
Codecademy
Exercism
Treehouse
LeetCode
edX
Coursera
Udemy
Achieve code mastery through challenge.

Whats My DNS
MxToolBox
DNS Checker Tool
ViewDNS.info
NsLookup.io
DNS Propagation Check
DNSMap
Check DNS Propagation worldwide. DNS Checker provides name server propagation check instantly. Changed nameservers so do a DNS lookup and check if DNS and nameservers have propagated.

Which is more popular?
Codewars might be a bit more popular than DNSChecker.org. We know about 160 links to it since March 2021 and only 143 links to DNSChecker.org.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | codewars.com | dnschecker.org |
| Pricing | ||
| Company | — | 2012 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Codewars yet.
DNS Propagation checker with over 100+ Pubic DNS Servers available in General and Country listings to check Live DNS Propagation results. More tools including WhatsMyIP, IP Geo Location, Email Headers, IP Blacklist Checker, MX Check, and more SEO tools also available.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Codewars is recommended for beginner to advanced programmers who enjoy learning through practice and are interested in improving their algorithmic thinking and coding skills in a gamified environment. It is particularly beneficial for those preparing for coding interviews or seeking to reinforce their programming knowledge in a fun and interactive way.
Overall verdict
Why this product is good
Recommended for
DNSChecker.org is recommended for website administrators, IT professionals, and developers who need to verify and troubleshoot DNS propagation issues. It's also useful for anyone needing to check DNS configurations quickly across various geographic locations.
Walkthroughs and reviews on video.
Codewars Review & Tips
More videos
DNS checker tutorial
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Codewars and DNSChecker.org. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Edabit offers a learning experience similar to learning a new language, focusing on smaller and more frequent exercises that build proficiency over time. Like Codewars, Edabit provides many challenges that increase in...
In conclusion, while Leetcode remains a valuable resource for coders, the platforms listed above offer varied approaches to learning and improving coding skills. Whether you're drawn to the gamified learning...
This LeetCode alternative has excellent features for anyone looking to sharpen their coding skills. Codewars uses kata, which are small coding exercises that are community developed to help you master your language of...
The best website so far, that provides detailed propagation results, compared to any other online similar tool. Highly recommended!
Recommendations tracked on public social media and blogs since March 2021.


Recently, I was working on a coding kata on codewars.com. Early on, I started thinking that a potential solution might utilize recursion, a concept that involves a function calling itself. However, I quickly realized that my grasp of... - Source: dev.to / almost 3 years ago
Get more involved. Look into internships and junior SWE positions to get a sample of what you'd be applying for once you graduate. Solve coding challenges, start working on a portfolio of your personal works. I recommend codewars.com for... Source: almost 3 years ago
I'd recommend to play around with some basic coding challenges on leetcode.com or codewars.com. If the course prepared you well you won't find this useful, but playing around with them will make sure that you are comfortable with basics... Source: about 3 years ago
Https://dnschecker.org/#A/motherless.com. - Source: Hacker News / 2 months ago
There are many; I often use . - Source: Hacker News / 3 months ago
Just wondering what happened to it as the DNS is no longer being resolved anywhere in the world: https://dnschecker.org/#A/pinboard.in. - Source: Hacker News / 3 months ago
When comparing Codewars and DNSChecker.org, you can also consider the following products.

Learn the technical skills you need for the job you want. As leaders in online education and learning to code, we’ve taught over 45 million people using a tested curriculum and an interactive learning environment.
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Instantly check your domain names current IP address and DNS record information against multiple name servers located in different parts of the world.
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Download and solve practice problems in over 30 different languages.
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All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.
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Treehouse is an award-winning online platform that teaches people how to code.
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Check Domain Name System (DNS) records for any website.
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