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cse.org.uk

https://cse.org.uk· First analyzed 07 May 2026· Updated 07 May 2026
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cse.org.uk
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Hosting Provider

Kinsta
cloudflare.com

IP Address

162.159.134.42

Site Location

🇬🇧 United Kingdomvia phone

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns0.phase8.net.ns2.phase8.net.ns1.phase8.net.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
747 ms10%
Speed Index
971 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
564 KB
62 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
WordPress
Infrastructure
Hosting
Kinsta
CDN
Cloudflare

Technology Stack

16 Technologies Detected

Analytics

5
Google Analytics
Google Analytics 4
Facebook Pixel
Hotjar
Microsoft Clarity

Plugins

3
Lazy Load For VideosYoutube Embed Plus
Yoast SEO

Libraries

1
jQueryv3.7.1

Other

1
Polyfill.io

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Email Marketing

1
Mailchimp

Advertising

1
Google Ads

CDN

1
Cloudflare

SEO Analysis

A82/100
25
5
0
Meta Tags12/15
Content8/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images4/7
Links4/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
C
cse.org.ukcse.org.uk

Home - Centre for Sustainable Energy

CSE supports people and organisations to tackle the climate emergency and end cold homes. Our free energy advice changes lives.

Title Length36 chars

Recommended: 50-60 chars (~221px / 580px)

Description Length127 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    117 URLs

    robots.txt

    11 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    31/100
    Needs Work
    9 8

    Sponsored

    AI & LLM Readiness

    D51/100
    Bot Access
    20/25
    Machine Read.
    10/25
    Schema Data
    7/25
    Citation
    14/25

    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
    nav
    Text ratio:2%
    Words:911
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    4 JSON-LD
    Organization×1.1WebSiteBreadcrumbListSearchAction

    Citation Readiness

    Opening Summary21w
    Descriptive Headingsavg 3w
    Canonical URL
    Open Graph2/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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
    89/100
    15
    Passed
    1
    Critical
    0
    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
    15/15
    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
    7/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

    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.
    66/100
    A
    57 mg
    CO₂e / view
    564.3 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    65 mg
    vs
    Returning (cached)
    33 mg
    Annual (10K/mo)
    6.8 kg
    Emission Segments
    Data Center
    3 mg
    Network
    17 mg
    Device
    37 mg
    Resource Breakdown
    JavaScript
    214.6 KB
    Images
    29.5 KB
    CSS
    68.5 KB
    Fonts
    1.1 KB
    HTML
    19.7 KB
    Other
    230.9 KB
    Green Hosting Verified
    Kinsta
    GWF Verified
    4 recommendations
    • •Carbon footprint recommendation preview...
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    F

    Security Score

    36%Critical
    Interactive

    HTTPS

    WAF

    51d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    30.03.2026

    Valid Until

    28.06.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    cse.org.uk*.cse.org.uk

    SHA-256 Fingerprint

    29:DB:E5:74:18:B6:B6:B1:87:F8:F2:2E:EB:80:F5:B8:FB:4F:B1:61...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cf-cache-status
    DYNAMIC
    cf-ray
    9f831f6f387e1b5e-BOS
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=UTF-8
    date
    Thu, 07 May 2026 20:54:57 GMT
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    cse-org-uk.mail.protection.outlook.com

    Domain Information

    cse.org.uk

    DNSSEC
    Not Enabled

    Privacy & Compliance

    CookieYes

    Cookie Consent Banner
    CookieYes
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: CookieYes
    Data Protection Officer mentioned

    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.
    A
    81/100
    Mobile Friendly3 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=1.0
    1 recommendation
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Noto Sans

    WCAG AA
    81/100
    Readability
    /30
    25/30

    16px · LH 1.50

    Hierarchy
    /20
    17/20

    2.62x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    4.65:1 min contrast

    Performance
    /25
    20/25

    1 font · 1 req

    Heading Font

    Noto Sans

    Sans42px

    Body Font

    Noto Sans

    Sans16px

    Contrast Ratio

    4.65:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~35 CPL

    Narrow lines
    42px
    h1
    34px
    h2
    34px
    h3
    22px
    h4
    16px
    p

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

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 35/100. Simplify sentences for wider reach.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.7:1).

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

    ✅ Strong hierarchy: Headlines are 2.6x larger than body text.

    GGoogle FontsFlesch 35

    Color Palette

    14 unique colors
    Light
    #ffffff
    Background· 14.9%
    #f5f2e8
    Primary· 12.3%
    #e0e7f4
    Secondary· 9.7%
    #f5c74e
    Primary· 8.2%
    #1e0632
    Primary· 8%
    #e5c066
    Accent· 7.6%
    #d1d8e6
    Secondary· 6.8%
    #694842
    Secondary· 6.5%

    Business & Marketing Stack

    9 Tools Detected

    Enterprise

    Marketing Automation

    1
    MailchimpSMB

    Email marketing and automation platforms

    Behavior Analytics

    4
    Google Tag ManagerFree
    Google AnalyticsFree
    HotjarMid-Market
    Microsoft ClarityFree

    User behavior and product analytics

    Advertising

    2
    Google AdsEnterprise
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    Privacy & Cookies

    1
    CookieYesSMB

    Cookie consent and privacy compliance tools

    Social Media

    1
    Facebook SDKFree

    Social widgets and sharing tools

    5

    Categories

    9

    Total Tools

    1

    Enterprise

    2

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    26 Resources

    20
    Scripts
    6
    Styles
    11
    Async
    5
    Defer

    Top Script Sources

    cse.org.uk(7)googletagmanager.com(2)connect.facebook.net(2)cdn-cookieyes.com(2)static.hotjar.com(2)

    Website Identity

    Centre for Sustainable Energy

    Centre for Sustainable Energy

    Organization

    CSE supports people and organisations to tackle the climate emergency and end cold homes. Our free energy advice changes lives.

    [email protected]
    +441179341400
    www.cse.org.uk/

    St James Court, St James Parade, Bristol BS1 3LH

    Location detected: 🇬🇧 United Kingdomvia phone
    📧 Microsoft 365en-GB

    Social Profiles

    LinkedInYouTube

    Sponsored

    Last analyzed: 07 May 2026 at 20:55

    Historical Analysis & Change Tracking