Yarn, the modern JavaScript package manager
cherrypy.dev
Paid content
Categories: Development
Website Overview
Several search or sharing settings need attention. Together they may make snippets, preview images or preferred URLs less consistent across platforms. 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
Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The domain has about 5 years of registration history; its current configuration provides more context than age alone. The registrar is Namecheap Inc., a widely used domain service provider. The domain uses the common .dev 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 improvmx.com email service. DNSSEC is enabled, allowing validating resolvers to authenticate signed DNS data. No CNAME was found; the observed records resolve directly to addresses.
TLS and Certificates
The certificate uses an RSA 2048-bit public key, offering broad client compatibility. 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 by Let's Encrypt, commonly associated with automated certificate services. The certificate's total validity is about 89 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. 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 x-cache, x-served-by, via 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 Fastly without precise versions, leaving fewer clues for version-specific scanning.
Search and Social Sharing
No homepage meta description was detected, leaving snippet selection more dependent on page text. No homepage canonical URL was detected. If duplicate URLs exist, consolidation may be less explicit. No Open Graph metadata was detected, so social previews may depend on platform inference. The title has 44 characters, within a common display range. The observed directives allow indexing and link following.
Hosting and Email
Pages, Search and Sharing
| Meta description | Not detected |
|---|---|
| Canonical URL | Not detected |
| Language | English (default) |
| Twitter Card | Not detected |
Unknown
robots.txt (opens in a new tab)
HTTP 404No robots.txt found
Sitemaps
0No sitemaps found
Registration details RDAP / WHOIS
| Registrar | Namecheap Inc. |
|---|---|
| Registered | 2021-09-04 |
| Expires | 2032-09-04 |
| Domain status | client transfer prohibited |
| Nameservers | amber.ns.cloudflare.com、clyde.ns.cloudflare.com |
| DNSSEC | signed |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | cherrypy.dev | 185.199.108.153 | 300 | — |
| A | cherrypy.dev | 185.199.109.153 | 300 | — |
| A | cherrypy.dev | 185.199.110.153 | 300 | — |
| A | cherrypy.dev | 185.199.111.153 | 300 | — |
| AAAA | cherrypy.dev | 2606:50c0:8000::153 | 300 | — |
| AAAA | cherrypy.dev | 2606:50c0:8001::153 | 300 | — |
| AAAA | cherrypy.dev | 2606:50c0:8002::153 | 300 | — |
| AAAA | cherrypy.dev | 2606:50c0:8003::153 | 300 | — |
| MX | cherrypy.dev | mx1.improvmx.com | 300 | 10 |
| MX | cherrypy.dev | mx2.improvmx.com | 300 | 20 |
| NS | cherrypy.dev | amber.ns.cloudflare.com | 86400 | — |
| NS | cherrypy.dev | clyde.ns.cloudflare.com | 86400 | — |
| TXT | cherrypy.dev | v=spf1 mx include:spf.improvmx.com include:_spf.google.com -all | 300 | — |
| DS | cherrypy.dev | 2371 13 2 65eef32740791df9c7ebf706a94c16de1c494bca1e7339cc0ea38209e51ccd77 | 1800 | — |
TLS and certificates
| Assessment | Normal configuration |
|---|---|
| Supported protocols | TLSv1.2、TLSv1.3 |
| Negotiated protocol | TLSv1.3 |
| Certificate subject | cherrypy.dev |
| Issuer | Let's Encrypt |
| Valid until | 2026-11-19T21:49 · Remaining when checked: 79 days |
| Verification details | Certificate trust: Passed · Hostname match: Passed |
HTTP response headers
| Header | Value |
|---|---|
| content-type | text/html; charset=utf-8 |
| cache-control | max-age=600 |
| server | GitHub.com |
| access-control-allow-origin | * |
Identified technologies
Recent Updates
- Website Description
- Website images
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