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uhs.nhs.uk

https://uhs.nhs.uk· First analyzed 05 May 2026· Updated 05 May 2026
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uhs.nhs.uk
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Hosting Provider

Zengenti Ltd.

IP Address

185.18.139.230

Site Location

🇬🇧 United Kingdomvia tld

Server Location

🇬🇧 Ludlow, United Kingdom

ASN

AS60885

CDN

Varnish

Nameservers

ns3.nhs.uk.ns4.nhs.uk.ns1.nhs.uk.ns2.nhs.uk.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
293 ms10%
Speed Index
381 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.5 MB
60 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Zengenti Ltd.
CDN
Varnish

Progressive Web App

Web Manifest

Technology Stack

4 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Other

1
Polyfill.io

CSS Frameworks

1
Tailwind CSS

SEO Analysis

C62/100
16
9
0
Meta Tags10/15
Content8/12
Headings8/8
Technical13/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
U
uhs.nhs.ukuhs.nhs.uk

UHS homepage - University Hospital Southampton

UHS homepage

Title Length46 chars

Recommended: 50-60 chars (~282px / 580px)

Description Length12 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1 URLs

    robots.txt

    Local SEO

    Local Search Readiness

    25/100
    Needs Work
    8 8 2

    Sponsored

    AI & LLM Readiness

    F36/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    0/25
    Citation
    9/25

    AI Bot Access

    14/14 accessible
    AI Search
    OAI-SearchBot
    PerplexityBot
    Claude-SearchBot
    Gemini-Deep-Research
    DuckAssistBot
    Training
    GPTBot
    ClaudeBot
    Google-Extended
    Meta-ExternalAgent
    Bytespiderinfo
    Amazonbot
    Applebot-Extended
    CCBotinfo
    Fetch
    ChatGPT-User

    Machine Readability

    llms.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:2%
    Words:1,390
    Token eff.:Optimal

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary74w
    Descriptive Headingsavg 3w
    Canonical URL
    Open Graph0/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (12)
    AI readiness recommendation preview...
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    Sponsored

    Accessibility

    WCAG 2.1 Compliance

    Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
    A
    82/100
    13
    Passed
    1
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    20/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    10/15
    Verifies form fields have labels, error messages are clear, and inputs are properly associated.
    Color & Contrast
    15/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •Accessibility recommendation preview...
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    Carbon Footprint

    SWDM v4 · Eco-Score

    Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
    30/100
    F
    362 mg
    CO₂e / view
    3.5 MB
    Page Weight
    15%
    Cleaner Than
    New Visitor
    414 mg
    vs
    Returning (cached)
    207 mg
    Annual (10K/mo)
    43.5 kg
    Emission Segments
    Data Center
    18 mg
    Network
    106 mg
    Device
    238 mg
    Resource Breakdown
    JavaScript
    236.6 KB
    Images
    2.4 MB
    CSS
    787.2 KB
    HTML
    60.0 KB
    Other
    17.3 KB
    Green Hosting Verified
    Zengenti
    GWF Verified
    5 recommendations
    • •Carbon footprint recommendation preview...
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    D

    Security Score

    51%Poor
    Interactive

    HTTPS

    No WAF

    309d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    DigiCert Inc

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    09.02.2026

    Valid Until

    10.03.2027

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    uhs.nhs.uk*.uhs.nhs.uk

    SHA-256 Fingerprint

    A9:AC:B8:12:95:E1:15:B2:64:FB:DB:75:94:37:A7:18:44:5D:A7:8D...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    alt-svc
    h3=":443";ma=60;
    cache-control
    🟡 1 Hours(public, max-age=3600)
    content-encoding
    📦 Gzip(gzip)
    content-length
    61182
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    uhs-nhs-uk.mail.protection.outlook.com

    Domain Information

    uhs.nhs.uk

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Civic Cookie Control

    Cookie Consent Banner
    Civic Cookie Control
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Civic Cookie Control
    Privacy policy page linked

    Mobile Compatibility

    Viewport & Responsive Test

    Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
    C
    66/100
    Mobile Friendly1 breakpoint
    Viewport Meta
    The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
    Responsive Design
    Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
    Touch Icons
    Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
    Readable Font Size
    Base font size should be at least 16px on mobile to ensure text is readable without zooming.
    Relative Units
    Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
    No H-Scroll Risk
    No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
    Tap Targets OK
    Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
    No Fixed Widths
    No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
    Viewport
    width=device-width,initial-scale=1,shrink-to-fit=no
    1 recommendation
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Arial

    WCAG Partial
    75/100
    Readability
    /30
    25/30

    16px · LH 1.60

    Hierarchy
    /20
    12/20

    2.8x ratio

    WCAG
    /25
    16/25

    2.56:1 min contrast

    Performance
    /25
    22/25

    System fonts

    Heading Font

    Arial

    Sans45px

    Body Font

    Arial

    Sans16px

    Contrast Ratio

    2.56:1

    2 issues

    Reading Comfort

    ~36 CPL

    Narrow lines
    45px
    h1
    34px
    h2
    29px
    h3
    24px
    h4
    16px
    p

    ✅ Excellent readability: 16px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

    ❌ Very complex text: Flesch score 27/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 2.6:1).

    ❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

    ✅ Strong hierarchy: Headlines are 2.8x larger than body text.

    Flesch 27

    Color Palette

    6 unique colors
    Light
    #ffffff
    Background· 56.1%
    #e8eeee
    Background· 24.3%
    #0060bb
    Primary· 10%
    #7b9fb8
    Secondary· 4.2%
    #195489
    Accent· 2.1%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    22 Resources

    20
    Scripts
    2
    Styles
    16
    Async
    0
    Defer

    Top Script Sources

    local(14)cqc.org.uk(2)google-analytics.com(1)googletagmanager.com(1)webassistant.onconnect.app(1)

    Website Identity

    uhs.nhs.uk

    02380777222
    Location detected: 🇬🇧 United Kingdomvia tld
    📧 Microsoft 365en

    Sponsored

    Last analyzed: 05 May 2026 at 03:00

    Historical Analysis & Change Tracking