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shirtz.cool website review
Visit site (opens in a new tab)Reviewed 4 November 202633 issues · 83 checks
This review found 33 issues worth fixing on shirtz.cool, 10 of them high impact, across 83 checks. The most urgent: page weight: 10.0 MB in 285 requests. 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
83B- #24,756 of 107,010 reviewed websitesbeats 72%
- #16,270 of 60,424 online storesbeats 67%
- #15,783 of 55,096 Shopify storesbeats 65%
Closest competitors among Shopify stores
Compare side by sideShow as table
| Date | Real-visitor load time (LCP) |
|---|---|
| May 16, 2026 | 1.5 s |
| May 23, 2026 | 1.5 s |
| May 30, 2026 | 1.4 s |
| Jun 6, 2026 | 1.4 s |
| Jun 13, 2026 | 1.5 s |
| Jun 20, 2026 | 1.5 s |
| Jun 27, 2026 | 1.5 s |
| Jul 4, 2026 | 1.5 s |
| Jul 11, 2026 | 1.5 s |
| Jul 18, 2026 | 1.6 s |
| Jul 25, 2026 | 1.5 s |
| Aug 1, 2026 | 1.5 s |
| Aug 8, 2026 | 1.5 s |
| Aug 15, 2026 | 1.4 s |
| Aug 22, 2026 | 1.4 s |
| Aug 29, 2026 | 1.4 s |
| Sep 5, 2026 | 1.4 s |
| Sep 12, 2026 | 1.4 s |
| Sep 19, 2026 | 1.4 s |
| Sep 26, 2026 | 1.4 s |
| Oct 3, 2026 | 1.4 s |
| Oct 10, 2026 | 1.4 s |
| Oct 17, 2026 | 1.4 s |
| Oct 24, 2026 | 1.4 s |
| Oct 31, 2026 | 1.3 s |
Show as table
| Date | Real-visitor tap response (INP) |
|---|---|
| May 16, 2026 | 110 ms |
| May 23, 2026 | 111 ms |
| May 30, 2026 | 112 ms |
| Jun 6, 2026 | 115 ms |
| Jun 13, 2026 | 118 ms |
| Jun 20, 2026 | 119 ms |
| Jun 27, 2026 | 120 ms |
| Jul 4, 2026 | 121 ms |
| Jul 11, 2026 | 123 ms |
| Jul 18, 2026 | 124 ms |
| Jul 25, 2026 | 122 ms |
| Aug 1, 2026 | 120 ms |
| Aug 8, 2026 | 119 ms |
| Aug 15, 2026 | 117 ms |
| Aug 22, 2026 | 116 ms |
| Aug 29, 2026 | 114 ms |
| Sep 5, 2026 | 113 ms |
| Sep 12, 2026 | 112 ms |
| Sep 19, 2026 | 113 ms |
| Sep 26, 2026 | 112 ms |
| Oct 3, 2026 | 121 ms |
| Oct 10, 2026 | 121 ms |
| Oct 17, 2026 | 121 ms |
| Oct 24, 2026 | 123 ms |
| Oct 31, 2026 | 115 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
Speed
Main-thread work: 4.3 s
A phone's processor spends 4.3 s on main-thread work while loading, 1.7 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.
4,013 HTML elements
The page has 4,013 HTML elements. Above 1,500, rendering and every interaction get slower on phones.
Improve image delivery
6.6 MB129 images could be 6.6 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.
Mobile performance score: 58
58/100Your mobile performance score is 58. Pages that score under 90 lose visitors before the first paint.
Render-blocking requests
750 ms4 files block the first paint until they finish downloading. Deferring or inlining them could save about 750 ms.
8 long tasks on the main thread
8 long tasks block the main thread while loading, the longest for 540 ms. During a long task the page ignores taps.
Klaviyo adds 135 ms
135 msKlaviyo costs a phone 135 ms of main-thread work and 327 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.
7 third-party services on the page
7 third-party services load with your homepage (Klaviyo, Hotjar and Shopify and others), adding 946 KiB and 254 ms of main-thread time.
Reduce unused CSS
150 ms · 161 KiBAbout 161 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 150 ms faster on a phone.
Use efficient cache lifetimes
100 ms · 21 KiB7 files are served with short cache lifetimes, so returning visitors download them again (21 KiB).
Reduce unused JavaScript
120 KiBAbout 120 KiB of JavaScript is downloaded but never used on this page.
Font display
50 msWeb fonts hide text while they load. Setting font-display: swap shows text immediately (about 50 ms).
Legacy JavaScript
24 KiBPolyfills for old browsers add 24 KiB JavaScript that modern phones do not need.
Minify CSS
12 KiB12 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.
Minify JavaScript
2 KiB2 KiB could be saved by minifying JavaScript.
1 checks passed
Server response: 7 ms
7 msYour server sent the HTML in 7 ms, well inside Google's 600 ms guideline.
Core Web Vitals
Time to Interactive: 14.7 s
14.7 sThe page becomes fully interactive after 14.7 s. Good is under 3.8 s.
Speed Index: 8.3 s
8.3 sVisually, the page fills in at 8.3 s (Speed Index). Good is under 3.4 s.
Largest Contentful Paint: 4.9 s
4.9 sYour largest element takes 4.9 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.
Total Blocking Time: 588 ms
588 msScripts block taps and scrolling for 588 ms in total while the page loads. Good is under 200 ms.
First Contentful Paint: 1.8 s
1.8 sThe first text or image appears after 1.8 s on a phone. Good is under 1.8 s.
1 image without width and height
1 image have no width and height attributes, so the layout jumps as each one loads.
Tap response (INP) held steady for real visitors
+8%Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 110 ms to 115 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).
Largest content (LCP) held steady for real visitors
-9%Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 1.5 s to 1.3 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).
7 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: 1.9 s
1.9 sReal visitors wait 1.9 s for the largest content to appear (75th percentile). Good is under 2.5 s.
Real-user INP: 104 ms
104 msReal visitors wait 104 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.
Real-user CLS: 0.10
0.10For real visitors the layout shifts by 0.10 (75th percentile). Good is under 0.1.
Real-user FCP: 1.1 s
1.1 sReal visitors see the first content after 1.1 s (75th percentile). Good is under 1.8 s.
Real-user TTFB: 419 ms
419 msReal visitors wait 419 ms for your server to start answering (75th percentile). Good is under 800 ms.
Cumulative Layout Shift: 0
0The layout barely moves while loading (CLS 0, good is under 0.1).
Images and page weight
Page weight: 10.0 MB in 285 requests
10.0 MBYour homepage downloads 10.0 MB in 285 requests on a phone: images 8.6 MB (162), scripts 706 KiB (69) and fonts 278 KiB (9). Under 2 MB keeps phones on slow connections fast.
8 images in older formats
8 images (628 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.
39 images far larger than shown
174 KiB39 images are downloaded at several times the size a phone draws them, for example EnchantedArtboard2.jpg at 390 px wide, shown at 126 px. Resized copies would save about 174 KiB.
About 2.8 g of CO₂ per visit
2.84 gBy the Sustainable Web Design model, a visit to your homepage emits about 2.84 g of CO₂e: 341.2 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
3 buttons without a name
3 buttons have no accessible name, so screen readers announce just “button”.
11 tap targets too small
11 tap targets are too small or too close together to hit reliably with a finger.
6 text elements with low contrast
6 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.
7 images without alt text
7 images have no alt text, which hurts accessibility and image search.
All page content should be contained by landmarks (12 elements)
All page content should be contained by landmarks: 12 elements on the page fail this check, rated moderate by axe-core.
7 links without text
7 visible links have no text or label, so screen readers cannot say where they go.
2 form fields without a label
2 form fields have no label, so screen readers announce an empty box and autofill guesses.
Headings skip levels
Headings skip levels (h1 → h3, h1 → h3 and h1 → h4), which makes the page harder to scan with a screen reader.
1 checks passed
46 automated accessibility rules passed
axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 53 WCAG 2.2 A/AA and best-practice rules on the phone render: 46 passed and 7 failed. 1 more need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.
SEO
Title is short (11 characters)
Your title is only 11 characters: “Cool Shirtz”. Between 30 and 65 characters leaves room to say what you do and for whom.
Meta description is short (37 characters)
Your meta description is only 37 characters: “Only Cool Shirtz - Shipped Worldwide.”. 70 to 160 characters is enough to sell the click.
8 H1 headlines
There are 8 <h1> headlines (“Cool Shirtz”, “EXPLORE THECOLLECTION” and “EXPLORE THE COLLECTION”). One clear main headline is easier for people and search engines.
160 internal links, 13 external
The homepage links to 160 pages on shirtz.cool and 13 external pages.
5 checks passed
Canonical URL set
The canonical URL is https://shirtz.cool/.
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://shirtz.cool/sitemap.xml.
AI search readiness
Organization data is thin (3 of 6 facts)
Your Organization JSON-LD is missing logo, description and contact details. These are the facts AI assistants use to describe a business and to tell it apart from others with a similar name.
3 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.
Text is in the HTML
Your server sends the page's text in the HTML (571 words), so crawlers that don't run JavaScript still read it.
llms.txt published
The site publishes https://shirtz.cool/llms.txt (6 KiB, 8 links), a plain-text guide to the site for AI tools.
Other pages
15 pages without a meta description
https://shirtz.cool/collections/minecraft-x-very-cool, https://shirtz.cool/collections/minecraft-x-very-cool-tops, https://shirtz.cool/collections/minecraft-x-very-cool-bottoms, https://shirtz.cool/collections/minecraft-x-very-cool-accessories, https://shirtz.cool/collections/minecraft-x-very-cool-decor and https://shirtz.cool/collections/tops and 9 others have no meta description, so Google writes the search snippet from whatever text it finds.
15 pages without an H1
https://shirtz.cool/collections/minecraft-x-very-cool, https://shirtz.cool/collections/minecraft-x-very-cool-tops, https://shirtz.cool/collections/minecraft-x-very-cool-bottoms, https://shirtz.cool/collections/minecraft-x-very-cool-accessories, https://shirtz.cool/collections/minecraft-x-very-cool-decor and https://shirtz.cool/collections/tops and 9 others 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 97 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
2 JavaScript errors while loading
2 errors were logged to the browser console while the page loaded, for example “Invalid left-hand side in assignment”.
2 checks passed
Tap targets are thumb-sized
164 of 184 tappable elements near the top are at least 24 px.
Mobile viewport set
The page declares a mobile viewport.
Content and conversion
Thin social proof
Social proof on the homepage: 9 testimonial or review blocks. Pairing it with named testimonials or customer logos makes it far more convincing.
No direct contact details
No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.
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 574 words of copy
The homepage carries about 574 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: “Shop Collection”.
19 calls to action
The homepage has 19 calls to action, for example “Register Now”, “Shop Collection” and “EXPLORE THECOLLECTION Shop Now”.
4 short forms
4 short forms (1 field at most) are right on the homepage.
Analytics in place
Analytics detected: Hotjar.
Privacy and tracking
2 trackers load before any consent
2Before a visitor clicks anything, the page loads Hotjar and Klaviyo (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.
5 cookies set on arrival
5Opening the homepage sets 5 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.
16 other companies contacted
Loading the homepage contacts 16 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 shirtz.cool, 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
- Hotjar
- Hosting
- Shopify
Upkeep, stack, hiring and company data from programmable.info
Go beyond the website
What your $25 Growth Playbook adds
This review found 33 issues on shirtz.cool, including 13 speed issues, 3 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.
- 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
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