Información Técnica
| Código de estado HTTP | 200 |
| Versión HTTP | HTTP/1.1 |
| HTTPS | ✔ Disponible |
| Dirección IP | 192.124.249.113 |
| Software del servidor | Sucuri/Cloudproxy |
| 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. |
|
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 192.124.249.113
Software del servidor Sucuri/Cloudproxy
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.
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://nngroup.com:443 | 301 | HTTP/2 301 |
| 2 | https://www.nngroup.com/ | 200 | HTTP/2 200 |
#1 URL https://nngroup.com:443
Código de estado HTTP 301
Estado HTTP/2 301
#2 URL https://www.nngroup.com/
Código de estado HTTP 200
Estado HTTP/2 200
Rendimiento
| Resolución DNS | 29.9 ms |
| Conexión TCP | 31.4 ms |
| Negociación TLS | 15.6 ms |
| Tiempo hasta el primer byte (TTFB) | 458 ms |
| Descarga de contenido | 1.6 ms |
| Tiempo total de respuesta | 459.5 ms |
Resolución DNS 29.9 ms
Conexión TCP 31.4 ms
Negociación TLS 15.6 ms
Tiempo hasta el primer byte (TTFB) 458 ms
Descarga de contenido 1.6 ms
Tiempo total de respuesta 459.5 ms
Seguridad
| HTTPS | ✔ Activado |
| HSTS | ✔ max-age=63072000; includeSubDomains; preload |
| CSP | ⚠ No configurado |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| Política de Referrer | strict-origin-when-cross-origin |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Activado
HSTS ✔ max-age=63072000; includeSubDomains; preload
CSP ⚠ No configurado
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
Política de Referrer strict-origin-when-cross-origin
HTTP/2 ⚠ HTTP/1.1
Comprobación SEO
| Título | Nielsen Norman Group: UX Training, Consulting, & Research - NN/G |
| Meta descripción | A leader in the user experience field, NN/g conducts groundbreaking research, trains and certifies UX practitioners, and provides UX consulting to clients. |
| Título Open Graph | Nielsen Norman Group: UX Training, Consulting, & Research |
| Descripción Open Graph | A leader in the user experience field, NN/g conducts groundbreaking research, trains and certifies UX practitioners, and provides UX consulting to clients. |
| Imagen Open Graph | https://media.nngroup.com/media/metadata/opengraph_images... |
Título Nielsen Norman Group: UX Training, Consulting, & Research - NN/G Meta descripción A leader in the user experience field, NN/g conducts groundbreaking research, trains and certifies UX practitioners, and provides UX consulting to clients. Título Open Graph Nielsen Norman Group: UX Training, Consulting, & Research Descripción Open Graph A leader in the user experience field, NN/g conducts groundbreaking research, trains and certifies UX practitioners, and provides UX consulting to clients. Imagen Open Graph https://media.nngroup.com/media/metadata/opengraph_images... Tecnologías Detectadas
| Tecnología | Google Analytics Google Tag Manager |
Tecnología Google Analytics Google Tag Manager
Cabeceras HTTP
| Date
| Tue, 21 Jul 2026 06:34:57 GMT |
| Content-type
| text/html; charset=utf-8 |
| Content-length
| 32867 |
| X-sucuri-id
| 19012 |
| Age
| 5263 |
| Cache-control
| max-age=14400 |
| Content-encoding
| gzip |
| Content-security-policy-report-only
| font-src 'self' https://s3.amazonaws.com/media.nngroup.com/ https://media.nngroup.com; default-src 'self'; img-src 'self' https://s3.amazonaws.com/media.nngroup.com/ https://media.nngroup.com; connect-src 'self'; style-src 'self' https://s3.amazonaws.com/media.nngroup.com/ https://media.nngroup.com; script-src 'self' https://s3.amazonaws.com/media.nngroup.com/ https://media.nngroup.com |
| Cross-origin-opener-policy
| same-origin |
| Expires
| Tue, 21 Jul 2026 09:07:14 GMT |
| Nel
| {"report_to":"heroku-nel","response_headers":["Via"],"max_age":3600,"success_fraction":0.01,"failure_fraction":0.1} |
| Referrer-policy
| strict-origin-when-cross-origin |
| Report-to
| {"group":"heroku-nel","endpoints":[{"url":"https://nel.heroku.com/reports?s=%2F935dSTYptljaBCrLc2jvFylMKfnuXw1A2vXDM3dfjI%3D\u0026sid=929419e7-33ea-4e2f-85f0-7d8b7cd5cbd6\u0026ts=1784615696"}],"max_age":3600} |
| Reporting-endpoints
| heroku-nel="https://nel.heroku.com/reports?s=%2F935dSTYptljaBCrLc2jvFylMKfnuXw1A2vXDM3dfjI%3D&sid=929419e7-33ea-4e2f-85f0-7d8b7cd5cbd6&ts=1784615696" |
| Strict-transport-security
| max-age=63072000; includeSubDomains; preload |
| Vary
| Cookie, Accept-Encoding |
| Via
| 1.1 heroku-router |
| X-content-type-options
| nosniff |
| X-frame-options
| SAMEORIGIN |
| Server
| Sucuri/Cloudproxy |
| X-sucuri-cache
| MISS |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| Description | A leader in the user experience field, NN/g conducts groundbreaking research, trains and certifies UX practitioners, and provides UX consulting to clients. |
| Keywords | Jakob Nielsen, Don Norman, Donald A. Norman, Bruce Tognazzini, Tog, usability consulting, usability consultant, UX consulting, UX consultant, usability training, user experience, user-centered design, UCD, human factors, Web guru, design gurus, process improvement, NNG, nngroup |
| Google-site-verification | l0IUeb5igyeFisldPra8f_Qt0z2WGy8cobau_DRiJUs |
Date Tue, 21 Jul 2026 06:34:57 GMT
Content-type text/html; charset=utf-8
Content-length 32867
X-sucuri-id 19012
Age 5263
Cache-control max-age=14400
Content-encoding gzip
Content-security-policy-report-only font-src 'self' https://s3.amazonaws.com/media.nngroup.com/ https://media.nngroup.com; default-src 'self'; img-src 'self' https://s3.amazonaws.com/media.nngroup.com/ https://media.nngroup.com; connect-src 'self'; style-src 'self' https://s3.amazonaws.com/media.nngroup.com/ https://media.nngroup.com; script-src 'self' https://s3.amazonaws.com/media.nngroup.com/ https://media.nngroup.com
Cross-origin-opener-policy same-origin
Expires Tue, 21 Jul 2026 09:07:14 GMT
Nel {"report_to":"heroku-nel","response_headers":["Via"],"max_age":3600,"success_fraction":0.01,"failure_fraction":0.1}
Referrer-policy strict-origin-when-cross-origin
Report-to {"group":"heroku-nel","endpoints":[{"url":"https://nel.heroku.com/reports?s=%2F935dSTYptljaBCrLc2jvFylMKfnuXw1A2vXDM3dfjI%3D\u0026sid=929419e7-33ea-4e2f-85f0-7d8b7cd5cbd6\u0026ts=1784615696"}],"max_age":3600}
Reporting-endpoints heroku-nel="https://nel.heroku.com/reports?s=%2F935dSTYptljaBCrLc2jvFylMKfnuXw1A2vXDM3dfjI%3D&sid=929419e7-33ea-4e2f-85f0-7d8b7cd5cbd6&ts=1784615696"
Strict-transport-security max-age=63072000; includeSubDomains; preload
Vary Cookie, Accept-Encoding
Via 1.1 heroku-router
X-content-type-options nosniff
X-frame-options SAMEORIGIN
Server Sucuri/Cloudproxy
X-sucuri-cache MISS
Alt-svc h3=":443"; ma=86400
