Codepen.io CodePen: Build, Test, and Discover Front-end Code.

An online code editor, learning environment, and community for front-end web development using HTML, CSS and JavaScript code snippets, projects, and w...

Codepen.io Overview

CodePen is an online community website that offers an online code editor and learning environment for front-end web development using HTML, CSS, and JavaScript code snippets, projects, and web applications. The website is designed as an online tool for front-end developers and designers to build, test, and discover front-end code easily.

From the site's name, "CodePen," it is easy to discern that the purpose of the site is to help developers create and test their code. The site has a modern, minimalistic design with a white background and black text, which gives it a sleek, professional look. The site is also easy to navigate, with the homepage showcasing a range of user-generated content such as featured pens, collections, and popular tags.

CodePen is hosted by Cloudflare, Inc., a US-based hosting company. The top-level domain for the site is ".IO," which is a country code top-level domain (ccTLD) that was initially assigned to the British Indian Ocean Territory. However, it has become popular with tech companies as an alternative to .com or .net domains.

The website also employs SSL security issued by Cloudflare. This ensures that data transferred to and from the website is encrypted, protecting users' privacy and preventing data breaches.

As a coding community, the site is family-friendly, there is no content that is inappropriate for children or users of any age. However, parents and guardians must supervise children's activities online.

Regarding site speed, PageSpeed Insights scores of the website are not optimal, with a performance score of 46. However, it still has high scores in accessibility (92), best practices (92), and SEO (85). The website developers can improve their performance score and overall loading speed by minimizing resource sizes, optimizing server responses, and using browser caching.

Overall, CodePen is a valuable resource for front-end developers, offering various tools for web development, prototyping, and inspiration. The website's design is minimal, providing users with an easy-to-use interface to showcase their work, collaborate with peers, and explore new projects.

Codepen.io Rank Summary

Global Rank
523
Average Load Time
1.80sec
Links In Count
11,287
Website Value
$17.1 M

Codepen.io Website Safety

logo
Overview
Last Updated: 12/25/2024
Overall result - codepen.io is safe.
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.
Norton connect safe logo
Norton Connect Safe
Last Updated: 12/12/2024
codepen.io is safe.
Norton ConnectSafe evaluates codepen.io for any unsafe and insecure content. The results are critical for families with young children.
Google logo
Google Safe Search
Last Updated: 10/10/2016
codepen.io is safe.
SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.
Google safe brwosing logo
Google Safe Browsing
Last Updated: 08/11/2020
codepen.io is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
McAfee logo
Site Advisor
Last Updated: 02/22/2021
codepen.io is safe.
McAfee assesses codepen.io for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze codepen.io for mature or inappropriate content, only security checks are evaluated.
Web of trust logo
Web of Trust
Last Updated: 01/09/2019
codepen.io child safety is very good.
The WOT calculates reputation of the codepen.io. This reputation system receives ratings from users and information from third-party sources, assesses the codepen.io for safety features and confirms, whether codepen.io is suitable for children.

SSL Information
Domaincodepen.io
Issuer OrganizationCloudFlare, Inc.
IssuerCloudflare Inc ECC CA-3
Algorithmecdsa-with-SHA256
Valid form05/06/2022
Expiration05/06/2023
SignedCertificate is not self signed
Additional Domains *.codepen.io
codepen.io

Codepen.io Rank History

Codepen.io Hosting Information

Server Location

ASN Information

ASN ID: 13335

ASN Title: CLOUDFLARENET - Cloudflare, Inc., US

Last Update: 05/13/2024

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 13335
ASName: CLOUDFLARENET
ASHandle: AS13335
RegDate: 2010-07-14
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/autnum/13335


OrgName: Cloudflare, Inc.
OrgId: CLOUD14
Address: 101 Townsend Street
City: San Francisco
StateProv: CA
PostalCode: 94107
Country: US
RegDate: 2010-07-09
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/entity/CLOUD14

OrgTechHandle: ADMIN2521-ARIN
OrgTechName: Admin
OrgTechPhone: +1-650-319-8930
OrgTechEmail: rir@cloudflare.com
OrgTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

OrgAbuseHandle: ABUSE2916-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-650-319-8930
OrgAbuseEmail: abuse@cloudflare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

OrgNOCHandle: NOC11962-ARIN
OrgNOCName: NOC
OrgNOCPhone: +1-650-319-8930
OrgNOCEmail: noc@cloudflare.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RNOCHandle: NOC11962-ARIN
RNOCName: NOC
RNOCPhone: +1-650-319-8930
RNOCEmail: noc@cloudflare.com
RNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RTechHandle: ADMIN2521-ARIN
RTechName: Admin
RTechPhone: +1-650-319-8930
RTechEmail: rir@cloudflare.com
RTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

RAbuseHandle: ABUSE2916-ARIN
RAbuseName: Abuse
RAbusePhone: +1-650-319-8930
RAbuseEmail: abuse@cloudflare.com
RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Codepen.io Domain Registration and Settings

WHOIS

Domain Name: codepen.io
Registry Domain ID: 3f55cfcc45474392b772261501789392-DONUTS
Registrar WHOIS Server: whois.gandi.net
Registrar URL: https://www.gandi.net
Updated Date: 2022-11-21T18:58:41Z
Creation Date: 2012-02-26T02:22:09Z
Registry Expiry Date: 2028-02-26T02:22:09Z
Registrar: Gandi SAS
Registrar IANA ID: 81
Registrar Abuse Contact Email: abuse@support.gandi.net
Registrar Abuse Contact Phone: +33.170377661
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: CodePen
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: WA
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: kristin.ns.cloudflare.com
Name Server: albert.ns.cloudflare.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2022-12-12T01:18:47Z


DNS Records
HostA RecordTTL
codepen.io104.18.111.164300
codepen.io104.16.32.228300
HostMX RecordPriorityTTL
codepen.ioaspmx.l.google.com1300
codepen.ioaspmx2.googlemail.com10300
codepen.ioaspmx3.googlemail.com10300
codepen.ioalt1.aspmx.l.google.com5300
codepen.ioalt2.aspmx.l.google.com5300
HostNS RecordTTL
codepen.ioalbert.ns.cloudflare.com86400
codepen.iokristin.ns.cloudflare.com86400
HostTXT RecordTTL
codepen.iogoogle-site-verification=ee6yZSYLRMH7NdG8DSox4-fH0btH7GdMbMyY7zHenxY300
codepen.iov=spf1 include:s43465759.fdmarc.net ~all300

albert.ns.cloudflare.com
TTL: 1800
Email address: dns.cloudflare.com
Serial: 2348626765
Refresh: 10000
Retry: 2400
Expire: 604800
Minimum: 1800

Codepen.io HTML Check


Errors

Codepen.io Desktop Performance

Last tested: 06/12/2016

Speedometer image
Desktop Speed
83%

Desktop Resource Breakdown
Total Resources57
Number of Hosts19
Static Resources36
JavaScript Resources16
CSS Resources7

Codepen.io Mobile Insights

Last tested: 01/31/2018

Speedometer image
Mobile Usability
95%
Speedometer image
Mobile Speed
67%

Mobile Resource Breakdown
Total Resources50
Number of Hosts10
Static Resources33
JavaScript Resources9
CSS Resources5

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