Información Técnica
| Código de estado HTTP | 200 |
| Versión HTTP | HTTP/1.1 |
| HTTPS | ✔ Disponible |
| Dirección IP | 172.64.150.56 |
| Software del servidor | cloudflare |
| CDN | Cloudflare |
| Compresión | gzip |
|
ℹ 🔵 Falta X-Frame-Options | El sitio puede ser incrustado en iframes por terceros (riesgo de clickjacking). |
Código de estado HTTP 200
Versión HTTP HTTP/1.1
HTTPS ✔ Disponible
Dirección IP 172.64.150.56
Software del servidor cloudflare
CDN Cloudflare
Compresión gzip
ℹ 🔵 Falta X-Frame-Options El sitio puede ser incrustado en iframes por terceros (riesgo de clickjacking).
Cadena de Redirecciones
| # | URL | Código de estado HTTP | Estado |
| 1 | https://www.substack.com:443 | 301 | HTTP/2 301 |
| 2 | https://substack.com/ | 200 | HTTP/2 200 |
#1 URL https://www.substack.com:443
Código de estado HTTP 301
Estado HTTP/2 301
#2 URL https://substack.com/
Código de estado HTTP 200
Estado HTTP/2 200
Rendimiento
| Resolución DNS | 4.1 ms |
| Conexión TCP | 6.3 ms |
| Negociación TLS | 9.2 ms |
| Tiempo hasta el primer byte (TTFB) | 515 ms |
| Descarga de contenido | 0.9 ms |
| Tiempo total de respuesta | 516 ms |
Resolución DNS 4.1 ms
Conexión TCP 6.3 ms
Negociación TLS 9.2 ms
Tiempo hasta el primer byte (TTFB) 515 ms
Descarga de contenido 0.9 ms
Tiempo total de respuesta 516 ms
Seguridad
| HTTPS | ✔ Activado |
| HSTS | ✔ max-age=31536000; includeSubDomains; preload |
| CSP | ✔ Configurado |
| X-Frame-Options | ⚠ No configurado |
| X-Content-Type-Options | ⚠ No configurado |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Activado
HSTS ✔ max-age=31536000; includeSubDomains; preload
CSP ✔ Configurado
X-Frame-Options ⚠ No configurado
X-Content-Type-Options ⚠ No configurado
HTTP/2 ⚠ HTTP/1.1
Comprobación SEO
Tecnologías Detectadas
| Tecnología | Google Analytics Cloudflare Node.js |
Tecnología Google Analytics Cloudflare Node.js
Cabeceras HTTP
| Date
| Mon, 31 Aug 2026 12:48:07 GMT |
| Content-type
| text/html; charset=utf-8 |
| Cf-ray
| a33c25c9ea403d5d-CDG |
| Cf-cache-status
| DYNAMIC |
| Cache-control
| no-cache |
| Set-cookie
| __cf_bm=rmLE74drBqe3bG.1r3GEV0M6e1.IJdWvwZXWPx1jJec-1788180486.7042015-1.0.1.1-C5wZ4FLluzqu5cAm6W2CxyelYxBcEnUt91Utv29C8vDJ1x0dXWAPp_TX2POoU9JCbaxBvbVBr.tBAhB1hd7DEVCiDEn7bH1Szd1fPtQoPCzWtDUcL2T5LOrXMW_S9ulE; HttpOnly; SameSite=None; Secure; Path=/; Domain=substack.com; Expires=Mon, 31 Aug 2026 13:18:07 GMT |
| X-served-by
| Substack |
| Server
| cloudflare |
| X-service
| web |
| Strict-transport-security
| max-age=31536000; includeSubDomains; preload |
| Vary
| Accept-Encoding |
| Content-security-policy
| frame-ancestors 'self' https://*.substack.com https://substack.com |
| X-cluster
| substack |
| X-deploy
| 2dc1fdc32b |
| X-powered-by
| Express |
| Content-encoding
| gzip |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Norton-safeweb-site-verification | 24usqpep0ejc5w6hod3dulxwciwp0djs6c6ufp96av3t4whuxovj72wfkdjxu82yacb7430qjm8adbd5ezlt4592dq4zrvadcn9j9n-0btgdzpiojfzno16-fnsnu7xd |
| Theme-color | #16171d |
| Description | The app for independent voices |
| Viewport | width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0, viewport-fit=cover |
| Author | Substack |
Date Mon, 31 Aug 2026 12:48:07 GMT
Content-type text/html; charset=utf-8
Cf-ray a33c25c9ea403d5d-CDG
Cf-cache-status DYNAMIC
Cache-control no-cache
Set-cookie __cf_bm=rmLE74drBqe3bG.1r3GEV0M6e1.IJdWvwZXWPx1jJec-1788180486.7042015-1.0.1.1-C5wZ4FLluzqu5cAm6W2CxyelYxBcEnUt91Utv29C8vDJ1x0dXWAPp_TX2POoU9JCbaxBvbVBr.tBAhB1hd7DEVCiDEn7bH1Szd1fPtQoPCzWtDUcL2T5LOrXMW_S9ulE; HttpOnly; SameSite=None; Secure; Path=/; Domain=substack.com; Expires=Mon, 31 Aug 2026 13:18:07 GMT
X-served-by Substack
Server cloudflare
X-service web
Strict-transport-security max-age=31536000; includeSubDomains; preload
Vary Accept-Encoding
Content-security-policy frame-ancestors 'self' https://*.substack.com https://substack.com
X-cluster substack
X-deploy 2dc1fdc32b
X-powered-by Express
Content-encoding gzip
Alt-svc h3=":443"; ma=86400
