Überprüfungsergebnisse für: roundcube.net
Zusätzliche Informationen für https://roundcube.net
Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 104.21.3.227 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| 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. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 104.21.3.227
Server Software cloudflare
CDN Cloudflare
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.
Performance
| DNS Lookup | 22.8 ms |
| TCP Connect | 24.5 ms |
| TLS Handshake | 7.3 ms |
| Time To First Byte (TTFB) | 288.7 ms |
| Content Download | 0.2 ms |
| Total Response Time | 288.9 ms |
DNS Lookup 22.8 ms
TCP Connect 24.5 ms
TLS Handshake 7.3 ms
Time To First Byte (TTFB) 288.7 ms
Content Download 0.2 ms
Total Response Time 288.9 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | same-origin |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
Referrer Policy same-origin
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Roundcube - Free and Open Source Webmail Software |
| Meta Description | Free and open source webmail software for the masses, written in PHP |
| Canonical | https://roundcube.net/ |
| Robots Meta | index,follow |
Title Roundcube - Free and Open Source Webmail Software
Meta Description Free and open source webmail software for the masses, written in PHP
Canonical https://roundcube.net/
Robots Meta index,follow
Detected Technologies
| Technology | Bootstrap Google Analytics Cloudflare |
Technology Bootstrap Google Analytics Cloudflare
HTTP Headers
| Date
| Wed, 26 Aug 2026 01:33:39 GMT |
| Content-type
| text/html; charset=utf-8 |
| Server
| cloudflare |
| Last-modified
| Sun, 23 Aug 2026 08:56:52 GMT |
| Vary
| Accept-Encoding |
| Access-control-allow-origin
| * |
| X-frame-options
| SAMEORIGIN |
| Expires
| Tue, 25 Aug 2026 04:07:38 GMT |
| Cache-control
| max-age=600 |
| X-xss-protection
| 1; mode=block |
| X-proxy-cache
| HIT |
| X-github-request-id
| 34FB:CB54:10E2AF0:12BC28D:6A8E4273 |
| X-github-edge-region
| iad |
| Cf-cache-status
| DYNAMIC |
| Report-to
| {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=PfR7YKUCB8isaOprPZDEdEE3HZw5E4wUrMzHW9lBf6QVxU7ceLDm0Wp%2BdQunhsQqNIj4tWJ%2B9mFRPV%2F9N%2F16UAF8fBsvbPMG2nYpTGk9jMDL6n0%2BLr8RpINOyKvTNBkCxDqLqzEdDEW9JqOn"}]} |
| Nel
| {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} |
| Expect-ct
| max-age=86400, enforce |
| Referrer-policy
| same-origin |
| X-content-type-options
| nosniff |
| Content-encoding
| gzip |
| Cf-ray
| a30f16f2ccd9d6e2-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Content-type | text/html; charset=UTF-8 |
| Viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| Keywords | round,cube,roundcube,webmail,email,mail,client,software,solution,application,imap,php,open source,free,github,development |
| Description | Free and open source webmail software for the masses, written in PHP |
| Author | hello [at] roundcube dot net |
| Copyright | Roundcube Webmail Dev Team |
| Robots | index,follow |
| Revisit-after | 7 days |
| Theme-color | #343a40 |
| Msapplication-navbutton-color | #343a40 |
Date Wed, 26 Aug 2026 01:33:39 GMT
Content-type text/html; charset=utf-8
Server cloudflare
Last-modified Sun, 23 Aug 2026 08:56:52 GMT
Vary Accept-Encoding
Access-control-allow-origin *
X-frame-options SAMEORIGIN
Expires Tue, 25 Aug 2026 04:07:38 GMT
Cache-control max-age=600
X-xss-protection 1; mode=block
X-proxy-cache HIT
X-github-request-id 34FB:CB54:10E2AF0:12BC28D:6A8E4273
X-github-edge-region iad
Cf-cache-status DYNAMIC
Report-to {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=PfR7YKUCB8isaOprPZDEdEE3HZw5E4wUrMzHW9lBf6QVxU7ceLDm0Wp%2BdQunhsQqNIj4tWJ%2B9mFRPV%2F9N%2F16UAF8fBsvbPMG2nYpTGk9jMDL6n0%2BLr8RpINOyKvTNBkCxDqLqzEdDEW9JqOn"}]}
Nel {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Expect-ct max-age=86400, enforce
Referrer-policy same-origin
X-content-type-options nosniff
Content-encoding gzip
Cf-ray a30f16f2ccd9d6e2-CDG
Alt-svc h3=":443"; ma=86400
Content-type text/html; charset=UTF-8
Viewport width=device-width, initial-scale=1, shrink-to-fit=no
Keywords round,cube,roundcube,webmail,email,mail,client,software,solution,application,imap,php,open source,free,github,development
Description Free and open source webmail software for the masses, written in PHP
Author hello [at] roundcube dot net
Copyright Roundcube Webmail Dev Team
Robots index,follow
Revisit-after 7 days
Theme-color #343a40
Msapplication-navbutton-color #343a40
