简体中文containers.dev
Development containers documentation and specification page.
At a glance
- Category
- Development
- Language
- English
- Paid-content signal
- Paid contentObserved
- Registered
- 2022
- Hosting
- FastlyInferred
- HTTPS certificate trusted
- PassedObserved
- Last updated
Related questions
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Website Overview
Several search or sharing settings need attention. Together they may make snippets, preview images or preferred URLs less consistent across platforms.
Domain and Registration
Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The domain has about 4 years of registration history; its current configuration provides more context than age alone. The domain uses the common .dev extension, which is not an independent safety signal.
DNS and Email
Nameservers are provided by Azure DNS, indicating managed DNS hosting. CAA records restrict which certificate authorities are authorized to issue certificates. No CNAME was found; the observed records resolve directly to addresses. No MX record was found. A conventional explicit inbound-mail route is not configured. DNSSEC signatures were not detected, so this additional DNS authenticity protection is not confirmed.
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 Bootstrap, Fastly without precise versions, leaving fewer clues for version-specific scanning.
Search and Social Sharing
The canonical URL points to another host: https://devcontainers.github.io/. Search engines may consolidate indexing signals there. No Open Graph metadata was detected, so social previews may depend on platform inference. The title has 22 characters, within a common display range. A meta description is present, with 60 characters. The observed directives allow indexing and link following.
Hosting and Email
Azure DNS
Fastly
United States
Inferred
185.199.108.153
Registration details
| Registrar | Lexsynergy Limited |
|---|---|
| Registered | 2022-03-25 |
| Expires | 2027-03-25 |
| Domain status | client delete prohibited、client transfer prohibited、client update prohibited |
| Nameservers | ns1-34.azure-dns.com、ns2-34.azure-dns.net、ns3-34.azure-dns.org、ns4-34.azure-dns.info |
| DNSSEC | unsigned |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | containers.dev | 185.199.108.153 | 1001 | — |
| A | containers.dev | 185.199.109.153 | 1001 | — |
| A | containers.dev | 185.199.110.153 | 1001 | — |
| A | containers.dev | 185.199.111.153 | 1001 | — |
| NS | containers.dev | ns1-34.azure-dns.com | 172800 | — |
| NS | containers.dev | ns2-34.azure-dns.net | 172800 | — |
| NS | containers.dev | ns3-34.azure-dns.org | 172800 | — |
| NS | containers.dev | ns4-34.azure-dns.info | 172800 | — |
| CAA | containers.dev | 0 contactemail "[email protected]" | 3600 | — |
| CAA | containers.dev | 0 iodef "mailto:[email protected]" | 3600 | — |
| DMARC | _dmarc.containers.dev | v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1 | 3600 | — |
TLS and certificates
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
Pages, Search and Sharing
| Meta description | Development containers documentation and specification page. |
|---|---|
| Canonical URL | https://devcontainers.github.io/ |
| Language | English (default) |
| Twitter Card | Not detected |
Unknown
robots.txt (opens in a new tab)
HTTP 404No robots.txt found
Sitemaps
0No sitemaps found
Recent Updates
- Website images
- Screenshots
- Network details
- Website Technologies
- Pages and Search Information
- HTTP Response Information
- TLS and certificates
- DNS Information
- Domain Registration
- Website profile
- Website Description
- Website Name
- Website profile
- Website Description
- Website Name
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