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commonmark.org

Development
No paid content found
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Profile views 4 Outbound visits 2 Normal
CommonMark Full homepage screenshot

At a glance

Category
Development
Language
English
Paid-content signal
No paid content foundObserved
Registered
2014
Hosting
FastlyInferred
HTTPS certificate trusted
PassedObserved
Last updated

Related questions

More questions →
What is commonmark.org?
Unknown.
Does commonmark.org offer paid content?
Unknown.
What languages does commonmark.org support?
Primary language: English.
How can I visit commonmark.org?
Use the Visit website link to open the website in a new tab.
What are some alternatives to commonmark.org?
Related websites include zustand.docs.pmnd.rs, zustand-demo.pmnd.rs, zulko.github.io, zitadel.com, zipkin.io, zip-codes.com. Compare their features and pricing for your needs.

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 2014, this domain has about 12 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 registrar is NameCheap, Inc., a widely used domain service provider. The domain uses the common .org 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 Namecheap, indicating managed DNS hosting. MX records point to the registrar-servers.com email service. No CNAME was found; the observed records resolve directly to addresses. 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 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 10 characters, within a common display range. The observed directives allow indexing and link following.

Hosting and Email
DNSNamecheap
HostingFastly
Emailregistrar-servers.com
Approximate IP geolocation (inferred; a CDN or proxy may differ from the origin server) United States flagUnited States Inferred 185.199.108.153

Registration details

RDAP / WHOIS

RegistrarNameCheap, Inc.
Registered2014-09-05
Expires2027-09-05
Domain statusclient transfer prohibited
Nameserversdns1.registrar-servers.com、dns2.registrar-servers.com
DNSSECunsigned

DNS records

DNS

TypeNameValueTTLPriority
Acommonmark.org185.199.108.1531799—
Acommonmark.org185.199.109.1531799—
Acommonmark.org185.199.110.1531799—
Acommonmark.org185.199.111.1531799—
MXcommonmark.orgeforward1.registrar-servers.com180010
MXcommonmark.orgeforward2.registrar-servers.com180010
MXcommonmark.orgeforward3.registrar-servers.com180010
MXcommonmark.orgeforward4.registrar-servers.com180015
MXcommonmark.orgeforward5.registrar-servers.com180020
NScommonmark.orgdns1.registrar-servers.com1800—
NScommonmark.orgdns2.registrar-servers.com1800—
TXTcommonmark.orgv=spf1 include:spf.efwd.registrar-servers.com ~all1800—
TXTcommonmark.orgv=spf1 include:spf.mandrillapp.com ?all1800—

TLS and certificates

TLS / SSL

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectcommonmark.org
IssuerLet's Encrypt
Valid until2026-11-28T01:34 · Remaining when checked: 63 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HTTP

HeaderValue
content-typetext/html; charset=utf-8
cache-controlmax-age=600
serverGitHub.com
access-control-allow-origin*

Identified technologies
Fastly

Pages, Search and Sharing
Meta descriptionNot detected
Canonical URLNot detected
LanguageEnglish (default)
Twitter CardNot detected

Social Sharing Preview

Unknown

robots.txt (opens in a new tab)

HTTP 404

No robots.txt found

Sitemaps

0

No sitemaps found

Recent Updates

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