Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 104.18.35.66 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 104.18.35.66
Server Software cloudflare
CDN Cloudflare
Compression gzip
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://springsource.org:443 | 301 | HTTP/2 301 |
| 2 | http://spring.io | 301 | HTTP/1.1 301 Moved Permanently |
| 3 | https://spring.io/ | 200 | HTTP/2 200 |
#1 URL https://springsource.org:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL http://spring.io
HTTP Status Code 301
Status HTTP/1.1 301 Moved Permanently
#3 URL https://spring.io/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 4.1 ms |
| TCP Connect | 6.1 ms |
| TLS Handshake | 8.6 ms |
| Time To First Byte (TTFB) | 77.7 ms |
| Content Download | 3 ms |
| Total Response Time | 80.8 ms |
DNS Lookup 4.1 ms
TCP Connect 6.1 ms
TLS Handshake 8.6 ms
Time To First Byte (TTFB) 77.7 ms
Content Download 3 ms
Total Response Time 80.8 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=15552000; includeSubDomains |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ DENY |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | same-origin |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=15552000; includeSubDomains
CSP ⚠ Not configured
X-Frame-Options ✔ DENY
X-Content-Type-Options ✔ nosniff
Referrer Policy same-origin
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Meta Description | Level up your Java code and explore what Spring can do for you. |
| Canonical | https://spring.io/ |
| Open Graph Title | Home |
| Open Graph Description | Level up your Java code and explore what Spring can do for you. |
| Open Graph Image | https://spring.io/img/og-spring.png |
| Twitter Card | summary_large_image |
| Twitter Title | Home |
| Twitter Description | Level up your Java code and explore what Spring can do for you. |
| Twitter Image | https://spring.io/img/og-spring.png |
Meta Description Level up your Java code and explore what Spring can do for you. Canonical https://spring.io/ Open Graph Title Home Open Graph Description Level up your Java code and explore what Spring can do for you. Open Graph Image https://spring.io/img/og-spring.png Twitter Card summary_large_image Twitter Title Home Twitter Description Level up your Java code and explore what Spring can do for you. Twitter Image https://spring.io/img/og-spring.png Detected Technologies
| Technology | Google Analytics Google Tag Manager Cloudflare Apache Gatsby |
Technology Google Analytics Google Tag Manager Cloudflare Apache Gatsby
HTTP Headers
| Date
| Wed, 22 Jul 2026 19:32:21 GMT |
| Content-type
| text/html; charset=utf-8 |
| X-frame-options
| DENY |
| X-xss-protection
| 1; mode=block |
| Strict-transport-security
| max-age=15552000; includeSubDomains |
| Access-control-allow-origin
| * |
| Cache-control
| public, max-age=0, must-revalidate |
| X-content-type-options
| nosniff |
| Referrer-policy
| same-origin |
| Vary
| accept-encoding |
| Set-cookie
| __cf_bm=9RxVtggJdyK5a3yRycNRCc4w4q.uSfgBShF1tkr.LWM-1784748741.7563639-1.0.1.1-sXiyWWfB9ZqnuCCA7nugz4VNW0PT8G2XAyuXOmYV0D6gaFp4cQ7JBeSlyNpsyhgmx48ahj24fIslD0xDNEbsq5o_CCBQeuW6vzYk_FZYOXtsj4TcNgmSyW1ZFwrPb.wN; HttpOnly; SameSite=None; Secure; Path=/; Domain=spring.io; Expires=Wed, 22 Jul 2026 20:02:21 GMT |
| Server-timing
| cfEdge;dur=8,cfOrigin;dur=38 |
| Server
| cloudflare |
| Cf-cache-status
| DYNAMIC |
| Content-encoding
| gzip |
| Cf-ray
| a1f4def3fbaad10c-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| X-ua-compatible | ie=edge |
| Viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| Generator | Gatsby 5.13.7 |
| Description | Level up your Java code and explore what Spring can do for you. |
| Article:tag | ai |
| Theme-color | #6db33f |
Date Wed, 22 Jul 2026 19:32:21 GMT
Content-type text/html; charset=utf-8
X-frame-options DENY
X-xss-protection 1; mode=block
Strict-transport-security max-age=15552000; includeSubDomains
Access-control-allow-origin *
Cache-control public, max-age=0, must-revalidate
X-content-type-options nosniff
Referrer-policy same-origin
Vary accept-encoding
Set-cookie __cf_bm=9RxVtggJdyK5a3yRycNRCc4w4q.uSfgBShF1tkr.LWM-1784748741.7563639-1.0.1.1-sXiyWWfB9ZqnuCCA7nugz4VNW0PT8G2XAyuXOmYV0D6gaFp4cQ7JBeSlyNpsyhgmx48ahj24fIslD0xDNEbsq5o_CCBQeuW6vzYk_FZYOXtsj4TcNgmSyW1ZFwrPb.wN; HttpOnly; SameSite=None; Secure; Path=/; Domain=spring.io; Expires=Wed, 22 Jul 2026 20:02:21 GMT
Server-timing cfEdge;dur=8,cfOrigin;dur=38
Server cloudflare
Cf-cache-status DYNAMIC
Content-encoding gzip
Cf-ray a1f4def3fbaad10c-CDG
Alt-svc h3=":443"; ma=86400
