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SEO Report for

November 25, 2019 4:08 PM
Desktop screen Desktop screenshot for


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Well done!
All criteria passed


• Category
Technology & Computing  >  JavaScript  >  Web Design / HTML
• Online since
November 23, 2016 (explore Wayback Machine)
• Age
6 years, 2 months, 14 days
• Alexa Rank
#12.636, is in the world's top 20.000 websites!


Representation of an online Form

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SSL Certificate
This website is not SSL secured (HTTPS), the certificate issued by COMODO CA Limited has expired on May 26, 2020.
Title Tag
CodeSandbox: Online Code Editor Tailored for Web Application Development
Length: 72 (recommended: 10 to 70)
Meta Description
CodeSandbox is an online code editor with a focus on creating and sharing web application projects
Length: 98 (recommended: 50 to 160)
Google preview
Desktop Version

CodeSandbox: Online Code Editor Tailored for Web Application Developme...

CodeSandbox is an online code editor with a focus on creating and sharing web application projects

Mobile Version

Favicon for

CodeSandbox: Online Code Editor Tailored for Web Application Developme...

CodeSandbox is an online code editor with a focus on creating and sharing web application projects

Great, language/character encoding is specified: utf-8
URL Resolve

Great, a redirect is in place to redirect traffic from your non-preferred domain. All versions of your page point to the same URL.

URL Parameters
Great, the domain URLs look clean.
Attribute Value
viewport width=device-width, initial-scale=1, shrink-to-fit=no


The owner has associated the following topics to the website.

WEBSITE SPEED website speed is fast. Page speed is important for visitors and search engines.

Get insights to improve your page loading time.

Page Loading Time


This domain loads at the median speed of 1.5 seconds.

Speed Percentile

59% is faster than approximately 59 percent of the web. Your website page speed needs to be as fast as you can make it, without compromising the customer experience.

A good goal to achieve is a loading time of 2 seconds on desktop and mobile devices.


This website is ranked #12.636 by Alexa.

This rank is traffic based. The lower the rank is, the better the domain is ranked.

Daily visitors by country

  • daily visitors distribution - Total: 20 countries
  • Flag for IndiaIndia (19.6%)
  • Flag for United States of AmericaUnited States of America (20.7%)
  • Flag for Iran (Islamic Republic of)Iran (Islamic Republic of) (8.0%)
  • Flag for NigeriaNigeria (3.0%)
  • Flag for CanadaCanada (3.0%)
  • Flag for JapanJapan (7.1%)
  • Flaf icon for other countryOthers (38.6%)

Traffic country ranks

Country Rank
Flag for Viet NamViet Nam #5.852
Flag for IndiaIndia #4.249
Flag for EgyptEgypt #15.532
Flag for SingaporeSingapore #5.306
Flag for BangladeshBangladesh #7.602


Doctype HTML5 Arrow Responsive website, mobile-friendly. Arrow

Mobile Rendering

This website seems to be optimized for Mobile Visitors.

How looks like on a mobile device such as an iPhone.

How looks like on a tablet such as an iPad.

Main colors used

These are the main HTML color codes used by this website. Arrow
  • 87% #102020
  • 7% #404040
  • 2% #505050
  • 1% #606060
  • 0% #d0a060
  • 0% #a08050
  • 0% #e0a070
  • 0% #d09050
  • 0% #50a0e0
  • 0% #e0b080
  • 0% #204060
  • 0% #70c0f0

Text/code ratio's text/code ratio is 3.84%. It's a bit low. Consider raising it by adding more text content of value for your visitors, or keeping your code clean.
Text / Code Ratio 3.84%

A good text to HTML ratio is anywhere from 25 to 70%.

This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information.

Main HTML tags

Headings Arrow up

Great, we found headings on this page.

  • <H1> 1
  • <H2> 6
  • <H3> 6
  • <H4> 12
  • <H5> 3
  • <H6> 0
Top level heading
2nd level heading
The online code editor for web
Codesandbox is an online editor that helps you create web applications, from prototype to deployment.
Share in a single click
Be productive, anywhere
There's more
3rd level heading
Tailored for web applications
Supported loaders
Css scoping support
Recent publications
4th level heading
Npm support
Search & discovery
5th level heading
Alt attributes Arrow up

We found 26 images on this website.
Great, 0 ALT attributes are missing on your image tags.


This is an overview of your homepage shares on social networks.

You have a relatively high presence on social media, keep going!

The more people share your website, the more likely you will get links from others, which is a key point when it comes to improving your overall search engine rankings.

  • Facebook iconFacebook
  • Total Engagement 1.514
  • Likes 729
  • Shares 521
  • Comments 264
  • Pinterest iconPinterest 0
  • Linkedin iconLinkedin 0
  • Stumbleupon iconStumbleupon 0


Domain Registrar NAMECHEAP, INC
Registration Date 11/23/2016 6 years, 2 months, 14 days ago
Last Modified 10/29/2019 3 years, 3 months, 10 days ago


Server map
  • Service Provider (ISP)
  • Cloudflare, Inc.
  • IP Address
  • Country
  • Flag for United StatesUnited States
  • Region
  • Virginia , Ashburn
  • Latitude and Longitude
  • 39.0438 : -77.4874