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rssb.co.uk

https://rssb.co.uk· First analyzed 20 May 2026· Updated 20 May 2026
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rssb.co.uk
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Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

15.197.225.128

Site Location

🇬🇧 United Kingdomvia tld

Server Location

🇨🇦 Montreal, Canada

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

CDN

CDN

Nameservers

pdns03.domaincontrol.com.pdns04.domaincontrol.com.

Performance

94

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
6.2 MB
49 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Sitecore

Technology Stack

7 Technologies Detected

Analytics

3
Google Analytics
Hotjar
Segment

CSS Frameworks

2
Tailwind CSS
Bootstrap

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

SEO Analysis

C68/100
19
8
0
Meta Tags7/15
Content11/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
R
rssb.co.ukrssb.co.uk

RSSB

The Rail Safety and Standards Board (RSSB) is the independent safety, standards, and research body for Great Britain’s rail network. We help to make an evolv...

Description truncated.
Title Length4 chars

Recommended: 50-60 chars (~24px / 580px)

Description Length213 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    25,932 URLs

    robots.txt

    4 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    15/100
    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
    20/25
    Machine Read.
    13/25
    Schema Data
    2/25
    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:4%
    Words:778
    Token eff.:Optimal
    Sections/1K:16.7
    Depth:2/5

    Structured Data

    1 JSON-LD
    WebSite

    Citation Readiness

    Opening Summary26w
    Descriptive Headingsavg 5.7w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    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
    80/100
    12
    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
    9/15
    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.
    2 recommendations
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    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.
    26/100
    F
    638 mg
    CO₂e / view
    6.2 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    729 mg
    vs
    Returning (cached)
    364 mg
    Annual (10K/mo)
    76.5 kg
    Emission Segments
    Data Center
    31 mg
    Network
    187 mg
    Device
    419 mg
    Resource Breakdown
    JavaScript
    2.6 MB
    Images
    1.9 MB
    CSS
    1.5 MB
    HTML
    93.2 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    9 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    291d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    GoDaddy.com, Inc.

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    03.02.2026

    Valid Until

    07.03.2027

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.rssb.co.ukrssb.co.uk

    SHA-256 Fingerprint

    82:36:BE:25:E5:38:B3:2C:0D:F6:F2:F1:F0:85:2E:D5:2D:91:40:95...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ch
    Sec-CH-UA-Full-Version-List,Sec-CH-UA-Platform-Version,Sec-C...
    accept-ranges
    bytes
    cache-control
    🔴 No Cache(no-cache, no-store)
    content-length
    95105
    content-type
    text/html; charset=utf-8
    date
    Wed, 20 May 2026 00:14:02 GMT
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    rssb-co-uk.mail.protection.outlook.com

    Domain Information

    rssb.co.uk

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    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
    68/100
    Mobile Friendly27 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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Roboto

    WCAG Partial
    79/100
    Readability
    /30
    23/30

    18px · LH 1.56

    Hierarchy
    /20
    17/20

    4.44x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    2.51:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    Roboto

    Sans80px

    Body Font

    Roboto

    Sans18px

    Contrast Ratio

    2.51:1

    2 issues

    Reading Comfort

    ~40 CPL

    Narrow lines
    80px
    h1
    36px
    h2
    28px
    h3
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

    ❌ Very complex text: Flesch score 9/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 2.5:1).

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

    ✅ Strong hierarchy: Headlines are 4.4x larger than body text.

    Flesch 9

    Color Palette

    9 unique colors
    5.94:1 AA Light
    #ffffff
    Background· 21%
    #69635a
    Secondary· 8.3%
    #2c2710
    Primary· 26.1%
    #433f28
    Secondary· 18%
    #18180a
    Secondary· 7.7%
    #415259
    Secondary· 5.4%
    #4e4e40
    Secondary· 2.9%

    Business & Marketing Stack

    3 Tools Detected

    Growing

    Behavior Analytics

    3
    Google Tag ManagerFree
    HotjarMid-Market
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    25 Resources

    19
    Scripts
    6
    Styles
    3
    Async
    2
    Defer

    Top Script Sources

    local(9)static.searchstax.com(3)youraccount.videomarketingplatform.co(2)static.hotjar.com(1)googletagmanager.com(1)

    Website Identity

    Rail Safety and Standards Board

    www.rssb.co.uk/
    Location detected: 🇬🇧 United Kingdomvia tld
    📧 Microsoft 365en

    Sponsored

    Last analyzed: 20 May 2026 at 00:14

    Historical Analysis & Change Tracking