Let's Encrypt vs Google reCaptcha: What are the differences?
What is Let's Encrypt? A free, automated, and open Certificate Authority (CA). Let’s Encrypt is a free, automated, and open certificate authority brought to you by the non-profit Internet Security Research Group (ISRG).
What is Google reCaptcha? A free service that protects your website from spam and abuse. It is a free service that protects your website from spam and abuse. It uses an advanced risk analysis engine and adaptive CAPTCHAs to keep automated software from engaging in abusive activities on your site. It does this while letting your valid users pass through with ease.
Let's Encrypt and Google reCaptcha can be categorized as "Security" tools.
Teleport, Learnbeat, and Eventdrive are some of the popular companies that use Let's Encrypt, whereas Google reCaptcha is used by Veggie Sailor, SmartBuild Asia, and Broadvoice. Let's Encrypt has a broader approval, being mentioned in 402 company stacks & 863 developers stacks; compared to Google reCaptcha, which is listed in 9 company stacks and 10 developer stacks.