enzymescience.com website review

The page has 6,414 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

A phone's processor spends 4.7 s on main-thread work while loading, 2.7 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

8 third-party services load with your homepage (Google Tag Manager, Shopify and monkcommerce.app and others), adding 2.9 MB and 1.3 s of main-thread time.

Your mobile performance score is 62. Pages that score under 90 lose visitors before the first paint.

About 939 KiB of JavaScript is downloaded but never used on this page.

27 files are served with short cache lifetimes, so returning visitors download them again (450 KiB).

12 files block the first paint until they finish downloading. Deferring or inlining them could save about 400 ms.

Shopify costs a phone 292 ms of main-thread work and 1.0 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.

Google Tag Manager costs a phone 315 ms of main-thread work and 349 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.

monkcommerce.app costs a phone 151 ms of main-thread work and 604 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.

Klaviyo costs a phone 110 ms of main-thread work and 305 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.

9 long tasks block the main thread while loading, the longest for 248 ms. During a long task the page ignores taps.

About 16 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 150 ms faster on a phone.

4 images could be 99 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Polyfills for old browsers add 31 KiB JavaScript that modern phones do not need.

6 KiB could be saved by minifying JavaScript.

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

The page becomes fully interactive after 26.3 s. Good is under 3.8 s.

Your largest element takes 5.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “PRACTITIONER DIVISION OF ENZYMEDICA Advanced Digestive Heal…”.

Visually, the page fills in at 7.5 s (Speed Index). Good is under 3.4 s.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 98 ms to 132 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Scripts block taps and scrolling for 378 ms in total while the page loads. Good is under 200 ms.

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

Your homepage downloads 4.7 MB in 419 requests on a phone: scripts 2.4 MB (144), other files 1.0 MB (196) and fonts 526 KiB (11). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 1.32 g of CO₂e: 158.6 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

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

1 image has no alt text, which hurts accessibility and image search.

All page content should be contained by landmarks: 8 elements on the page fail this check, rated moderate by axe-core.

2 form fields have no label, so screen readers announce an empty box and autofill guesses.

Headings skip levels (h1 → h4, h1 → h4 and h1 → h3), which makes the page harder to scan with a screen reader.

There are 3 <h1> headlines (“”, “Advanced Digestive Health Solutions for Your Prac…” and “Advanced Digestive Health Solutions for Your Prac…”). One clear main headline is easier for people and search engines.

Structured data found (Organization and WebSite) but with 1 problem, for example “Organization: url points at a different host (https://enzyscience.com)”.

No Open Graph image, so links shared on LinkedIn, Slack or Facebook show no preview picture.

The homepage links to 49 pages on enzymescience.com and 2 external pages.

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.

/collections/all, /policies/shipping-policy and /pages/patient-client have no meta description, so Google writes the search snippet from whatever text it finds.

/collections/all, /policies/shipping-policy and /pages/patient-client have no <h1> headline, so visitors and search engines get no clear main topic.

/collections/all, /policies/shipping-policy and /pages/patient-client have under 150 words in the HTML. Thin pages rarely rank; if the text loads with JavaScript, crawlers that don't run it see even less.

We fetched 15 pages linked from your homepage (of 25 found) and read each the way a search engine does.

2 images failed to load on a phone, for example https://i.liadm.com/s/85221?&aid=7156045d-73ca-4635-a9e1-d83f52501561&ref=A7062358&_=0.9277959541279729.

The page uses 2 deprecated browser APIs that will stop working in future browsers (“Authorization will not be covered by the wildcard symbol (*) in CORS `Access-Control-Allow-Headers`…”).

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

1 link from your homepage to your own site is broken, for example https://enzymescience.com/collections/new-products (404).

1 link to other sites is dead, for example https://quiz.enzyscience.com/personalized-quiz-starts-here (404).

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

3 links go through two or more redirects, for example https://enzymescience.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.

enzymescience.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.

enzymescience.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 testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

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.

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 512 words of visible text.

DMARC is set to p=none, so mail pretending to be enzymescience.com is still delivered. Reports are on, so moving to quarantine is the next step.

We found no DKIM key on the selectors the big email providers use. If you send through one of them, turning on DKIM signing improves delivery.

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 Microsoft Ads and 1 more (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 22 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 47 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.