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codexlabs.uk website review
Visit site (opens in a new tab)Reviewed 6 November 202627 issues · 92 checks
This review found 27 issues worth fixing on codexlabs.uk, 8 of them high impact, across 92 checks. The most urgent: improve image delivery. 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
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
codexlabs.uk does not allow embedding, so this is Google's rendering of the page.
Speed
Improve image delivery
2.3 s · 527 KiB7 images could be 527 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 2.3 s faster on a phone.
Mobile performance score: 68
68/100Your mobile performance score is 68. 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.
Reduce unused CSS
620 ms · 84 KiBAbout 84 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 620 ms faster on a phone.
Reduce unused JavaScript
470 ms · 96 KiBAbout 96 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 470 ms faster on a phone.
Legacy JavaScript
150 ms · 26 KiBPolyfills for old browsers add 26 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.
8 third-party services on the page
8 third-party services load with your homepage (Klaviyo, Google CDN and Stamped.io and others), adding 274 KiB and 118 ms of main-thread time.
Minify CSS
20 ms · 11 KiB11 KiB could be saved by minifying CSS.
Use efficient cache lifetimes
23 KiB8 files are served with short cache lifetimes, so returning visitors download them again (23 KiB).
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: 1.6 s
A phone's processor spends 1.6 s on main-thread work while loading, 365 ms of it running JavaScript. That is comfortably low.
Server response: 7 ms
7 msYour server sent the HTML in 7 ms, well inside Google's 600 ms guideline.
Core Web Vitals
Largest Contentful Paint: 13.8 s
13.8 sYour largest element takes 13.8 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “ANTÜ Repair”.
Time to Interactive: 14.0 s
14.0 sThe page becomes fully interactive after 14.0 s. Good is under 3.8 s.
Speed Index: 6.5 s
6.5 sVisually, the page fills in at 6.5 s (Speed Index). Good is under 3.4 s.
First Contentful Paint: 1.9 s
1.9 sThe first text or image appears after 1.9 s on a phone. Good is under 1.8 s.
2 images without width and height
2 images have no width and height attributes, so the layout jumps as each one loads.
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
0The layout barely moves while loading (CLS 0, good is under 0.1).
Total Blocking Time: 0 ms
0 msScripts block the page for only 0 ms while loading. Good is under 200 ms.
Images and page weight
Page weight: 7.3 MB in 160 requests
7.3 MBYour homepage downloads 7.3 MB in 160 requests on a phone: media 4.0 MB (2), images 1.9 MB (13) and other files 736 KiB (84). Under 2 MB keeps phones on slow connections fast.
2 images over 500 KB
2 images weigh 2.0 MB together. On a phone connection a single image that size takes seconds.
7 images far larger than shown
2.3 MB7 images are downloaded at several times the size a phone draws them, for example tedx-barb-stage.webp at 4,000 px wide, shown at 294 px. Resized copies would save about 2.3 MB.
4 images below the first screen load straight away
4 images further down the page (2.3 MB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.
3 images in older formats
3 images (2.0 MB) 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 2.1 g of CO₂ per visit
2.08 gBy the Sustainable Web Design model, a visit to your homepage emits about 2.08 g of CO₂e: 249.2 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.
Accessibility
3 text elements with low contrast
3 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.
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.
4 form fields without a label
4 form fields have no label, so screen readers announce an empty box and autofill guesses.
Headings skip levels
Headings skip levels (h2 → h4), which makes the page harder to scan with a screen reader.
Elements with visible text labels do not have matching accessible names.
Elements with visible text labels do not have matching accessible names. (4 elements).
2 checks passed
Every image has alt text
All 23 images in the HTML carry an alt attribute.
46 automated accessibility rules passed
axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 48 WCAG 2.2 A/AA and best-practice rules on the phone render: 46 passed and 2 failed. 2 mores need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.
SEO
3 links with vague text
3 links use generic text like “click here” or “learn more”, which tells Google nothing about the page behind them.
135 internal links, 12 external
The homepage links to 135 pages on codexlabs.uk and 12 external pages.
8 checks passed
Meta description: 160 characters
Your meta description is 160 characters: “High-efficacy, microbiome-supporting skincare grounded in science. Discover the power of plant-based biotech beauty wit…”.
One H1 headline
Your main headline reads: “We Restore Your Skin. From the Inside Out.”.
Title: 58 characters
Your title is a healthy 58 characters: “Codex Labs | Sustainable, Data-Driven... – Codex Labs U...”.
Canonical URL set
The canonical URL is https://codexlabs.uk/.
Structured data in place
Structured data found: BreadcrumbList, 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://codexlabs.uk/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: 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 (726 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
5 pages without an H1
/pages/eczema-product, /collections, /pages/acne, /pages/cancer-therapy-product and /pages/about-us 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 38 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.
Every page has a meta description
All 15 pages that loaded have a meta description.
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
Deprecated browser APIs
The page uses 1 deprecated browser API that will stop working in future browsers (“CSS appearance value `slider-vertical` is not standardized and will be removed.”).
2 JavaScript errors while loading
2 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.
2 checks passed
Tap targets are thumb-sized
28 of 29 tappable elements near the top are at least 24 px.
Mobile viewport set
The page declares a mobile viewport.
Security and trust
Short HSTS lifetime
HSTS is set, but max-age is 91 days; one year is the recommended minimum.
No Referrer-Policy
No Referrer-Policy header, so full URLs can leak to the sites you link to.
No Permissions-Policy
No Permissions-Policy header to switch off camera, microphone and location for embedded content.
Deprecated X-XSS-Protection
X-XSS-Protection is set to “1; mode=block”; the header is deprecated and can introduce bugs. Use 0 or remove it.
No security.txt
There is no /.well-known/security.txt telling researchers how to report a security problem to you.
7 checks passed
Served over HTTPS
The homepage is served over HTTPS (codexlabs.uk).
Valid certificate (61 days left)
The certificate from Let's Encrypt · YE2 verifies for codexlabs.uk and is valid for another 61 days.
Protected from clickjacking
X-Frame-Options or a frame-ancestors policy stops other sites framing yours.
Content-Security-Policy set
A Content-Security-Policy is set, the main browser-side defence against injected scripts.
http:// redirects to https
http://codexlabs.uk redirects to the secure version.
HTTP/2 and HTTP/3
The server speaks HTTP/2 and advertises HTTP/3, so browsers load many files over one connection.
All 50 links work
All 50 links checked from your homepage (40 internal, 10 external) answered without errors.
Domain and trust
No CAA record
codexlabs.uk has no CAA record, so any certificate authority may issue a certificate for it. A CAA record naming your provider (for example letsencrypt.org) closes that door.
DNSSEC is off
codexlabs.uk's DNS answers are not signed. DNSSEC stops attackers forging them to send visitors or email elsewhere; most registrars switch it on in a click, though most sites still run without it.
2 checks passed
Domain is 3 years old
3 yearscodexlabs.uk was registered in Jul 2023 through Namecheap, Inc.. An established domain carries more trust with email providers and search engines.
Registered until Jul 2027
codexlabs.uk is registered until Jul 2027.
Content and conversion
Thin social proof
Social proof on the homepage: 2 trust badges. 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.
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 442 words of copy
The homepage carries about 442 words of visible text.
3 checks passed
Clear next step on the first screen
On a phone, the first screen shows a clear next step: “LEARN MORE”.
6 calls to action
The homepage has 6 calls to action, for example “Register / Login”, “Learn More” and “Subscribe”.
8 short forms
8 short forms (2 fields at most) are right on the homepage.
Email authentication
DMARC is monitor-only (p=none)
DMARC is set to p=none, so mail pretending to be codexlabs.uk is still delivered. Add a report address, check the reports, then move to quarantine.
Email authentication score: 70/100
Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.
2 checks passed
SPF in place (~all)
An SPF record lists your sending servers and marks other mail as suspicious (~all): “v=spf1 include:spf.efwd.registrar-servers.com ~all”.
DKIM signing found
A DKIM key is published (selector “s1” and “s2”), so receivers can verify mail really came from you.
Privacy and tracking
1 tracker load before any consent
1Before a visitor clicks anything, the page loads 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.
4 cookies set on arrival
4Opening the homepage sets 4 cookies, 1 of them by other companies (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.
12 other companies contacted
Loading the homepage contacts 12 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.
Apps on your store
Your storefront loads 1 app. It is code from another company running for your shoppers.
None of the apps your storefront loads is on the list of apps with a known security problem.
Apps your storefront loads
Klaviyo Email Marketing Sms
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 Hosted
Upkeep, stack, hiring and company data from programmable.info
Go beyond the website
What your $25 Growth Playbook adds
This review found 27 issues on codexlabs.uk, including 10 speed issues, 1 SEO issue and 3 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
14-day money-back guarantee: not happy for any reason, email us within 14 days and we refund in full.