responsively.app
A dev-tool that aids faster and precise responsive web development.
At a glance
- Category
- Development
- Language
- English
- Paid-content signal
- No paid content foundObserved
- Registered
- 2019
- Hosting
- VercelInferred
- HTTPS certificate trusted
- PassedObserved
- Last updated
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Website Overview
An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality. Page metadata, canonical configuration and social previews work together to provide more consistent search and sharing presentation.
Domain and Registration
Registered in 2019, this domain has about 7 years of history. That suggests continuity, although ownership and purpose may have changed. The registrar is Namecheap Inc., a widely used domain service provider. The domain uses the common .app 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 Google Workspace email service. No CNAME was found; the observed records resolve directly to addresses. TXT records include verification markers for Google. Such markers may also remain after a service stops being used.
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 response lacks these common security headers: CSP, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, clickjacking protection. CORS permits any origin to read this response. This is common for public resources; sensitive responses need narrower handling. 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.
Technology Stack Analysis
The public page identifies Next.js, Cloudflare, Vercel without precise versions, leaving fewer clues for version-specific scanning.
Search and Social Sharing
Twitter Card metadata is configured. The title has 44 characters, within a common display range. A meta description is present, with 67 characters. The observed directives allow indexing and link following. No Generator meta tag is publicly exposed.
Hosting and Email
Registration details
| Registrar | Namecheap Inc. |
|---|---|
| Registered | 2019-09-19 |
| Expires | 2027-09-19 |
| Domain status | active |
| Nameservers | dean.ns.cloudflare.com、karina.ns.cloudflare.com |
| DNSSEC | unsigned |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | responsively.app | 104.21.41.50 | 300 | — |
| A | responsively.app | 172.67.160.113 | 300 | — |
| AAAA | responsively.app | 2606:4700:3033::6815:2932 | 300 | — |
| AAAA | responsively.app | 2606:4700:3033::ac43:a071 | 300 | — |
| MX | responsively.app | aspmx.l.google.com | 3600 | 1 |
| MX | responsively.app | alt1.aspmx.l.google.com | 3600 | 5 |
| MX | responsively.app | alt2.aspmx.l.google.com | 3600 | 5 |
| MX | responsively.app | alt3.aspmx.l.google.com | 3600 | 10 |
| MX | responsively.app | alt4.aspmx.l.google.com | 3600 | 10 |
| NS | responsively.app | dean.ns.cloudflare.com | 86400 | — |
| NS | responsively.app | karina.ns.cloudflare.com | 86400 | — |
| TXT | responsively.app | brave-ledger-verification=bdbd66059dda3940f3ba808b943cc8e62fe342654e318ade375a22343d909f92 | 300 | — |
| TXT | responsively.app | google-site-verification=F42GdjMhlvQ66ICnuoMfsv_8Llx7w_idsmWkC8A49Jw | 300 | — |
| TXT | responsively.app | google-site-verification=VhRDtLoEd50MKR8r2pTTACW_-_lITe35M3CIMVDE6Jk | 300 | — |
| TXT | responsively.app | v=spf1 include:_spf.google.com -all | 300 | — |
TLS and certificates
HTTP response headers
| Header | Value |
|---|---|
| content-type | text/html; charset=utf-8 |
| cache-control | public, max-age=0, must-revalidate |
| server | cloudflare |
| strict-transport-security | max-age=63072000 |
| access-control-allow-origin | * |
Identified technologies
Pages, Search and Sharing
| Meta description | A dev-tool that aids faster and precise responsive web development. |
|---|---|
| Canonical URL | https://responsively.app/ |
| Language | English (default) |
| Twitter Card | summary_large_image |
Social Sharing Preview
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Sitemaps
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User reviews (0)