Back to Search
cesium.com favicon

cesium.com

https://cesium.com· First analyzed 02 May 2026· Updated 02 May 2026
Export
cesium.com
Desktop screenshot of cesium.com
Mobile screenshot of cesium.com
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

13.33.235.29

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 New York, United States

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

AmazonS3

CDN

CloudFront

Nameservers

ns-1860.awsdns-40.co.uk.ns-227.awsdns-28.com.ns-977.awsdns-58.net.ns-1209.awsdns-23.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
454 ms10%
Speed Index
590 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
13.6 MB
53 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

JAMstack
⚡ SSG
Decoupled
Frontend
Framework
Next.js
API
Data Source
Headless CMS
Prismic
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Detected API Sources

https://images.prismic.io/cesi...https://images.prismic.io/cesi...

Technology Stack

6 Technologies Detected

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Marketing

1
HubSpot

SEO Analysis

C66/100
18
8
0
Meta Tags10/15
Content10/12
Headings8/8
Technical13/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
C
cesium.comcesium.com

Cesium: The Platform for 3D Geospatial

The Cesium platform provides the foundations any software application needs to utilize 3D geospatial data: visualization, data pipelines, curated data, and a...

Description truncated.
Title Length38 chars

Recommended: 50-60 chars (~233px / 580px)

Description Length344 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    2 rules

    Local SEO

    Local Search Readiness

    8/100
    Poor
    3 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

    D41/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    0/25
    Citation
    10/25

    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:1%
    Words:1,009
    Token eff.:Optimal
    Sections/1K:7.9
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary12w
    Descriptive Headingsavg 2.9w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    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.
    A
    82/100
    13
    Passed
    2
    Critical
    1
    Warnings
    Images & Alt Text
    18/20
    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
    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
    13/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    9/15
    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.
    34/100
    F
    1.40 g
    CO₂e / view
    13.6 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    1.60 g
    vs
    Returning (cached)
    801 mg
    Annual (10K/mo)
    168.2 kg
    Emission Segments
    Data Center
    69 mg
    Network
    412 mg
    Device
    921 mg
    Resource Breakdown
    JavaScript
    360.1 KB
    Images
    776.4 KB
    CSS
    66.5 KB
    HTML
    128.0 KB
    Other
    12.3 MB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    26%Critical
    Interactive

    HTTPS

    WAF

    206d

    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+H3

    Valid From

    26.10.2025

    Valid Until

    24.11.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    cesium.comwww.cesium.com

    SHA-256 Fingerprint

    7B:77:65:29:10:FC:43:97:FC:07:46:B1:21:3E:24:22:3E:DE:AF:26...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    1239
    alt-svc
    h3=":443"; ma=86400
    cache-control
    🟡 1800s(public, max-age=1800)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html
    date
    Sat, 02 May 2026 19:32:57 GMT
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    cesium-com.mail.protection.outlook.com

    Domain Information

    cesium.com

    Domain Age
    30y 9m

    Created

    11.08.1995

    Expires

    10.08.2032

    Last Updated

    15.07.2025

    Registrar

    MarkMonitor Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    CookieLaw

    Cookie Consent Banner
    CookieLaw
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: CookieLaw
    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
    62/100
    Mobile Friendly
    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
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Roboto + Sarabun

    WCAG Partial
    81/100
    Readability
    /30
    25/30

    19px · LH 1.50

    Hierarchy
    /20
    18/20

    2.63x ratio · ✓ H1→H6

    WCAG
    /25
    18/25

    1:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    Roboto

    Sans50px

    Body Font

    Sarabun

    Sans19px

    Contrast Ratio

    1:1

    6 issues

    Reading Comfort

    ~33 CPL

    Narrow lines
    50px
    h1
    40px
    h2
    30px
    h3
    19px
    p

    ✅ Excellent readability: 19px body text is ideal for all devices.

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

    ❌ Very complex text: Flesch score 22/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 1.0:1).

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

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

    Fluid Type (rem)Flesch 22

    Color Palette

    9 unique colors
    Light
    #0e1422
    Primary· 56.800000000000004%
    #d8dc80
    Primary· 9%
    #46668f
    Secondary· 6.5%
    #27395e
    Secondary· 6.2%
    #1c263a
    Secondary· 5.3%
    #394c6c
    Secondary· 5.1%
    #687c8d
    Secondary· 5.1%
    #020711
    Primary· 4%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    OneTrustEnterprise

    Cookie consent and privacy compliance tools

    2

    Categories

    3

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    21 Resources

    20
    Scripts
    1
    Styles
    3
    Async
    15
    Defer

    Top Script Sources

    local(17)cdn.userway.org(1)cdn.cookielaw.org(1)googletagmanager.com(1)

    Website Identity

    cesium.com

    [email protected]
    30 years old
    Location detected: 🇺🇸 United Statesvia ip
    MarkMonitor Inc.📧 Microsoft 365en-US

    Sponsored

    Last analyzed: 02 May 2026 at 19:47

    Historical Analysis & Change Tracking

    cesium.com Technology Stack - Built With Next.js, Tailwind CSS, Font Awesome, Google Analytics, Google Tag Manager | StackOptic | StackOptic