cmake.org
CMake - Upgrade Your Software Build System
Last scanned Jul 26, 2026, 5:17 AM · 2 views
Overall score
Great
Summary
CMake is a powerful and comprehensive solution for managing the software build process. This website uses WordPress hosted on LVLT-3549 - Level 3 Parent, LLC, US. SEO is good (75/100) and accessibility is excellent (90/100). Security scores good (85/100) and performance good (85/100). Top issue: Meta description longer than 160 characters.
CMake is a powerful and comprehensive solution for managing the software build process. CMake is the de-facto standard for building C++ code, with over 2 million downloads a month.
- United States
- Hosted on LVLT-3549 - Level 3 Parent, LLC, US
Top issues to fix
5 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
SEO
3 issue(s) found
Performance
252 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
CMake is a powerful and comprehensive solution for managing the software build process. CMake is the de-facto standard for building C++ code, with over 2 million downloads a month.
Contact
Email, phone, and address published on this site's own pages.
Source: https://cmake.org/contact-us/
Meta tags
- Title
- CMake - Upgrade Your Software Build System
- Description
- CMake is a powerful and comprehensive solution for managing the software build process. CMake is the de-facto standard for building C++ code, with over 2 million downloads a month.
- Canonical
- https://cmake.org/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- LVLT-3549 - Level 3 Parent, LLC, US
- CDN provider
- —
- IP address
- 66.194.253.25
- ASN
- AS3549 (LVLT-3549 - Level 3 Parent, LLC, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- cmake.org
- Valid from
- Jun 18, 2026
- Valid to
- Sep 16, 2026
- Days until expiry
- 52
- SAN domains
- cmake.org, www.cmake.org
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 5 · H3 0
Links
19 internal · 13 external · 0 broken
Images
19 total · 0 missing alt
Scripts / Styles
24 scripts · 2 stylesheets
JS / CSS size
1.3 MB · 288 KB
Page size
67.7 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 42
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- Meta description longer than 160 characters
- No H1 heading found
- No structured data (JSON-LD) found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://cmake.org
- Final URL
- https://cmake.org
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 251 ms
- HTML size
- 67.7 KB
- Redirect chain
- https://cmake.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does cmake.org use?
- cmake.org is built with WordPress, jQuery, Google Analytics, Apache.
- Is cmake.org secure (HTTPS)?
- Yes. cmake.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 16, 2026.
- Who hosts cmake.org?
- cmake.org is hosted on LVLT-3549 - Level 3 Parent, LLC, US.
- What is cmake.org's SEO score?
- cmake.org scored 75/100 for SEO in the latest analysis (fair).
- What is cmake.org's overall website score?
- cmake.org has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card