cartcomps.com website review

Your mobile performance score is 82 (desktop: 100). Pages that score under 90 lose visitors before the first paint.

3 files are served with short cache lifetimes, so returning visitors download them again (217 KiB).

About 71 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 450 ms faster on a phone.

Polyfills for old browsers add 22 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

2 third-party services load with your homepage (Mixpanel and mac.bid), adding 229 KiB and 92 ms of main-thread time.

1 file blocks the first paint until they finish downloading. Deferring or inlining it could save about 100 ms.

4 long tasks block the main thread while loading, the longest for 53 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.

Your largest element takes 4.8 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Seresto Large Dog Flea and Tick Collar”.

The page becomes fully interactive after 4.9 s. Good is under 3.8 s.

Over the last 25 four-week periods to 2026-10-03, real Chrome visitors' tap response (inp) went from 68 ms to 69 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-03, real Chrome visitors' largest content (lcp) went from 1.0 s to 1.1 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

By the Sustainable Web Design model, a visit to your homepage emits about 0.21 g of CO₂e: 24.8 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

17 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.

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

No canonical URL, so duplicate versions of the homepage (with or without www, with tracking parameters) can split ranking signals.

The homepage links to 113 pages on cartcomps.com and 41 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 /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 54 found) and read each the way a search engine does.

On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.

No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

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 514 words of visible text.

Before a visitor clicks anything, the page loads Mixpanel (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.

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