prove.com website review

4 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.2 s.

A phone's processor spends 4.6 s on main-thread work while loading, 2.4 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

30 files are served with short cache lifetimes, so returning visitors download them again (5.3 MB).

10 images could be 3.3 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

8 third-party services load with your homepage (Google Tag Manager, Osano CMP and Facebook and others), adding 12.9 MB and 1.4 s of main-thread time.

website-files.com costs a phone 118 ms of main-thread work and 11.7 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.

Your mobile performance score is 59. Pages that score under 90 lose visitors before the first paint.

About 473 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 450 ms faster on a phone.

Google Tag Manager costs a phone 546 ms of main-thread work and 704 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.

The page has 2,810 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

14 long tasks block the main thread while loading, the longest for 228 ms. During a long task the page ignores taps.

About 142 KiB of CSS is downloaded but never applied on this page.

Polyfills for old browsers add 13 KiB JavaScript that modern phones do not need.

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

The page becomes fully interactive after 21.2 s. Good is under 3.8 s.

Visually, the page fills in at 10.8 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 3.5 s on a phone. Good is under 1.8 s.

Scripts block taps and scrolling for 617 ms in total while the page loads. Good is under 200 ms.

Real visitors see the first content after 2.9 s (75th percentile). Good is under 1.8 s.

Real visitors wait 995 ms for your server to start answering (75th percentile). Good is under 800 ms.

Your largest element takes 3.5 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Learn what’s next for trust from the leaders defining it. M…”. Most of its time is element render delay (2.3 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 2026-10-31, real Chrome visitors' tap response (inp) went from 166 ms to 169 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 3.1 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 13.4 MB in 204 requests on a phone: images 5.9 MB (59), media 4.9 MB (2) and scripts 1.5 MB (50). Under 2 MB keeps phones on slow connections fast.

6a6760a142aead15d4b23a2f_2-Home page-p-500.png 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).

4 images (369 KiB) 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.

By the Sustainable Web Design model, a visit to your homepage emits about 3.81 g of CO₂e: 457.1 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Elements must only use permitted ARIA attributes: 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.

Heading levels should only increase by one: 1 element on the page fails this check, rated moderate by axe-core.

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

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

There are 2 <h1> headlines (“Trust Infrastructure for an Agentic World” and “IMPROVE San Francisco 2026”). One clear main headline is easier for people and search engines.

The homepage links to 224 pages on prove.com and 16 external pages.

/legal/privacy has no meta description, so Google writes the search snippet from whatever text it finds.

Your homepage links to 1 page by a URL that isn't its canonical one, for example /legal/privacy, whose canonical is /legal/overview. Linking straight to the canonical URL saves crawlers a detour and keeps ranking signals on one address.

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

We fetched 15 pages linked from your homepage (of 152 found) and read each the way a search engine does.

1 image failed to load on a phone, for example https://bat.bing.com/action/0?ti=137035674&tm=gtm002&Ver=2&mid=5ec39f47-9887-408f-8098-6f80080e999a&bo=1&sid=b6c88360d69411f18e77990f2c728c78&vid=b6c8d100d69411f1b8835f2f2a36b337&vids=1&msclkid=N&gtm_.

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

4 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

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

1 link go through two or more redirects, for example http://developer.prove.com/.

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.

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

The homepage carries about 2,398 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 LinkedIn Insight and 5 mores (measured from a US location before any click). A consent tool (Osano) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 21 cookies (measured from a US location before any click).

Loading the homepage contacts 55 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.