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library.nhs.uk

https://library.nhs.uk· First analyzed 21 May 2026· Updated 21 May 2026
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library.nhs.uk
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Hosting Provider

Microsoft Azure
azure.microsoft.com

IP Address

51.145.118.121

Site Location

🇬🇧 United Kingdomvia tld

Server Location

🇬🇧 City of London, United Kingdom

ASN

AS8075

Organization

Microsoft Azure Cloud (uksouth)

Server

Apache

Nameservers

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

Performance

92

Core Web Vitals

Weight

First Contentful Paint
1.3 s10%
Speed Index
1.7 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
211 KB
30 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
Nightingalev2.3.1.4
by Tony Blacker, NHS Leadership Academy
View Theme

Technology Stack

11 Technologies Detected

Plugins

5
Cookie NoticeThe Events Calendar
Duracelltomi Google Tag Manager
Nightingale Companion
Yoast SEO

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

B76/100
21
9
0
Meta Tags12/15
Content8/12
Headings8/8
Technical24/25
E-E-A-T0/7
Images3/7
Links2/5
URL5/5
Social4/5
Freshness4/4
Mobile3/4
Indexability3/3
L
library.nhs.uklibrary.nhs.uk

Search for knowledge and evidence - Knowledge and Library Services

NHS Knowledge and Library Services taking the heavy lifting out of getting evidence into practice. Scroll down to search the Knowledge and Library Hub

Title Length66 chars

Recommended: 50-60 chars (~403px / 580px)

Description Length150 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

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    Crawlability

    Sitemap

    Type: index

    4 URLs

    4 sub-sitemaps

    robots.txt

    6 rules

    Allows all crawlers

    Local SEO

    Local Search Readiness

    13/100
    Poor
    4 12 1

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

    Sponsored

    AI & LLM Readiness

    D51/100
    Bot Access
    19/25
    Machine Read.
    11/25
    Schema Data
    4/25
    Citation
    17/25

    AI Bot Access

    13/14 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
    navheader/footer
    Text ratio:2%
    Words:329
    Token eff.:Optimal
    Sections/1K:12.2
    Depth:2/5

    Structured Data

    4 JSON-LD
    WebSiteBreadcrumbListSearchAction

    Citation Readiness

    Opening Summary36w
    Descriptive Headingsavg 6.5w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    AI readiness recommendation preview...
    Upgrade to view recommendations

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    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
    89/100
    16
    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
    17/20
    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
    15/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    12/15
    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.
    82/100
    A+
    21 mg
    CO₂e / view
    210.6 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    24 mg
    vs
    Returning (cached)
    12 mg
    Annual (10K/mo)
    2.6 kg
    Emission Segments
    Data Center
    1 mg
    Network
    6 mg
    Device
    14 mg
    Resource Breakdown
    JavaScript
    56.5 KB
    Images
    60.8 KB
    CSS
    73.4 KB
    Fonts
    936 B
    HTML
    19.0 KB
    Green Hosting Verified
    Microsoft Azure
    Provider Match
    2 recommendations
    • •Carbon footprint recommendation preview...
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    F

    Security Score

    36%Critical
    Interactive

    HTTPS

    No WAF

    70d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    01.05.2026

    Valid Until

    30.07.2026

    Subject Alternative Names (2)

    library.nhs.ukwww.library.nhs.uk

    SHA-256 Fingerprint

    6F:2F:4F:41:4D:92:81:30:16:AE:AB:27:4C:A8:BA:72:1A:0F:09:76...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 1s(max-age=1)
    connection
    Keep-Alive
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    date
    Thu, 21 May 2026 03:40:06 GMT
    keep-alive
    timeout=5, max=100
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    library.nhs.uk

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Notice (WP)

    Cookie Consent Banner
    Cookie Notice (WP)
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookie Notice (WP)
    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.
    B
    79/100
    Mobile Friendly80 breakpoints
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Frutiger W01

    WCAG Partial
    78/100
    Readability
    /30
    26/30

    19px · LH 1.47

    Hierarchy
    /20
    20/20

    2.53x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    1:1 min contrast

    Performance
    /25
    15/25

    1 font · 3 req

    Heading Font

    Frutiger W01

    Sans48px

    Body Font

    Frutiger W01

    Sans19px

    Contrast Ratio

    1:1

    2 issues

    Reading Comfort

    ~37 CPL

    Narrow lines
    48px
    h1
    32px
    h2
    24px
    h3
    19px
    p

    ✅ Excellent readability: 19px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.47 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 48/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.0:1).

    ✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

    ✅ Strong hierarchy: Headlines are 2.5x larger than body text.

    GGoogle FontsBuy on MyFontsFluid Type (rem)Flesch 48

    Color Palette

    5 unique colors
    Light
    #ffffff
    Background· 38.5%
    #005eb8
    Primary· 20%
    #7da5c7
    Secondary· 4.4%
    #104480
    Accent· 2.6%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

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    Scripts & Styles

    21 Resources

    13
    Scripts
    8
    Styles
    3
    Async
    0
    Defer

    Top Script Sources

    library.nhs.uk(11)google-analytics.com(1)googletagmanager.com(1)

    Website Identity

    Search for knowledge and evidence - Knowledge and Library Services

    NHS Knowledge and Library Services taking the heavy lifting out of getting evidence into practice. Scroll down to search the Knowledge and Library Hub

    library.nhs.uk/
    Location detected: 🇬🇧 United Kingdomvia tld
    en-GB

    Social Profiles

    X (Twitter)

    Sponsored

    Last analyzed: 21 May 2026 at 03:40

    Historical Analysis & Change Tracking