Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 104.21.11.126 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
ℹ 🔵 Missing HSTS | HTTP Strict Transport Security is not configured. Recommended for HTTPS sites. |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
|
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 104.21.11.126
Server Software cloudflare
CDN Cloudflare
Compression gzip
ℹ 🔵 Missing HSTS HTTP Strict Transport Security is not configured. Recommended for HTTPS sites.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
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://sphinx-doc.org:443 | 301 | HTTP/2 301 |
| 2 | https://www.sphinx-doc.org/ | 302 | HTTP/2 302 |
| 3 | https://www.sphinx-doc.org/en/master/ | 200 | HTTP/2 200 |
#1 URL https://sphinx-doc.org:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.sphinx-doc.org/
HTTP Status Code 302
Status HTTP/2 302
#3 URL https://www.sphinx-doc.org/en/master/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 1.9 ms |
| TCP Connect | 3.1 ms |
| TLS Handshake | 7.5 ms |
| Time To First Byte (TTFB) | 52.2 ms |
| Content Download | 0.2 ms |
| Total Response Time | 52.4 ms |
DNS Lookup 1.9 ms
TCP Connect 3.1 ms
TLS Handshake 7.5 ms
Time To First Byte (TTFB) 52.2 ms
Content Download 0.2 ms
Total Response Time 52.4 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | no-referrer-when-downgrade |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ✔ nosniff
Referrer Policy no-referrer-when-downgrade
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Sphinx — Sphinx documentation |
| Canonical | https://www.sphinx-doc.org/en/master/index.html |
Title Sphinx — Sphinx documentation
Canonical https://www.sphinx-doc.org/en/master/index.html
Detected Technologies
| Technology | Google Analytics Cloudflare Nginx |
Technology Google Analytics Cloudflare Nginx
HTTP Headers
| Date
| Tue, 21 Jul 2026 03:19:07 GMT |
| Content-type
| text/html; charset=utf-8 |
| X-rtd-version-method
| path |
| X-served
| Nginx-Proxito-Sendfile |
| Set-cookie
| __cf_bm=tUi6Hq0jDUHgJJrv6rXnm3nrVO_03YAsVRFjHi1CFRc-1784603947.1631627-1.0.1.1-HtB2j3afILDY.Vpn8VXpNLnp_JE4_HsKHHpcl_FOSg277JXhvXlvyypekX.f9UGrAgaOpmRERoPZmOzwbUD3V8LQZc4j_lRmmDnA07d0JMZLCYGHDerFoMNiihR7yAh3; HttpOnly; SameSite=None; Secure; Path=/; Domain=www.sphinx-doc.org; Expires=Tue, 21 Jul 2026 03:49:07 GMT |
| Cf-cache-status
| DYNAMIC |
| Access-control-allow-origin
| * |
| Age
| 1295 |
| Cache-control
| max-age=1800, stale-if-error=86400, public |
| Report-to
| {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=k%2FKSf2VZzBsIBaSNtxbfFvGRxZz%2Ft2Df9cIY5A48OahzoJ4P%2BrmmiAlTGIpO5iTbDI5zXmS2VxwOGBwy09e96eAgdauckBEHZPLXofLZfVtgcRqE2Z%2F3DYJw%2B9tQyIeiGPo2i0miEvaiBMaAyDmMJw4%3D"}]} |
| Expires
| Tue, 21 Jul 2026 03:49:07 GMT |
| Last-modified
| Tue, 09 Jun 2026 12:07:38 GMT |
| Server
| cloudflare |
| Vary
| Accept-Encoding |
| Access-control-allow-methods
| HEAD, OPTIONS, GET |
| Cdn-cache-control
| public, max-age=1800, stale-if-error=86400 |
| Cross-origin-opener-policy
| same-origin |
| Referrer-policy
| no-referrer-when-downgrade |
| X-amz-id-2
| DJqBy9ZHd5Ri4FZpi2wQkkeBfVhLjLBxAm4LTtZskZAv48+I2nGTSuBjV6//m7qjhJv6pqkdNQMAbRtdsX5M8qJu/dhI19Td |
| X-amz-meta-mtime
| 1781006806.378363044 |
| X-amz-request-id
| PJZNFEWQ7SK0C39C |
| X-amz-server-side-encryption
| AES256 |
| X-backend
| web-i-074c441c9f08228d6 |
| X-content-type-options
| nosniff |
| X-rtd-domain
| www.sphinx-doc.org |
| X-rtd-force-addons
| true |
| X-rtd-path
| /proxito/html/sphinx/master/index.html |
| X-rtd-project
| sphinx |
| X-rtd-project-method
| custom_domain |
| X-rtd-resolver-filename
| / |
| X-rtd-version
| master |
| Nel
| {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} |
| Content-encoding
| gzip |
| Cf-ray
| a1e70fedab400475-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Readthedocs-project-slug | sphinx |
| Readthedocs-version-slug | master |
| Readthedocs-resolver-filename | / |
| Readthedocs-http-status | 200 |
Date Tue, 21 Jul 2026 03:19:07 GMT
Content-type text/html; charset=utf-8
X-rtd-version-method path
X-served Nginx-Proxito-Sendfile
Set-cookie __cf_bm=tUi6Hq0jDUHgJJrv6rXnm3nrVO_03YAsVRFjHi1CFRc-1784603947.1631627-1.0.1.1-HtB2j3afILDY.Vpn8VXpNLnp_JE4_HsKHHpcl_FOSg277JXhvXlvyypekX.f9UGrAgaOpmRERoPZmOzwbUD3V8LQZc4j_lRmmDnA07d0JMZLCYGHDerFoMNiihR7yAh3; HttpOnly; SameSite=None; Secure; Path=/; Domain=www.sphinx-doc.org; Expires=Tue, 21 Jul 2026 03:49:07 GMT
Cf-cache-status DYNAMIC
Access-control-allow-origin *
Age 1295
Cache-control max-age=1800, stale-if-error=86400, public
Report-to {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=k%2FKSf2VZzBsIBaSNtxbfFvGRxZz%2Ft2Df9cIY5A48OahzoJ4P%2BrmmiAlTGIpO5iTbDI5zXmS2VxwOGBwy09e96eAgdauckBEHZPLXofLZfVtgcRqE2Z%2F3DYJw%2B9tQyIeiGPo2i0miEvaiBMaAyDmMJw4%3D"}]}
Expires Tue, 21 Jul 2026 03:49:07 GMT
Last-modified Tue, 09 Jun 2026 12:07:38 GMT
Server cloudflare
Vary Accept-Encoding
Access-control-allow-methods HEAD, OPTIONS, GET
Cdn-cache-control public, max-age=1800, stale-if-error=86400
Cross-origin-opener-policy same-origin
Referrer-policy no-referrer-when-downgrade
X-amz-id-2 DJqBy9ZHd5Ri4FZpi2wQkkeBfVhLjLBxAm4LTtZskZAv48+I2nGTSuBjV6//m7qjhJv6pqkdNQMAbRtdsX5M8qJu/dhI19Td
X-amz-meta-mtime 1781006806.378363044
X-amz-request-id PJZNFEWQ7SK0C39C
X-amz-server-side-encryption AES256
X-backend web-i-074c441c9f08228d6
X-content-type-options nosniff
X-rtd-domain www.sphinx-doc.org
X-rtd-force-addons true
X-rtd-path /proxito/html/sphinx/master/index.html
X-rtd-project sphinx
X-rtd-project-method custom_domain
X-rtd-resolver-filename /
X-rtd-version master
Nel {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Content-encoding gzip
Cf-ray a1e70fedab400475-CDG
Alt-svc h3=":443"; ma=86400
