paragonperf.com website review

3 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.1 s.

Your mobile performance score is 86. Pages that score under 90 lose visitors before the first paint.

The page has 2,350 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

A phone's processor spends 2.2 s on main-thread work while loading, 952 ms of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

Shopify costs a phone 70 ms of main-thread work and 319 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.

About 199 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.

8 third-party services load with your homepage (Klaviyo, botnot.io and Shopify and others), adding 733 KiB and 273 ms of main-thread time.

3 long tasks block the main thread while loading, the longest for 230 ms. During a long task the page ignores taps.

4 images could be 75 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 150 ms faster on a phone.

7 files are served with short cache lifetimes, so returning visitors download them again (29 KiB).

About 42 KiB of CSS is downloaded but never applied on this page.

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.

The page becomes fully interactive after 8.6 s. Good is under 3.8 s.

Your largest element takes 3.6 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

Scripts block taps and scrolling for 214 ms in total while the page loads. Good is under 200 ms.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 75 ms to 78 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 2.4 MB in 295 requests on a phone: other files 1.1 MB (184), scripts 667 KiB (80) and images 340 KiB (19). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 0.69 g of CO₂e: 82.4 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

3 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.

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 (h2 → h5), which makes the page harder to scan with a screen reader.

Elements with visible text labels do not have matching accessible names. (1 element).

1 link has no real href, so search engines can't follow it.

The homepage links to 524 pages on paragonperf.com and 6 external pages.

https://paragonperf.com/collections/c8-stingray-officially-licensed-gm-parts and https://paragonperf.com/collections/c8-stingray-brakes all use the title “C8 Corvette Stingray Brake Upgrades | Paragon Performance”. Search engines can't tell which page to show for a search, so each competes with the others.

https://paragonperf.com/collections/c8-stingray-officially-licensed-gm-parts and https://paragonperf.com/collections/c8-stingray-brakes use the same meta description. A description written for each page earns more clicks.

https://paragonperf.com/collections/c8-stingray-accessories, https://paragonperf.com/collections/c8-stingray-brakes, https://paragonperf.com/collections/c8-stingray-detailing, https://paragonperf.com/collections/c8-stingray-engine, https://paragonperf.com/collections/c8-stingray-exhaust and https://paragonperf.com/collections/c8-stingray-forced-induction-kits and 1 other took over 3 s to send their HTML from our server.

We fetched 15 pages linked from your homepage (of 197 found) and read each the way a search engine does.

On a 390 px-wide phone the page scrolls sideways, a sign that something is wider than the screen.

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.

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 1,221 words of visible text.

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