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Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, J…
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flexible.gs
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Categories: Development
Flexible.gs is a lightweight, intuitive, and highly adaptable CSS grid system designed for building responsive web applications with ease and speed.
Updated: 2026-09-03 17:03
Language: English (default)
Access: Normal
Profile views 10
Outbound visits 7
Website Overview
Page metadata, canonical configuration and social previews work together to provide more consistent search and sharing presentation. An active inbound-mail setup with incomplete authentication may leave the domain more open to impersonation. Provider hosting alone does not close that gap.
Domain and Registration
The domain has about 1 years of registration history; its current configuration provides more context than age alone. The domain uses the common .gs extension, which is not an independent safety signal.
DNS and Email
The observed email authentication setup is incomplete: DMARC is missing. Nameservers are provided by Cloudflare, indicating managed DNS hosting. MX records point to the Cloudflare Email Routing email service. No CNAME was found; the observed records resolve directly to addresses. DNSSEC signatures were not detected, so this additional DNS authenticity protection is not confirmed.
TLS and Certificates
The public key uses EC with 256 bits. The server supplied a complete certificate chain. No organization name is present in the certificate; the available fields are consistent with domain validation. The certificate was issued within the Google Trust Services cloud or CDN ecosystem. The certificate's total validity is about 90 days, consistent with a short renewal cycle.
HTTP and Browser Security
The checked browser-security headers were not detected, leaving fewer explicit browser-side safeguards. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The cf-ray response header indicates a CDN or caching proxy in the delivery path. No obvious internal addresses or debug information were found in the headers. The Server header identifies cloudflare without an exact version.
Technology Stack Analysis
The public page identifies Cloudflare without precise versions, leaving fewer clues for version-specific scanning.
Search and Social Sharing
Twitter Card metadata is configured. The title has 22 characters, within a common display range. A meta description is present, with 148 characters. The observed directives allow indexing and link following. No Generator meta tag is publicly exposed.
Hosting and Email
Location
Location unknown
104.21.84.98
Location unknown
Pages, Search and Sharing
| Meta description | Flexible.gs is a lightweight, intuitive, and highly adaptable CSS grid system designed for building responsive web applications with ease and speed. |
|---|---|
| Canonical URL | https://flexible.gs/ |
| Language | English (default) |
| Twitter Card | summary_large_image |
Social Sharing Preview
9 fieldsSharing metadata
| og:url | http://flexible.gs/ |
|---|---|
| og:type | website |
| og:image | http://flexible.gs/static/images/flexible_gs_og_default.png |
| og:title | Flexible.gs - Responsive CSS Grid System |
| og:description | Flexible.gs is a lightweight, intuitive, and highly adaptable CSS grid system. |
| twitter:card | summary_large_image |
| twitter:image | http://flexible.gs/static/images/flexible_gs_twitter_default.png |
| twitter:title | Flexible.gs - Responsive CSS Grid System |
| twitter:description | Flexible.gs: A lightweight, adaptable CSS grid for modern web development. |
robots.txt (opens in a new tab)
0 rulesNo rules found
No matching rules.
Sitemaps
0No sitemaps found
Registration details RDAP / WHOIS
| Registrar | 269 |
|---|---|
| Registered | 2025-05-05 |
| Expires | 2027-05-05 |
| Domain status | active |
| Nameservers | clara.ns.cloudflare.com、igor.ns.cloudflare.com |
| DNSSEC | unsigned |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | flexible.gs | 104.21.84.98 | 300 | — |
| A | flexible.gs | 172.67.191.11 | 300 | — |
| AAAA | flexible.gs | 2606:4700:3031::ac43:bf0b | 300 | — |
| AAAA | flexible.gs | 2606:4700:3034::6815:5462 | 300 | — |
| MX | flexible.gs | route3.mx.cloudflare.net | 300 | 13 |
| MX | flexible.gs | route2.mx.cloudflare.net | 300 | 63 |
| MX | flexible.gs | route1.mx.cloudflare.net | 300 | 95 |
| NS | flexible.gs | clara.ns.cloudflare.com | 86400 | — |
| NS | flexible.gs | igor.ns.cloudflare.com | 86400 | — |
| TXT | flexible.gs | v=spf1 include:_spf.mx.cloudflare.net ~all | 300 | — |
TLS and certificates
| Assessment | Normal configuration |
|---|---|
| Supported protocols | TLSv1.2、TLSv1.3 |
| Negotiated protocol | TLSv1.3 |
| Certificate subject | flexible.gs |
| Issuer | Google Trust Services |
| Valid until | 2026-10-05T01:10 · Remaining when checked: 31 days |
| Verification details | Certificate trust: Passed · Hostname match: Passed |
HTTP response headers
| Header | Value |
|---|---|
| content-type | text/html; charset=utf-8 |
| server | cloudflare |
Identified technologies
Cloudflare
Recent Updates
- Website images
- Website images
- Screenshots
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