corellium.com website review

8 images could be 991 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 3.5 s faster on a phone.

49 files are served with short cache lifetimes, so returning visitors download them again (377 KiB).

About 492 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.4 s faster on a phone.

7 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.7 s.

8 third-party services load with your homepage (Google Tag Manager, Hotjar and Intercom and others), adding 1.3 MB and 943 ms of main-thread time.

Your mobile performance score is 63 (desktop: 91). Pages that score under 90 lose visitors before the first paint.

Google Tag Manager costs a phone 388 ms of main-thread work and 675 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 2.3 s on main-thread work while loading, 1.4 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

About 40 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 160 ms faster on a phone.

9 long tasks block the main thread while loading, the longest for 194 ms. During a long task the page ignores taps.

Polyfills for old browsers add 21 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).

9 KiB could be saved by minifying CSS.

Desktop scores 91 but mobile only 63. 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.

Your largest element takes 14.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “iOS 26 launch image_01_alpha”.

The page becomes fully interactive after 18.4 s. Good is under 3.8 s.

Visually, the page fills in at 5.5 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 276 ms in total while the page loads. Good is under 200 ms.

The first text or image appears after 2.0 s on a phone. Good is under 1.8 s.

3 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 126 ms to 133 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 2.9 MB in 111 requests on a phone: images 1.4 MB (33), scripts 1.3 MB (36) and fonts 115 KiB (3). Under 2 MB keeps phones on slow connections fast.

6 images further down the page (1,012 KiB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

1 image is downloaded at several times the size a phone draws it, for example iOS 26 launch image_01_alpha.png at 2,160 px wide, shown at 358 px. Resized copies would save about 147 KiB.

By the Sustainable Web Design model, a visit to your homepage emits about 0.83 g of CO₂e: 99.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Certain ARIA roles must contain particular children: 1 element on the page fails this check, rated critical by axe-core.

ARIA commands must have an accessible name: 1 element on the page fails this check, rated serious by axe-core.

1 text element doesn't have enough contrast against the background to read easily, especially outdoors on a phone.

1 link inside paragraphs relies on colour alone to stand out.

All page content should be contained by landmarks: 5 elements on the page fail this check, rated moderate by axe-core.

Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 1 element on the page fails this check, rated moderate by axe-core.

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

Elements with visible text labels do not have matching accessible names. (1 element).

Your title is only 26 characters: “Corellium Virtual Hardware”. Between 30 and 65 characters leaves room to say what you do and for whom.

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

The homepage links to 77 pages on corellium.com and 13 external pages.

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.

/solutions/mobile-app-pentesting and /solutions/mobile-app-devops all use the title “Mobile App Security Testing - Cellebrite”, and 2 other titles repeat too. Search engines can't tell which page to show for a search, so each competes with the others.

/solutions/iot-device-devops and /for/automotive have no meta description, so Google writes the search snippet from whatever text it finds.

/solutions/mobile-app-pentesting and /solutions/mobile-app-devops use the same meta description. A description written for each page earns more clicks.

/trial took over 3 s to send its HTML from our server.

We fetched 15 pages linked from your homepage (of 35 found) and read each the way a search engine does.

2 errors were logged to the browser console while the page loaded, for example “Failed to load resource: the server responded with a status of 403 ()”.

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

3 links go through two or more redirects, for example https://www.corellium.com/trial.

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

corellium.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.

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.

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 1,030 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 FullStory, Google Ads, Google Analytics, Google Tag Manager and Hotjar and 3 mores (measured from a US location before any click). A consent tool (HubSpot cookie banner) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 18 cookies (measured from a US location before any click).

Loading the homepage contacts 36 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.