cncf.io
Cloud Native Computing Foundation
Last scanned Jul 26, 2026, 5:17 AM · 2 views
Overall score
Excellent
Summary
CNCF is the vendor-neutral hub of cloud native computing, dedicated to making cloud native ubiquitous. This website uses WordPress hosted on Fastly behind Fastly CDN. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores excellent (95/100) and performance excellent (100/100). Top issue: sitemap.xml not found.
CNCF is the vendor-neutral hub of cloud native computing, dedicated to making cloud native ubiquitous.
- United States
- Hosted on Fastly
Top issues to fix
2 issues found
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
SEO
1 issue(s) found
Performance
17 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- info@cncf.io
- Phone
- +1-415-723-9709
Meta tags
- Title
- Cloud Native Computing Foundation
- Description
- CNCF is the vendor-neutral hub of cloud native computing, dedicated to making cloud native ubiquitous.
- Canonical
- https://www.cncf.io/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- max-snippet:-1,max-image-preview:standard,max-video-preview:-1
- Manifest
- https://www.cncf.io/wp-content/themes/cncf-twenty-two/images/manifest.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- cncf.io
- Valid from
- May 31, 2026
- Valid to
- Aug 29, 2026
- Days until expiry
- 33
- SAN domains
- cncf.io, www.cncf.io
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 7 · H3 8
Links
143 internal · 33 external · 0 broken
Images
208 total · 0 missing alt
Scripts / Styles
26 scripts · 2 stylesheets
JS / CSS size
448 KB · 161 KB
Page size
204 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 1
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://cncf.io
- Final URL
- https://www.cncf.io/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 13 ms
- HTML size
- 204 KB
- Redirect chain
- https://cncf.io → https://www.cncf.io/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does cncf.io use?
- cncf.io is built with WordPress, jQuery, Nginx.
- Is cncf.io secure (HTTPS)?
- Yes. cncf.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 29, 2026.
- Who hosts cncf.io?
- cncf.io is hosted on Fastly, behind Fastly CDN.
- What is cncf.io's SEO score?
- cncf.io scored 95/100 for SEO in the latest analysis (excellent).
- What is cncf.io's overall website score?
- cncf.io has an overall SiteGraph score of 97/100, combining SEO, performance, security, and accessibility.
- Is cncf.io hiring?
- cncf.io has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card