Should I buy an SSL certificate from GoDaddy or use Let's Encrypt?

Question

Digital certificates

Purpose, commercial project, individual . I dig into the certificates, which are, etc. Here are the guides I started with:
the main one https://www.digitalocean.com/community/tutorials/h...
which I'm going to use https://www.digitalocean.com/community/tutorials/h...
or https:/ /www.godaddy.com/web-security/ssl-certificate The
question arose, as I understand it, in both cases, put the https protocol and ssl certificate on nginx.
However, what's the difference? What's better? Is it worth buying or can I use a certificate from Lets Encrypt to get started?
And also, I have an ssl certificate from 1&1.com where I took the domain, after downloading it, I still didn’t understand how to install it, I downloaded a file that is not in the guides, and I don’t know what to do with it further, so I had difficulties.

I have no idea how to put it on the server, because there are other formats.

Answer 1

1. A certificate from 1&1 is useless to you, because there is no key to it - and without a key, it's just a blablabla text file.
2. If the project is commercial - crush the toad and take a commercial certificate. A free certificate from LE looks just like mail from mail.ru from an office that positions itself as a serious one - it's ridiculous. The question immediately arises: "did they not even earn a certificate?". In addition, it is more difficult to obtain a commercial certificate, because it is issued only to legal experts (with the exception of the simplest ones, which are accessible to physicists, but LE is just right for this), more checks are carried out - well, only the commercial certificate will have the famous green plate.

Answer 2

I also took it on GoDaddy .... normal ... but there is 1 life hack ---- register, put your ssl in the basket, then wait a week or two, an email from GoDaddy will come about a 20% discount on the campaign, do nothing, then wait again a week somewhere else another letter from GoDaddy will arrive already at 30% --- then calmly buy a product with a 30% discount

Answer 3

The only difference is the level of trust.
Let's encrypt simply checks that the one who manages the domain name is the one who received the certificate. Ultimately, it comes down to making sure your domain name is correct. And that's it.
GoDaddy has a ton of extra options. checks. Up to those where you need to document your enterprise that it exists, that it is located there and so on.
Depends on why you use it.
For an online store - I bought a certificate.
For personal non-commercial projects - let's encrypt is fine.