performancelab.com website review

The page goes through 1 redirect before it starts loading, costing about 7.2 s. Link and advertise the final URL directly.

About 755 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 2.6 s faster on a phone.

A phone's processor spends 6.6 s on main-thread work while loading, 1.8 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

8 third-party services load with your homepage (Google Tag Manager, Klaviyo and Shopify and others), adding 1.1 MB and 1.1 s of main-thread time.

Your mobile performance score is 54. Pages that score under 90 lose visitors before the first paint.

Google Tag Manager costs a phone 668 ms of main-thread work and 396 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.

10 long tasks block the main thread while loading, the longest for 272 ms. During a long task the page ignores taps.

The page has 2,038 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

13 files are served with short cache lifetimes, so returning visitors download them again (94 KiB).

12 images could be 236 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Polyfills for old browsers add 68 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.

Your largest element takes 11.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Black Friday Hero mobile image for Mind Lab Pro®”.

The page becomes fully interactive after 18.1 s. Good is under 3.8 s.

Scripts block taps and scrolling for 587 ms in total while the page loads. Good is under 200 ms.

Visually, the page fills in at 5.4 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 2.0 s on a phone. Good is under 1.8 s.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 110 ms to 108 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 1.5 s to 1.5 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 4.8 MB in 467 requests on a phone: scripts 1.8 MB (120), other files 1.7 MB (295) and images 1.1 MB (38). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 1.37 g of CO₂e: 164.4 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

34 buttons have no accessible name, so screen readers announce just “button”.

29 tap targets are too small or too close together to hit reliably with a finger.

4 images have no alt text, which hurts accessibility and image search.

All page content should be contained by landmarks: 3 elements on the page fail this check, rated moderate by axe-core.

Banner landmark should not be contained in another landmark: 1 element on the page fails this check, rated moderate by axe-core.

Document should not have more than one banner landmark: 1 element on the page fails 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.

Elements with visible text labels do not have matching accessible names. (5 elements).

13 links use generic text like “click here” or “learn more”, which tells Google nothing about the page behind them.

The homepage links to 90 pages on performancelab.com and 20 external pages.

There is no https://www.performancelab.com/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.

We fetched 15 pages linked from your homepage (of 34 found) and read each the way a search engine does.

22 of 61 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

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 1,871 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Klaviyo and Meta Pixel 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 24 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 38 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.