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sadlerswells.com

https://sadlerswells.com· First analyzed 01 May 2026· Updated 01 May 2026
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sadlerswells.com
Desktop screenshot of sadlerswells.com
Mobile screenshot of sadlerswells.com
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

13.227.192.23

Site Location

🇨🇿 Czech Republicvia ip

Server Location

🇨🇿 Prague, Czechia

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

Heroku

CDN

CloudFront

Nameservers

ns101.digicertdns.com.ns102.digicertdns.com.ns2.dnsimple-edge.net.ns3.dnsimple.com.+3 more

Performance

97

Core Web Vitals

Weight

First Contentful Paint
976 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.5 MB
107 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

11 Technologies Detected

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

Analytics

2
Google Analytics
Facebook Pixel

Libraries

1
jQueryv3.3.1

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Advertising

1
Google Ads

Other

1
VWO

Platforms

1
Heroku

SEO Analysis

C64/100
19
8
0
Meta Tags8/15
Content11/12
Headings3/8
Technical19/25
E-E-A-T0/7
Images5/7
Links2/5
URL5/5
Social5/5
Freshness0/4
Mobile3/4
Indexability3/3
S
sadlerswells.comsadlerswells.com

Welcome to Sadler’s Wells

We strive to make and share dance that inspires us all. As one of the world's leading dance organisations, we're dedicated to dance in all its forms and invi...

Description truncated.
Title Length25 chars

Recommended: 50-60 chars (~154px / 580px)

Description Length198 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    3 URLs

    3 sub-sitemaps

    robots.txt

    4 rules

    Local SEO

    Local Search Readiness

    13/100
    Poor
    4 12 2

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

    Sponsored

    AI & LLM Readiness

    D45/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    0/25
    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
    navheader/footer
    Text ratio:3%
    Words:624
    Token eff.:Optimal
    Sections/1K:24
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary66w
    Descriptive Headingsavg 5.3w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    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.
    B
    77/100
    11
    Passed
    4
    Critical
    1
    Warnings
    Images & Alt Text
    13/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    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
    13/15
    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...
    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.
    51/100
    C
    156 mg
    CO₂e / view
    1.5 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    178 mg
    vs
    Returning (cached)
    89 mg
    Annual (10K/mo)
    18.7 kg
    Emission Segments
    Data Center
    8 mg
    Network
    46 mg
    Device
    103 mg
    Resource Breakdown
    JavaScript
    414.6 KB
    Images
    1.8 KB
    CSS
    1021.2 KB
    HTML
    103.2 KB
    Other
    3.7 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    71%Good
    Static / Informational

    HTTPS

    No WAF

    146d

    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

    11.03.2026

    Valid Until

    24.09.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    sadlerswells.com*.sadlerswells.com

    SHA-256 Fingerprint

    4B:FB:CB:B2:01:20:63:58:29:12:18:22:BC:49:A3:33:DC:6B:FC:4C...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    185
    content-type
    text/html; charset=UTF-8
    date
    Fri, 01 May 2026 08:23:39 GMT
    link
    <https://www.sadlerswells.com/wp-json/>; rel="https://api.w....
    nel
    {"report_to":"heroku-nel","response_headers":["Via"],"max_ag...
    report-to
    {"group":"heroku-nel","endpoints":[{"url":"https://nel.herok...
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    sadlerswells-com.mail.protection.outlook.com

    Domain Information

    sadlerswells.com

    Domain Age
    26y 4m

    Created

    09.12.1999

    Expires

    09.12.2026

    Last Updated

    04.12.2025

    Registrar

    1API GmbH

    DNSSEC
    Not Enabled

    Privacy & Compliance

    OneTrust

    Cookie Consent Banner
    OneTrust
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: OneTrust

    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
    78/100
    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

    Typography & Readability

    aktiv-grotesk

    WCAG Partial
    63/100
    Readability
    /30
    18/30

    14px · LH 1.50

    Hierarchy
    /20
    15/20

    3.98x ratio

    WCAG
    /25
    17/25

    4.32:1 min contrast

    Performance
    /25
    13/25

    1 font · 4 req

    Heading Font

    aktiv-grotesk

    Sans54px

    Body Font

    aktiv-grotesk

    Sans14px

    Contrast Ratio

    4.32:1

    3 issues

    Reading Comfort

    ~43 CPL

    Narrow lines
    54px
    h1
    37px
    h3
    14px
    p

    ❌ Critical: 14px body text is too small. Minimum 14px, recommend 16px+.

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

    ⚠️ Hard to read: Flesch score 43/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 4.3:1).

    ❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

    ✅ Strong hierarchy: Headlines are 4.0x larger than body text.

    AAdobe FontsBuy on MyFontsFlesch 43

    Color Palette

    8 unique colors
    16.43:1 AAA Dark
    #1f1f23
    Text· 36.1%
    #ffffff
    Primary· 7.7%
    #080506
    Secondary· 30.599999999999998%
    #724e3e
    Secondary· 8.6%
    #4b3d39
    Secondary· 5.8%
    #402a22
    Secondary· 5.3%
    #3c1516
    Secondary· 2%

    Business & Marketing Stack

    5 Tools Detected

    Enterprise

    Behavior Analytics

    2
    Google Tag ManagerFree
    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

    A/B Testing & Optimization

    1
    VWO (Visual Website Optimizer)Mid-Market

    Experimentation and conversion optimization

    4

    Categories

    5

    Total Tools

    0

    Enterprise

    2

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    24 Resources

    20
    Scripts
    4
    Styles
    20
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(17)connect.facebook.net(2)cdn.by.wonderpush.com(1)

    Website Identity

    sadlerswells.com

    26 years old
    Location detected: 🇨🇿 Czech Republicvia ip
    1API GmbH📧 Microsoft 365en-GB

    Sponsored

    Last analyzed: 01 May 2026 at 08:27

    Historical Analysis & Change Tracking