monstertransmission.com website review

About 439 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.9 s faster on a phone.

14 files are served with short cache lifetimes, so returning visitors download them again (305 KiB).

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

Your mobile performance score is 32. Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.

A phone's processor spends 5.0 s on main-thread work while loading, 2.4 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

8 third-party services load with your homepage (posthog.com, Google Tag Manager and Clarity and others), adding 1.2 MB and 1.0 s of main-thread time.

13 images could be 473 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 450 ms faster on a phone.

About 95 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 310 ms faster on a phone.

Google Tag Manager costs a phone 190 ms of main-thread work and 328 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.

The page has 2,212 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Polyfills for old browsers add 52 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

15 KiB JavaScript is shipped twice across bundles. Google estimates it would make the page about 150 ms faster on a phone.

12 long tasks block the main thread while loading, the longest for 134 ms. During a long task the page ignores taps.

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

11 KiB could be saved by minifying JavaScript.

7 KiB could be saved by minifying CSS.

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.

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.

For real visitors the layout shifts by 0.33 (75th percentile). Good is under 0.1.

Your largest element takes 20.9 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

The first text or image appears after 7.3 s on a phone. Good is under 1.8 s.

The page becomes fully interactive after 21.1 s. Good is under 3.8 s.

Visually, the page fills in at 9.2 s (Speed Index). Good is under 3.4 s.

The layout shifts by 0.292 while loading, so content jumps under the reader's thumb. Good is under 0.1.

Real visitors wait 214 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 183 ms to 221 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Real visitors wait 1.3 s for your server to start answering (75th percentile). Good is under 800 ms.

Scripts block taps and scrolling for 387 ms in total while the page loads. Good is under 200 ms.

8 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' largest content (lcp) went from 1.6 s to 1.5 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 5.8 MB in 350 requests on a phone: images 1.9 MB (36), scripts 1.3 MB (90) and other files 1.2 MB (191). Under 2 MB keeps phones on slow connections fast.

1 image further down the page (22 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 1.65 g of CO₂e: 197.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Elements must only use permitted ARIA attributes: 2 elements on the page fail this check, rated serious by axe-core.

1 text element doesn't have enough contrast against the background to read easily, especially outdoors on a phone.

1 link inside paragraphs relies on colour alone to stand out.

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

All page content should be contained by landmarks: 69 elements on the page fail this check, rated moderate by axe-core.

The page has no <main> landmark, so screen-reader users cannot jump straight to the content.

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

1 form field has no label, so screen readers announce an empty box and autofill guesses.

1 visible link has no text or label, so screen readers cannot say where it goes.

1 tap target is too small or too close together to hit reliably with a finger.

ARIA role should be appropriate for the element: 2 elements on the page fail this check, rated minor by axe-core.

Elements marked as presentational should be consistently ignored: 2 elements on the page fail this check, rated minor by axe-core.

There is no <h1>, so neither visitors nor Google get a clear main headline.

No structured data (JSON-LD), so Google can't show rich results such as your logo, ratings or FAQs.

Your meta description is 320 characters; Google truncates after about 160, so the end of your pitch is cut.

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

The homepage links to 330 pages on monstertransmission.com and 6 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.

https://monstertransmission.com/pages/free-warranty, https://monstertransmission.com/pages/store-locator and https://monstertransmission.com/pages/monster-order-tracker have no meta description, so Google writes the search snippet from whatever text it finds.

https://monstertransmission.com/collections/transmissions, https://monstertransmission.com/collections/transmissions-chevy, https://monstertransmission.com/collections/transmissions-chevy-4l60e and https://monstertransmission.com/collections/transmissions-chevy-4l70e have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 155 found) and read each the way a search engine does.

1 image failed to load on a phone, for example https://bat.bing.com/action/0?ti=187225047&Ver=2&mid=dc080e19-84f5-462d-9a2b-96127e956374&bo=1&sid=55e6aa50d95111f193a24b6882aff16e&vid=55e6fc70d95111f1a88fd7db6f6fedf3&vids=1&msclkid=N&pi=918639831&l.

9 of 23 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

4 errors were logged to the browser console while the page loaded, for example “Cannot read properties of null (reading 'length')”.

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

The homepage carries about 1,016 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Klaviyo and LinkedIn Insight and 3 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 21 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 45 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.