Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 185.67.36.169 |
| Server Software | Apache |
| Compression | gzip |
|
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 185.67.36.169
Server Software Apache
Compression gzip
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://posteo.de:443 | 302 | HTTP/1.1 302 Found |
| 2 | https://posteo.de/en | 200 | HTTP/1.1 200 OK |
#1 URL https://posteo.de:443
HTTP Status Code 302
Status HTTP/1.1 302 Found
#2 URL https://posteo.de/en
HTTP Status Code 200
Status HTTP/1.1 200 OK
Performance
| DNS Lookup | 2.9 ms |
| TCP Connect | 12.4 ms |
| TLS Handshake | 16.6 ms |
| Time To First Byte (TTFB) | 50.6 ms |
| Content Download | 11 ms |
| Total Response Time | 61.6 ms |
DNS Lookup 2.9 ms
TCP Connect 12.4 ms
TLS Handshake 16.6 ms
Time To First Byte (TTFB) 50.6 ms
Content Download 11 ms
Total Response Time 61.6 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31536000; includeSubDomains; preload |
| CSP | ✔ Configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | no-referrer |
| Permissions Policy | ✔ Configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31536000; includeSubDomains; preload
CSP ✔ Configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ✔ nosniff
Referrer Policy no-referrer
Permissions Policy ✔ Configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Email green, secure, simple and ad-free - posteo.de - |
| Meta Description | Posteo is an innovative email provider that is concerned with sustainability and privacy and is completely ad-free. Our email accounts, calendars and address books can be synchronised - we use comprehensive encryption. |
Title Email green, secure, simple and ad-free - posteo.de -
Meta Description Posteo is an innovative email provider that is concerned with sustainability and privacy and is completely ad-free. Our email accounts, calendars and address books can be synchronised - we use comprehensive encryption.
Detected Technologies
| Technology | Google Analytics Apache |
Technology Google Analytics Apache
HTTP Headers
| Date
| Thu, 23 Jul 2026 10:38:19 GMT |
| Server
| Apache |
| Referrer-policy
| no-referrer |
| Vary
| Accept-Encoding |
| Last-modified
| Thu, 23 Jul 2026 06:14:15 GMT |
| Etag
| "43fa-657412a6335e4" |
| Accept-ranges
| bytes |
| Content-length
| 17402 |
| X-content-type-options
| nosniff |
| X-dns-prefetch-control
| off |
| Content-security-policy
| connect-src https://api.posteo.de https://payment.posteo.de https://cdn.posteo.de wss://posteo.de 'self'; child-src 'self'; font-src 'self' data:; form-action https://www.paypal.com https://hooks.stripe.com 'self' data:; frame-ancestors 'self'; frame-src 'self' blob:; img-src data: *; manifest-src 'self'; media-src 'self' https://cdn.posteo.de; object-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-eval' 'unsafe-inline'; default-src 'none'; reflected-xss block; referrer no-referrer; |
| Permissions-policy
| accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), camera=(), cross-origin-isolated=(), display-capture=(), document-domain=(), encrypted-media=(), execution-while-not-rendered=(), execution-while-out-of-viewport=(), fullscreen=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), midi=(), navigation-override=(), payment=(), picture-in-picture=(), screen-wake-lock=(), sync-xhr=(), usb=(), web-share=(), xr-spatial-tracking=() |
| Content-encoding
| gzip |
| Cache-control
| max-age=0, must-revalidate |
| Content-type
| text/html |
| Strict-transport-security
| max-age=31536000; includeSubDomains; preload |
Meta Tags
| Viewport | width=device-width, initial-scale=1.0 |
| Keywords | Email, webmail, green energy, Green Planet Energy, Privacy, IMAP, Account, Ad-free |
| Description | Posteo is an innovative email provider that is concerned with sustainability and privacy and is completely ad-free. Our email accounts, calendars and address books can be synchronised - we use comprehensive encryption. |
| Msapplication-TileColor | #a9d158 |
| Msapplication-config | /browserconfig.xml |
| Apple-mobile-web-app-capable | yes |
| Apple-mobile-web-app-status-bar-style | black |
| Apple-mobile-web-app-title | Posteo |
Date Thu, 23 Jul 2026 10:38:19 GMT
Server Apache
Referrer-policy no-referrer
Vary Accept-Encoding
Last-modified Thu, 23 Jul 2026 06:14:15 GMT
Etag "43fa-657412a6335e4"
Accept-ranges bytes
Content-length 17402
X-content-type-options nosniff
X-dns-prefetch-control off
Content-security-policy connect-src https://api.posteo.de https://payment.posteo.de https://cdn.posteo.de wss://posteo.de 'self'; child-src 'self'; font-src 'self' data:; form-action https://www.paypal.com https://hooks.stripe.com 'self' data:; frame-ancestors 'self'; frame-src 'self' blob:; img-src data: *; manifest-src 'self'; media-src 'self' https://cdn.posteo.de; object-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-eval' 'unsafe-inline'; default-src 'none'; reflected-xss block; referrer no-referrer;
Permissions-policy accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), camera=(), cross-origin-isolated=(), display-capture=(), document-domain=(), encrypted-media=(), execution-while-not-rendered=(), execution-while-out-of-viewport=(), fullscreen=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), midi=(), navigation-override=(), payment=(), picture-in-picture=(), screen-wake-lock=(), sync-xhr=(), usb=(), web-share=(), xr-spatial-tracking=()
Content-encoding gzip
Cache-control max-age=0, must-revalidate
Content-type text/html
Strict-transport-security max-age=31536000; includeSubDomains; preload
