Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 143.198.12.240 |
| Server Software | nginx |
| CDN | CDN (MISS) |
| Compression | gzip |
|
ℹ 🔵 Missing HSTS | HTTP Strict Transport Security is not configured. Recommended for HTTPS sites. |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 143.198.12.240
Server Software nginx
CDN CDN (MISS)
Compression gzip
ℹ 🔵 Missing HSTS HTTP Strict Transport Security is not configured. Recommended for HTTPS sites.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
Performance
| DNS Lookup | 16.6 ms |
| TCP Connect | 108.7 ms |
| TLS Handshake | 97.3 ms |
| Time To First Byte (TTFB) | 845.9 ms |
| Content Download | 1.1 ms |
| Total Response Time | 847 ms |
DNS Lookup 16.6 ms
TCP Connect 108.7 ms
TLS Handshake 97.3 ms
Time To First Byte (TTFB) 845.9 ms
Content Download 1.1 ms
Total Response Time 847 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Home - Research to Prevent Blindness |
| Meta Description | At Research to Prevent Blindness, we enable the creation of treatments, preventives and cures for all eye diseases that threaten vision through scientific research. |
| Canonical | https://www.rpbusa.org/ |
| Robots Meta | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Open Graph Title | Home - Research to Prevent Blindness |
| Open Graph Description | At Research to Prevent Blindness, we enable the creation of treatments, preventives and cures for all eye diseases that threaten vision through scientific research. |
| Twitter Card | summary_large_image |
Title Home - Research to Prevent Blindness
Meta Description At Research to Prevent Blindness, we enable the creation of treatments, preventives and cures for all eye diseases that threaten vision through scientific research.
Canonical https://www.rpbusa.org/
Robots Meta index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Open Graph Title Home - Research to Prevent Blindness
Open Graph Description At Research to Prevent Blindness, we enable the creation of treatments, preventives and cures for all eye diseases that threaten vision through scientific research.
Twitter Card summary_large_image
Detected Technologies
| Technology | WordPress jQuery Google Analytics Google Tag Manager Cloudflare Nginx PHP |
Technology WordPress jQuery Google Analytics Google Tag Manager Cloudflare Nginx PHP
HTTP Headers
| Server
| nginx |
| Date
| Tue, 28 Jul 2026 00:37:22 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Content-length
| 41954 |
| Link
| ; rel="https://api.w.org/", ; rel="alternate"; title="JSON"; type="application/json", ; rel=shortlink |
| Set-cookie
| swpext86386=8b4a16b081c4ec31c3856f92260ab6f4; expires=Tue, 04 Aug 2026 00:37:22 GMT; Max-Age=604800; path=/ |
| Vary
| Accept-Encoding |
| Content-encoding
| gzip |
| Age
| 0 |
| X-cache
| MISS |
| Accept-ranges
| bytes |
| X-frame-options
| SAMEORIGIN |
Meta Tags
| X-ua-compatible | ie=edge |
| Viewport | width=device-width, initial-scale=1 |
| Robots | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Description | At Research to Prevent Blindness, we enable the creation of treatments, preventives and cures for all eye diseases that threaten vision through scientific research. |
| Article:publisher | https://www.facebook.com/ResearchtoPreventBlindness |
| Article:modified_time | 2026-06-23T15:38:14+00:00 |
| Generator | Site Kit by Google 1.160.1 |
| Msapplication-TileImage |  |
Server nginx
Date Tue, 28 Jul 2026 00:37:22 GMT
Content-type text/html; charset=UTF-8
Content-length 41954
Link ; rel="https://api.w.org/", ; rel="alternate"; title="JSON"; type="application/json", ; rel=shortlink
Set-cookie swpext86386=8b4a16b081c4ec31c3856f92260ab6f4; expires=Tue, 04 Aug 2026 00:37:22 GMT; Max-Age=604800; path=/
Vary Accept-Encoding
Content-encoding gzip
Age 0
X-cache MISS
Accept-ranges bytes
X-frame-options SAMEORIGIN
