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calatrava.com

https://calatrava.com· First analyzed 06 May 2026· Updated 06 May 2026
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calatrava.com
Desktop screenshot of calatrava.com
Mobile screenshot of calatrava.com
Mobile

Sponsored

Hosting Provider

cyon GmbH

IP Address

149.126.4.33

Site Location

🇨🇭 Switzerlandvia ip

Server Location

🇨🇭 Basel, Switzerland

ASN

AS47302

Nameservers

ns2.cyon.ch.ns1.cyon.ch.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
658 ms10%
Speed Index
855 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
387 KB
23 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
cyon GmbH

Technology Stack

4 Technologies Detected

Analytics

2
Google Analytics
Segment

Libraries

1
jQueryv3.6.0

Fonts

1
Google Fonts

SEO Analysis

B72/100
21
6
0
Meta Tags15/15
Content7/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness2/4
Mobile4/4
Indexability3/3
C
calatrava.comcalatrava.com

Home - Santiago Calatrava – Architects & Engineers

Santiago Calatrava Valls is a Spanish/Swiss architect, structural engineer, sculptor and painter. He has offices in New York City, Dubai, and Zürich.

Title Length50 chars

Recommended: 50-60 chars (~304px / 580px)

Description Length149 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    232 URLs

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    8/100
    Poor
    2 13 2

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

    Sponsored

    AI & LLM Readiness

    F35/100
    Bot Access
    20/25
    Machine Read.
    5/25
    Schema Data
    3/25
    Citation
    7/25

    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:5%
    Words:69
    Token eff.:Too Short
    Sections/1K:30
    Depth:2/5

    Structured Data

    1 JSON-LD
    Article×1.2microdata

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 7w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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
    11
    Passed
    2
    Critical
    0
    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
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    1/15
    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.
    69/100
    A+
    39 mg
    CO₂e / view
    387.1 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    45 mg
    vs
    Returning (cached)
    22 mg
    Annual (10K/mo)
    4.7 kg
    Emission Segments
    Data Center
    2 mg
    Network
    12 mg
    Device
    26 mg
    Resource Breakdown
    JavaScript
    32.3 KB
    Images
    12.3 KB
    CSS
    336.6 KB
    Fonts
    1.9 KB
    HTML
    3.9 KB
    Green Hosting Verified
    cyon
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    90%Excellent
    Static / Informational

    HTTPS

    No WAF

    58d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    05.04.2026

    Valid Until

    04.07.2026

    Subject Alternative Names (6)

    calatrava.chcalatrava.comcalatrava.euwww.calatrava.chwww.calatrava.comwww.calatrava.eu

    SHA-256 Fingerprint

    CC:6B:5D:60:92:BD:12:52:4E:32:AC:1A:13:F6:BD:5A:8D:31:B6:D5...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    0
    alt-svc
    h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...
    cache-control
    🔴 No Cache(must-revalidate, no-cache, no-store, private)
    contao-cache
    miss
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Mimecast

    Score

    70

    SPF
    DKIM
    DMARC

    MX Records (2)

    eu-smtp-inbound-1.mimecast.com
    eu-smtp-inbound-2.mimecast.com

    Domain Information

    calatrava.com

    Domain Age
    27y 3m

    Created

    29.01.1999

    Expires

    29.01.2027

    Last Updated

    29.01.2026

    Registrar

    1API GmbH

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    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.
    D
    52/100
    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, maximum-scale=1.0, user-scalable=0
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    AvenirLTStd-Light + Open Sans

    WCAG Partial
    52/100
    Readability
    /30
    10/30

    13px · LH 1.10

    Hierarchy
    /20
    12/20

    1.08x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    1:1 min contrast

    Performance
    /25
    13/25

    2 fonts · 2 req

    Heading Font

    AvenirLTStd-Light

    Sans14px

    Body Font

    Open Sans

    Sans13px

    Contrast Ratio

    1:1

    25 issues

    Reading Comfort

    Dual Sans-Serif

    left aligned
    14px
    h1
    14px
    h2
    13px
    p
    Minor Second
    Scale

    ❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

    ⚠️ Tight line spacing (1.10). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 25 elements below WCAG AA threshold (min 1.0:1).

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

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

    GGoogle FontsBuy on MyFontsFlesch 0

    Color Palette

    13 unique colors
    5.3:1 AA Light
    #ffffff
    Text· 14.500000000000002%
    #786864
    Secondary· 12.9%
    #1b1619
    Primary· 11.6%
    #a4acbb
    Secondary· 8.1%
    #264071
    Secondary· 7.9%
    #1a315b
    Accent· 6.9%
    #445d8d
    Secondary· 6.9%
    #392e38
    Secondary· 6.4%

    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

    7 Resources

    4
    Scripts
    3
    Styles
    1
    Async
    0
    Defer

    Top Script Sources

    assets(2)google-analytics.com(1)code.jquery.com(1)

    Website Identity

    calatrava.com

    27 years old
    Location detected: 🇨🇭 Switzerlandvia ip
    1API GmbH📧 Mimecasten

    Sponsored

    Last analyzed: 06 May 2026 at 22:50

    Historical Analysis & Change Tracking