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sth.nhs.uk

https://sth.nhs.uk· First analyzed 15 May 2026· Updated 15 May 2026
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sth.nhs.uk
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Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

18.194.96.163

Site Location

🇬🇧 United Kingdomvia tld

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16509

Organization

AWS EC2 (eu-central-1)

Server

Apache

CDN

CloudFront

Nameservers

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

Performance

100

Core Web Vitals

Weight

First Contentful Paint
478 ms10%
Speed Index
621 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
287 KB
36 requests

Image Optimization

WebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

9 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Analytics

2
Google Analytics
Facebook Pixel

Libraries

1
jQueryv1.12.4

UI Components

1
Slick Carousel

Fonts

1
Google Fonts

Advertising

1
Google Ads

Web Servers

1
Apache

SEO Analysis

C66/100
20
6
0
Meta Tags9/15
Content11/12
Headings3/8
Technical18/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile2/4
Indexability3/3
S
sth.nhs.uksth.nhs.uk

Sheffield Teaching Hospital

We are one of the largest and busiest NHS Teaching Trusts caring for over 2 million patients every year across our 5 hospitals and extensive community

Title Length27 chars

Recommended: 50-60 chars (~156px / 580px)

Description Length150 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    233 URLs

    robots.txt

    2 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 13 2

    This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

    Sponsored

    AI & LLM Readiness

    D46/100
    Bot Access
    20/25
    Machine Read.
    10/25
    Schema Data
    0/25
    Citation
    16/25

    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
    blockquotesnav
    Text ratio:13%
    Words:768
    Token eff.:Optimal
    Sections/1K:5.2
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary66w
    Descriptive Headingsavg 8.8w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (7)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    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.
    C
    65/100
    7
    Passed
    4
    Critical
    3
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    11/20
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    0/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 recommendations
    • •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.
    74/100
    A+
    29 mg
    CO₂e / view
    286.7 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    33 mg
    vs
    Returning (cached)
    17 mg
    Annual (10K/mo)
    3.5 kg
    Emission Segments
    Data Center
    1 mg
    Network
    9 mg
    Device
    19 mg
    Resource Breakdown
    JavaScript
    62.4 KB
    Images
    177.8 KB
    CSS
    36.3 KB
    Fonts
    2.1 KB
    HTML
    8.1 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    C

    Security Score

    66%Fair
    Interactive

    HTTPS

    No WAF

    161d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Amazon

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    09.04.2026

    Valid Until

    23.10.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    www.sth.nhs.uksth.nhs.uk

    SHA-256 Fingerprint

    5C:B7:71:85:4F:BC:B5:FA:44:FD:CE:B8:28:3D:2E:DA:73:F2:38:29...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(public, no-cache, must-revalidate)
    content-encoding
    📦 Gzip(gzip)
    content-length
    7967
    content-type
    text/html; charset=UTF-8
    date
    Fri, 15 May 2026 21:06:50 GMT
    expires
    Thu, 19 Nov 1981 08:52:00 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    sth.nhs.uk

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    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
    62/100
    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
    3 recommendations
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Open Sans

    WCAG AA
    79/100
    Readability
    /30
    22/30

    14px · LH 1.43

    Hierarchy
    /20
    17/20

    2.57x ratio

    WCAG
    /25
    22/25

    4.56:1 min contrast

    Performance
    /25
    18/25

    1 font · 2 req

    Heading Font

    Open Sans

    Sans36px

    Body Font

    Open Sans

    Sans14px

    Contrast Ratio

    4.56:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~45 CPL

    Optimal (45–75)
    36px
    h1
    24px
    h3
    14px
    p

    ⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

    ✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

    ✅ Optimal line length: ~45 chars/line (ideal 45–75 CPL).

    ❌ Very complex text: Flesch score 18/100. Consider shorter sentences and simpler words.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.6:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    GGoogle FontsFlesch 19

    Color Palette

    10 unique colors
    Light
    #ffffff
    Background· 66.2%
    #005eb8
    Primary· 7.2%
    #141a30
    Secondary· 4%
    #d9e1e4
    Secondary· 4%
    #949fab
    Secondary· 3.9%
    #617a99
    Secondary· 3%
    #1e4988
    Accent· 1.8%
    #99bfbc
    Secondary· 1.8%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    Social Media

    1
    Facebook SDKFree

    Social widgets and sharing tools

    3

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    13 Resources

    7
    Scripts
    6
    Styles
    1
    Async
    4
    Defer

    Top Script Sources

    local(6)connect.facebook.net(1)

    Website Identity

    sth.nhs.uk

    Location detected: 🇬🇧 United Kingdomvia tld
    en

    Sponsored

    Last analyzed: 15 May 2026 at 21:06

    Historical Analysis & Change Tracking