da-com.com website review

About 70 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 300 ms faster on a phone.

nitrocdn.com costs a phone 0 ms of main-thread work and 305 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.

About 129 KiB of CSS is downloaded but never applied on this page.

4 third-party services load with your homepage (Google Tag Manager, nitrocdn.com and Other Google APIs/SDKs and others), adding 464 KiB and 80 ms of main-thread time.

3 long tasks block the main thread while loading, the longest for 106 ms. During a long task the page ignores taps.

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

Real visitors wait 1.2 s for your server to start answering (75th percentile). Good is under 800 ms.

Your largest element takes 3.2 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “da-com corporation logo”.

The page becomes fully interactive after 3.9 s. Good is under 3.8 s.

Over the last 25 four-week periods to 2026-10-10, real Chrome visitors' largest content (lcp) went from 2.2 s to 2.2 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 2.2 MB in 78 requests on a phone: other files 1.7 MB (64), scripts 158 KiB (1) and stylesheets 155 KiB (4). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 0.63 g of CO₂e: 75.3 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

All page content should be contained by landmarks: 3 elements on the page fail this check, rated moderate by axe-core.

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

3 links inside paragraphs rely on colour alone to stand out.

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

Structured data found (Organization, ProfessionalService and WebSite) but with 1 problem, for example “Organization: sameAs is an empty list”.

No Open Graph image, so links shared on LinkedIn, Slack or Facebook show no preview picture.

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

The homepage links to 125 pages on da-com.com and 54 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.

/dw-ap has no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 30 found) and read each the way a search engine does.

7 of 27 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

2 links from your homepage to your own site are broken, for example https://da-com.com/cdn-cgi/l/email-protection (404).

No Strict-Transport-Security header, so browsers may still try plain http first on a return visit.

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.

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.

da-com.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.

da-com.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: 1 trust badge. Pairing it with named testimonials or customer logos makes it far more convincing.

The homepage has only about 219 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.

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

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 3 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 5 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.