Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 173.255.221.194 |
| Server Software | nginx |
| Compression | gzip |
|
ℹ 🔵 Missing HSTS | HTTP Strict Transport Security is not configured. Recommended for HTTPS sites. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 173.255.221.194
Server Software nginx
Compression gzip
ℹ 🔵 Missing HSTS HTTP Strict Transport Security is not configured. Recommended for HTTPS sites.
Performance
| DNS Lookup | 108.1 ms |
| TCP Connect | 250 ms |
| TLS Handshake | 146.3 ms |
| Time To First Byte (TTFB) | 555.2 ms |
| Content Download | 142.1 ms |
| Total Response Time | 697.3 ms |
DNS Lookup 108.1 ms
TCP Connect 250 ms
TLS Handshake 146.3 ms
Time To First Byte (TTFB) 555.2 ms
Content Download 142.1 ms
Total Response Time 697.3 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ✔ Configured |
| X-Frame-Options | ✔ DENY |
| X-Content-Type-Options | ⚠ Not configured |
| Permissions Policy | ✔ Configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ✔ Configured
X-Frame-Options ✔ DENY
X-Content-Type-Options ⚠ Not configured
Permissions Policy ✔ Configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Groups.io | Email Discussion Groups & Listserv Alternative |
| Meta Description | Groups.io is a modern email group service and listserv alternative with no ads. Create mailing lists with calendars, files, wikis, and more. Better than Google Groups or Yahoo Groups. |
Title Groups.io | Email Discussion Groups & Listserv Alternative
Meta Description Groups.io is a modern email group service and listserv alternative with no ads. Create mailing lists with calendars, files, wikis, and more. Better than Google Groups or Yahoo Groups.
Detected Technologies
| Technology | jQuery Google Analytics Google Tag Manager Nginx |
Technology jQuery Google Analytics Google Tag Manager Nginx
HTTP Headers
| Server
| nginx |
| Date
| Thu, 20 Aug 2026 12:43:59 GMT |
| Content-type
| text/html; charset=utf-8 |
| Accept-ch
| Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Full-Version-List |
| Content-encoding
| gzip |
| Content-security-policy
| frame-ancestors 'self'; |
| Critical-ch
| Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version |
| Permissions-policy
| ch-ua-platform=(self), ch-ua-platform-version=(self), ch-ua-mobile=(self), ch-ua-model=(self), ch-ua-full-version-list=(self) |
| Vary
| Accept-Encoding |
| X-frame-options
| DENY |
Meta Tags
| Content-Type | text/html;charset=UTF-8 |
| X-UA-Compatible | IE=edge |
| Viewport | width=device-width, initial-scale=1.0, viewport-fit=cover |
| Theme-color | #2f6fa7 |
| Pinterest | nohover |
| 3778517eb4810dfb5d143ed8f1b359b3b5a82923 | 0f56257c3db4a222e91b11bc6871c4df2e263b28 |
| Msapplication-TileColor | #ffffff |
| Msapplication-TileImage |  |
| Description | Groups.io is a modern email group service and listserv alternative with no ads. Create mailing lists with calendars, files, wikis, and more. Better than Google Groups or Yahoo Groups. |
Server nginx
Date Thu, 20 Aug 2026 12:43:59 GMT
Content-type text/html; charset=utf-8
Accept-ch Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Full-Version-List
Content-encoding gzip
Content-security-policy frame-ancestors 'self';
Critical-ch Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
Permissions-policy ch-ua-platform=(self), ch-ua-platform-version=(self), ch-ua-mobile=(self), ch-ua-model=(self), ch-ua-full-version-list=(self)
Vary Accept-Encoding
X-frame-options DENY
