Información Técnica
| Código de estado HTTP | 200 |
| Versión HTTP | HTTP/1.1 |
| HTTPS | ✔ Disponible |
| Dirección IP | 216.176.183.104 |
| Compresión | gzip |
|
🔒 🟡 Mixed Content (29 recursos HTTP) | La página se sirve por HTTPS pero carga 29 recurso(s) por HTTP. Esto puede bloquearse en navegadores modernos. |
|
ℹ 🔵 Falta Content Security Policy | No se ha configurado CSP. Ayuda a prevenir ataques XSS e inyección de contenido. |
Código de estado HTTP 200
Versión HTTP HTTP/1.1
HTTPS ✔ Disponible
Dirección IP 216.176.183.104
Compresión gzip
🔒 🟡 Mixed Content (29 recursos HTTP) La página se sirve por HTTPS pero carga 29 recurso(s) por HTTP. Esto puede bloquearse en navegadores modernos.
ℹ 🔵 Falta Content Security Policy No se ha configurado CSP. Ayuda a prevenir ataques XSS e inyección de contenido.
Cadena de Redirecciones
| # | URL | Código de estado HTTP | Estado |
| 1 | https://spl.org:443 | 301 | HTTP/1.1 301 Moved Permanently |
| 2 | https://www.spl.org/ | 200 | HTTP/1.1 200 OK |
#1 URL https://spl.org:443
Código de estado HTTP 301
Estado HTTP/1.1 301 Moved Permanently
#2 URL https://www.spl.org/
Código de estado HTTP 200
Estado HTTP/1.1 200 OK
Rendimiento
| Resolución DNS | 28.6 ms |
| Conexión TCP | 172.7 ms |
| Negociación TLS | 150.1 ms |
| Tiempo hasta el primer byte (TTFB) | 611.1 ms |
| Descarga de contenido | 145.1 ms |
| Tiempo total de respuesta | 756.1 ms |
Resolución DNS 28.6 ms
Conexión TCP 172.7 ms
Negociación TLS 150.1 ms
Tiempo hasta el primer byte (TTFB) 611.1 ms
Descarga de contenido 145.1 ms
Tiempo total de respuesta 756.1 ms
Seguridad
| HTTPS | ✔ Activado |
| HSTS | ✔ max-age=31536000 |
| CSP | ⚠ No configurado |
| X-Frame-Options | ✔ sameorigin |
| X-Content-Type-Options | ✔ nosniff |
| Política de Referrer | strict-origin-when-cross-origin |
| Política de Permisos | ✔ Configurado |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Activado
HSTS ✔ max-age=31536000
CSP ⚠ No configurado
X-Frame-Options ✔ sameorigin
X-Content-Type-Options ✔ nosniff
Política de Referrer strict-origin-when-cross-origin
Política de Permisos ✔ Configurado
HTTP/2 ⚠ HTTP/1.1
Comprobación SEO
| Título | SPL - Home | The Seattle Public Library |
| Meta descripción | The Seattle Public Library gives you 24/7 free access to books, music, movies, TV shows, classes and more. |
| Título Open Graph | SPL - Home |
| Descripción Open Graph | The Seattle Public Library gives you 24/7 free access to books, music, movies, TV shows, classes and more. |
| Imagen Open Graph | https://www.spl.org//Seattle-Public-Library/images/Header... |
| Twitter Card | summary |
| Título Twitter | SPL - Home |
| Descripción Twitter | The Seattle Public Library gives you 24/7 free access to books, music, movies, TV shows, classes and more. |
Título SPL - Home | The Seattle Public Library Meta descripción The Seattle Public Library gives you 24/7 free access to books, music, movies, TV shows, classes and more. Título Open Graph SPL - Home Descripción Open Graph The Seattle Public Library gives you 24/7 free access to books, music, movies, TV shows, classes and more. Imagen Open Graph https://www.spl.org//Seattle-Public-Library/images/Header... Twitter Card summary Título Twitter SPL - Home Descripción Twitter The Seattle Public Library gives you 24/7 free access to books, music, movies, TV shows, classes and more. Tecnologías Detectadas
| Tecnología | Bootstrap jQuery Google Analytics Google Tag Manager |
Tecnología Bootstrap jQuery Google Analytics Google Tag Manager
Cabeceras HTTP
| Cache-Control
| no-cache |
| Pragma
| no-cache |
| Content-Type
| text/html; charset=utf-8 |
| Content-Encoding
| gzip |
| Expires
| -1 |
| Vary
| Accept-Encoding |
| Date
| Tue, 21 Jul 2026 18:05:35 GMT |
| Content-Length
| 22943 |
| X-Frame-Options
| sameorigin |
| X-Content-Type-Options
| nosniff |
| Strict-Transport-Security
| max-age=31536000 |
| Permissions-Policy
| camera=(), microphone=() |
| Referrer-Policy
| strict-origin-when-cross-origin |
Meta Tags
| Splx | x4 |
| Viewport | width=device-width, initial-scale=1.0 |
| Description | The Seattle Public Library gives you 24/7 free access to books, music, movies, TV shows, classes and more. |
| Keywords | SPL.org, Seattle Public Library homepage, homepage |
| Facebook-domain-verification | ayr6xx67jy1u6ooqj4hq4tz40j9jsj |
Cache-Control no-cache
Pragma no-cache
Content-Type text/html; charset=utf-8
Content-Encoding gzip
Expires -1
Vary Accept-Encoding
Date Tue, 21 Jul 2026 18:05:35 GMT
Content-Length 22943
X-Frame-Options sameorigin
X-Content-Type-Options nosniff
Strict-Transport-Security max-age=31536000
Permissions-Policy camera=(), microphone=()
Referrer-Policy strict-origin-when-cross-origin
