dt.com website review

About 359 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 2.1 s faster on a phone.

39 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.6 s.

7 images could be 1.0 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 750 ms faster on a phone.

Your mobile performance score is 53 (desktop: 73). Pages that score under 90 lose visitors before the first paint.

8 third-party services load with your homepage (Google Tag Manager, Clarity and Bing Ads and others), adding 3.6 MB and 557 ms of main-thread time.

7 files are served with short cache lifetimes, so returning visitors download them again (108 KiB).

Google Tag Manager costs a phone 465 ms of main-thread work and 517 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.

A phone's processor spends 3.2 s on main-thread work while loading, 1.3 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

lab0.io costs a phone 0 ms of main-thread work and 3.1 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.

3 KiB could be saved by minifying JavaScript.

The page has 1,959 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

6 long tasks block the main thread while loading, the longest for 178 ms. During a long task the page ignores taps.

Polyfills for old browsers add 12 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 50 ms).

About 26 KiB of CSS is downloaded but never applied on this page.

6 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 4.9 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Your largest element takes 12.6 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Phone UI”.

The page becomes fully interactive after 12.6 s. Good is under 3.8 s.

The first text or image appears after 4.0 s on a phone. Good is under 1.8 s.

Visually, the page fills in at 7.8 s (Speed Index). Good is under 3.4 s.

Real visitors wait 282 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Real visitors see the first content after 2.1 s (75th percentile). Good is under 1.8 s.

Real visitors wait 1.1 s for your server to start answering (75th percentile). Good is under 800 ms.

Scripts block taps and scrolling for 296 ms in total while the page loads. Good is under 200 ms.

Your homepage downloads 5.9 MB in 122 requests on a phone: media 3.1 MB (4), images 1.6 MB (17) and scripts 989 KiB (41). Under 2 MB keeps phones on slow connections fast.

Christal-Bemon-Blog-header-1500x620.png weighs 905 KiB. On a phone connection a single image that size takes seconds.

3 images (1.3 MB) are JPEG, PNG or GIF. The same pictures as WebP or AVIF are usually much smaller at the same quality, and every current browser shows them.

phone-ui-animation.avif 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).

1 image is downloaded at several times the size a phone draws it, for example Christal-Bemon-Blog-header-1500x620.png at 1,500 px wide, shown at 351 px. Resized copies would save about 459 KiB.

By the Sustainable Web Design model, a visit to your homepage emits about 1.67 g of CO₂e: 199.9 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

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

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

The homepage links to 112 pages on dt.com and 5 external pages.

/avenir/guest-travel has no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 41 found) and read each the way a search engine does.

2 images failed to load on a phone, for example https://bat.bing.com/action/0?ti=97223168&Ver=2&mid=c4abfa62-6cbb-4e0d-9298-389565df0e50&bo=3&sid=95ee23d0d18211f1aa07353332f4d942&vid=95ee4530d18211f1abead5a4acc6a375&vids=0&msclkid=N&pi=918639831&lg.

3 of 9 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

6 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 ()”.

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

No Permissions-Policy header to switch off camera, microphone and location for embedded content.

X-XSS-Protection is set to “1; mode=block”; the header is deprecated and can introduce bugs. Use 0 or remove it.

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

dt.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.

dt.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.

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 542 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, Google Analytics, Google Tag Manager, Microsoft Ads and Microsoft Clarity (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 18 cookies, 3 of them by other companies (measured from a US location before any click).

Loading the homepage contacts 33 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.