简体中文
Englishalex.smola.org
At a glance
- Category
- Science & Research
- Language
- English
- Paid-content signal
- No paid content foundObserved
- Registered
- 2008
- Hosting
- CloudflareInferred
- 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. 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 2008, this domain has about 18 years of history. That suggests continuity, although ownership and purpose may have changed. Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The domain uses the common .org extension, which is not an independent safety signal.
DNS and Email
MX records exist, but SPF, DKIM and DMARC were not detected. Protection against domain impersonation may be incomplete. Nameservers are provided by Cloudflare, indicating managed DNS hosting. MX records point to the Google Workspace 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 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 quarto-1.7.29, Google Analytics, Cloudflare 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 quarto-1.7.29, making the publishing system easier to fingerprint. 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 10 characters, within a common display range.
Hosting and Email
Cloudflare
Google WorkspaceRegistration details
| Registrar | CSL Computer Service Langenbach GmbH d/b/a joker.com |
|---|---|
| Registered | 2008-02-04 |
| Expires | 2028-02-04 |
| Domain status | client transfer prohibited |
| Nameservers | dan.ns.cloudflare.com、uma.ns.cloudflare.com |
| DNSSEC | signed |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | alex.smola.org | 104.21.12.135 | 300 | — |
| A | alex.smola.org | 172.67.132.40 | 300 | — |
| AAAA | alex.smola.org | 2606:4700:3033::ac43:8428 | 300 | — |
| AAAA | alex.smola.org | 2606:4700:3035::6815:c87 | 300 | — |
| MX | smola.org | aspmx.l.google.com | 300 | 1 |
| MX | smola.org | alt1.aspmx.l.google.com | 300 | 5 |
| MX | smola.org | alt2.aspmx.l.google.com | 300 | 5 |
| MX | smola.org | aspmx2.googlemail.com | 300 | 20 |
| MX | smola.org | aspmx3.googlemail.com | 300 | 20 |
| NS | smola.org | dan.ns.cloudflare.com | 86400 | — |
| NS | smola.org | uma.ns.cloudflare.com | 86400 | — |
| DS | smola.org | 2371 13 1 618d6fad2609dc357200a1a6c691609e19928f0b | 3600 | — |
| DS | smola.org | 2371 13 2 0bfb764f2c8821a57144f30f9edd53c07afa9417483808397ba3a175d855da76 | 3600 | — |
TLS and certificates
| Assessment | Normal configuration |
|---|---|
| Supported protocols | TLSv1.2、TLSv1.3 |
| Negotiated protocol | TLSv1.3 |
| Certificate subject | d52d4882.sni.cloudflaressl.com |
| Issuer | Google Trust Services |
| Valid until | 2026-11-02T17:58 · Remaining when checked: 34 days |
| Verification details | Certificate trust: Passed · Hostname match: Passed |
HTTP response headers
| Header | Value |
|---|---|
| content-type | text/html; charset=utf-8 |
| cache-control | public, max-age=300, must-revalidate |
| server | cloudflare |
Identified technologies
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)
0 rulesNo rules found
No matching rules.
Sitemaps
1Recent Updates
- Website images
- Screenshots
- Network details
- Website Technologies
- Pages and Search Information
- TLS and certificates
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