Información Técnica
| Código de estado HTTP | 200 |
| Versión HTTP | HTTP/1.1 |
| HTTPS | ✔ Disponible |
| Dirección IP | 52.222.201.100 |
| Software del servidor | Apache/2.4.58 (Ubuntu) |
| CDN | CDN (Hit from cloudfront) |
| Compresión | gzip |
|
🔒 🟡 Mixed Content (2 recursos HTTP) | La página se sirve por HTTPS pero carga 2 recurso(s) por HTTP. Esto puede bloquearse en navegadores modernos. |
Código de estado HTTP 200
Versión HTTP HTTP/1.1
HTTPS ✔ Disponible
Dirección IP 52.222.201.100
Software del servidor Apache/2.4.58 (Ubuntu)
CDN CDN (Hit from cloudfront)
Compresión gzip
🔒 🟡 Mixed Content (2 recursos HTTP) La página se sirve por HTTPS pero carga 2 recurso(s) por HTTP. Esto puede bloquearse en navegadores modernos.
Rendimiento
| Resolución DNS | 24.3 ms |
| Conexión TCP | 25.4 ms |
| Negociación TLS | 7 ms |
| Tiempo hasta el primer byte (TTFB) | 40.5 ms |
| Descarga de contenido | 0.4 ms |
| Tiempo total de respuesta | 40.9 ms |
Resolución DNS 24.3 ms
Conexión TCP 25.4 ms
Negociación TLS 7 ms
Tiempo hasta el primer byte (TTFB) 40.5 ms
Descarga de contenido 0.4 ms
Tiempo total de respuesta 40.9 ms
Seguridad
| HTTPS | ✔ Activado |
| HSTS | ✔ max-age=63072000; includeSubDomains; preload |
| CSP | ✔ 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=63072000; includeSubDomains; preload
CSP ✔ 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 | California Digital Library |
| Meta descripción | The California Digital Library exists to support the University of California community’s pursuit of scholarship and to extend the University’s public service mission. |
| Canonical | https://cdlib.org/ |
| Robots Meta | max-image-preview:large |
Título California Digital Library
Meta descripción The California Digital Library exists to support the University of California community’s pursuit of scholarship and to extend the University’s public service mission.
Canonical https://cdlib.org/
Robots Meta max-image-preview:large
Tecnologías Detectadas
| Tecnología | WordPress jQuery Google Analytics Cloudflare Apache PHP Matomo |
Tecnología WordPress jQuery Google Analytics Cloudflare Apache PHP Matomo
Cabeceras HTTP
| Content-type
| text/html; charset=UTF-8 |
| Content-length
| 15902 |
| Date
| Tue, 18 Aug 2026 23:08:40 GMT |
| Content-encoding
| gzip |
| Set-cookie
| AWSALBCORS=GOtzxTIny+zzCtFPqoA8/HMnwHtFZRfgzV2sJy0sTJiyo2XfCAXAMhExF+XtuaGB61oh7ex7C3beOXmbdr/zVfmwK0TxoEkfx3NSeXJgGxVXBYnZzkSCGNES0pk8; Expires=Tue, 25 Aug 2026 23:08:39 GMT; Path=/; SameSite=None; Secure |
| Server
| Apache/2.4.58 (Ubuntu) |
| X-content-type-options
| nosniff |
| X-frame-options
| SAMEORIGIN |
| Strict-transport-security
| max-age=63072000; includeSubDomains; preload |
| Referrer-policy
| strict-origin-when-cross-origin |
| Cross-origin-resource-policy
| same-origin |
| Cross-origin-opener-policy
| same-origin |
| Permissions-policy
| camera=(), geolocation=(), microphone=() |
| Content-security-policy
| object-src 'none'; script-src 'nonce-E8KrNjzQ1eWimOR0lxRvu0' 'unsafe-inline' 'strict-dynamic' https: http:; base-uri 'none' |
| Link
| ; rel=shortlink |
| Vary
| Accept-Encoding |
| X-cache
| Hit from cloudfront |
| Via
| 1.1 8e20810f1edd66323991c4412691bb48.cloudfront.net (CloudFront) |
| X-amz-cf-pop
| CDG50-P2 |
| X-amz-cf-id
| Y1U1etVHjnGirY6b4m0jCXOmPpwWdMMI-74XSdaMj-fuvYXuuqaIIQ== |
| Age
| 122482 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Description | The California Digital Library exists to support the University of California community’s pursuit of scholarship and to extend the University’s public service mission. |
| Robots | max-image-preview:large |
| Msapplication-TileImage |  |
Content-type text/html; charset=UTF-8
Content-length 15902
Date Tue, 18 Aug 2026 23:08:40 GMT
Content-encoding gzip
Set-cookie AWSALBCORS=GOtzxTIny+zzCtFPqoA8/HMnwHtFZRfgzV2sJy0sTJiyo2XfCAXAMhExF+XtuaGB61oh7ex7C3beOXmbdr/zVfmwK0TxoEkfx3NSeXJgGxVXBYnZzkSCGNES0pk8; Expires=Tue, 25 Aug 2026 23:08:39 GMT; Path=/; SameSite=None; Secure
Server Apache/2.4.58 (Ubuntu)
X-content-type-options nosniff
X-frame-options SAMEORIGIN
Strict-transport-security max-age=63072000; includeSubDomains; preload
Referrer-policy strict-origin-when-cross-origin
Cross-origin-resource-policy same-origin
Cross-origin-opener-policy same-origin
Permissions-policy camera=(), geolocation=(), microphone=()
Content-security-policy object-src 'none'; script-src 'nonce-E8KrNjzQ1eWimOR0lxRvu0' 'unsafe-inline' 'strict-dynamic' https: http:; base-uri 'none'
Link ; rel=shortlink
Vary Accept-Encoding
X-cache Hit from cloudfront
Via 1.1 8e20810f1edd66323991c4412691bb48.cloudfront.net (CloudFront)
X-amz-cf-pop CDG50-P2
X-amz-cf-id Y1U1etVHjnGirY6b4m0jCXOmPpwWdMMI-74XSdaMj-fuvYXuuqaIIQ==
Age 122482
