简体中文
English
ctan.org
At a glance
- Category
- Development
- Language
- English
- Paid-content signal
- No paid content foundObserved
- Registered
- 1998
- Hosting
- netcup GmbHInferred
- HTTPS certificate trusted
- PassedObserved
- Last updated
Related questions
More questions →What is ctan.org?
Does ctan.org offer paid content?
What languages does ctan.org support?
How can I visit ctan.org?
What are some alternatives to ctan.org?
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 1998, this domain has about 28 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
Nameservers are provided by tug.org, indicating managed DNS hosting. MX records point to the dante.de email service. No CNAME was found; the observed records resolve directly to addresses. SPF and DMARC are configured. DKIM status is unknown. 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 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: CSP, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, clickjacking protection. 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. Cookie security attributes are unknown.
Technology Stack Analysis
The public page identifies 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. 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 page declares 3 language or regional alternatives using hreflang. The title has 39 characters, within a common display range.
Hosting and Email
Nuremberg, Bavaria, Germany
Inferred
202.61.224.132
Registration details
| Registrar | DNC Holdings, Inc. |
|---|---|
| Registered | 1998-03-11 |
| Expires | 2029-03-10 |
| Domain status | client delete prohibited、client transfer prohibited、client update prohibited |
| Nameservers | ns1.tug.org、ns2.tug.org、tragedy.dante.de |
| DNSSEC | unsigned |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | ctan.org | 202.61.224.132 | 14400 | — |
| AAAA | ctan.org | 2a03:4000:56:120::1 | 14400 | — |
| MX | ctan.org | irony.dante.de | 14400 | 10 |
| NS | ctan.org | ns1.tug.org | 14400 | — |
| NS | ctan.org | ns2.tug.org | 14400 | — |
| NS | ctan.org | tragedy.dante.de | 14400 | — |
| TXT | ctan.org | google-site-verification=9S_RyjfPcn9W3kYwDDrU7BswRhDytfyD4R_736raDso | 14400 | — |
| TXT | ctan.org | v=spf1 mx ~all | 14400 | — |
| DMARC | _dmarc.ctan.org | v=DMARC1; p=none | 14400 | — |
TLS and certificates
HTTP response headers
| Header | Value |
|---|---|
| content-type | text/html;charset=utf-8 |
| content-language | en |
| cache-control | no-cache, no-store |
| server | Apache |
| strict-transport-security | max-age=63072000; includeSubDomains; preload |
| set-cookie | Redacted |
Identified technologies
Pages, Search and Sharing
| Meta description | Not detected |
|---|---|
| Canonical URL | Not detected |
| Language | English (default) · Multilingual |
| Twitter Card | Not detected |
Unknown
robots.txt (opens in a new tab)
7 rulesAll bots 0 allowed · 7 disallowed
- Disallow
/json/ - Disallow
/xml/ - Disallow
/admin/ - Disallow
/error/ - Disallow
/mirrors/mirmon/ - Disallow
/ctan-portal/ - Disallow
/search
No matching rules.
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 Name
- Website profile
- Website Description
- Website Name
User reviews (0)