diamondback.com website review

10 images could be 2.5 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 3.3 s faster on a phone.

13 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.6 s.

Your mobile performance score is 64. Pages that score under 90 lose visitors before the first paint.

About 76 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 610 ms faster on a phone.

A phone's processor spends 2.4 s on main-thread work while loading, 705 ms of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

Klaviyo costs a phone 166 ms of main-thread work and 340 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.

8 third-party services load with your homepage (Klaviyo, Shopify and nfcube.com and others), adding 506 KiB and 231 ms of main-thread time.

About 26 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 150 ms faster on a phone.

9 files are served with short cache lifetimes, so returning visitors download them again (32 KiB).

3 long tasks block the main thread while loading, the longest for 128 ms. During a long task the page ignores taps.

Polyfills for old browsers add 19 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.

4 KiB could be saved by minifying JavaScript.

3 KiB could be saved by minifying CSS.

Your largest element takes 23.8 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

The page becomes fully interactive after 24.5 s. Good is under 3.8 s.

Visually, the page fills in at 9.0 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 2.4 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 78 ms to 80 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 1.1 s to 1.2 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 5.9 MB in 212 requests on a phone: images 4.2 MB (19), other files 744 KiB (92) and scripts 663 KiB (75). Under 2 MB keeps phones on slow connections fast.

2 images weigh 1.3 MB together. On a phone connection a single image that size takes seconds.

8 images are downloaded at several times the size a phone draws them, for example DSC02183-71-homebanner_c6141767-396c-434c-8de6-75ed926c79a1_ at 2,800 px wide, shown at 390 px. Resized copies would save about 1.3 MB.

3 images further down the page (884 KiB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

1 image (249 KiB) is 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.

By the Sustainable Web Design model, a visit to your homepage emits about 1.67 g of CO₂e: 200.7 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

3 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.

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

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

All page content should be contained by landmarks: 12 elements on the page fail this check, rated moderate by axe-core.

Page should contain a level-one heading: 1 element on the page fails this check, rated moderate by axe-core.

Your title is only 17 characters: “Diamondback Bikes”. Between 30 and 65 characters leaves room to say what you do and for whom.

Structured data found (BreadcrumbList and WebSite) but with 1 problem, for example “ld+json block 1 is not valid JSON (Unexpected end of JSON input)”.

The homepage links to 69 pages on diamondback.com and 8 external pages.

There is no Organization (or LocalBusiness) JSON-LD, so search engines and AI assistants have no machine-readable facts about who runs the site: its name, logo, profiles and contact details.

There is no https://www.diamondback.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 30 found) and read each the way a search engine does.

6 of 25 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

3 errors were logged to the browser console while the page loaded, for example “Failed to load resource: the server responded with a status of 404 ()”.

Social proof on the homepage: 1 trust badge. Pairing it with named testimonials or customer logos makes it far more convincing.

No analytics or tag manager detected in the HTML, so you can't measure whether any of these fixes work.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

The homepage has only about 131 words of visible text; thin pages give Google and first-time buyers little to go on.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

Before a visitor clicks anything, the page loads Klaviyo (measured from a US location before any click). A consent tool (OneTrust) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 3 cookies (measured from a US location before any click).

Loading the homepage contacts 17 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.