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centon.com website review

Visit site (opens in a new tab)Reviewed 10 November 202615 issues · 71 checks

This review found 15 issues worth fixing on centon.com, 4 of them high impact, across 71 checks. The most urgent: certain ARIA roles must contain particular children (1 element). Your full playbook turns these into prioritised fixes alongside reviews, competitors and channels.

  1. Homepage
  2. Phone render
  3. Links and pages
  4. Google PageSpeed

Google PageSpeed Insights (opens in a new tab), mobile

Real-visitor load time (LCP)75th percentile, phones
1.9 s953 msMay 23Nov 71.3 s
Show as table
DateReal-visitor load time (LCP)
May 23, 20261.4 s
May 30, 20261.2 s
Jun 6, 20261.1 s
Jun 13, 20261.2 s
Sep 5, 20261.8 s
Sep 12, 20261.8 s
Oct 24, 20261.4 s
Nov 7, 20261.3 s

Chrome UX Report (opens in a new tab): real Chrome visitors over rolling 28-day periods.

One score from every part of this review. How it works

Full-page screenshot of centon.com (phone) rendered by Google PageSpeed Insights

How it loaded on a phone

  1. centon.com at 0.5 s0.5 s
  2. centon.com at 0.9 s0.9 s
  3. centon.com at 1.4 s1.4 s
  4. centon.com at 1.9 s1.9 s
  5. centon.com at 2.3 s2.3 s
  6. centon.com at 2.8 s2.8 s
  7. centon.com at 3.3 s3.3 s
  8. centon.com at 3.8 s3.8 s

Speed

1 to fix91
  • Render-blocking requests

    550 ms

    2 files block the first paint until they finish downloading. Deferring or inlining them could save about 550 ms.

  • Improve image delivery

    112 KiB

    3 images could be 112 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

  • 6 third-party services on the page

    6 third-party services load with your homepage (Shopify, Bugsnag and zi-scripts.com and others), adding 109 KiB and 32 ms of main-thread time.

  • Use efficient cache lifetimes

    36 KiB

    4 files are served with short cache lifetimes, so returning visitors download them again (36 KiB).

  • Chained critical requests

    Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

  • Forced reflow

    Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.

  • Minify CSS

    3 KiB

    3 KiB could be saved by minifying CSS.

3 checks passed
  • Mobile performance score: 91

    91/100

    Your mobile performance score is 91. That is in Google's “good” band (90 and up).

  • Main-thread work: 0.7 s

    A phone's processor spends 0.7 s on main-thread work while loading, 216 ms of it running JavaScript. That is comfortably low.

  • Server response: 7 ms

    7 ms

    Your server sent the HTML in 7 ms, well inside Google's 600 ms guideline.

Core Web Vitals

2 to fix100
  • Speed Index: 5.1 s

    5.1 s

    Visually, the page fills in at 5.1 s (Speed Index). Good is under 3.4 s.

  • First Contentful Paint: 2.4 s

    2.4 s

    The first text or image appears after 2.4 s on a phone. Good is under 1.8 s.

  • Largest content (LCP) held steady for real visitors

    +5%

    Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' largest content (lcp) went from 1.4 s to 1.3 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

9 checks passed
  • Passes Core Web Vitals for real visitors

    Real Chrome users on phones pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)).

  • Real-user LCP: 1.2 s

    1.2 s

    Real visitors wait 1.2 s for the largest content to appear (75th percentile). Good is under 2.5 s.

  • Real-user CLS: 0.00

    0.00

    For real visitors the layout shifts by 0.00 (75th percentile). Good is under 0.1.

  • Real-user FCP: 1.1 s

    1.1 s

    Real visitors see the first content after 1.1 s (75th percentile). Good is under 1.8 s.

  • Real-user TTFB: 661 ms

    661 ms

    Real visitors wait 661 ms for your server to start answering (75th percentile). Good is under 800 ms.

  • Largest Contentful Paint: 2.4 s

    2.4 s

    Your largest element renders in 2.4 s on a phone, inside Google's 2.5 s “good” threshold. The largest element is the element shown below.

  • Time to Interactive: 2.4 s

    2.4 s

    The page is fully interactive after 2.4 s.

  • Cumulative Layout Shift: 0

    0

    The layout barely moves while loading (CLS 0, good is under 0.1).

  • Total Blocking Time: 0 ms

    0 ms

    Scripts block the page for only 0 ms while loading. Good is under 200 ms.

Images and page weight

100
  • About 0.4 g of CO₂ per visit

    0.36 g

    By the Sustainable Web Design model, a visit to your homepage emits about 0.36 g of CO₂e: 43.4 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

4 checks passed
  • Page weight: 1.3 MB in 117 requests

    1.3 MB

    Your homepage downloads 1.3 MB in 117 requests on a phone: other files 663 KiB (69), images 248 KiB (6) and scripts 217 KiB (30). That is a lean page.

  • Images use modern formats

    Every sizeable image is WebP, AVIF or SVG.

  • Images load when needed

    Images below the first screen wait until the visitor scrolls to them.

  • Images are sized for phones

    No image is downloaded at more than three times the size it is drawn on a phone.

Accessibility

4 to fixGoogle 8893
  • Certain ARIA roles must contain particular children (1 element)

    Certain ARIA roles must contain particular children: 1 element on the page fails this check, rated critical by axe-core.

  • 2 text elements with low contrast

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

  • Orphan list items

    Some list items are not inside a list.

  • All page content should be contained by landmarks (1 element)

    All page content should be contained by landmarks: 1 element on the page fails this check, rated moderate by axe-core.

2 checks passed
  • Every image has alt text

    All 20 images in the HTML carry an alt attribute.

  • 47 automated accessibility rules passed

    axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 51 WCAG 2.2 A/AA and best-practice rules on the phone render: 47 passed and 4 failed. 2 mores need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.

SEO

2 to fixGoogle 10092
  • 3 H1 headlines

    There are 3 <h1> headlines (“”, “” and “The part you qualified. Every build.”). One clear main headline is easier for people and search engines.

  • No social preview image

    No Open Graph image, so links shared on LinkedIn, Slack or Facebook show no preview picture.

  • 57 internal links, 0 external

    The homepage links to 57 pages on centon.com and 0 external pages.

6 checks passed
  • Meta description: 160 characters

    Your meta description is 160 characters: “Centon Electronics is a manufacturer and distributor of dram and flash based products including memory modules, solid s…”.

  • Title: 54 characters

    Your title is a healthy 54 characters: “Centon Electronics | Memory & Flash Storage Since 1978”.

  • Canonical URL set

    The canonical URL is https://www.centon.com/.

  • Structured data in place

    Structured data found: Organization and WebSite.

  • robots.txt in place

    robots.txt is in place and points crawlers to your sitemap.

  • XML sitemap found

    Your XML sitemap is reachable at https://www.centon.com/sitemap.xml.

AI search readiness

100
4 checks passed
  • AI answer engines may read the site

    Your robots.txt lets the crawlers behind ChatGPT search, Claude and Perplexity read the site and cite it in answers.

  • Organization data: 4 of 6 facts

    Your Organization JSON-LD gives name, url, logo and contact details; sameAs (social profiles) and description would complete it.

  • Text is in the HTML

    Your server sends the page's text in the HTML (430 words), so crawlers that don't run JavaScript still read it.

  • llms.txt published

    The site publishes https://www.centon.com/llms.txt (6 KiB, 8 links), a plain-text guide to the site for AI tools.

Other pages

3 to fix86
  • 2 pages share a title

    https://www.centon.com/collections/taa and https://www.centon.com/collections/professional-taa all use the title “TAA Compliant USB & microSD, Professional Series | Centon”. Search engines can't tell which page to show for a search, so each competes with the others.

  • 2 pages share a meta description

    https://www.centon.com/collections/taa and https://www.centon.com/collections/professional-taa use the same meta description. A description written for each page earns more clicks.

  • 1 link to non-canonical URLs

    Your homepage links to 1 page by a URL that isn't its canonical one, for example https://www.centon.com/collections/professional-taa, whose canonical is https://www.centon.com/collections/taa. Linking straight to the canonical URL saves crawlers a detour and keeps ranking signals on one address.

  • 15 internal pages checked

    We fetched 15 pages linked from your homepage (of 28 found) and read each the way a search engine does.

5 checks passed
  • Linked pages load

    14 pages of 15 loaded without an error (the rest turned automated requests away).

  • Every page has a meta description

    All 14 pages that loaded have a meta description.

  • Every page has an H1

    Each page we checked has a main headline.

  • No linked page is hidden from search

    None of the pages we checked carries a noindex tag.

  • Every page has a title

    All 14 pages that loaded have a <title>.

Best practices

Google 92100
  • 1 low-resolution image

    1 image is served at too low a resolution for sharp phone screens.

3 checks passed
  • No console errors

    No JavaScript errors were logged while the page loaded on a phone.

  • Tap targets are thumb-sized

    16 of 17 tappable elements near the top are at least 24 px.

  • Mobile viewport set

    The page declares a mobile viewport.

Content and conversion

2 to fix75
  • No social proof

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

  • No analytics detected

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

  • No risk reducer

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

  • About 288 words of copy

    The homepage carries about 288 words of visible text.

4 checks passed
  • Clear next step on the first screen

    On a phone, the first screen shows a clear next step: “GET A SAMPLE”.

  • 17 calls to action

    The homepage has 17 calls to action, for example “Buy & Partner”, “Get a sample” and “Shop Professional”.

  • 2 short forms

    2 short forms (1 field at most) are right on the homepage.

  • Direct contact links

    Visitors can reach you directly: 1 phone link and 1 email link.

Privacy and tracking

1 to fix
  • 3 trackers load before any consent

    3

    Before a visitor clicks anything, the page loads Google Ads, Google Analytics and Google Tag Manager (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.

  • 12 cookies set on arrival

    12

    Opening the homepage sets 12 cookies, 1 of them by other companies (measured from a US location before any click).

  • No consent tool detected

    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.

  • 17 other companies contacted

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

Security, domain, email and software versions

The security, domain and email checks, software and plugin versions, and any app with a known security problem are visible only to people at centon.com, because details like these could help someone attack a site. Every review keeps them private, whatever they found.

Apps on your store

No apps were seen in the code your storefront loads.

Apps found in the homepage's code. Apps that only run in checkout or the admin aren't seen, and a headless storefront shows none. App data from programmable.info

Upkeep, stack and company

Stack

E-commerce
Shopify
Hosting
Shopify

Company

Headquarters
Aliso Viejo

Upkeep, stack, hiring and company data from programmable.info

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What your $25 Growth Playbook adds

This review found 15 issues on centon.com, including 3 speed issues, 2 SEO issues and 2 conversion gaps. That is the website alone. The full Growth Playbook pairs these findings with what your customers say in public reviews and communities and what your closest competitors do better, then turns everything into at least 20 prioritised ideas, each with the evidence behind it, a step-by-step playbook, a metric and an owner.

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  • Customer review mining (G2, Capterra, Trustpilot and more) and voice-of-pain analysis in your buyers’ own words
  • Competitor intelligence with battlecards for your closest rivals
  • Ideal customer profile, buyer segments and buying-stage funnel
  • Ranked channels, outreach sequences and content angles
  • Live Reddit threads where buyers ask for what you sell, with draft replies
  • Earned media and PR openings
  • At least 20 ideas with evidence, a step-by-step playbook, metric, owner, effort and impact, grouped into this week, this quarter, big bets and wildcards, plus a 30/60/90-day roadmap
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