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SGSiteGraph

cesium.com

Cesium: The Platform for 3D Geospatial

Last scanned Jul 26, 2026, 12:49 PM

78

Overall score

Fair

Summary

This website uses Next.js behind CloudFront CDN. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Missing meta description.

Top issues to fix

10 issues found · 3 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

+4 more issues — details in the sections below.

65

SEO

5 issue(s) found

90

Performance

220 ms

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
Cesium: The Platform for 3D Geospatial
Description
Canonical
Language
en-US
Charset
utf-8
Viewport
width=device-width
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Cesium: The Platform for 3D Geospatial
og:description
The Cesium platform provides the foundations any software application needs to utilize 3D geospatial data: visualization, data pipelines, curated data, and analytics. Based on open standards for data formats, open APIs for customization and integration, and built with an open source core, Cesium is open, interoperable, and incredibly precise.
og:type
website
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
CDN provider
CloudFront
IP address
ASN

DNS records

TypeValue
A
AAAA
MX
TXT
NS
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Amazon
Subject
cesium.com
Valid from
Oct 26, 2025
Valid to
Nov 24, 2026
Days until expiry
119
SAN domains
cesium.com, www.cesium.com

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 1 · H3 8

Links

21 internal · 6 external · 20 broken

Images

9 total · 1 missing alt

Scripts / Styles

16 scripts · 1 stylesheets

JS / CSS size

600 KB · 59.6 KB

Page size

754 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing meta description
  • Missing canonical link
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://cesium.com
Final URL
https://cesium.com
HTTP status
200
HTTP version
HTTP/2
Response time
205 ms
HTML size
754 KB
Redirect chain
https://cesium.com

See something wrong on this report? Request a correction

Frequently asked questions

What technology does cesium.com use?
cesium.com is built with React, Next.js.
Is cesium.com secure (HTTPS)?
Yes. cesium.com uses TLS 1.3 with a certificate issued by Amazon, valid until Nov 24, 2026.
Who hosts cesium.com?
Hosting provider information for cesium.com is not available yet.
What is cesium.com's SEO score?
cesium.com scored 65/100 for SEO in the latest analysis (fair).
What is cesium.com's overall website score?
cesium.com has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.