supplylife.com website review

14 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.4 s.

Your mobile performance score is 83. Pages that score under 90 lose visitors before the first paint.

10 images could be 174 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 500 ms faster on a phone.

The page has 1,853 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

About 29 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 150 ms faster on a phone.

5 third-party services load with your homepage (openai.com, Shopify and shop.app and others), adding 184 KiB and 78 ms of main-thread time.

6 long tasks block the main thread while loading, the longest for 90 ms. During a long task the page ignores taps.

5 files are served with short cache lifetimes, so returning visitors download them again (36 KiB).

About 12 KiB of CSS is downloaded but never applied on this page.

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 4.4 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Three food intolerance assessment kits displayed against a …”.

The page becomes fully interactive after 4.4 s. Good is under 3.8 s.

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

5 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' tap response (inp) went from 137 ms to 141 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' largest content (lcp) went from 1.7 s to 1.6 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

By the Sustainable Web Design model, a visit to your homepage emits about 0.25 g of CO₂e: 29.6 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

Links must have discernible text: 1 element on the page fails this check, rated serious by axe-core.

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

All page content should be contained by landmarks: 1 element on the page fails this check, rated moderate by axe-core.

Headings skip levels (h1 → h3, h2 → h5 and h2 → h6), which makes the page harder to scan with a screen reader.

The homepage links to 70 pages on supplylife.com and 18 external pages.

https://supplylife.com/discount/BF30 declares the homepage as its canonical URL, which tells Google it is a copy of the homepage and keeps it out of search results. A site-wide template setting usually causes this.

/ and https://supplylife.com/discount/BF30 all use the title “Food Intolerance Test | Rated 4.9* Trustpilot | Supply Life”, and 1 other title repeat too. Search engines can't tell which page to show for a search, so each competes with the others.

https://supplylife.com/blogs/news and https://supplylife.com/pages/intolerance have no meta description, so Google writes the search snippet from whatever text it finds.

https://supplylife.com/pages/faqs and https://supplylife.com/a/faq use the same meta description. A description written for each page earns more clicks.

https://supplylife.com/pages/faqs, https://supplylife.com/pages/science, https://supplylife.com/a/faq and https://supplylife.com/pages/intolerance have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 14 pages linked from your homepage and read each the way a search engine does.

1 error was logged to the browser console while the page loaded, for example “Invalid left-hand side in assignment”.

The homepage carries about 1,212 words of visible text.

Before a visitor clicks anything, the page loads Klaviyo (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, 2 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 7 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.