Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 104.207.153.241 |
| Server Software | nginx/1.30.3 |
| Compression | gzip |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 104.207.153.241
Server Software nginx/1.30.3
Compression gzip
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://sivers.org:443 | 301 | HTTP/2 301 |
| 2 | https://sive.rs/ | 200 | HTTP/2 200 |
#1 URL https://sivers.org:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://sive.rs/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 103.4 ms |
| TCP Connect | 241.3 ms |
| TLS Handshake | 146.1 ms |
| Time To First Byte (TTFB) | 525.6 ms |
| Content Download | 0.1 ms |
| Total Response Time | 525.7 ms |
DNS Lookup 103.4 ms
TCP Connect 241.3 ms
TLS Handshake 146.1 ms
Time To First Byte (TTFB) 525.6 ms
Content Download 0.1 ms
Total Response Time 525.7 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31536000 |
| CSP | ✔ Configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | strict-origin |
| Permissions Policy | ✔ Configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31536000
CSP ✔ Configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ✔ nosniff
Referrer Policy strict-origin
Permissions Policy ✔ Configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Derek Sivers |
| Meta Description | Derek Sivers official site. Thoughts on philosophy, culture, self-improvement. Author of Useful Not True, How to Live, Hell Yeah or No, Anything You Want. |
| Canonical | https://sive.rs/ |
| Open Graph Title | Derek Sivers |
| Open Graph Description | Derek Sivers official site. Thoughts on philosophy, culture, self-improvement. Author of Useful Not True, How to Live, Hell Yeah or No, Anything You Want. |
| Open Graph Image | https://m.sive.rs/og.jpg |
Title Derek Sivers Meta Description Derek Sivers official site. Thoughts on philosophy, culture, self-improvement. Author of Useful Not True, How to Live, Hell Yeah or No, Anything You Want. Canonical https://sive.rs/ Open Graph Title Derek Sivers Open Graph Description Derek Sivers official site. Thoughts on philosophy, culture, self-improvement. Author of Useful Not True, How to Live, Hell Yeah or No, Anything You Want. Open Graph Image https://m.sive.rs/og.jpg Detected Technologies
| Technology | Google Analytics Nginx Stripe |
Technology Google Analytics Nginx Stripe
HTTP Headers
| Server
| nginx/1.30.3 |
| Date
| Thu, 23 Jul 2026 13:49:55 GMT |
| Content-type
| text/html; charset=utf-8 |
| Last-modified
| Wed, 22 Jul 2026 19:05:10 GMT |
| Vary
| Accept-Encoding |
| Etag
| W/"6a611466-345d" |
| Strict-transport-security
| max-age=31536000 |
| Referrer-policy
| strict-origin |
| Permissions-policy
| camera=(), microphone=(), geolocation=() |
| X-xss-protection
| 1; mode=block |
| X-content-type-options
| nosniff |
| X-permitted-cross-domain-policies
| master-only |
| Content-security-policy
| default-src 'self'; font-src https://m.sive.rs; script-src 'self' 'unsafe-inline' 'wasm-unsafe-eval' https://js.stripe.com; worker-src 'self' blob:; img-src 'self' data: https://m.sive.rs https://m.nownownow.com; style-src 'self' 'unsafe-inline'; connect-src 'self' https://*.b-cdn.net; media-src 'self' blob: https://m.sive.rs https://*.b-cdn.net; frame-src https://js.stripe.com; frame-ancestors 'self'; object-src 'none' |
| Cross-origin-resource-policy
| cross-origin |
| Cross-origin-opener-policy
| cross-origin |
| Content-encoding
| gzip |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Description | Derek Sivers official site. Thoughts on philosophy, culture, self-improvement. Author of Useful Not True, How to Live, Hell Yeah or No, Anything You Want. |
| Author | Derek Sivers |
Server nginx/1.30.3
Date Thu, 23 Jul 2026 13:49:55 GMT
Content-type text/html; charset=utf-8
Last-modified Wed, 22 Jul 2026 19:05:10 GMT
Vary Accept-Encoding
Etag W/"6a611466-345d"
Strict-transport-security max-age=31536000
Referrer-policy strict-origin
Permissions-policy camera=(), microphone=(), geolocation=()
X-xss-protection 1; mode=block
X-content-type-options nosniff
X-permitted-cross-domain-policies master-only
Content-security-policy default-src 'self'; font-src https://m.sive.rs; script-src 'self' 'unsafe-inline' 'wasm-unsafe-eval' https://js.stripe.com; worker-src 'self' blob:; img-src 'self' data: https://m.sive.rs https://m.nownownow.com; style-src 'self' 'unsafe-inline'; connect-src 'self' https://*.b-cdn.net; media-src 'self' blob: https://m.sive.rs https://*.b-cdn.net; frame-src https://js.stripe.com; frame-ancestors 'self'; object-src 'none'
Cross-origin-resource-policy cross-origin
Cross-origin-opener-policy cross-origin
Content-encoding gzip
