Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 95.216.145.1 |
| Server Software | nginx |
|
🔒 🟡 Mixed Content (1 HTTP resources) | The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers. |
|
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). |
|
ℹ 🔵 No Compression | The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 95.216.145.1
Server Software nginx
🔒 🟡 Mixed Content (1 HTTP resources) The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers.
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).
ℹ 🔵 No Compression The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage.
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://postfix.org:443 | 301 | HTTP/2 301 |
| 2 | https://www.postfix.org/ | 200 | HTTP/2 200 |
#1 URL https://postfix.org:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.postfix.org/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 101.3 ms |
| TCP Connect | 135.9 ms |
| TLS Handshake | 41.3 ms |
| Time To First Byte (TTFB) | 211.8 ms |
| Content Download | 0 ms |
| Total Response Time | 211.9 ms |
DNS Lookup 101.3 ms
TCP Connect 135.9 ms
TLS Handshake 41.3 ms
Time To First Byte (TTFB) 211.8 ms
Content Download 0 ms
Total Response Time 211.9 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 | The Postfix Home Page |
Title The Postfix Home Page
Detected Technologies
Technology Nginx
HTTP Headers
| Server
| nginx |
| Date
| Wed, 29 Jul 2026 14:00:50 GMT |
| Content-type
| text/html |
| Content-length
| 5726 |
| Last-modified
| Fri, 06 Feb 2026 12:11:00 GMT |
| Etag
| "6985da54-165e" |
| Accept-ranges
| bytes |
Meta Tags
| Google-site-verification | Nx2UG7gprc0LCFx3AGqDBJD-dZXkMJFYwMjlC7qYZPg |
| Content-Type | text/html; charset=us-ascii |
Server nginx
Date Wed, 29 Jul 2026 14:00:50 GMT
Content-type text/html
Content-length 5726
Last-modified Fri, 06 Feb 2026 12:11:00 GMT
Etag "6985da54-165e"
Accept-ranges bytes
