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Categories: Artificial Intelligence

Tags: Open SourceJanCustomizable IntelligenceLLMlocal AIprivacy focusfree and open sourceprivate and offlineconversational AIno-subscription fee
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large language modelsarchitecture

Jan is an open-source alternative to ChatGPT. Run open-source AI models locally or connect to cloud models like GPT, Claude and others.

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Updated: 2026-09-03 16:43 Language: English (default) Access: Normal

Profile views 11 Outbound visits 7
Jan Full homepage screenshot

Website Overview

An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality.

Domain and Registration

Registered in 2017, this domain has about 8 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. Registration contact information is publicly available through RDAP. The domain uses the common .ai extension, which is not an independent safety signal.

DNS and Email

Nameservers are provided by Cloudflare, indicating managed DNS hosting. MX records point to the Google Workspace 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, Microsoft. 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 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 response lacks these common security headers: CSP. 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 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.

Technology Stack Analysis

The public page identifies Cloudflare without precise versions, leaving fewer clues for version-specific scanning.

Search and Social Sharing

The canonical URL points to another host: https://jan.ai. Search engines may consolidate indexing signals there. Twitter Card metadata is configured. JSON-LD includes Organization data, helping describe the organization as an entity. The title has 37 characters, within a common display range. A meta description is present, with 135 characters.

Hosting and Email

DNSCloudflare
HostingCloudflare
EmailGoogle Workspace
Location Location unknown 104.26.2.30

Pages, Search and Sharing

Meta descriptionJan is an open-source alternative to ChatGPT. Run open-source AI models locally or connect to cloud models like GPT, Claude and others.
Canonical URLhttps://jan.ai
LanguageEnglish (default)
Twitter Cardsummary_large_image

Social Sharing Preview

7 fields

robots.txt (opens in a new tab)

1 rules
All bots 1 allowed · 0 disallowed
  • Allow/

Sitemaps

1

Registration details RDAP / WHOIS

Registrar101domain GRS Limited
Registered2017-12-16
Expires2027-01-24
Domain statusclient transfer prohibited
Nameserversfinley.ns.cloudflare.com、kia.ns.cloudflare.com
DNSSECunsigned

DNS records

TypeNameValueTTLPriority
Awww.jan.ai104.26.2.30300—
Awww.jan.ai104.26.3.30300—
Awww.jan.ai172.67.73.113300—
AAAAwww.jan.ai2606:4700:20::681a:21e300—
AAAAwww.jan.ai2606:4700:20::681a:31e300—
AAAAwww.jan.ai2606:4700:20::ac43:4971300—
MXjan.aiaspmx.l.google.com36001
MXjan.aialt1.aspmx.l.google.com36005
MXjan.aialt2.aspmx.l.google.com36005
MXjan.aialt3.aspmx.l.google.com360010
MXjan.aialt4.aspmx.l.google.com360010
NSjan.aifinley.ns.cloudflare.com86400—
NSjan.aikia.ns.cloudflare.com86400—
TXTjan.aiMS=ms79565102300—
TXTjan.aibrevo-code:accb088377fd61d2dfbe227d5096e002300—
TXTjan.aigoogle-site-verification=KZ8Q1vq-_oYkDLD3TsqIJB4mJYXZyHk41lNWt4YxVCE300—
TXTjan.aigoogle-site-verification=O-vtx0-DRA0jxGFDDzJy7e4eDX2QijDk901HHvX30ZU300—
TXTjan.aiv=spf1 include:_spf.google.com ~all300—
DMARC_dmarc.jan.aiv=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; sp=none300—

TLS and certificates

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectwww.jan.ai
IssuerGoogle Trust Services
Valid until2026-10-14T05:42 · Remaining when checked: 42 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HeaderValue
content-typetext/html; charset=utf-8
cache-controlpublic, max-age=0, must-revalidate
servercloudflare
strict-transport-securitymax-age=31536000; includeSubDomains; preload
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policystrict-origin-when-cross-origin
permissions-policyinterest-cohort=()
access-control-allow-origin*

Identified technologies

Cloudflare

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