killerspin.com website review

About 1.1 MB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 3.7 s faster on a phone.

35 files are served with short cache lifetimes, so returning visitors download them again (915 KiB).

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

A phone's processor spends 12.4 s on main-thread work while loading, 3.9 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

About 176 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 1.1 s faster on a phone.

Your mobile performance score is 30. Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

8 third-party services load with your homepage (Hotjar, Google Tag Manager and Other Google APIs/SDKs and others), adding 14.6 MB and 1.9 s of main-thread time.

Shopify costs a phone 107 ms of main-thread work and 12.7 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.

20 long tasks block the main thread while loading, the longest for 892 ms. During a long task the page ignores taps.

Google Tag Manager costs a phone 400 ms of main-thread work and 626 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.

Hotjar costs a phone 446 ms of main-thread work and 65 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.

Other Google APIs/SDKs costs a phone 327 ms of main-thread work and 743 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 74 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 300 ms faster on a phone.

The page has 1,873 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 50 ms).

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.

4 KiB could be saved by minifying CSS.

Your largest element takes 31.6 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “WHY KILLERSPIN EXISTS”.

Visually, the page fills in at 18.5 s (Speed Index). Good is under 3.4 s.

The page becomes fully interactive after 41.2 s. Good is under 3.8 s.

Scripts block taps and scrolling for 1.6 s in total while the page loads. Good is under 200 ms.

The first text or image appears after 4.7 s on a phone. Good is under 1.8 s.

2 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 99 ms to 112 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 1.4 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 17.7 MB in 562 requests on a phone: media 9.3 MB (2), images 3.2 MB (45) and scripts 2.7 MB (144). Under 2 MB keeps phones on slow connections fast.

2 images (517 KiB) are JPEG, PNG or GIF. The same pictures as WebP or AVIF are usually much smaller at the same quality, and every current browser shows them.

1 image further down the page (53 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 5.03 g of CO₂e: 603.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

20 elements hidden from screen readers can still receive keyboard focus.

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

Elements must only use permitted ARIA attributes: 1 element on the page fails this check, rated serious by axe-core.

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

The viewport tag blocks pinch-zoom, which low-vision visitors rely on.

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

Elements with visible text labels do not have matching accessible names. (2 elements).

Your meta description is 198 characters; Google truncates after about 160, so the end of your pitch is cut.

The homepage links to 90 pages on killerspin.com and 6 external pages.

/collections/table-selector and /collections/paddle-selector have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 48 found) and read each the way a search engine does.

2 images failed to load on a phone, for example https://bat.bing.com/action/0?ti=5039646&Ver=2&mid=143c7b51-f936-42fb-8d0d-efa55f50543c&bo=1&sid=34110d30d86e11f1af14b79eeec3170f&vid=341119b0d86e11f1bc1259a668c63407&vids=1&msclkid=N&pi=918639831&lg=.

5 of 19 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

The page uses 1 deprecated browser API that will stop working in future browsers (“Unload event listeners are deprecated and will be removed.”).

1 third-party cookie is set on load; browsers are restricting these, so whatever relies on them breaks.

6 errors were logged to the browser console while the page loaded, for example “Target element not found with class: .drawer__footer”.

23 images are displayed at the wrong aspect ratio, so they look stretched or squashed.

Chrome logged issues while loading the page (“Cookie”).

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

1 link go through two or more redirects, for example https://www.killerspin.com/account/login.

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.

killerspin.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.

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.

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.

The homepage carries about 765 words of visible text.

DMARC is set to p=none, so mail pretending to be killerspin.com is still delivered. Add a report address, check the reports, then move to quarantine.

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, Hotjar and Klaviyo and 2 mores (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 54 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.