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sparklean.com website review

Visit site (opens in a new tab)Reviewed 24 October 202629 issues · 89 checks

This review found 29 issues worth fixing on sparklean.com, 10 of them high impact, across 89 checks. The most urgent: main-thread work: 7.3 s. 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 s1.4 sJun 20Oct 171.6 s
Show as table
DateReal-visitor load time (LCP)
Jun 20, 20261.8 s
Jun 27, 20261.7 s
Jul 4, 20261.7 s
Jul 11, 20261.8 s
Jul 18, 20261.7 s
Aug 1, 20261.8 s
Aug 22, 20261.5 s
Aug 29, 20261.5 s
Sep 5, 20261.6 s
Sep 12, 20261.8 s
Sep 19, 20261.8 s
Oct 10, 20261.6 s
Oct 17, 20261.6 s
Real-visitor tap response (INP)75th percentile, phones
181 ms140 msJul 4Sep 19162 ms
Show as table
DateReal-visitor tap response (INP)
Jul 4, 2026145 ms
Aug 29, 2026153 ms
Sep 5, 2026162 ms
Sep 12, 2026176 ms
Sep 19, 2026162 ms

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 sparklean.com (desktop) rendered by Google PageSpeed Insights

How it loaded on a phone

  1. sparklean.com at 0.9 s0.9 s
  2. sparklean.com at 1.8 s1.8 s
  3. sparklean.com at 2.7 s2.7 s
  4. sparklean.com at 3.6 s3.6 s
  5. sparklean.com at 4.5 s4.5 s
  6. sparklean.com at 5.4 s5.4 s
  7. sparklean.com at 6.3 s6.3 s
  8. sparklean.com at 7.2 s7.2 s

Speed

9 to fix73
  • Main-thread work: 7.3 s

    A phone's processor spends 7.3 s on main-thread work while loading, 2.6 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

  • 4,753 HTML elements

    The page has 4,753 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

  • 8 third-party services on the page

    8 third-party services load with your homepage (Klaviyo, loox.io and Clarity and others), adding 1.5 MB and 887 ms of main-thread time.

  • Mobile performance score: 73

    73/100

    Your mobile performance score is 73 (desktop: 95). Pages that score under 90 lose visitors before the first paint.

  • Render-blocking requests

    750 ms

    11 files block the first paint until they finish downloading. Deferring or inlining them could save about 750 ms.

  • Improve image delivery

    571 KiB

    19 images could be 571 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

  • Klaviyo adds 348 ms

    348 ms

    Klaviyo costs a phone 348 ms of main-thread work and 622 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.

  • loox.io adds 328 ms

    328 ms

    loox.io costs a phone 328 ms of main-thread work and 86 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.

  • Shopify adds 61 ms

    61 ms

    Shopify costs a phone 61 ms of main-thread work and 734 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.

  • Reduce unused JavaScript

    150 ms · 159 KiB

    About 159 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.

  • 11 long tasks on the main thread

    11 long tasks block the main thread while loading, the longest for 166 ms. During a long task the page ignores taps.

  • Legacy JavaScript

    60 KiB

    Polyfills for old browsers add 60 KiB JavaScript that modern phones do not need.

  • Font display

    50 ms

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

  • Use efficient cache lifetimes

    47 KiB

    12 files are served with short cache lifetimes, so returning visitors download them again (47 KiB).

  • Reduce unused CSS

    36 KiB

    About 36 KiB of CSS is downloaded but never applied on this page.

  • Minify CSS

    6 KiB

    6 KiB could be saved by minifying CSS.

  • 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.

1 checks passed
  • Server response: 11 ms

    11 ms

    Your server sent the HTML in 11 ms, well inside Google's 600 ms guideline.

Core Web Vitals

5 to fix100
  • Time to Interactive: 22.4 s

    22.4 s

    The page becomes fully interactive after 22.4 s. Good is under 3.8 s.

  • Largest Contentful Paint: 5.0 s

    5.0 s

    Your largest element takes 5.0 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Sparklean complete jewelry care system product lineup on ma…”.

  • 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.

  • Speed Index: 4.4 s

    4.4 s

    Visually, the page fills in at 4.4 s (Speed Index). Good is under 3.4 s.

  • 15 images without width and height

    15 images have no width and height attributes, so the layout jumps as each one loads.

  • Tap response (INP) got 13% slower for real visitors

    +13%

    Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' tap response (inp) went from 145 ms to 162 ms 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: 1.6 s

    1.6 s

    Real visitors wait 1.6 s for the largest content to appear (75th percentile). Good is under 2.5 s.

  • Real-user INP: 155 ms

    155 ms

    Real visitors wait 155 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

  • Real-user CLS: 0.01

    0.01

    For real visitors the layout shifts by 0.01 (75th percentile). Good is under 0.1.

  • Real-user FCP: 1.2 s

    1.2 s

    Real visitors see the first content after 1.2 s (75th percentile). Good is under 1.8 s.

  • Real-user TTFB: 731 ms

    731 ms

    Real visitors wait 731 ms for your server to start answering (75th percentile). Good is under 800 ms.

  • Largest content (LCP) got 10% faster for real visitors

    -10%

    Over the last 25 four-week periods to 2026-10-17, real Chrome visitors' largest content (lcp) went from 1.8 s to 1.6 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

  • Total Blocking Time: 200 ms

    200 ms

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

  • Cumulative Layout Shift: 0.006

    0.006

    The layout barely moves while loading (CLS 0.006, good is under 0.1).

Images and page weight

2 to fix60
  • Page weight: 4.3 MB in 415 requests

    4.3 MB

    Your homepage downloads 4.3 MB in 415 requests on a phone: images 1.5 MB (43), scripts 1.4 MB (223) and other files 726 KiB (90). Under 2 MB keeps phones on slow connections fast.

  • 1 image far larger than shown

    4 KiB

    1 image is downloaded at several times the size a phone draws it, for example e2ee7904fe164b9e85cf2d325b4949c6.thumbnail.0000000000.jpg at 533 px wide, shown at 172 px. Resized copies would save about 4 KiB.

  • 3 images in older formats

    3 images (308 KiB) are 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.

  • About 1.2 g of CO₂ per visit

    1.22 g

    By the Sustainable Web Design model, a visit to your homepage emits about 1.22 g of CO₂e: 146.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

1 checks passed
  • Images load when needed

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

Accessibility

8 to fixGoogle 8489
  • 2 buttons without a name

    2 buttons have no accessible name, so screen readers announce just “button”.

  • 7 tap targets too small

    7 tap targets are too small or too close together to hit reliably with a finger.

  • 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.

  • Scrollable region must have keyboard access (1 element)

    Scrollable region must have keyboard access: 1 element on the page fails this check, rated serious by axe-core.

  • 6 images without alt text

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

  • All page content should be contained by landmarks (2 elements)

    All page content should be contained by landmarks: 2 elements on the page fail this check, rated moderate by axe-core.

  • ARIA role should be appropriate for the element (2 elements)

    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)

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

  • Elements with visible text labels do not have matching accessible names.

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

1 checks passed
  • 53 automated accessibility rules passed

    axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 61 WCAG 2.2 A/AA and best-practice rules on the phone render: 53 passed and 8 failed. 3 mores need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.

SEO

Google 92100
  • 59 internal links, 9 external

    The homepage links to 59 pages on sparklean.com and 9 external pages.

8 checks passed
  • Meta description: 144 characters

    Your meta description is 144 characters: “Shop Sparklean jewelry, watch and eyeglass cleaning products. Find the right cleaner, brush or polishing cloth. Free US…”.

  • One H1 headline

    Your main headline reads: “CLEAN EVERYTHING YOU'D HATE TO RUIN”.

  • Title: 58 characters

    Your title is a healthy 58 characters: “Sparklean® | Safe Cleaner for Rolex, Diamonds & Eyeglasses”.

  • Canonical URL set

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

  • Structured data in place

    Structured data found: Organization and WebSite.

  • Open Graph tags complete

    Open Graph tags are complete, so shared links show a title, description and image.

  • 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.sparklean.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: 6 of 6 facts

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

  • Text is in the HTML

    Your server sends the page's text in the HTML (2,147 words), so crawlers that don't run JavaScript still read it.

  • llms.txt published

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

Other pages

2 to fix90
  • 1 page without a meta description

    https://www.sparklean.com/collections/all has no meta description, so Google writes the search snippet from whatever text it finds.

  • 2 pages without an H1

    https://www.sparklean.com/products/sparklean-polishing-cloth and https://www.sparklean.com/products/sparklean-cleaning-kit-bundle have no <h1> headline, so visitors and search engines get no clear main topic.

  • 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

    All 15 pages we checked loaded without an error.

  • Canonical URLs point to themselves

    No page we checked hands its ranking to a different URL.

  • Titles are unique

    Every page we checked has its own title.

  • No linked page is hidden from search

    None of the pages we checked carries a noindex tag.

  • Every page has a title

    All 15 pages that loaded have a <title>.

Best practices

1 to fixGoogle 9693
  • 15 small tap targets

    15 of 61 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

2 checks passed
  • No console errors

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

  • Mobile viewport set

    The page declares a mobile viewport.

Content and conversion

1 to fix94
  • Local business without LocalBusiness data

    Your homepage shows a street address but no LocalBusiness JSON-LD, so Google and AI assistants have to guess your address, hours and phone from the page text.

  • No opening hours

    The homepage shows no opening hours. If customers visit or call, show when.

  • Phone number is not tap-to-call

    Your phone number appears as text but isn't a tel: link, so phone visitors can't tap to call.

  • No map or directions link

    There is no link to Google or Apple Maps. A directions link is one tap for a phone visitor.

  • About 835 words of copy

    The homepage carries about 835 words of visible text.

7 checks passed
  • Clear next step on the first screen

    On a phone, the first screen shows a clear next step: “Shop Now”.

  • 12 calls to action

    The homepage has 12 calls to action, for example “shop all”, “Shop by Use” and “Contact Us”.

  • 10 short forms

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

  • Social proof on the page

    Social proof on the homepage: 6 testimonial or review blocks and a star rating.

  • Analytics in place

    Analytics detected: Microsoft Clarity.

  • Phone number on the homepage

    Your phone number is on the homepage.

  • Risk reducer mentioned

    A guarantee or risk reducer (money-back, free trial, no credit card or similar) is mentioned on the page.

Privacy and tracking

1 to fix
  • 8 trackers load before any consent

    8

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

  • 21 cookies set on arrival

    21

    Opening the homepage sets 21 cookies (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.

  • 37 other companies contacted

    Loading the homepage contacts 37 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 sparklean.com, because details like these could help someone attack a site. Every review keeps them private, whatever they found.

Upkeep, stack and company

Stack

Framework
jQuery
E-commerce
Shopify
Analytics
Microsoft Clarity

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

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