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sciencebasedsupplements.com website review

Visit site (opens in a new tab)Reviewed 7 November 202618 issues · 61 checks

This review found 18 issues worth fixing on sciencebasedsupplements.com, 5 of them high impact, across 61 checks. The most urgent: 12 text elements with low contrast. 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

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

How it loaded on a phone

  1. sciencebasedsupplements.com at 0.4 s0.4 s
  2. sciencebasedsupplements.com at 0.8 s0.8 s
  3. sciencebasedsupplements.com at 1.1 s1.1 s
  4. sciencebasedsupplements.com at 1.5 s1.5 s
  5. sciencebasedsupplements.com at 1.9 s1.9 s
  6. sciencebasedsupplements.com at 2.3 s2.3 s
  7. sciencebasedsupplements.com at 2.7 s2.7 s
  8. sciencebasedsupplements.com at 3.1 s3.1 s

Speed

1 to fix78
  • Mobile performance score: 78

    78/100

    Your mobile performance score is 78. Pages that score under 90 lose visitors before the first paint.

  • Improve image delivery

    73 KiB

    2 images could be 73 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

  • Use efficient cache lifetimes

    50 ms · 7 KiB

    3 files are served with short cache lifetimes, so returning visitors download them again (7 KiB).

  • 2 third-party services on the page

    2 third-party services load with your homepage (Shopify and cloudfront.net), adding 66 KiB and 37 ms of main-thread time.

  • 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.

2 checks passed
  • Main-thread work: 0.8 s

    A phone's processor spends 0.8 s on main-thread work while loading, 236 ms of it running JavaScript. That is comfortably low.

  • Server response: 4 ms

    4 ms

    Your server sent the HTML in 4 ms, well inside Google's 600 ms guideline.

Core Web Vitals

4 to fix77
  • Largest Contentful Paint: 4.7 s

    4.7 s

    Your largest element takes 4.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

  • Speed Index: 5.0 s

    5.0 s

    Visually, the page fills in at 5.0 s (Speed Index). Good is under 3.4 s.

  • Time to Interactive: 4.8 s

    4.8 s

    The page becomes fully interactive after 4.8 s. Good is under 3.8 s.

  • First Contentful Paint: 1.8 s

    1.8 s

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

  • Not enough real-visitor data yet

    Chrome's UX Report (opens in a new tab) has too little real-visitor traffic for this site, so the figures here are lab measurements from Google's test phone on a throttled 4G connection.

2 checks passed
  • 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

1 to fix97
  • An image on the first screen is lazy-loaded

    female-friends-walking.jpg is on the first screen but marked loading="lazy", so the browser waits before fetching it and the page looks finished later. Load it eagerly (and give it fetchpriority="high" if it is the main image).

  • 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: 42.8 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

3 checks passed
  • Page weight: 1.3 MB in 159 requests

    1.3 MB

    Your homepage downloads 1.3 MB in 159 requests on a phone: other files 673 KiB (79), images 284 KiB (11) and scripts 164 KiB (39). That is a lean page.

  • Images use modern formats

    Every sizeable image is WebP, AVIF or SVG.

  • Images are sized for phones

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

Accessibility

3 to fixGoogle 9795
  • 12 text elements with low contrast

    12 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.

  • All page content should be contained by landmarks (4 elements)

    All page content should be contained by landmarks: 4 elements on the page fail this check, rated moderate by axe-core.

2 checks passed
  • Every image has alt text

    All 11 images in the HTML carry an alt attribute.

  • 49 automated accessibility rules passed

    axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 52 WCAG 2.2 A/AA and best-practice rules on the phone render: 49 passed and 3 failed. 1 more need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.

SEO

4 to fixGoogle 9275
  • No meta description

    No meta description, so Google writes its own snippet from whatever text it finds.

  • Title is short (25 characters)

    Your title is only 25 characters: “Science Based Supplements”. Between 30 and 65 characters leaves room to say what you do and for whom.

  • No social preview image

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

  • One H1 headline

    Your <h1> is empty.

  • 42 internal links, 1 external

    The homepage links to 42 pages on sciencebasedsupplements.com and 1 external page.

4 checks passed
  • Canonical URL set

    The canonical URL is https://sciencebasedsupplements.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://sciencebasedsupplements.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 sameAs (social profiles); description and contact details would complete it.

  • Text is in the HTML

    Your server sends the page's text in the HTML (365 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 to fix95
  • 4 pages without a meta description

    /collections/all, /policies/shipping-policy, /pages/contact and /policies/refund-policy have no meta description, so Google writes the search snippet from whatever text it finds.

  • 15 internal pages checked

    We fetched 15 pages linked from your homepage (of 18 found) and read each the way a search engine does.

6 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.

  • 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 15 pages that loaded have a <title>.

Best practices

Google 100100
3 checks passed
  • No console errors

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

  • Tap targets are thumb-sized

    18 of 18 tappable elements near the top are at least 24 px.

  • Mobile viewport set

    The page declares a mobile viewport.

Content and conversion

4 to fix64
  • 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 direct contact details

    No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

  • Only about 167 words

    The homepage has only about 167 words of visible text; thin pages give Google and first-time buyers little to go on.

  • 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.

3 checks passed
  • Clear next step on the first screen

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

  • 2 calls to action

    The homepage has 2 calls to action, for example “Shop all” and “Contact information”.

  • 3 short forms

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

Privacy and tracking

  • 6 cookies set on arrival

    6

    Opening the homepage sets 6 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.

  • 3 other companies contacted

    Loading the homepage contacts 3 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.

1 checks passed
  • No known trackers before consent

    No known advertising or analytics trackers load before a visitor clicks anything (measured from a US location before any click).

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 sciencebasedsupplements.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 1 app. It is code from another company running for your shoppers.

Apps your storefront loads

cloudfront.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
Shopify

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

Go beyond the website

What your $25 Growth Playbook adds

This review found 18 issues on sciencebasedsupplements.com, including 5 speed issues, 4 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.

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  • Ideal customer profile, buyer segments and buying-stage funnel
  • Ranked channels, outreach sequences and content angles
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  • 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
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