Información Técnica
| Código de estado HTTP | 200 |
| Versión HTTP | HTTP/1.1 |
| HTTPS | ✔ Disponible |
| Dirección IP | 64.239.109.1 |
| Software del servidor | Vercel |
| CDN | Vercel |
| Compresión | gzip |
|
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 64.239.109.1
Software del servidor Vercel
CDN Vercel
Compresión gzip
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://sja.org.uk:443 | 301 | HTTP/2 301 |
| 2 | https://www.sja.org.uk/ | 200 | HTTP/2 200 |
#1 URL https://sja.org.uk:443
Código de estado HTTP 301
Estado HTTP/2 301
#2 URL https://www.sja.org.uk/
Código de estado HTTP 200
Estado HTTP/2 200
Rendimiento
| Resolución DNS | 16.7 ms |
| Conexión TCP | 17.9 ms |
| Negociación TLS | 7.1 ms |
| Tiempo hasta el primer byte (TTFB) | 317.6 ms |
| Descarga de contenido | 166.9 ms |
| Tiempo total de respuesta | 484.6 ms |
Resolución DNS 16.7 ms
Conexión TCP 17.9 ms
Negociación TLS 7.1 ms
Tiempo hasta el primer byte (TTFB) 317.6 ms
Descarga de contenido 166.9 ms
Tiempo total de respuesta 484.6 ms
Seguridad
| HTTPS | ✔ Activado |
| HSTS | ✔ max-age=63072000 |
| CSP | ⚠ No configurado |
| X-Frame-Options | ⚠ No configurado |
| X-Content-Type-Options | ⚠ No configurado |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Activado
HSTS ✔ max-age=63072000
CSP ⚠ No configurado
X-Frame-Options ⚠ No configurado
X-Content-Type-Options ⚠ No configurado
HTTP/2 ⚠ HTTP/1.1
Comprobación SEO
| Título | England's First Aid Charity | St John Ambulance |
| Meta descripción | Teaching and providing first aid and medical services across the UK. Get advice, volunteer, donate, or fundraise with St John Ambulance. |
| Canonical | https://www.sja.org.uk/ |
| Robots Meta | index, follow |
| Título Open Graph | England's First Aid Charity |
| Descripción Open Graph | Teaching and providing first aid and medical services across the UK. Get advice, volunteer, donate, or fundraise with St John Ambulance. |
| Twitter Card | summary_large_image |
| Título Twitter | England's First Aid Charity |
| Descripción Twitter | Teaching and providing first aid and medical services across the UK. Get advice, volunteer, donate, or fundraise with St John Ambulance. |
Título England's First Aid Charity | St John Ambulance
Meta descripción Teaching and providing first aid and medical services across the UK. Get advice, volunteer, donate, or fundraise with St John Ambulance.
Canonical https://www.sja.org.uk/
Robots Meta index, follow
Título Open Graph England's First Aid Charity
Descripción Open Graph Teaching and providing first aid and medical services across the UK. Get advice, volunteer, donate, or fundraise with St John Ambulance.
Twitter Card summary_large_image
Título Twitter England's First Aid Charity
Descripción Twitter Teaching and providing first aid and medical services across the UK. Get advice, volunteer, donate, or fundraise with St John Ambulance.
Tecnologías Detectadas
| Tecnología | Shopify React Google Analytics Google Tag Manager Next.js |
Tecnología Shopify React Google Analytics Google Tag Manager Next.js
Cabeceras HTTP
| Age
| 0 |
| Cache-control
| private, no-cache, no-store, max-age=0, must-revalidate |
| Content-encoding
| gzip |
| Content-type
| text/html; charset=utf-8 |
| Date
| Wed, 22 Jul 2026 18:50:37 GMT |
| Link
| ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="style", ; rel=preload; as="style", ; rel=preload; as="style" |
| Server
| Vercel |
| Strict-transport-security
| max-age=63072000 |
| Vary
| RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Router-Segment-Prefetch |
| X-matched-path
| / |
| X-powered-by
| Next.js |
| X-vercel-cache
| MISS |
| X-vercel-id
| cdg1::iad1::ztbhw-1784746237043-efb358438034 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Description | Teaching and providing first aid and medical services across the UK. Get advice, volunteer, donate, or fundraise with St John Ambulance. |
| Author | St John Ambulance |
| Creator | St John Ambulance |
| Publisher | St John Ambulance |
| Robots | index, follow |
Age 0
Cache-control private, no-cache, no-store, max-age=0, must-revalidate
Content-encoding gzip
Content-type text/html; charset=utf-8
Date Wed, 22 Jul 2026 18:50:37 GMT
Link ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="font"; crossorigin=""; type="font/otf", ; rel=preload; as="style", ; rel=preload; as="style", ; rel=preload; as="style"
Server Vercel
Strict-transport-security max-age=63072000
Vary RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Router-Segment-Prefetch
X-matched-path /
X-powered-by Next.js
X-vercel-cache MISS
X-vercel-id cdg1::iad1::ztbhw-1784746237043-efb358438034
