Información Técnica
| Código de estado HTTP | 200 |
| Versión HTTP | HTTP/1.1 |
| HTTPS | ✔ Disponible |
| Dirección IP | 3.165.136.89 |
| Software del servidor | openresty |
| CDN | CDN (Hit from cloudfront) |
| Compresión | gzip |
|
🔒 🟡 Mixed Content (9 recursos HTTP) | La página se sirve por HTTPS pero carga 9 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. |
|
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 3.165.136.89
Software del servidor openresty
CDN CDN (Hit from cloudfront)
Compresión gzip
🔒 🟡 Mixed Content (9 recursos HTTP) La página se sirve por HTTPS pero carga 9 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.
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://stsci.edu:443 | 301 | HTTP/2 301 |
| 2 | https://www.stsci.edu/ | 200 | HTTP/1.1 200 OK |
#1 URL https://stsci.edu:443
Código de estado HTTP 301
Estado HTTP/2 301
#2 URL https://www.stsci.edu/
Código de estado HTTP 200
Estado HTTP/1.1 200 OK
Rendimiento
| Resolución DNS | 8.3 ms |
| Conexión TCP | 94.2 ms |
| Negociación TLS | 92.2 ms |
| Tiempo hasta el primer byte (TTFB) | 282.4 ms |
| Descarga de contenido | 85.6 ms |
| Tiempo total de respuesta | 367.9 ms |
Resolución DNS 8.3 ms
Conexión TCP 94.2 ms
Negociación TLS 92.2 ms
Tiempo hasta el primer byte (TTFB) 282.4 ms
Descarga de contenido 85.6 ms
Tiempo total de respuesta 367.9 ms
Seguridad
| HTTPS | ✔ Activado |
| HSTS | ✔ max-age=31536000; includeSubDomains |
| CSP | ⚠ No configurado |
| X-Frame-Options | ⚠ No configurado |
| X-Content-Type-Options | ✔ nosniff |
| Política de Referrer | origin |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Activado
HSTS ✔ max-age=31536000; includeSubDomains
CSP ⚠ No configurado
X-Frame-Options ⚠ No configurado
X-Content-Type-Options ✔ nosniff
Política de Referrer origin
HTTP/2 ⚠ HTTP/1.1
Comprobación SEO
| Título | Home | STScI |
| Meta descripción | The Space Telescope Science Institute helps humanity explore the universe with advanced space telescopes and ever-growing data archives. |
| Canonical | https://www.stsci.edu/home |
| Título Open Graph | Home |
| Descripción Open Graph | The Space Telescope Science Institute helps humanity explore the universe with advanced space telescopes and ever-growing data archives. |
| Imagen Open Graph | https://www.stsci.edu/modules/stsci-www-assets/assets/fav... |
Título Home | STScI Meta descripción The Space Telescope Science Institute helps humanity explore the universe with advanced space telescopes and ever-growing data archives. Canonical https://www.stsci.edu/home Título Open Graph Home Descripción Open Graph The Space Telescope Science Institute helps humanity explore the universe with advanced space telescopes and ever-growing data archives. Imagen Open Graph https://www.stsci.edu/modules/stsci-www-assets/assets/fav... Tecnologías Detectadas
| Tecnología | Google Analytics Google Tag Manager |
Tecnología Google Analytics Google Tag Manager
Cabeceras HTTP
| Date
| Thu, 23 Jul 2026 12:24:37 GMT |
| Server
| openresty |
| Content-Type
| text/html;charset=UTF-8 |
| Cache-Control
| private |
| Content-Encoding
| gzip |
| X-content-type-options
| nosniff |
| X-xss-protection
| 1; mode=block; |
| X-Resolver-IP
| 3.213.234.199 |
| Strict-Transport-Security
| max-age=31536000; includeSubDomains |
| Vary
| accept-encoding |
| X-Cache
| Hit from cloudfront |
| Via
| 1.1 4e2b60a8131e436f5ac38dc8a953edf4.cloudfront.net (CloudFront) |
| X-Amz-Cf-Pop
| IAD55-P3 |
| X-Amz-Cf-Id
| UkKua-Hmw8p-AiRfji8s2kDoiwC4sr_2KXhLGd5CtPj0OtTj7oU-sg== |
| Age
| 85 |
| Referrer-Policy
| origin |
| X-Forwarded-For
| 52.47.204.2 |
| Transfer-Encoding
| chunked |
Meta Tags
| X-ua-compatible | ie=edge |
| Viewport | width=device-width, initial-scale=1, user-scalable=yes |
| Description | The Space Telescope Science Institute helps humanity explore the universe with advanced space telescopes and ever-growing data archives. |
| Target_country | us |
| Apple-mobile-web-app-capable | yes |
| Apple-mobile-web-app-status-bar-style | black-translucent |
| Apple-mobile-web-app-title | Q Starter Kit |
| Mobile-web-app-capable | yes |
| Theme-color | #fff |
| Application-name | Q Starter Kit |
| Msapplication-TileColor | #fff |
| Msapplication-TileImage |  |
| Msapplication-config | /modules/stsci-www-assets/assets/favicons/www/browserconfig.xml |
| Ucode | 7EjHDCsimuhXhSQbYRmjcRWav3ttb3oEyGA9w9gU |
Date Thu, 23 Jul 2026 12:24:37 GMT
Server openresty
Content-Type text/html;charset=UTF-8
Cache-Control private
Content-Encoding gzip
X-content-type-options nosniff
X-xss-protection 1; mode=block;
X-Resolver-IP 3.213.234.199
Strict-Transport-Security max-age=31536000; includeSubDomains
Vary accept-encoding
X-Cache Hit from cloudfront
Via 1.1 4e2b60a8131e436f5ac38dc8a953edf4.cloudfront.net (CloudFront)
X-Amz-Cf-Pop IAD55-P3
X-Amz-Cf-Id UkKua-Hmw8p-AiRfji8s2kDoiwC4sr_2KXhLGd5CtPj0OtTj7oU-sg==
Age 85
Referrer-Policy origin
X-Forwarded-For 52.47.204.2
Transfer-Encoding chunked
