Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 23.185.0.3 |
| Server Software | nginx |
| CDN | CDN (HIT, HIT, MISS, MISS) |
| Compression | gzip |
|
🔒 🟡 Mixed Content (1 HTTP resources) | The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 23.185.0.3
Server Software nginx
CDN CDN (HIT, HIT, MISS, MISS)
Compression gzip
🔒 🟡 Mixed Content (1 HTTP resources) The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers.
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://cncf.io:443 | 301 | HTTP/2 301 |
| 2 | https://www.cncf.io/ | 200 | HTTP/2 200 |
#1 URL https://cncf.io:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.cncf.io/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 216.9 ms |
| TCP Connect | 218 ms |
| TLS Handshake | 4.4 ms |
| Time To First Byte (TTFB) | 229.1 ms |
| Content Download | 1.9 ms |
| Total Response Time | 231 ms |
DNS Lookup 216.9 ms
TCP Connect 218 ms
TLS Handshake 4.4 ms
Time To First Byte (TTFB) 229.1 ms
Content Download 1.9 ms
Total Response Time 231 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31622400; includeSubDomains; preload |
| CSP | ✔ Configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31622400; includeSubDomains; preload
CSP ✔ Configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Cloud Native Computing Foundation |
| Meta Description | CNCF is the vendor-neutral hub of cloud native computing, dedicated to making cloud native ubiquitous. |
| Canonical | https://www.cncf.io/ |
| Robots Meta | max-snippet:-1,max-image-preview:standard,max-video-preview:-1 |
| Open Graph Title | Cloud Native Computing Foundation |
| Open Graph Description | CNCF is the vendor-neutral hub of cloud native computing, dedicated to making cloud native ubiquitous. |
| Open Graph Image | https://www.cncf.io/wp-content/uploads/2022/05/cncf_socia... |
| Twitter Card | summary_large_image |
| Twitter Title | Cloud Native Computing Foundation |
| Twitter Description | CNCF is the vendor-neutral hub of cloud native computing, dedicated to making cloud native ubiquitous. |
| Twitter Image | https://www.cncf.io/wp-content/uploads/2022/05/cncf_socia... |
Title Cloud Native Computing Foundation Meta Description CNCF is the vendor-neutral hub of cloud native computing, dedicated to making cloud native ubiquitous. Canonical https://www.cncf.io/ Robots Meta max-snippet:-1,max-image-preview:standard,max-video-preview:-1 Open Graph Title Cloud Native Computing Foundation Open Graph Description CNCF is the vendor-neutral hub of cloud native computing, dedicated to making cloud native ubiquitous. Open Graph Image https://www.cncf.io/wp-content/uploads/2022/05/cncf_socia... Twitter Card summary_large_image Twitter Title Cloud Native Computing Foundation Twitter Description CNCF is the vendor-neutral hub of cloud native computing, dedicated to making cloud native ubiquitous. Twitter Image https://www.cncf.io/wp-content/uploads/2022/05/cncf_socia... Detected Technologies
| Technology | WordPress jQuery Google Analytics Google Tag Manager Nginx PHP HubSpot |
Technology WordPress jQuery Google Analytics Google Tag Manager Nginx PHP HubSpot
HTTP Headers
| Cache-control
| public, max-age=60, s-maxage=43200, stale-while-revalidate=86400, stale-if-error=604800 |
| Content-encoding
| gzip |
| Content-security-policy
| frame-ancestors 'self'; |
| Content-type
| text/html; charset=UTF-8 |
| Link
| ; rel=shortlink |
| Server
| nginx |
| Strict-transport-security
| max-age=31622400; includeSubDomains; preload |
| X-frame-options
| SAMEORIGIN |
| X-pantheon-styx-hostname
| styx-us-a-55f5b7b84b-bsg82 |
| X-styx-req-id
| 88ad1a0a-9c18-11f1-83da-863d69ea3adb |
| Age
| 3734 |
| Accept-ranges
| bytes |
| Via
| 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish |
| Date
| Wed, 19 Aug 2026 22:56:36 GMT |
| X-served-by
| cache-chi-kigq8000073-CHI, cache-par-lfpb1150052-PAR, cache-par-lfpg1960090-PAR, cache-par-lfpg1960090-PAR |
| X-cache
| HIT, HIT, MISS, MISS |
| X-cache-hits
| 16, 18, 0, 0 |
| X-timer
| S1787180197.558805,VS0,VE5 |
| Vary
| Accept-Encoding, Cookie, Cookie |
| Content-length
| 55328 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Robots | max-snippet:-1,max-image-preview:standard,max-video-preview:-1 |
| Description | CNCF is the vendor-neutral hub of cloud native computing, dedicated to making cloud native ubiquitous. |
| Referrer | strict-origin-when-cross-origin |
| Theme-color | #000000 |
| X-UA-Compatible | IE=edge |
Cache-control public, max-age=60, s-maxage=43200, stale-while-revalidate=86400, stale-if-error=604800
Content-encoding gzip
Content-security-policy frame-ancestors 'self';
Content-type text/html; charset=UTF-8
Link ; rel=shortlink
Server nginx
Strict-transport-security max-age=31622400; includeSubDomains; preload
X-frame-options SAMEORIGIN
X-pantheon-styx-hostname styx-us-a-55f5b7b84b-bsg82
X-styx-req-id 88ad1a0a-9c18-11f1-83da-863d69ea3adb
Age 3734
Accept-ranges bytes
Via 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish
Date Wed, 19 Aug 2026 22:56:36 GMT
X-served-by cache-chi-kigq8000073-CHI, cache-par-lfpb1150052-PAR, cache-par-lfpg1960090-PAR, cache-par-lfpg1960090-PAR
X-cache HIT, HIT, MISS, MISS
X-cache-hits 16, 18, 0, 0
X-timer S1787180197.558805,VS0,VE5
Vary Accept-Encoding, Cookie, Cookie
Content-length 55328
