Información Técnica
| Código de estado HTTP | 200 |
| Versión HTTP | HTTP/1.1 |
| HTTPS | ✔ Disponible |
| Dirección IP | 52.222.201.55 |
| Software del servidor | envoy |
| CDN | CDN (Miss from cloudfront) |
| Compresión | gzip |
|
🔒 🟡 Mixed Content (1 recursos HTTP) | La página se sirve por HTTPS pero carga 1 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 52.222.201.55
Software del servidor envoy
CDN CDN (Miss from cloudfront)
Compresión gzip
🔒 🟡 Mixed Content (1 recursos HTTP) La página se sirve por HTTPS pero carga 1 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.
Rendimiento
| Resolución DNS | 1.9 ms |
| Conexión TCP | 3 ms |
| Negociación TLS | 4.3 ms |
| Tiempo hasta el primer byte (TTFB) | 314.4 ms |
| Descarga de contenido | 22.4 ms |
| Tiempo total de respuesta | 336.8 ms |
Resolución DNS 1.9 ms
Conexión TCP 3 ms
Negociación TLS 4.3 ms
Tiempo hasta el primer byte (TTFB) 314.4 ms
Descarga de contenido 22.4 ms
Tiempo total de respuesta 336.8 ms
Seguridad
| HTTPS | ✔ Activado |
| HSTS | ✔ max-age=31536000; includeSubDomains; preload |
| CSP | ⚠ No configurado |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Activado
HSTS ✔ max-age=31536000; includeSubDomains; preload
CSP ⚠ No configurado
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
HTTP/2 ⚠ HTTP/1.1
Comprobación SEO
| Meta descripción | Learn in-demand skills with online courses and Professional Certificates from leading companies like Google, IBM, Meta, and Adobe. Explore flexible programs—from short courses to full degrees. |
| Canonical | https://www.coursera.org |
| Título Open Graph | Coursera | Courses, Professional Certificates, and Degrees Online |
| Descripción Open Graph | Learn in-demand skills with online courses and Professional Certificates from leading companies like Google, IBM, Meta, and Adobe. Explore flexible programs—from short courses to full degrees. |
| Imagen Open Graph | https://s3.amazonaws.com/coursera/media/Grid_Coursera_Par... |
| Twitter Card | summary |
| Título Twitter | Coursera | Courses, Professional Certificates, and Degrees Online |
| Descripción Twitter | Learn in-demand skills with online courses and Professional Certificates from leading companies like Google, IBM, Meta, and Adobe. Explore flexible programs—from short courses to full degrees. |
| Imagen Twitter | https://s3.amazonaws.com/coursera/media/Grid_Coursera_Par... |
Meta descripción Learn in-demand skills with online courses and Professional Certificates from leading companies like Google, IBM, Meta, and Adobe. Explore flexible programs—from short courses to full degrees. Canonical https://www.coursera.org Título Open Graph Coursera | Courses, Professional Certificates, and Degrees Online Descripción Open Graph Learn in-demand skills with online courses and Professional Certificates from leading companies like Google, IBM, Meta, and Adobe. Explore flexible programs—from short courses to full degrees. Imagen Open Graph https://s3.amazonaws.com/coursera/media/Grid_Coursera_Par... Twitter Card summary Título Twitter Coursera | Courses, Professional Certificates, and Degrees Online Descripción Twitter Learn in-demand skills with online courses and Professional Certificates from leading companies like Google, IBM, Meta, and Adobe. Explore flexible programs—from short courses to full degrees. Imagen Twitter https://s3.amazonaws.com/coursera/media/Grid_Coursera_Par... Tecnologías Detectadas
| Tecnología | Google Analytics Node.js |
Tecnología Google Analytics Node.js
Cabeceras HTTP
| Content-type
| text/html |
| Cache-control
| private, no-cache, no-store, must-revalidate, max-age=0 |
| Content-encoding
| gzip |
| Date
| Sun, 26 Jul 2026 17:29:57 GMT |
| Etag
| W/"c37d1-/r0p7hrdE9ge3PiQeo5x3zgSgsI" |
| Server
| envoy |
| Set-cookie
| __204u=3749645304-1785086997039; Max-Age=31536000; Expires=Mon, 26 Jul 2027 17:29:57 GMT; Path=/; Domain=.coursera.org |
| Strict-transport-security
| max-age=31536000; includeSubDomains; preload |
| Traceresponse
| 00-033966627b421a3bb8af5728b3783e10-387a0606712dd200-00 |
| Vary
| Accept-Encoding |
| X-content-type-options
| nosniff |
| X-coursera-appname
| front-page |
| X-coursera-render-mode
| html |
| X-coursera-render-version
| v2 |
| X-coursera-request-id
| nwVlSIkXEfGNtBKcosdPSw |
| X-coursera-trace-id-hex
| 9c7a022abce385fc |
| X-envoy-decorator-operation
| egress |
| X-envoy-upstream-service-time
| 210 |
| X-frame-options
| SAMEORIGIN |
| X-powered-by
| Express |
| X-xss-protection
| 1; mode=block |
| X-cache
| Miss from cloudfront |
| Via
| 1.1 7aef920ed20c713960127526fa3a88f4.cloudfront.net (CloudFront) |
| X-amz-cf-pop
| CDG50-P2 |
| X-amz-cf-id
| FeK405Iv3guqYl2RnAdyggv2lwD4PLfdtT3hH4mu7oNfMJkVGS-fNg== |
Meta Tags
| X-UA-Compatible | IE=Edge,chrome=IE7 |
| Fb:admins | 727836538,4807654 |
| Fb:app_id | 823425307723964 |
| Viewport | width=device-width, initial-scale=1 |
| Msapplication-TileColor | #2d89ef |
| Msapplication-TileImage |  |
| Theme-color | #0056D2 |
| Qc:admins | 366737676376375235216727 |
| Yandex-verification | 4970cfdb825622c7 |
| Description | Learn in-demand skills with online courses and Professional Certificates from leading companies like Google, IBM, Meta, and Adobe. Explore flexible programs—from short courses to full degrees. |
| Image |  |
Content-type text/html
Cache-control private, no-cache, no-store, must-revalidate, max-age=0
Content-encoding gzip
Date Sun, 26 Jul 2026 17:29:57 GMT
Etag W/"c37d1-/r0p7hrdE9ge3PiQeo5x3zgSgsI"
Server envoy
Set-cookie __204u=3749645304-1785086997039; Max-Age=31536000; Expires=Mon, 26 Jul 2027 17:29:57 GMT; Path=/; Domain=.coursera.org
Strict-transport-security max-age=31536000; includeSubDomains; preload
Traceresponse 00-033966627b421a3bb8af5728b3783e10-387a0606712dd200-00
Vary Accept-Encoding
X-content-type-options nosniff
X-coursera-appname front-page
X-coursera-render-mode html
X-coursera-render-version v2
X-coursera-request-id nwVlSIkXEfGNtBKcosdPSw
X-coursera-trace-id-hex 9c7a022abce385fc
X-envoy-decorator-operation egress
X-envoy-upstream-service-time 210
X-frame-options SAMEORIGIN
X-powered-by Express
X-xss-protection 1; mode=block
X-cache Miss from cloudfront
Via 1.1 7aef920ed20c713960127526fa3a88f4.cloudfront.net (CloudFront)
X-amz-cf-pop CDG50-P2
X-amz-cf-id FeK405Iv3guqYl2RnAdyggv2lwD4PLfdtT3hH4mu7oNfMJkVGS-fNg==
