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jymsupplementscience.com website review
Visit site (opens in a new tab)Reviewed 8 November 202638 issues · 84 checks
This review found 38 issues worth fixing on jymsupplementscience.com, 12 of them high impact, across 84 checks. The most urgent: reduce unused JavaScript. 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
82B- #25,660 of 91,506 reviewed websitesbeats 66%
- #16,091 of 48,337 online storesbeats 60%
- #15,494 of 43,536 Shopify storesbeats 57%
Closest competitors among Shopify stores
Compare side by sideShow as table
| Date | Real-visitor load time (LCP) |
|---|---|
| May 16, 2026 | 1.7 s |
| May 23, 2026 | 1.7 s |
| May 30, 2026 | 1.8 s |
| Jun 6, 2026 | 1.8 s |
| Jun 13, 2026 | 1.8 s |
| Jun 20, 2026 | 1.9 s |
| Jun 27, 2026 | 1.9 s |
| Jul 4, 2026 | 1.9 s |
| Jul 11, 2026 | 1.9 s |
| Jul 18, 2026 | 1.9 s |
| Jul 25, 2026 | 1.9 s |
| Aug 1, 2026 | 1.9 s |
| Aug 8, 2026 | 1.9 s |
| Aug 15, 2026 | 1.9 s |
| Aug 22, 2026 | 1.8 s |
| Aug 29, 2026 | 1.8 s |
| Sep 5, 2026 | 1.8 s |
| Sep 12, 2026 | 1.8 s |
| Sep 19, 2026 | 1.8 s |
| Sep 26, 2026 | 1.8 s |
| Oct 3, 2026 | 1.7 s |
| Oct 10, 2026 | 1.8 s |
| Oct 17, 2026 | 1.9 s |
| Oct 24, 2026 | 1.9 s |
| Oct 31, 2026 | 1.9 s |
Show as table
| Date | Real-visitor tap response (INP) |
|---|---|
| May 16, 2026 | 120 ms |
| May 23, 2026 | 121 ms |
| May 30, 2026 | 128 ms |
| Jun 6, 2026 | 129 ms |
| Jun 13, 2026 | 129 ms |
| Jun 20, 2026 | 131 ms |
| Jun 27, 2026 | 135 ms |
| Jul 4, 2026 | 137 ms |
| Jul 11, 2026 | 138 ms |
| Jul 18, 2026 | 138 ms |
| Jul 25, 2026 | 137 ms |
| Aug 1, 2026 | 135 ms |
| Aug 8, 2026 | 131 ms |
| Aug 15, 2026 | 130 ms |
| Aug 22, 2026 | 129 ms |
| Aug 29, 2026 | 129 ms |
| Sep 5, 2026 | 129 ms |
| Sep 12, 2026 | 129 ms |
| Sep 19, 2026 | 135 ms |
| Sep 26, 2026 | 136 ms |
| Oct 3, 2026 | 137 ms |
| Oct 10, 2026 | 137 ms |
| Oct 17, 2026 | 135 ms |
| Oct 24, 2026 | 130 ms |
| Oct 31, 2026 | 134 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
0.4 s
0.8 s
1.1 s
1.5 s
1.9 s
2.3 s
2.6 s
3.0 s
Speed
Reduce unused JavaScript
3.6 s · 751 KiBAbout 751 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 3.6 s faster on a phone.
Use efficient cache lifetimes
2.2 s · 471 KiB31 files are served with short cache lifetimes, so returning visitors download them again (471 KiB).
Improve image delivery
1.1 s · 710 KiB12 images could be 710 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 1.1 s faster on a phone.
8 third-party services on the page
8 third-party services load with your homepage (Shopify, alia-prod.com and rebuyengine.com and others), adding 2.6 MB and 751 ms of main-thread time.
Mobile performance score: 55
55/100Your mobile performance score is 55. Pages that score under 90 lose visitors before the first paint.
Main-thread work: 4.0 s
A phone's processor spends 4.0 s on main-thread work while loading, 1.8 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.
Reduce unused CSS
300 ms · 82 KiBAbout 82 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 300 ms faster on a phone.
Legacy JavaScript
300 ms · 75 KiBPolyfills for old browsers add 75 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 300 ms faster on a phone.
Minify JavaScript
300 ms · 52 KiB52 KiB could be saved by minifying JavaScript.
Render-blocking requests
300 ms9 files block the first paint until they finish downloading. Deferring or inlining them could save about 300 ms.
Shopify adds 172 ms
172 msShopify costs a phone 172 ms of main-thread work and 927 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.
rebuyengine.com adds 145 ms
145 msrebuyengine.com costs a phone 145 ms of main-thread work and 724 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.
1,985 HTML elements
The page has 1,985 HTML elements. Above 1,500, rendering and every interaction get slower on phones.
9 long tasks on the main thread
9 long tasks block the main thread while loading, the longest for 105 ms. During a long task the page ignores taps.
Font display
50 msWeb fonts hide text while they load. Setting font-display: swap shows text immediately (about 50 ms).
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: 6 ms
6 msYour server sent the HTML in 6 ms, well inside Google's 600 ms guideline.
Core Web Vitals
Largest Contentful Paint: 26.6 s
26.6 sYour largest element takes 26.6 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “JYM Supplement Science”.
Time to Interactive: 27.8 s
27.8 sThe page becomes fully interactive after 27.8 s. Good is under 3.8 s.
Speed Index: 10.3 s
10.3 sVisually, the page fills in at 10.3 s (Speed Index). Good is under 3.4 s.
First Contentful Paint: 4.2 s
4.2 sThe first text or image appears after 4.2 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) got 10% slower for real visitors
+10%Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 120 ms to 134 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).
Largest content (LCP) held steady for real visitors
+7%Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 1.7 s to 1.9 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).
8 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: 1.8 s
1.8 sReal visitors wait 1.8 s for the largest content to appear (75th percentile). Good is under 2.5 s.
Real-user INP: 111 ms
111 msReal visitors wait 111 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.
Real-user CLS: 0.00
0.00For real visitors the layout shifts by 0.00 (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: 430 ms
430 msReal visitors wait 430 ms for your server to start answering (75th percentile). Good is under 800 ms.
Total Blocking Time: 185 ms
185 msScripts block the page for only 185 ms while loading. Good is under 200 ms.
Cumulative Layout Shift: 0
0The layout barely moves while loading (CLS 0, good is under 0.1).
Images and page weight
Page weight: 5.8 MB in 512 requests
5.8 MBYour homepage downloads 5.8 MB in 512 requests on a phone: scripts 2.2 MB (200), images 1.4 MB (30) and other files 1.3 MB (230). Under 2 MB keeps phones on slow connections fast.
About 1.6 g of CO₂ per visit
1.63 gBy the Sustainable Web Design model, a visit to your homepage emits about 1.63 g of CO₂e: 195.6 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.
3 checks passed
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
5 tap targets too small
5 tap targets are too small or too close together to hit reliably with a finger.
1 text element with low contrast
1 text element doesn't have enough contrast against the background to read easily, especially outdoors on a phone.
3 links without text
3 visible links have no text or label, so screen readers cannot say where they go.
ARIA role should be appropriate for the element (1 element)
ARIA role should be appropriate for the element: 1 element on the page fails this check, rated minor by axe-core.
Alternative text of images should not be repeated as text (1 element)
Alternative text of images should not be repeated as text: 1 element on the page fails this check, rated minor by axe-core.
Headings skip levels
Headings skip levels (h1 → h3), which makes the page harder to scan with a screen reader.
2 checks passed
Every image has alt text
All 18 images in the HTML carry an alt attribute.
52 automated accessibility rules passed
axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 57 WCAG 2.2 A/AA and best-practice rules on the phone render: 52 passed and 5 failed. 2 mores need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.
SEO
Meta description is long (176 characters)
Your meta description is 176 characters; Google truncates after about 160, so the end of your pitch is cut.
Structured data has 1 problem
Structured data found (BreadcrumbList, Organization and WebSite) but with 1 problem, for example “WebSite: url is not an absolute URL ("jymsupplementscience.com")”.
No social preview image
No Open Graph image, so links shared on LinkedIn, Slack or Facebook show no preview picture.
149 internal links, 14 external
The homepage links to 149 pages on jymsupplementscience.com and 14 external pages.
5 checks passed
One H1 headline
Your main headline reads: “JYM Supplement Science”.
Title: 44 characters
Your title is a healthy 44 characters: “Real Science. Real Products. Unreal Results.”.
Canonical URL set
The canonical URL is https://jymsupplementscience.com/.
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://jymsupplementscience.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: 5 of 6 facts
Your Organization JSON-LD gives name, url, logo, sameAs (social profiles) and description; contact details would complete it.
Text is in the HTML
Your server sends the page's text in the HTML (815 words), so crawlers that don't run JavaScript still read it.
llms.txt published
The site publishes /llms.txt (6 KiB, 8 links), a plain-text guide to the site for AI tools.
Other pages
1 page points its canonical at the homepage
/collections/eos26-25 declares the homepage as its canonical URL, which tells Google it is a copy of the homepage and keeps it out of search results. A site-wide template setting usually causes this.
2 pages share a title
/ and /collections/eos26-25 all use the title “Real Science. Real Products. Unreal Results.”. Search engines can't tell which page to show for a search, so each competes with the others.
1 page without an H1
/products/pre-jym-preworkout has 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 65 found) and read each the way a search engine does.
4 checks passed
Linked pages load
4 pages of 15 loaded without an error (the rest turned automated requests away).
Every page has a meta description
All 4 pages that loaded have a meta description.
No linked page is hidden from search
None of the pages we checked carries a noindex tag.
Every page has a title
All 4 pages that loaded have a <title>.
Best practices
6 small tap targets
6 of 22 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.
3 third-party cookies
3 third-party cookies are set on load; browsers are restricting these, so whatever relies on them breaks.
4 JavaScript errors while loading
4 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_CONNECTION_RESET”.
Browser-reported issues
Chrome logged issues while loading the page (“Cookie”).
1 checks passed
Mobile viewport set
The page declares a mobile viewport.
Content and conversion
No call to action on the first screen
On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.
Thin social proof
Social proof on the homepage: 1 trust badge. Pairing it with named testimonials or customer logos makes it far more convincing.
No analytics detected
No analytics or tag manager detected in the HTML, so you can't measure whether any of these fixes work.
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.
About 512 words of copy
The homepage carries about 512 words of visible text.
3 checks passed
19 calls to action
The homepage has 19 calls to action, for example “Shop Collections”, “Shop All” and “Subscribe & Save”.
2 short forms
2 short forms (1 field at most) are right 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
7 trackers load before any consent
7Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Klaviyo and Meta Pixel and 2 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.
29 cookies set on arrival
29Opening the homepage sets 29 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.
55 other companies contacted
Loading the homepage contacts 55 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 jymsupplementscience.com, because details like these could help someone attack a site. Every review keeps them private, whatever they found.
Apps on your store
Your storefront loads 17 apps. Each one is code from another company running for your shoppers.
Apps your storefront loads
Consentmo Gdpr · Skio Subscriptions Yc S20 · Klaviyo Email Marketing Sms · Easy Variant Images · Bundler Bundles App · Rebuy Personalization Engine · Seo Manager Venntov · Yotpo Loyalty Rewards · Triplewhale · Applovin Shop Integration · Gdpr Backpack · hulkapps.com · govx.com · cloudfront.net · sharethis.com · affiliatly.com · nice-team.net
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
- Cloudflare
Company
- Headquarters
- Westlake Village
Upkeep, stack, hiring and company data from programmable.info
Go beyond the website
What your $25 Growth Playbook adds
This review found 38 issues on jymsupplementscience.com, including 18 speed issues, 3 SEO issues and 4 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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