Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 143.204.194.87 |
| Server Software | Apache |
| CDN | CDN (Hit from cloudfront) |
| Compression | gzip |
|
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 143.204.194.87
Server Software Apache
CDN CDN (Hit from cloudfront)
Compression gzip
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
Performance
| DNS Lookup | 18 ms |
| TCP Connect | 19 ms |
| TLS Handshake | 5.9 ms |
| Time To First Byte (TTFB) | 29.4 ms |
| Content Download | 0.4 ms |
| Total Response Time | 29.9 ms |
DNS Lookup 18 ms
TCP Connect 19 ms
TLS Handshake 5.9 ms
Time To First Byte (TTFB) 29.4 ms
Content Download 0.4 ms
Total Response Time 29.9 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31536000; includeSubdomains; preload |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31536000; includeSubdomains; preload
CSP ⚠ Not configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | NSF - U.S. National Science Foundation |
| Meta Description | NSF is an independent federal agency that supports science and engineering in all 50 states and U.S. territories. |
| Canonical | https://www.nsf.gov/ |
| Open Graph Title | NSF - U.S. National Science Foundation |
| Open Graph Description | NSF's mission is to advance the progress of science, a mission accomplished by funding proposals for research and education made by scientists, engineers, and educators from across the country. |
| Open Graph Image | https://www.nsf.gov/themes/custom/nsf_theme/logo-200x200.png |
| Twitter Card | summary_large_image |
| Twitter Title | NSF - U.S. National Science Foundation |
| Twitter Image | https://www.nsf.gov/themes/custom/nsf_theme/logo-200x200.png |
Title NSF - U.S. National Science Foundation Meta Description NSF is an independent federal agency that supports science and engineering in all 50 states and U.S. territories. Canonical https://www.nsf.gov/ Open Graph Title NSF - U.S. National Science Foundation Open Graph Description NSF's mission is to advance the progress of science, a mission accomplished by funding proposals for research and education made by scientists, engineers, and educators from across the country. Open Graph Image https://www.nsf.gov/themes/custom/nsf_theme/logo-200x200.png Twitter Card summary_large_image Twitter Title NSF - U.S. National Science Foundation Twitter Image https://www.nsf.gov/themes/custom/nsf_theme/logo-200x200.png Detected Technologies
| Technology | Drupal Google Analytics Google Tag Manager Apache |
Technology Drupal Google Analytics Google Tag Manager Apache
HTTP Headers
| Content-type
| text/html; charset=UTF-8 |
| Date
| Sat, 25 Jul 2026 02:49:58 GMT |
| X-xss-protection
| 1; mode=block |
| Strict-transport-security
| max-age=31536000; includeSubdomains; preload |
| Server
| Apache |
| X-content-type-options
| nosniff |
| Cache-control
| max-age=3600, public, stale-if-error=3600, stale-while-revalidate=300 |
| X-drupal-dynamic-cache
| MISS |
| Content-language
| en |
| X-frame-options
| SAMEORIGIN |
| Expires
| Sun, 19 Nov 1978 05:00:00 GMT |
| Last-modified
| Sat, 25 Jul 2026 01:49:50 GMT |
| X-generator
| Drupal 10 (https://www.drupal.org) |
| X-drupal-cache
| HIT |
| Set-cookie
| ADRUM_BT=R%3A0%7Cg%3A68f7b77a-82a9-4cef-b85f-05b1072d3f6117%7Cn%3Ansf-prod_4d17e3c3-6450-4c65-944e-6e5d49a6ce63%7Ci%3A872647%7Ce%3A259; expires=Sat, 25 Jul 2026 02:50:28 GMT; Max-Age=30; path=/; secure |
| Content-encoding
| gzip |
| Etag
| "1784944190-gzip" |
| Vary
| Origin |
| X-cache
| Hit from cloudfront |
| Via
| 1.1 a5fdba77ec4f6b406cdb6442bfe55778.cloudfront.net (CloudFront) |
| X-amz-cf-pop
| CDG54-P1 |
| X-amz-cf-id
| lL8pIyy4j6s5meCxeuXKmVEqrnzwAP3XqixQVhiGXj-_VczJeornyA== |
| Age
| 3215 |
Meta Tags
| Description | NSF is an independent federal agency that supports science and engineering in all 50 states and U.S. territories. |
| Generator | Drupal 10 (https://www.drupal.org) |
| MobileOptimized | width |
| HandheldFriendly | true |
| Viewport | width=device-width, initial-scale=1.0 |
Content-type text/html; charset=UTF-8
Date Sat, 25 Jul 2026 02:49:58 GMT
X-xss-protection 1; mode=block
Strict-transport-security max-age=31536000; includeSubdomains; preload
Server Apache
X-content-type-options nosniff
Cache-control max-age=3600, public, stale-if-error=3600, stale-while-revalidate=300
X-drupal-dynamic-cache MISS
Content-language en
X-frame-options SAMEORIGIN
Expires Sun, 19 Nov 1978 05:00:00 GMT
Last-modified Sat, 25 Jul 2026 01:49:50 GMT
X-generator Drupal 10 (https://www.drupal.org)
X-drupal-cache HIT
Set-cookie ADRUM_BT=R%3A0%7Cg%3A68f7b77a-82a9-4cef-b85f-05b1072d3f6117%7Cn%3Ansf-prod_4d17e3c3-6450-4c65-944e-6e5d49a6ce63%7Ci%3A872647%7Ce%3A259; expires=Sat, 25 Jul 2026 02:50:28 GMT; Max-Age=30; path=/; secure
Content-encoding gzip
Etag "1784944190-gzip"
Vary Origin
X-cache Hit from cloudfront
Via 1.1 a5fdba77ec4f6b406cdb6442bfe55778.cloudfront.net (CloudFront)
X-amz-cf-pop CDG54-P1
X-amz-cf-id lL8pIyy4j6s5meCxeuXKmVEqrnzwAP3XqixQVhiGXj-_VczJeornyA==
Age 3215
