codepen.io
Feb 26th 2028 02:22 AM
Gandi SAS
signedDelegation
Yes
Nov 17th 2025 08:22 PM
Codepen.io is a popular online code editor and community platform that allows users to write, test, and showcase their code. It's been well-established since 2012 and is widely trusted, with a signedDelegation DNSSEC status for added security.
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WHOIS Information
Registrar Gandi SAS
Registration: February 26th, 2012
Expires: February 26th, 2028
Updated: November 17th, 2025
Nameservers
albert.ns.cloudflare.com. 172.64.33.58
kristin.ns.cloudflare.com. 108.162.192.181
Meta Tags
viewport
width=device-width
csrf-param
authenticity_token
csrf-token
lLUY7IHNl53Af7THzXSCtsEaNAEvQi9-sRU6-0AArNuaiH3MmzRskM-l-LdpWW-zo64XxKgGxTBFCnxSHTdZ1w
description
Build, share, and learn JavaScript, CSS, and HTML with our online code editor.
keywords
javascript, css, editor, code, community, social, frontend, developer, designer, deploy, test, demo, spa, single, page, application, web, html, modern, ide, browser, pen, codepen
og:image
https://cpwebassets.codepen.io/assets/social/facebook-default-05cf522ae1d4c215ae0f09d866d97413a2204b6c9339c6e7a1b96ab1d4a7340f.png
og:title
CodePen
og:description
An online code editor, learning environment, and community for front-end web development using HTML, CSS and JavaScript code snippets, projects, and web applications.
apple-mobile-web-app-title
CodePen
SSL Certificate
Status:
Enabled
Expires: June 16th, 2026
Issuer: Google Trust Services
DNS Records
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| codepen.io | NS | 86400 | albert.ns.cloudflare.com. | |
| codepen.io | NS | 86400 | kristin.ns.cloudflare.com. | |
| codepen.io | A | 100 | 104.16.163.32 | |
| codepen.io | A | 100 | 104.16.147.32 | |
| codepen.io | AAAA | 300 | 2606:4700::6810:9320 | |
| codepen.io | AAAA | 300 | 2606:4700::6810:a320 | |
| codepen.io | MX | 300 | 1 | aspmx.l.google.com. |
| codepen.io | MX | 300 | 5 | alt1.aspmx.l.google.com. |
| codepen.io | MX | 300 | 5 | alt2.aspmx.l.google.com. |
| codepen.io | MX | 300 | 10 | aspmx2.googlemail.com. |
| codepen.io | MX | 300 | 10 | aspmx3.googlemail.com. |
| codepen.io | TXT | 300 | "v=spf1 include:s43465759.fdmarc.net ~all" | |
| codepen.io | TXT | 300 | "google-site-verification=ee6yZSYLRMH7NdG8DSox4-fH0btH7GdMbMyY7zHenxY" | |
| codepen.io | SOA | 1800 | albert.ns.cloudflare.com. dns.cloudflare.com. 2404614010 10000 2400 604800 1800 |