How To Get A Free Wildcard SSL Certificate From Lets Encrypt

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One of my favorite services is Let’s Encrypt. They issue free SSL certificates. I have written about how to generate a certificate for a Web Service using their service. They have just started issuing wildcard certificates, and in this blog post I will show you how to make one for an Azure App Service Environment (ASE).

What is a Wild Card SSL Certificate?

In computer networking, a wildcard certificate is a public key certificate which can be used with multiple subdomains of a domain. In easy words, it secures every sub-domain of your domain eg. a wildcard will secure as well as


  • You need a Domain Name to Get a Certificate, Lets Encrypt Certificates are not for IP Addresses.
  • Need to access DNS Panel of your Domain.
  • Just a little bit of time.

Getting Started

Note: If you are a developer and want to issue a Wildcard Certificate using command lines visit Documentation of Let’s Encrypt.

  • Open SSL For Free.
  • Creating a Account is Recommend. (Easy Renewals)
  • In the blank option enter your domain name like this:

Correction Please enter three varients to avoid problems in future as given above.

  • Click on Create Free SSL Certificate.
  • Click on Manually Verify Domain.
  • It will require you to add a DNS TXT record. It’s Easy.

I have hosted my DNS on Cloudflare so opening Cloudflare DNS option.

  • Add DNS Record as follows: in host enter _acme-challenge.

  • Enter Value from the SSL For Free Website and Save the record.
  • Verify the record by clicking on Verify option.

See This

  • If matches then Click on Download SSL Certificate.

  • Download SSL Files or Just Copy them to use where your domain is hosted.

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