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ctbuh.org

https://ctbuh.org· First analyzed 30 Apr 2026· Updated 30 Apr 2026
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ctbuh.org
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Mobile

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Hosting Provider

Kinsta
cloudflare.com

IP Address

188.114.96.3

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

CloudFlare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

chloe.ns.cloudflare.com.aragorn.ns.cloudflare.com.

Performance

86

Core Web Vitals

Weight

First Contentful Paint
1.7 s10%
Speed Index
2.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
542 KB
205 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
MDS-Multiple-Themev1.0Custom
by Derek Dalton

Technology Stack

11 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Plugins

2
Cookie Notice
Yoast SEO

Libraries

1
jQueryv3.6.0

Other

1
GSAPv3.12.5

Other

1
Highcharts

UI Components

1
Slick Carousel

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

CDN

1
Cloudflare

SEO Analysis

A81/100
22
7
0
Meta Tags12/15
Content10/12
Headings8/8
Technical24/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
C
ctbuh.orgctbuh.org

Home - Council on Vertical Urbanism

We are shaping the future of rising cities and sharing the knowledge to build them. Together, we are building tall better.

Title Length35 chars

Recommended: 50-60 chars (~211px / 580px)

Description Length122 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    20 URLs

    20 sub-sitemaps

    robots.txt

    3 rules

    Sitemap reference found

    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

    D48/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    4/25
    Citation
    17/25

    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
    Text ratio:3%
    Words:1,356
    Token eff.:Optimal

    Structured Data

    3 JSON-LD
    WebSiteBreadcrumbListSearchAction

    Citation Readiness

    Opening Summary10w
    Descriptive Headingsavg 5.7w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    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
    71/100
    10
    Passed
    3
    Critical
    4
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    16/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    7/15
    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
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    2/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    58/100
    A
    55 mg
    CO₂e / view
    542.2 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    63 mg
    vs
    Returning (cached)
    31 mg
    Annual (10K/mo)
    6.6 kg
    Emission Segments
    Data Center
    3 mg
    Network
    16 mg
    Device
    36 mg
    Resource Breakdown
    JavaScript
    149.2 KB
    Images
    145.4 KB
    CSS
    193.0 KB
    Fonts
    989 B
    HTML
    53.4 KB
    Other
    301 B
    Green Hosting Verified
    Cloudflare
    GWF Verified
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    36%Critical
    Interactive

    HTTPS

    WAF

    46d

    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/2

    Valid From

    18.03.2026

    Valid Until

    16.06.2026

    Subject Alternative Names (2)

    *.verticalurbanism.orgverticalurbanism.org

    SHA-256 Fingerprint

    E2:29:C2:FF:1D:2A:96:A9:83:D5:88:BF:D4:65:96:99:D5:92:35:DB...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    4459
    cache-control
    🟡 0s(public, max-age=0, s-maxage=86400)
    cf-cache-status
    DYNAMIC
    cf-ray🇫🇷 Paris
    9f48bc839babd0be-CDG
    content-encoding
    zstd
    content-type
    text/html; charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    ctbuh-org.mail.protection.outlook.com

    Domain Information

    ctbuh.org

    Domain Age
    26y 11m

    Created

    28.05.1999

    Expires

    28.05.2027

    Last Updated

    28.04.2026

    Registrar

    Cloudflare, Inc.

    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
    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.
    B
    77/100
    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=1.0
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Inter

    WCAG Partial
    72/100
    Readability
    /30
    18/30

    16px · LH 1.26

    Hierarchy
    /20
    17/20

    3.5x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    1.41:1 min contrast

    Performance
    /25
    20/25

    1 font · 2 req

    Heading Font

    Inter

    Sans56px

    Body Font

    Inter

    Sans16px

    Contrast Ratio

    1.41:1

    9 issues

    Reading Comfort

    ~47 CPL

    Optimal (45–75)
    56px
    h1
    48px
    h2
    36px
    h3
    16px
    p

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

    ⚠️ Tight line spacing (1.26). Increase to 1.4–1.6 for better readability.

    ✅ Optimal line length: ~47 chars/line (ideal 45–75 CPL).

    ❌ Very complex text: Flesch score 17/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.4:1).

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

    GGoogle FontsFlesch 17

    Color Palette

    7 unique colors
    Dark
    #171717
    Text· 78.8%
    #749517
    Primary· 6.8%
    #030304
    Secondary· 4%
    #eceff0
    Secondary· 3.9%
    #9cad91
    Secondary· 2.5%
    #6b7456
    Secondary· 1.9%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    27 Resources

    20
    Scripts
    7
    Styles
    1
    Async
    2
    Defer

    Top Script Sources

    verticalurbanism.org(10)code.highcharts.com(3)cdn.jsdelivr.net(3)googletagmanager.com(1)code.jquery.com(1)

    Website Identity

    Home - Council on Vertical Urbanism

    We are shaping the future of rising cities and sharing the knowledge to build them. Together, we are building tall better.

    verticalurbanism.org/
    26 years old
    Location detected: 🇨🇦 Canadavia ip
    Cloudflare, Inc.📧 Microsoft 365en

    Sponsored

    Last analyzed: 30 Apr 2026 at 18:51

    Historical Analysis & Change Tracking