Información Técnica
| Código de estado HTTP | 200 |
| Versión HTTP | HTTP/1.1 |
| HTTPS | ✔ Disponible |
| Dirección IP | 104.21.92.81 |
| Software del servidor | cloudflare |
| CDN | Cloudflare |
| 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 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 104.21.92.81
Software del servidor cloudflare
CDN Cloudflare
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 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).
Rendimiento
| Resolución DNS | 23.8 ms |
| Conexión TCP | 25.7 ms |
| Negociación TLS | 8.1 ms |
| Tiempo hasta el primer byte (TTFB) | 456.5 ms |
| Descarga de contenido | 79.5 ms |
| Tiempo total de respuesta | 536 ms |
Resolución DNS 23.8 ms
Conexión TCP 25.7 ms
Negociación TLS 8.1 ms
Tiempo hasta el primer byte (TTFB) 456.5 ms
Descarga de contenido 79.5 ms
Tiempo total de respuesta 536 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 | Prevent Blindness: Eye Health Resources and Advocacy |
| Meta descripción | Discover eye health resources from Prevent Blindness. Learn about vision diseases, safety tips, and ways to support our mission to save sight. |
| Canonical | https://preventblindness.org/ |
| Robots Meta | follow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large |
| Título Open Graph | Prevent Blindness: Eye Health Resources and Advocacy |
| Descripción Open Graph | Discover eye health resources from Prevent Blindness. Learn about vision diseases, safety tips, and ways to support our mission to save sight. |
| Imagen Open Graph | https://preventblindness.org/wp-content/uploads/2021/03/d... |
| Twitter Card | summary_large_image |
| Título Twitter | Prevent Blindness: Eye Health Resources and Advocacy |
| Descripción Twitter | Discover eye health resources from Prevent Blindness. Learn about vision diseases, safety tips, and ways to support our mission to save sight. |
| Imagen Twitter | https://preventblindness.org/wp-content/uploads/2021/03/d... |
Título Prevent Blindness: Eye Health Resources and Advocacy Meta descripción Discover eye health resources from Prevent Blindness. Learn about vision diseases, safety tips, and ways to support our mission to save sight. Canonical https://preventblindness.org/ Robots Meta follow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large Título Open Graph Prevent Blindness: Eye Health Resources and Advocacy Descripción Open Graph Discover eye health resources from Prevent Blindness. Learn about vision diseases, safety tips, and ways to support our mission to save sight. Imagen Open Graph https://preventblindness.org/wp-content/uploads/2021/03/d... Twitter Card summary_large_image Título Twitter Prevent Blindness: Eye Health Resources and Advocacy Descripción Twitter Discover eye health resources from Prevent Blindness. Learn about vision diseases, safety tips, and ways to support our mission to save sight. Imagen Twitter https://preventblindness.org/wp-content/uploads/2021/03/d... Tecnologías Detectadas
| Tecnología | WordPress jQuery Google Analytics Google Tag Manager Cloudflare PHP Hotjar |
Tecnología WordPress jQuery Google Analytics Google Tag Manager Cloudflare PHP Hotjar
Cabeceras HTTP
| Date
| Wed, 22 Jul 2026 02:06:57 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Server
| cloudflare |
| Last-modified
| Wed, 22 Jul 2026 00:58:52 GMT |
| Cache-control
| max-age=0 |
| Expires
| Wed, 22 Jul 2026 02:06:57 GMT |
| Vary
| Accept-Encoding,User-Agent |
| Report-to
| {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=Xd3J1Q604eeAzN9SVfoksfbztFQae1z%2FiQPZEk6g9DUObIJ3rkt1NgfP8PBZQ9sH3ehDxljVNcZrAwt7efdAlCPbCa66bFhiCm3wa%2B7cLc8ij5rqUoGH7EKMfEHFpU1mjnQH9lx79DK2SX%2FVZrBZHomW0Q%3D%3D"}]} |
| X-proxy-cache
| MISS |
| Cf-cache-status
| DYNAMIC |
| Nel
| {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} |
| Speculation-rules
| "/cdn-cgi/speculation" |
| Server-timing
| cfEdge;dur=6,cfOrigin;dur=330 |
| Content-encoding
| gzip |
| Cf-ray
| a1eee396acb36b98-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Msapplication-TileColor | #da532c |
| Msapplication-config | https://preventblindness.org/wp-content/uploads/fbrfg/browserconfig.xml |
| Description | Discover eye health resources from Prevent Blindness. Learn about vision diseases, safety tips, and ways to support our mission to save sight. |
| Robots | follow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large |
| Article:published_time | 2020-04-20T13:12:35-05:00 |
| Article:modified_time | 2026-07-01T01:09:08-05:00 |
| Tec-api-version | v1 |
| Tec-api-origin | https://preventblindness.org |
| Generator | Powered by WPBakery Page Builder - drag and drop page builder for WordPress. |
Date Wed, 22 Jul 2026 02:06:57 GMT
Content-type text/html; charset=UTF-8
Server cloudflare
Last-modified Wed, 22 Jul 2026 00:58:52 GMT
Cache-control max-age=0
Expires Wed, 22 Jul 2026 02:06:57 GMT
Vary Accept-Encoding,User-Agent
Report-to {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=Xd3J1Q604eeAzN9SVfoksfbztFQae1z%2FiQPZEk6g9DUObIJ3rkt1NgfP8PBZQ9sH3ehDxljVNcZrAwt7efdAlCPbCa66bFhiCm3wa%2B7cLc8ij5rqUoGH7EKMfEHFpU1mjnQH9lx79DK2SX%2FVZrBZHomW0Q%3D%3D"}]}
X-proxy-cache MISS
Cf-cache-status DYNAMIC
Nel {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Speculation-rules "/cdn-cgi/speculation"
Server-timing cfEdge;dur=6,cfOrigin;dur=330
Content-encoding gzip
Cf-ray a1eee396acb36b98-CDG
Alt-svc h3=":443"; ma=86400
