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chartjs.org
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Categories: Development
Simple yet flexible JavaScript charting library for the modern web
Updated: 2026-09-03 15:21
Language: English (default)
Access: Normal
Profile views 8
Outbound visits 6
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 2013, this domain has about 13 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 Cloudflare, Inc., a widely used domain service provider. The domain uses the common .org extension, which is not an independent safety signal.
DNS and Email
Nameservers are provided by Cloudflare, indicating managed DNS hosting. DNSSEC is enabled, allowing validating resolvers to authenticate signed DNS data. No CNAME was found; the observed records resolve directly to addresses. No MX record was found. A conventional explicit inbound-mail route is not configured. The lowest observed DNS TTL is 300 seconds.
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. 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, 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 Google Analytics, Cloudflare, Fastly without precise versions, leaving fewer clues for version-specific scanning.
Search and Social Sharing
No viewport meta tag was detected, which may affect mobile layout behavior. No homepage canonical URL was detected. If duplicate URLs exist, consolidation may be less explicit. The title has 52 characters, within a common display range. A meta description is present, with 66 characters. The observed directives allow indexing and link following.
Hosting and Email
Pages, Search and Sharing
| Meta description | Simple yet flexible JavaScript charting library for the modern web |
|---|---|
| Canonical URL | Not detected |
| Language | English (default) |
| Twitter Card | Not detected |
Social Sharing Preview
4 fieldsSharing metadata
| og:type | website |
|---|---|
| og:image | https://www.chartjs.org/img/cover.png |
| og:title | Chart.js |
| og:description | Simple yet flexible JavaScript charting library for the modern web |
robots.txt (opens in a new tab)
3 rulesAll bots 2 allowed · 1 disallowed
//docs/latest/
/docs/*/
No matching rules.
Sitemaps
0No sitemaps found
Registration details RDAP / WHOIS
| Registrar | Cloudflare, Inc. |
|---|---|
| Registered | 2013-02-16 |
| Expires | 2027-02-16 |
| Domain status | client transfer prohibited |
| Nameservers | anirban.ns.cloudflare.com、diva.ns.cloudflare.com |
| DNSSEC | signed |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | chartjs.org | 104.18.183.237 | 300 | — |
| A | chartjs.org | 104.18.184.237 | 300 | — |
| AAAA | chartjs.org | 2606:4700::6812:b7ed | 300 | — |
| AAAA | chartjs.org | 2606:4700::6812:b8ed | 300 | — |
| NS | chartjs.org | anirban.ns.cloudflare.com | 86400 | — |
| NS | chartjs.org | diva.ns.cloudflare.com | 86400 | — |
| DS | chartjs.org | 2371 13 2 0f8126f67489aaf60941f0502e7a23acb76a966b6a93c7516189fcd41709f77b | 3600 | — |
TLS and certificates
| Assessment | Normal configuration |
|---|---|
| Supported protocols | TLSv1.2、TLSv1.3 |
| Negotiated protocol | TLSv1.3 |
| Certificate subject | chartjs.org |
| Issuer | Google Trust Services |
| Valid until | 2026-11-13T06:04 · Remaining when checked: 70 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=14400 |
| server | cloudflare |
| access-control-allow-origin | * |
| set-cookie | Redacted |
Identified technologies
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