isoalpha.com website review

Your mobile performance score is 85. Pages that score under 90 lose visitors before the first paint.

8 third-party services load with your homepage (Shopify, Facebook and sealsubscriptions.com and others), adding 1.1 MB and 734 ms of main-thread time.

12 files are served with short cache lifetimes, so returning visitors download them again (302 KiB).

About 398 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 220 ms faster on a phone.

12 files block the first paint until they finish downloading. Deferring or inlining them could save about 300 ms.

Shopify costs a phone 231 ms of main-thread work and 462 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 2.8 s on main-thread work while loading, 973 ms of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

The page has 1,954 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

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

30 KiB could be saved by minifying JavaScript.

3 images could be 29 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Polyfills for old browsers add 28 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.

The page becomes fully interactive after 12.9 s. Good is under 3.8 s.

Visually, the page fills in at 7.2 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 2.2 s on a phone. Good is under 1.8 s.

Scripts block taps and scrolling for 209 ms in total while the page loads. Good is under 200 ms.

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' largest content (lcp) went from 1.5 s to 1.8 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

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 2.9 MB in 240 requests on a phone: scripts 1.2 MB (79), images 765 KiB (19) and other files 708 KiB (94). Under 2 MB keeps phones on slow connections fast.

1 image further down the page (27 KiB) download before anyone scrolls to it. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 0.83 g of CO₂e: 99.6 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

Scrollable region must have keyboard access: 3 elements on the page fail this check, rated serious by axe-core.

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

Your meta description is 282 characters; Google truncates after about 160, so the end of your pitch is cut.

Structured data found (BreadcrumbList, OnlineStore, Organization and Product) but with 1 problem, for example “Organization: sameAs is an empty list”.

Your <h1> is empty.

The homepage links to 41 pages on isoalpha.com and 5 external pages.

https://isoalpha.com/collections/all, https://isoalpha.com/blogs/news, https://isoalpha.com/policies/refund-policy, https://isoalpha.com/policies/privacy-policy, https://isoalpha.com/policies/terms-of-service and https://isoalpha.com/policies/contact-information and 1 other have no meta description, so Google writes the search snippet from whatever text it finds.

https://isoalpha.com/collections/all, https://isoalpha.com/pages/medical-studies, https://isoalpha.com/pages/contact and https://isoalpha.com/pages/partnerships have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 12 pages linked from your homepage 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: net::ERR_FAILED”.

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 745 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager 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 14 cookies, 1 of them by other companies (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 31 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.