Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 199.16.172.194 |
| Server Software | nginx |
| CDN | CDN detected (Server-Timing) |
| 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 199.16.172.194
Server Software nginx
CDN CDN detected (Server-Timing)
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://sleepfoundation.org:443 | 301 | HTTP/2 301 |
| 2 | https://www.sleepfoundation.org/ | 200 | HTTP/2 200 |
#1 URL https://sleepfoundation.org:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.sleepfoundation.org/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 13.6 ms |
| TCP Connect | 15 ms |
| TLS Handshake | 7.6 ms |
| Time To First Byte (TTFB) | 223.5 ms |
| Content Download | 29.9 ms |
| Total Response Time | 253.5 ms |
DNS Lookup 13.6 ms
TCP Connect 15 ms
TLS Handshake 7.6 ms
Time To First Byte (TTFB) 223.5 ms
Content Download 29.9 ms
Total Response Time 253.5 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31536000 |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| Referrer Policy | no-referrer-when-downgrade |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31536000
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
Referrer Policy no-referrer-when-downgrade
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Sleep Advice, Mattress & Product Reviews | Sleep Foundation |
| Meta Description | At SleepFoundation.org, we combine decades of experience in sleep health education with comprehensive product testing and the latest in sleep research to put you on the path to good sleep. |
| Canonical | https://www.sleepfoundation.org/ |
| Robots Meta | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Open Graph Title | Home |
| Open Graph Description | At SleepFoundation.org, we combine decades of experience in sleep health education with comprehensive product testing and the latest in sleep research to put you on the path to good sleep. |
| Open Graph Image | https://www.sleepfoundation.org/wp-content/uploads/2020/1... |
| Twitter Card | summary_large_image |
Title Sleep Advice, Mattress & Product Reviews | Sleep Foundation Meta Description At SleepFoundation.org, we combine decades of experience in sleep health education with comprehensive product testing and the latest in sleep research to put you on the path to good sleep. Canonical https://www.sleepfoundation.org/ Robots Meta index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 Open Graph Title Home Open Graph Description At SleepFoundation.org, we combine decades of experience in sleep health education with comprehensive product testing and the latest in sleep research to put you on the path to good sleep. Open Graph Image https://www.sleepfoundation.org/wp-content/uploads/2020/1... Twitter Card summary_large_image Detected Technologies
| Technology | WordPress Google Analytics Google Tag Manager Nginx PHP |
Technology WordPress Google Analytics Google Tag Manager Nginx PHP
HTTP Headers
| Server
| nginx |
| Date
| Tue, 28 Jul 2026 17:33:30 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Strict-transport-security
| max-age=31536000 |
| Vary
| Cookie |
| Last-modified
| Tue, 28 Jul 2026 17:32:15 GMT |
| Cache-control
| max-age=225, must-revalidate |
| X-nananana
| Batcache-Hit |
| Host-header
| wpcloud |
| Referrer-policy
| no-referrer-when-downgrade |
| Link
| ; rel=shortlink |
| Content-encoding
| gzip |
| X-ac
| 36.cdg _atomic_ams MISS |
| Alt-svc
| clear |
| Server-timing
| a8c-cdn, dc;desc=cdg, cache;desc=MISS;dur=196.0 |
Meta Tags
| Content-Type | text/html; charset=UTF-8 |
| 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 SleepFoundation.org, we combine decades of experience in sleep health education with comprehensive product testing and the latest in sleep research to put you on the path to good sleep. |
| Article:published_time | 2023-03-03T00:00:00+00:00 |
| Date | Fri, 03 Mar 2023 00:00:00 GMT |
| Article:modified_time | 2025-11-08T00:00:00+00:00 |
| Last-modified | Sat, 08 Nov 2025 00:00:00 GMT |
| Msapplication-TileImage |  |
Server nginx
Date Tue, 28 Jul 2026 17:33:30 GMT
Content-type text/html; charset=UTF-8
Strict-transport-security max-age=31536000
Vary Cookie
Last-modified Tue, 28 Jul 2026 17:32:15 GMT
Cache-control max-age=225, must-revalidate
X-nananana Batcache-Hit
Host-header wpcloud
Referrer-policy no-referrer-when-downgrade
Link ; rel=shortlink
Content-encoding gzip
X-ac 36.cdg _atomic_ams MISS
Alt-svc clear
Server-timing a8c-cdn, dc;desc=cdg, cache;desc=MISS;dur=196.0
