acs.it website review

About 482 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 2.3 s faster on a phone.

Your mobile performance score is 64. Pages that score under 90 lose visitors before the first paint.

4 third-party services load with your homepage (Google Tag Manager, Cookie-Script.com and DatoCMS and others), adding 1,022 KiB and 620 ms of main-thread time.

Google Tag Manager costs a phone 571 ms of main-thread work and 528 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.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 300 ms).

A phone's processor spends 2.3 s on main-thread work while loading, 935 ms of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

DatoCMS costs a phone 0 ms of main-thread work and 456 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.

5 images could be 154 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 100 ms faster on a phone.

9 long tasks block the main thread while loading, the longest for 210 ms. During a long task the page ignores taps.

1 file is served with short cache lifetimes, so returning visitors download them again (37 KiB).

Polyfills for old browsers add 22 KiB JavaScript that modern phones do not need.

About 12 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 9.6 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Sul nostro sito web utilizziamo cookie o tecnologie simili,…”.

The page becomes fully interactive after 9.7 s. Good is under 3.8 s.

Real visitors wait 3.1 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Real visitors wait 305 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Real visitors wait 996 ms for your server to start answering (75th percentile). Good is under 800 ms.

Scripts block taps and scrolling for 398 ms in total while the page loads. Good is under 200 ms.

Visually, the page fills in at 3.9 s (Speed Index). Good is under 3.4 s.

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

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 322 ms to 296 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 3.1 s to 3.0 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

1 image is downloaded at several times the size a phone draws it, for example 1688983170-security.webp at 600 px wide, shown at 190 px. Resized copies would save about 5 KiB.

5 images further down the page (290 KiB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 0.52 g of CO₂e: 62.3 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

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

2 form fields have no label, so screen readers announce an empty box and autofill guesses.

Headings skip levels (h1 → h6, h3 → h6 and h2 → h6), which makes the page harder to scan with a screen reader.

Your title is only 25 characters: “ACS - Azienda informatica”. Between 30 and 65 characters leaves room to say what you do and for whom.

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

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.

The homepage links to 93 pages on acs.it and 19 external pages.

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.

We fetched 15 pages linked from your homepage (of 61 found) and read each the way a search engine does.

3 of 12 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

No Content-Security-Policy header, the main browser-side defence against injected scripts.

Neither X-Frame-Options nor a CSP frame-ancestors policy is set, so any site can embed yours in a frame.

X-Content-Type-Options: nosniff is missing, so browsers may guess file types.

Opening https://acs.it goes through 3 redirects before the homepage loads.

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.

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

acs.it 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.

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 phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

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 477 words of visible text.

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 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 1 cookie (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 4 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.