stackathletics.com website review

About 837 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.6 s faster on a phone.

A phone's processor spends 7.9 s on main-thread work while loading, 2.1 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

The page has 3,747 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Your mobile performance score is 53. Pages that score under 90 lose visitors before the first paint.

13 files are served with short cache lifetimes, so returning visitors download them again (207 KiB).

8 third-party services load with your homepage (Amplitude Mobile Analytics, rebuyengine.com and Shopify and others), adding 1.5 MB and 783 ms of main-thread time.

2 files block the first paint until they finish downloading. Deferring or inlining them could save about 800 ms.

4 images could be 713 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

About 113 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 500 ms faster on a phone.

rebuyengine.com costs a phone 218 ms of main-thread work and 520 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.

Shopify costs a phone 166 ms of main-thread work and 394 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.

Polyfills for old browsers add 111 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

10 long tasks block the main thread while loading, the longest for 211 ms. During a long task the page ignores taps.

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.

3 KiB could be saved by minifying CSS.

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 13.4 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “bf-2026-hero-v2-mobile.NEW.png”.

The page becomes fully interactive after 24.3 s. Good is under 3.8 s.

Visually, the page fills in at 7.9 s (Speed Index). Good is under 3.4 s.

For real visitors the layout shifts by 0.20 (75th percentile). Good is under 0.1.

Scripts block taps and scrolling for 513 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.

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

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 171 ms to 163 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 5.9 MB in 499 requests on a phone: images 2.0 MB (39), scripts 1.6 MB (110) and other files 1.6 MB (316). Under 2 MB keeps phones on slow connections fast.

2 images are downloaded at several times the size a phone draws them, for example bf-2026-bestsellers-card.jpg at 1,200 px wide, shown at 345 px. Resized copies would save about 91 KiB.

By the Sustainable Web Design model, a visit to your homepage emits about 1.66 g of CO₂e: 199.1 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

ARIA attributes must conform to valid values: 1 element on the page fails this check, rated critical by axe-core.

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

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

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

Heading levels should only increase by one: 2 elements on the page fail this check, rated moderate by axe-core.

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

Your title is 85 characters, so Google will cut it off around 60: “Elevated Tennis & Racket Sport Apparel for Performance and Lifestyle– Stack Athletics”.

There are 3 <h1> headlines (“”, “Stack* E-Gift Card” and “Stack* E-Gift Card”). One clear main headline is easier for people and search engines.

Your meta description is 214 characters; Google truncates after about 160, so the end of your pitch is cut.

The homepage links to 342 pages on stackathletics.com and 1 external page.

https://stackathletics.com/collections/womens-bestsellers, https://stackathletics.com/collections/womens-summer-collection, https://stackathletics.com/collections/womens-last-chance, https://stackathletics.com/collections/womens-tanks, https://stackathletics.com/collections/womens-long-sleeves and https://stackathletics.com/collections/womens-sports-bras and 3 others use the same meta description. A description written for each page earns more clicks.

We fetched 15 pages linked from your homepage (of 57 found) and read each the way a search engine does.

6 errors were logged to the browser console while the page loaded, for example “Uncaught ReferenceError: widget is not defined”.

Your longest form asks for 9 fields (0 required). Every extra field lowers completion.

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 1,241 words of visible text.

The page uses urgency cues (a countdown or limited-time wording).

Before a visitor clicks anything, the page loads Amplitude, Google Ads, Google Analytics, Google Tag Manager and Klaviyo 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 38 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 43 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.