33shake.com website review

About 1.6 MB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 3.0 s faster on a phone.

9 images could be 673 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 650 ms faster on a phone.

8 third-party services load with your homepage (YouTube, Shopify and cloudfront.net and others), adding 2.9 MB and 950 ms of main-thread time.

Your mobile performance score is 64. Pages that score under 90 lose visitors before the first paint.

About 179 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 300 ms faster on a phone.

YouTube costs a phone 333 ms of main-thread work and 1,024 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 3.1 s on main-thread work while loading, 1.4 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

Shopify costs a phone 207 ms of main-thread work and 821 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 2,504 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

cloudfront.net costs a phone 159 ms of main-thread work and 553 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.

16 files are served with short cache lifetimes, so returning visitors download them again (78 KiB).

4 files block the first paint until they finish downloading. Deferring or inlining them could save about 200 ms.

7 long tasks block the main thread while loading, the longest for 108 ms. During a long task the page ignores taps.

Polyfills for old browsers add 36 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.

Your largest element takes 15.5 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “We use cookies to improve your browsing experience, deliver…”.

The page becomes fully interactive after 23.8 s. Good is under 3.8 s.

Visually, the page fills in at 7.4 s (Speed Index). Good is under 3.4 s.

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' tap response (inp) went from 145 ms to 179 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

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

The first text or image appears after 1.9 s on a phone. Good is under 1.8 s.

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

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' largest content (lcp) went from 2.5 s to 2.3 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 5.2 MB in 259 requests on a phone: scripts 2.4 MB (94), images 1.6 MB (37) and other files 911 KiB (106). Under 2 MB keeps phones on slow connections fast.

1 image is downloaded at several times the size a phone draws it, for example NoUPF_Homepage.jpg at 2,017 px wide, shown at 390 px. Resized copies would save about 209 KiB.

By the Sustainable Web Design model, a visit to your homepage emits about 1.49 g of CO₂e: 178.2 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

10 elements hidden from screen readers can still receive keyboard focus.

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

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

Scrollable region must have keyboard access: 1 element on the page fails this check, rated serious by axe-core.

12 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.

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.

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

Alternative text of images should not be repeated as text: 3 elements on the page fail this check, rated minor by axe-core.

Headings skip levels (h1 → h3), which makes the page harder to scan with a screen reader.

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

The homepage links to 100 pages on 33shake.com and 16 external pages.

/pages/protein-calculator has no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 48 found) and read each the way a search engine does.

12 of 39 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

5 third-party cookies are set on load; browsers are restricting these, so whatever relies on them breaks.

3 errors were logged to the browser console while the page loaded, for example “Access to XMLHttpRequest at 'https://d1npnstlfekkfz.cloudfront.net/zipify-oneclickupsell-single.bfbdb0cfc9f155eb.css' f…”.

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

HSTS is set, but max-age is 91 days; one year is the recommended minimum.

2 links go through two or more redirects, for example https://www.33fuel.com/customer_authentication/redirect?locale=en&region_country=US.

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.

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.

33fuel.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.

Your homepage shows a street address but no LocalBusiness JSON-LD, so Google and AI assistants have to guess your address, hours and phone from the page text.

A local customer looking to call finds no phone number on the homepage. Add one, ideally as a tap-to-call link.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

The homepage shows no opening hours. If customers visit or call, show when.

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

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 309 words of visible text.

DMARC is set to p=none, so mail pretending to be 33shake.com is still delivered. Add a report address, check the reports, then move to quarantine.

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, Klaviyo and Meta Pixel (measured from a US location before any click). A consent tool (Cookiebot) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 19 cookies, 1 of them by other companies (measured from a US location before any click).

Loading the homepage contacts 38 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.