Información Técnica
| Código de estado HTTP | 200 |
| Versión HTTP | HTTP/1.1 |
| HTTPS | ✔ Disponible |
| Dirección IP | 144.171.1.149 |
| CDN | CDN (MISS, HIT, MISS) |
|
🔄 🟡 Cadena de redirecciones larga | Hay 4 redirecciones, lo que puede afectar al SEO y al rendimiento. |
|
🔒 🟡 Mixed Content (6 recursos HTTP) | La página se sirve por HTTPS pero carga 6 recurso(s) por HTTP. Esto puede bloquearse en navegadores modernos. |
|
🕐 🟡 Respuesta lenta (1049 ms) | El tiempo de respuesta supera 1 segundo. Considera optimizar el servidor o usar caché. |
|
ℹ 🔵 Falta Content Security Policy | No se ha configurado CSP. Ayuda a prevenir ataques XSS e inyección de contenido. |
|
ℹ 🔵 Sin compresión | El servidor no usa Gzip ni Brotli. Habilita compresión para reducir el ancho de banda. |
Código de estado HTTP 200
Versión HTTP HTTP/1.1
HTTPS ✔ Disponible
Dirección IP 144.171.1.149
CDN CDN (MISS, HIT, MISS)
🔄 🟡 Cadena de redirecciones larga Hay 4 redirecciones, lo que puede afectar al SEO y al rendimiento.
🔒 🟡 Mixed Content (6 recursos HTTP) La página se sirve por HTTPS pero carga 6 recurso(s) por HTTP. Esto puede bloquearse en navegadores modernos.
🕐 🟡 Respuesta lenta (1049 ms) El tiempo de respuesta supera 1 segundo. Considera optimizar el servidor o usar caché.
ℹ 🔵 Falta Content Security Policy No se ha configurado CSP. Ayuda a prevenir ataques XSS e inyección de contenido.
ℹ 🔵 Sin compresión El servidor no usa Gzip ni Brotli. Habilita compresión para reducir el ancho de banda.
Cadena de Redirecciones
| # | URL | Código de estado HTTP | Estado |
| 1 | https://trb.org:443 | 301 | HTTP/2 301 |
| 2 | https://trb.org/Main/Home.aspx | 301 | HTTP/2 301 |
| 3 | https://www.nationalacademies.org/trb/transportation-research-board | 301 | HTTP/1.0 301 Moved Permanently |
| 4 | https://www.nationalacademies.org/units/TRB-Transporta-23-P-586 | 200 | HTTP/1.1 200 OK |
#1 URL https://trb.org:443
Código de estado HTTP 301
Estado HTTP/2 301
#2 URL https://trb.org/Main/Home.aspx
Código de estado HTTP 301
Estado HTTP/2 301
#3 URL https://www.nationalacademies.org/trb/transportation-research-board
Código de estado HTTP 301
Estado HTTP/1.0 301 Moved Permanently
#4 URL https://www.nationalacademies.org/units/TRB-Transporta-23-P-586
Código de estado HTTP 200
Estado HTTP/1.1 200 OK
Rendimiento
| Resolución DNS | 2.5 ms |
| Conexión TCP | 84.2 ms |
| Negociación TLS | 167.4 ms |
| Tiempo hasta el primer byte (TTFB) | 377 ms |
| Descarga de contenido | 672.2 ms |
| Tiempo total de respuesta | 1049.2 ms |
Resolución DNS 2.5 ms
Conexión TCP 84.2 ms
Negociación TLS 167.4 ms
Tiempo hasta el primer byte (TTFB) 377 ms
Descarga de contenido 672.2 ms
Tiempo total de respuesta 1049.2 ms
Seguridad
| HTTPS | ✔ Activado |
| HSTS | ✔ max-age=31557600 |
| 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=31557600
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 | Transportation Research Board (TRB) |
| Meta descripción | the Transportation Research Board (TRB) mobilizes expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges. |
| Título Open Graph | Transportation Research Board (TRB) |
| Descripción Open Graph | the Transportation Research Board (TRB) mobilizes expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges. |
| Imagen Open Graph | https://www.nationalacademies.org/cover.jpg |
| Twitter Card | summary |
| Título Twitter | Transportation Research Board (TRB) |
| Descripción Twitter | the Transportation Research Board (TRB) mobilizes expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges. |
| Imagen Twitter | https://www.nationalacademies.org/cover.jpg |
Título Transportation Research Board (TRB) Meta descripción the Transportation Research Board (TRB) mobilizes expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges. Título Open Graph Transportation Research Board (TRB) Descripción Open Graph the Transportation Research Board (TRB) mobilizes expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges. Imagen Open Graph https://www.nationalacademies.org/cover.jpg Twitter Card summary Título Twitter Transportation Research Board (TRB) Descripción Twitter the Transportation Research Board (TRB) mobilizes expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges. Imagen Twitter https://www.nationalacademies.org/cover.jpg Tecnologías Detectadas
| Tecnología | Google Analytics Google Tag Manager Node.js |
Tecnología Google Analytics Google Tag Manager Node.js
Cabeceras HTTP
| Connection
| keep-alive |
| Content-Length
| 366172 |
| Referrer-policy
| strict-origin-when-cross-origin |
| X-platform-server
| i-0a5226b6b350120d4 |
| X-timer
| S1784697313.066474,VS0,VE3764 |
| Cache-control
| public, s-maxage=180, stale-if-error=86400, stale-while-revalidate=600 |
| Traceresponse
| 00-18c484c0279941c7ea8433bb36beff14-13060c8e955a38d6-01 |
| Content-type
| text/html; charset=UTF-8 |
| Via
| 1.1 varnish, 1.1 varnish, 1.1 varnish |
| X-frame-options
| SAMEORIGIN |
| X-content-type-options
| nosniff |
| X-xss-protection
| 1; mode=block |
| X-debug-info
| eyJyZXRyaWVzIjowfQ== |
| Accept-Ranges
| bytes |
| Age
| 99 |
| Date
| Wed, 22 Jul 2026 05:16:56 GMT |
| X-Served-By
| cache-iad-kjyo7100058-IAD, cache-iad-kjyo7100058-IAD, cache-iad-kjyo7100058-IAD, cache-nyc-kteb1890030-NYC |
| X-Cache
| MISS, HIT, MISS |
| X-Cache-Hits
| 0, 2, 0 |
| Strict-Transport-Security
| max-age=31557600 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Description | the Transportation Research Board (TRB) mobilizes expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges. |
| Apple-mobile-web-app-title | National Academies |
Connection keep-alive
Content-Length 366172
Referrer-policy strict-origin-when-cross-origin
X-platform-server i-0a5226b6b350120d4
X-timer S1784697313.066474,VS0,VE3764
Cache-control public, s-maxage=180, stale-if-error=86400, stale-while-revalidate=600
Traceresponse 00-18c484c0279941c7ea8433bb36beff14-13060c8e955a38d6-01
Content-type text/html; charset=UTF-8
Via 1.1 varnish, 1.1 varnish, 1.1 varnish
X-frame-options SAMEORIGIN
X-content-type-options nosniff
X-xss-protection 1; mode=block
X-debug-info eyJyZXRyaWVzIjowfQ==
Accept-Ranges bytes
Age 99
Date Wed, 22 Jul 2026 05:16:56 GMT
X-Served-By cache-iad-kjyo7100058-IAD, cache-iad-kjyo7100058-IAD, cache-iad-kjyo7100058-IAD, cache-nyc-kteb1890030-NYC
X-Cache MISS, HIT, MISS
X-Cache-Hits 0, 2, 0
Strict-Transport-Security max-age=31557600
