Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 52.191.90.193 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 52.191.90.193
Server Software cloudflare
CDN Cloudflare
Compression gzip
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://nsf.org:443 | 308 | HTTP/2 308 |
| 2 | https://www.nsf.org | 200 | HTTP/2 103 |
#1 URL https://nsf.org:443
HTTP Status Code 308
Status HTTP/2 308
#2 URL https://www.nsf.org
HTTP Status Code 200
Status HTTP/2 103
Performance
| DNS Lookup | 10.4 ms |
| TCP Connect | 11.8 ms |
| TLS Handshake | 11.1 ms |
| Time To First Byte (TTFB) | 36.9 ms |
| Content Download | 49.5 ms |
| Total Response Time | 86.5 ms |
DNS Lookup 10.4 ms
TCP Connect 11.8 ms
TLS Handshake 11.1 ms
Time To First Byte (TTFB) 36.9 ms
Content Download 49.5 ms
Total Response Time 86.5 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=15724800; includeSubDomains |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=15724800; includeSubDomains
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | NSF | The Public Health and Safety Organization |
| Meta Description | NSF, a trusted authority for health standards, testing, certification, and consulting, enhances global human health with public safety standards and… |
| Canonical | https://www.nsf.org |
| Robots Meta | index, follow |
| Open Graph Title | The Public Health and Safety Organization |
| Open Graph Description | NSF, a trusted authority for health standards, testing, certification, and consulting, enhances global human health with public safety standards and… |
| Open Graph Image | https://d2evkimvhatqav.cloudfront.net/images/lab/germany/... |
| Twitter Card | summary_large_image |
| Twitter Title | The Public Health and Safety Organization |
| Twitter Description | NSF, a trusted authority for health standards, testing, certification, and consulting, enhances global human health with public safety standards and… |
| Twitter Image | https://d2evkimvhatqav.cloudfront.net/images/lab/germany/... |
Title NSF | The Public Health and Safety Organization Meta Description NSF, a trusted authority for health standards, testing, certification, and consulting, enhances global human health with public safety standards and… Canonical https://www.nsf.org Robots Meta index, follow Open Graph Title The Public Health and Safety Organization Open Graph Description NSF, a trusted authority for health standards, testing, certification, and consulting, enhances global human health with public safety standards and… Open Graph Image https://d2evkimvhatqav.cloudfront.net/images/lab/germany/... Twitter Card summary_large_image Twitter Title The Public Health and Safety Organization Twitter Description NSF, a trusted authority for health standards, testing, certification, and consulting, enhances global human health with public safety standards and… Twitter Image https://d2evkimvhatqav.cloudfront.net/images/lab/germany/... Detected Technologies
| Technology | Google Analytics Google Tag Manager Cloudflare Node.js Next.js |
Technology Google Analytics Google Tag Manager Cloudflare Node.js Next.js
HTTP Headers
| Link
| ; rel=preload; as="font"; crossorigin=""; type="font/woff2" |
| Date
| Fri, 24 Jul 2026 15:04:42 GMT |
| Content-type
| text/html; charset=utf-8 |
| Cache-control
| public, max-age=86400 |
| Expires
| Sat, 25 Jul 2026 15:04:42 GMT |
| X-middleware-rewrite
| /us/en/$homepage/ |
| Vary
| RSC, Next-Router-State-Tree, Next-Router-Prefetch, Accept-Encoding |
| X-powered-by
| Next.js |
| Speculation-rules
| "/cdn-cgi/speculation" |
| Strict-transport-security
| max-age=15724800; includeSubDomains |
| Age
| 2993 |
| Last-modified
| Fri, 24 Jul 2026 14:20:32 GMT |
| Cf-cache-status
| HIT |
| Content-encoding
| gzip |
| Server
| cloudflare |
| Cf-ray
| a203d1a26b44047f-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Description | NSF, a trusted authority for health standards, testing, certification, and consulting, enhances global human health with public safety standards and… |
| Referrer | no-referrer-when-downgrade |
| Robots | index, follow |
| Apple-mobile-web-app-title | NSF |
| Application-name | NSF |
| Msapplication-TileColor | #214ae4 |
| Msapplication-config | /browserconfig.xml |
| Theme-color | #ffffff |
| Naver-site-verification | e77984dd49c05ead5711848f83318f2f859fe7c2 |
| Fb:profile_id | 148548965168926 |
| Google-site-verification | _RDnIuu0xsA_OAntp5qZUijgpc4__Wt3U8GfF1pRy6E |
Link ; rel=preload; as="font"; crossorigin=""; type="font/woff2"
Date Fri, 24 Jul 2026 15:04:42 GMT
Content-type text/html; charset=utf-8
Cache-control public, max-age=86400
Expires Sat, 25 Jul 2026 15:04:42 GMT
X-middleware-rewrite /us/en/$homepage/
Vary RSC, Next-Router-State-Tree, Next-Router-Prefetch, Accept-Encoding
X-powered-by Next.js
Speculation-rules "/cdn-cgi/speculation"
Strict-transport-security max-age=15724800; includeSubDomains
Age 2993
Last-modified Fri, 24 Jul 2026 14:20:32 GMT
Cf-cache-status HIT
Content-encoding gzip
Server cloudflare
Cf-ray a203d1a26b44047f-CDG
Alt-svc h3=":443"; ma=86400
