简体中文
sudburyvalley.org
At a glance
- Category
- Education & Learning
- Language
- English
- Paid-content signal
- No paid content foundObserved
- Registered
- 2001
- Hosting
- New Dream Network, LLCInferred
- HTTPS certificate trusted
- PassedObserved
- Last updated
Related questions
More questions →What is sudburyvalley.org?
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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. Several search or sharing settings need attention. Together they may make snippets, preview images or preferred URLs less consistent across platforms.
Domain and Registration
Registered in 2001, this domain has about 25 years of history. That suggests continuity, although ownership and purpose may have changed. The domain uses the common .org extension, which is not an independent safety signal.
DNS and Email
Nameservers are provided by powweb.com, indicating managed DNS hosting. MX records point to the Proton Mail email service. No CNAME was found; the observed records resolve directly to addresses. SPF and DMARC are configured. DKIM status is unknown. 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 response lacks these common security headers: HSTS, CSP, Referrer-Policy, Permissions-Policy. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. No obvious internal addresses or debug information were found in the headers. The Server header identifies Apache without an exact version. No explicit CDN or WAF marker was found in the response headers.
Technology Stack Analysis
The public page identifies Drupal 10 (https://www.drupal.org); Commerce 2, Drupal, Apache 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. The Generator tag identifies Drupal 10 (https://www.drupal.org); Commerce 2, making the publishing system easier to fingerprint. No Open Graph metadata was detected, so social previews may depend on platform inference. The title has 28 characters, within a common display range. The observed directives allow indexing and link following.
Hosting and Email
Proton Mail
Ashburn, Virginia, United States
Inferred
173.236.200.24
Registration details
| Registrar | Network Solutions, LLC |
|---|---|
| Registered | 2001-03-02 |
| Expires | 2031-03-02 |
| Domain status | active |
| Nameservers | ns1.powweb.com、ns2.powweb.com |
| DNSSEC | unsigned |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | sudburyvalley.org | 173.236.200.24 | 3600 | — |
| MX | sudburyvalley.org | mail.protonmail.ch | 1800 | 10 |
| MX | sudburyvalley.org | mailsec.protonmail.ch | 1800 | 20 |
| NS | sudburyvalley.org | ns1.powweb.com | 3600 | — |
| NS | sudburyvalley.org | ns2.powweb.com | 3600 | — |
| TXT | sudburyvalley.org | mailerlite-domain-verification=7f2c206968254b9d4205c2d91910b9be37b636c5 | 3600 | — |
| TXT | sudburyvalley.org | protonmail-verification=20f57111e82eb1cdef8e39e8aa31240edb331442 | 604800 | — |
| TXT | sudburyvalley.org | v=spf1 include:_spf.protonmail.ch include:_spf.mlsend.com ~all | 1800 | — |
| DMARC | _dmarc.sudburyvalley.org | v=DMARC1; p=quarantine | 1800 | — |
TLS and certificates
HTTP response headers
| Header | Value |
|---|---|
| content-type | text/html; charset=UTF-8 |
| content-language | en |
| cache-control | max-age=3600, public |
| server | Apache |
| x-frame-options | SAMEORIGIN |
| x-content-type-options | nosniff |
Identified technologies
Pages, Search and Sharing
| Meta description | Not detected |
|---|---|
| Canonical URL | https://sudburyvalley.org/ |
| Language | English (default) |
| Twitter Card | Not detected |
Unknown
robots.txt (opens in a new tab)
40 rulesAll bots 18 allowed · 22 disallowed
- Allow
/core/*.css$ - Allow
/core/*.css? - Allow
/core/*.js$ - Allow
/core/*.js? - Allow
/core/*.gif - Allow
/core/*.jpg - Allow
/core/*.jpeg - Allow
/core/*.png - Allow
/core/*.svg - Allow
/profiles/*.css$ - Allow
/profiles/*.css? - Allow
/profiles/*.js$ - Allow
/profiles/*.js? - Allow
/profiles/*.gif - Allow
/profiles/*.jpg - Allow
/profiles/*.jpeg - Allow
/profiles/*.png - Allow
/profiles/*.svg - Disallow
/core/ - Disallow
/profiles/ - Disallow
/README.txt - Disallow
/web.config - Disallow
/admin/ - Disallow
/comment/reply/ - Disallow
/filter/tips/ - Disallow
/node/add/ - Disallow
/search/ - Disallow
/user/register/ - Disallow
/user/password/ - Disallow
/user/login/ - Disallow
/user/logout/ - Disallow
/index.php/admin/ - Disallow
/index.php/comment/reply/ - Disallow
/index.php/filter/tips/ - Disallow
/index.php/node/add/ - Disallow
/index.php/search/ - Disallow
/index.php/user/password/ - Disallow
/index.php/user/register/ - Disallow
/index.php/user/login/ - Disallow
/index.php/user/logout/
No matching rules.
Sitemaps
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- Network details
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