diffusiondata.com website review

About 1.1 MB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 4.0 s faster on a phone.

30 files block the first paint until they finish downloading. Deferring or inlining them could save about 3.8 s.

12 files are served with short cache lifetimes, so returning visitors download them again (316 KiB).

Your mobile performance score is 36 (desktop: 62). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

8 third-party services load with your homepage (Google Tag Manager, hsappstatic.net and Facebook and others), adding 2.4 MB and 1.3 s of main-thread time.

About 147 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 750 ms faster on a phone.

Google Tag Manager costs a phone 438 ms of main-thread work and 554 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.

hsappstatic.net costs a phone 412 ms of main-thread work and 697 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.

Polyfills for old browsers add 64 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 350 ms faster on a phone.

11 long tasks block the main thread while loading, the longest for 323 ms. During a long task the page ignores taps.

A phone's processor spends 2.9 s on main-thread work while loading, 1.5 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

securityscorecard.io costs a phone 160 ms of main-thread work and 861 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.

2 KiB could be saved by minifying CSS.

6 images could be 59 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Desktop scores 62 but mobile only 36. A gap that wide usually means heavy scripts and images that hit phones hardest.

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.

The first text or image appears after 8.1 s on a phone. Good is under 1.8 s.

Your largest element takes 21.1 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Real-Time Data Delivery at Scale Software that delivers rea…”.

The page becomes fully interactive after 22.8 s. Good is under 3.8 s.

Visually, the page fills in at 11.5 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 833 ms in total while the page loads. Good is under 200 ms.

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

Chrome's UX Report (opens in a new tab) has too little real-visitor traffic for this site, so the figures here are lab measurements from Google's test phone on a throttled 4G connection.

Your homepage downloads 3.9 MB in 135 requests on a phone: scripts 2.6 MB (45), fonts 532 KiB (7) and images 489 KiB (36). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 1.12 g of CO₂e: 133.8 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

Some list items are not inside a list.

1 frame has no title, so screen-reader users cannot tell what it contains.

Some lists contain elements other than list items, which screen readers announce wrongly.

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

All page content should be contained by landmarks: 2 elements on the page fail this check, rated moderate by axe-core.

The viewport tag blocks pinch-zoom, which low-vision visitors rely on.

1 form field has no label, so screen readers announce an empty box and autofill guesses.

1 visible link has no text or label, so screen readers cannot say where it goes.

Structured data found (Organization and VideoObject) but with 3 problems, for example “Organization: sameAs is an empty list”.

1 link has no real href, so search engines can't follow it.

1 link use generic text like “click here” or “learn more”, which tells Google nothing about the page behind it.

The homepage links to 58 pages on diffusiondata.com and 19 external pages.

/resourcecat/customer-stories, /resourcecat/whitepapers, /resourcecat/platform-collateral, /solutions/kafka and /solutions/real-time-messaging have no meta description, so Google writes the search snippet from whatever text it finds.

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

We fetched 15 pages linked from your homepage (of 46 found) and read each the way a search engine does.

On a 390 px-wide phone the page scrolls sideways, a sign that something is wider than the screen.

1 third-party cookie is set on load; browsers are restricting these, so whatever relies on them breaks.

2 errors were logged to the browser console while the page loaded, for example “Access to font at 'https://diffusiondastg.wpengine.com/wp-content/uploads/elementor/google-fonts/fonts/roboto-kfo7cnqeu…”.

1 image is displayed at the wrong aspect ratio, so it looks stretched or squashed.

Large scripts ship without source maps.

Chrome logged issues while loading the page (“Cookie”).

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.

diffusiondata.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.

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 441 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, HubSpot and Meta Pixel (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 18 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 24 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.