{"id":1,"date":"2023-08-02T17:12:08","date_gmt":"2023-08-02T17:12:08","guid":{"rendered":"http:\/\/webtestinglink.com\/beta\/sourabhgupta\/?p=1"},"modified":"2025-10-18T21:50:09","modified_gmt":"2025-10-18T21:50:09","slug":"looking-at-letsencrypt-and-its-alternatives-in-2023","status":"publish","type":"post","link":"https:\/\/webtestinglink.com\/beta\/sourabhgupta\/looking-at-letsencrypt-and-its-alternatives-in-2023\/","title":{"rendered":"Looking at LetsEncrypt and its alternatives in 2023"},"content":{"rendered":"

What is CA (Certificate authority)<\/h3>\n

A certificate authority (CA) is trusted entity or organisation which issues digital SSL certificates for websites and other entities.<\/p>\n

These digital certificates are a trusted file or electronic password which proves the authenticity of a website, domain, server, or user through the use of cryptography and\u00a0PKI<\/strong>\u00a0(public key infrastructure).<\/p>\n

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A digital certificate provides the following details:
\nAuthentication<\/strong>, by serving as a credential to validate the identity of the entity that it is issued to.
\nEncryption<\/strong>, for secure communication over insecure networks such as the Internet.
\nIntegrity<\/strong> of documents signed with the certificate so that they cannot be altered by a third party in transit.<\/p>\n<\/blockquote>\n

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What is LetsEncrypt ?<\/h3>\n

Let\u2019s Encrypt is a free, automated, and open certificate authority (CA), run for the public\u2019s benefit. It is a service provided by the\u00a0Internet Security Research Group (ISRG)<\/a>. It provides X.509 certificates for Transport Layer Security (TLS) encryption. These are free certificates which means anyone who has a domain name can use Let\u2019sEncrypt to obtain a trusted certificate at zero cost.<\/p>\n

LetsEncrypt provides two types of certificates:<\/strong><\/p>\n

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  1. The standard single domain SSL<\/li>\n
  2. The\u00a0Wildcard SSL<\/a>, which covers not only a single domain, but all of its subdomains too.<\/li>\n<\/ol>\n

    Let\u2019sEncrypt certificates come with a validity of 90 days.Let\u2019s Encrypt automatically renews certificates to reduce page errors.<\/p>\n

    Let\u2019sEncrypt uses the\u00a0ACME (Automatic Certificate Management Environment )<\/a>\u00a0protocol to provide free TLS\/SSL certificates to any compatible client. The ACME (Automated Certificate Management Environment) protocol was originally developed by the Internet Security Research Group for its public CA, LetsEncrypt.<\/p>\n

    In 2019, the IETF\u00a0standardized the ACME protocol<\/a>\u00a0in\u00a0RFC8555<\/a>, and many clients have since developed support for the protocol. ACME v2 is not backwards compatible with v1, which will be\u00a0deprecated entirely<\/a>\u00a0in June 2021.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

    Possible alternatives to LetsEncrypt in 2023<\/strong><\/h3>\n
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