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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.
- Homepage
- Phone render
- Links and pages
- Google PageSpeed
Google PageSpeed Insights (opens in a new tab), mobile
Site score
91A- #1,266 of 96,092 reviewed websitesbeats 98%
- #548 of 51,980 online storesbeats 98%
- #522 of 47,076 Shopify storesbeats 98%
Closest competitors among Shopify stores
Compare side by sideShow as table
| Date | Real-visitor load time (LCP) |
|---|---|
| Jun 20, 2026 | 1.8 s |
| Jun 27, 2026 | 1.7 s |
| Jul 4, 2026 | 1.7 s |
| Jul 11, 2026 | 1.8 s |
| Jul 18, 2026 | 1.7 s |
| Aug 1, 2026 | 1.8 s |
| Aug 22, 2026 | 1.5 s |
| Aug 29, 2026 | 1.5 s |
| Sep 5, 2026 | 1.6 s |
| Sep 12, 2026 | 1.8 s |
| Sep 19, 2026 | 1.8 s |
| Oct 10, 2026 | 1.6 s |
| Oct 17, 2026 | 1.6 s |
Show as table
| Date | Real-visitor tap response (INP) |
|---|---|
| Jul 4, 2026 | 145 ms |
| Aug 29, 2026 | 153 ms |
| Sep 5, 2026 | 162 ms |
| Sep 12, 2026 | 176 ms |
| Sep 19, 2026 | 162 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
How it loaded on a phone
0.9 s
1.8 s
2.7 s
3.6 s
4.5 s
5.4 s
6.3 s
7.2 s
Speed
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
73/100Your mobile performance score is 73 (desktop: 95). Pages that score under 90 lose visitors before the first paint.
Render-blocking requests
750 ms11 files block the first paint until they finish downloading. Deferring or inlining them could save about 750 ms.
Improve image delivery
571 KiB19 images could be 571 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.
Klaviyo adds 348 ms
348 msKlaviyo 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 msloox.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 msShopify 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 KiBAbout 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 KiBPolyfills for old browsers add 60 KiB JavaScript that modern phones do not need.
Font display
50 msWeb fonts hide text while they load. Setting font-display: swap shows text immediately (about 50 ms).
Use efficient cache lifetimes
47 KiB12 files are served with short cache lifetimes, so returning visitors download them again (47 KiB).
Reduce unused CSS
36 KiBAbout 36 KiB of CSS is downloaded but never applied on this page.
Minify CSS
6 KiB6 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 msYour server sent the HTML in 11 ms, well inside Google's 600 ms guideline.
Core Web Vitals
Time to Interactive: 22.4 s
22.4 sThe page becomes fully interactive after 22.4 s. Good is under 3.8 s.
Largest Contentful Paint: 5.0 s
5.0 sYour 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 sThe 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 sVisually, 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 sReal 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 msReal visitors wait 155 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.
Real-user CLS: 0.01
0.01For real visitors the layout shifts by 0.01 (75th percentile). Good is under 0.1.
Real-user FCP: 1.2 s
1.2 sReal visitors see the first content after 1.2 s (75th percentile). Good is under 1.8 s.
Real-user TTFB: 731 ms
731 msReal 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 msScripts block the page for only 200 ms while loading. Good is under 200 ms.
Cumulative Layout Shift: 0.006
0.006The layout barely moves while loading (CLS 0.006, good is under 0.1).
Images and page weight
Page weight: 4.3 MB in 415 requests
4.3 MBYour 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 KiB1 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 gBy 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
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
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
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
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
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
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
8 trackers load before any consent
8Before 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
21Opening 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
Go beyond the website
What your $25 Growth Playbook adds
This review found 29 issues on sparklean.com, including 14 speed issues and 1 conversion gap. 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.
- 28 research agents read your site, reviews, competitors, communities and public filings
- 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
- PDF, Markdown, CSV, Notion and Linear exports, and a shareable page your team can track progress on
- Refresh the playbook later to see what changed
14-day money-back guarantee: not happy for any reason, email us within 14 days and we refund in full.