Información Técnica
| Código de estado HTTP | 200 |
| Versión HTTP | HTTP/1.1 |
| HTTPS | ✔ Disponible |
| Dirección IP | 104.18.39.224 |
| Software del servidor | cloudflare |
| CDN | Cloudflare |
| Compresión | gzip |
|
ℹ 🔵 Falta HSTS | No se ha configurado HTTP Strict Transport Security. Recomendado para sitios HTTPS. |
|
ℹ 🔵 Falta Content Security Policy | No se ha configurado CSP. Ayuda a prevenir ataques XSS e inyección de contenido. |
|
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 104.18.39.224
Software del servidor cloudflare
CDN Cloudflare
Compresión gzip
ℹ 🔵 Falta HSTS No se ha configurado HTTP Strict Transport Security. Recomendado para sitios HTTPS.
ℹ 🔵 Falta Content Security Policy No se ha configurado CSP. Ayuda a prevenir ataques XSS e inyección de contenido.
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://ebrary.com:443 | 301 | HTTP/2 301 |
| 2 | https://about.proquest.com/en/products-services/ebooks-main/ | 200 | HTTP/2 200 |
#1 URL https://ebrary.com:443
Código de estado HTTP 301
Estado HTTP/2 301
#2 URL https://about.proquest.com/en/products-services/ebooks-main/
Código de estado HTTP 200
Estado HTTP/2 200
Rendimiento
| Resolución DNS | 53.4 ms |
| Conexión TCP | 55.5 ms |
| Negociación TLS | 10.6 ms |
| Tiempo hasta el primer byte (TTFB) | 236.8 ms |
| Descarga de contenido | 167.2 ms |
| Tiempo total de respuesta | 404 ms |
Resolución DNS 53.4 ms
Conexión TCP 55.5 ms
Negociación TLS 10.6 ms
Tiempo hasta el primer byte (TTFB) 236.8 ms
Descarga de contenido 167.2 ms
Tiempo total de respuesta 404 ms
Seguridad
| HTTPS | ✔ Activado |
| HSTS | ✘ No configurado |
| CSP | ⚠ No configurado |
| X-Frame-Options | ⚠ No configurado |
| X-Content-Type-Options | ⚠ No configurado |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Activado
HSTS ✘ No configurado
CSP ⚠ No configurado
X-Frame-Options ⚠ No configurado
X-Content-Type-Options ⚠ No configurado
HTTP/2 ⚠ HTTP/1.1
Comprobación SEO
| Título | Ebook Central |
| Meta descripción | Ebook Central enables libraries to significantly improve users’ ebook research outcomes and boost the productivity of their staff. |
| Canonical | https://about.proquest.com/en/products-services/ebooks-main/ |
| Título Open Graph | Ebook Central |
| Descripción Open Graph | Ebook Central enables libraries to significantly improve users’ ebook research outcomes and boost the productivity of their staff. |
| Imagen Open Graph | https://about.proquest.com/globalassets/proquest/media/im... |
Título Ebook Central Meta descripción Ebook Central enables libraries to significantly improve users’ ebook research outcomes and boost the productivity of their staff. Canonical https://about.proquest.com/en/products-services/ebooks-main/ Título Open Graph Ebook Central Descripción Open Graph Ebook Central enables libraries to significantly improve users’ ebook research outcomes and boost the productivity of their staff. Imagen Open Graph https://about.proquest.com/globalassets/proquest/media/im... Tecnologías Detectadas
| Tecnología | jQuery Google Analytics Cloudflare Node.js |
Tecnología jQuery Google Analytics Cloudflare Node.js
Cabeceras HTTP
| Date
| Thu, 20 Aug 2026 04:05:05 GMT |
| Content-type
| text/html; charset=utf-8 |
| Server
| cloudflare |
| Cache-control
| no-cache,no-store |
| Expires
| -1 |
| Pragma
| no-cache |
| Set-cookie
| ARRAffinitySameSite=ef5a06415c9c4b4feb93e6ec5268b50ffdfbe64ab08be9bd54f8e937fcfd5361;Path=/;HttpOnly;SameSite=None;Secure;Domain=about.proquest.com |
| Request-context
| appId=cid-v1:79d237a6-fe58-4843-8595-2d3f7427f6d0 |
| Cf-cache-status
| DYNAMIC |
| Content-encoding
| gzip |
| Cf-ray
| a2de84835e3fd0ab-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| X-UA-Compatible | IE=edge |
| Viewport | width=device-width, initial-scale=1.0 |
| Description | Ebook Central enables libraries to significantly improve users’ ebook research outcomes and boost the productivity of their staff. |
| Keywords | ebooks, YBP, Discovery Partners, Coutts, third-party party technologies, DRM-free |
| Googlebot | noarchive |
| Google-site-verification | FWNeqHLHSSNFUtJw-3TtCXOR98_j6dMDuHJFo097RTw |
| Facebook-verification | w10c8vslhbk5vbmlg6wcyq1iwziucg |
| Msvalidate.01 | B54EC5676FB4AB75038E53E1B4842433 |
Date Thu, 20 Aug 2026 04:05:05 GMT
Content-type text/html; charset=utf-8
Server cloudflare
Cache-control no-cache,no-store
Expires -1
Pragma no-cache
Set-cookie ARRAffinitySameSite=ef5a06415c9c4b4feb93e6ec5268b50ffdfbe64ab08be9bd54f8e937fcfd5361;Path=/;HttpOnly;SameSite=None;Secure;Domain=about.proquest.com
Request-context appId=cid-v1:79d237a6-fe58-4843-8595-2d3f7427f6d0
Cf-cache-status DYNAMIC
Content-encoding gzip
Cf-ray a2de84835e3fd0ab-CDG
Alt-svc h3=":443"; ma=86400
