measured from a US location before any click). A consent tool (CookieYes) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 13 cookies (measured from a US location before any click).

Loading the homepage contacts 9 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.