Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 216.176.200.22 |
| Server Software | nginx |
| 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. |
|
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 216.176.200.22
Server Software nginx
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.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Performance
| DNS Lookup | 4.1 ms |
| TCP Connect | 145.7 ms |
| TLS Handshake | 144.3 ms |
| Time To First Byte (TTFB) | 432.6 ms |
| Content Download | 0.2 ms |
| Total Response Time | 432.9 ms |
DNS Lookup 4.1 ms
TCP Connect 145.7 ms
TLS Handshake 144.3 ms
Time To First Byte (TTFB) 432.6 ms
Content Download 0.2 ms
Total Response Time 432.9 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | f.lux: software to make your life better |
| Meta Description | Is your computer keeping you up late? f.lux is a free download that warms up your computer display at night, to match your indoor lighting. |
| Robots Meta | NOODP |
| Open Graph Title | f.lux |
| Open Graph Description | Software to warm up your computer display at night, to match your indoor lighting. |
| Open Graph Image | http://justgetflux.com/flux-icon-big.png |
Title f.lux: software to make your life better Meta Description Is your computer keeping you up late? f.lux is a free download that warms up your computer display at night, to match your indoor lighting. Robots Meta NOODP Open Graph Title f.lux Open Graph Description Software to warm up your computer display at night, to match your indoor lighting. Open Graph Image http://justgetflux.com/flux-icon-big.png Detected Technologies
| Technology | Google Analytics Nginx Disqus |
Technology Google Analytics Nginx Disqus
HTTP Headers
| Server
| nginx |
| Date
| Thu, 20 Aug 2026 04:58:48 GMT |
| Content-Type
| text/html |
| Transfer-Encoding
| chunked |
| Connection
| keep-alive |
| Keep-Alive
| timeout=35 |
| Expires
| Thu, 20 Aug 2026 04:59:48 GMT |
| Cache-Control
| max-age=60 |
| Content-Encoding
| gzip |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Google-translate-customization | 3631dc34752a5bd0-f3b7a8eb46555cc6-g8a80ab4dab9c787b-f |
| Google-site-verification | _LSNIZNbRc7baivmIElH3vPMTmJnZ-IafPOA7eKnU_I |
| Fb:admins | 536447593 |
| Fb:app_id | 202802963081359 |
| Fb:page_id | 154201771283247 |
| Description | Is your computer keeping you up late? f.lux is a free download that warms up your computer display at night, to match your indoor lighting. |
| Robots | NOODP |
Server nginx
Date Thu, 20 Aug 2026 04:58:48 GMT
Content-Type text/html
Transfer-Encoding chunked
Connection keep-alive
Keep-Alive timeout=35
Expires Thu, 20 Aug 2026 04:59:48 GMT
Cache-Control max-age=60
Content-Encoding gzip
