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Cloudflare
cloudflare.com › learning › ssl › what-is-an-ssl-certificate
What is an SSL certificate? | Cloudflare
An SSL certificate displays important information for verifying the owner of a website and encrypting web traffic with SSL/TLS, including the public key, the issuer of the certificate, and the associated subdomains.
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SSL.com
ssl.com › home
SSL Certificate & Digital Certificate Authority - SSL.com
June 10, 2025 - SSL.com provides SSL/TLS & digital certificates to secure and encrypt data with our 4096-bit SSL/TLS Certificates, trusted by all popular browsers.
Discussions

SSL certificate renewal for LDAPS - both new and old certificates installed at the same time?

Yes they can and windows will use the one with the expiry date furthest in the future (Notes at the end of the KB).

More on reddit.com
🌐 r/activedirectory
7
5
June 24, 2018
Choosing a SSL certificate for a website
Don't pay anything for an SSL cert. On the web, there's functionally no difference between certs. EV certs and things make sense for code signing, but not the web. It's 99% all marketing bullshit. Get a free cert from https://letsencrypt.org/ , https://zerossl.com/ , etc. Any modern and reasonable host will have these solutions automated and available with one click within their panel. If your host doesn't support this, I would recommend you move host ASAP. Further reading: https://scotthelme.co.uk/do-ssl-warranties-protect-you-as-much-as-rocks-keep-tigers-away/ https://scotthelme.co.uk/gone-for-ever/ https://www.troyhunt.com/extended-validation-certificates-are-really-really-dead/ https://www.cloudflare.com/learning/ssl/what-is-an-ssl-certificate/ More on reddit.com
🌐 r/webdev
24
4
January 28, 2023
ELI5: What is a SSL Certificate?
In order to make a secure connection to your web page you need to encrypt that traffic. When you see this HTTPS://webpage.com that means the connection between client and server is encrypted and no one can sniff that traffic. In order to establish that connection your web server need a certificate that validate your domain and your web server and the web browser. You can read more here. More on reddit.com
🌐 r/explainlikeimfive
15
3
December 1, 2018
SSL Certificate - Paid v Free?
Almost no one should pay for certificates these days. These companies mostly survive on the assumption paid = better. More on reddit.com
🌐 r/selfhosted
32
24
July 25, 2023
People also ask

Is my certificate SSL or TLS?
The SSL protocol has always been used to encrypt and secure transmitted data. Each time a new and more secure version was released, only the version number was altered to reflect the change (e.g., SSLv2.0). However, when the time came to update from SSLv3.0, instead of calling the new version SSLv4.0, it was renamed TLSv1.0. We are currently on TLSv1.3. Because SSL is still the better known, more commonly used term, DigiCert uses TLS/SSL when referring to certificates or describing how transmitted data is secured. When you purchase an SSL Certificate from us (e.g., Standard SSL, Extended Vali
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digicert.com
digicert.com › what-is-an-ssl-certificate
What is an SSL Certificate? | DigiCert
How do SSL certificates work?
SSL certificates include the following information in a single data file: · The domain name that the certificate was issued for · Which person, organization, or device it was issued to · Which certificate authority issued it · The certificate authority's digital signature · Associated subdomains · Issue date of the certificate · Expiration date of the certificate · The public key (the private key is kept secret)
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cloudflare.com
cloudflare.com › learning › ssl › what-is-an-ssl-certificate
What is an SSL certificate? | Cloudflare
How Does The SSL Certificate Create A Secure Connection?
When a browser attempts to access a website that is secured by SSL, the browser and the web server establish an SSL connection using a process called an “SSL Handshake” (see diagram below). Note that the SSL Handshake is invisible to the user and happens instantaneously. Essentially, three keys are used to set up the SSL connection: the public, private, and session keys. Anything encrypted with the public key can only be decrypted with the private key, and vice versa. Because encrypting and decrypting with private and public key takes a lot of processing power, they are only used during the S
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digicert.com
digicert.com › what-is-an-ssl-certificate
What is an SSL Certificate? | DigiCert
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DigiCert
digicert.com › what-is-an-ssl-certificate
What is an SSL Certificate? | DigiCert
What is a TLS/SSL Certificate and how does it work? TLS/SSL Certificates are small data files that digitally bind a cryptographic key to a company, business or organization’s details. TLS certificates are what enable websites to move from HTTP to HTTPS, which is more secure.
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Norton
us.norton.com › blog home › how to › what is an ssl certificate, and why is it important?
What is an SSL certificate, and why is it important?
August 8, 2025 - If you’re a business owner or manage your organization’s website, having an SSL certificate is essential. It activates HTTPS, which encrypts the data exchanged between your site and its visitors, making it unreadable to unauthorized parties.
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AWS
aws.amazon.com › what is cloud computing? › cloud computing concepts hub › security, identity, & compliance › what is an ssl/tls certificate?
What Is An SSL Certificate? - SSL/TLS Certificate Explained - AWS
1 week ago - SSL/TLS stands for secure sockets ... to each other on the internet safely. SSL/TLS certificates allow web browsers to identify and establish encrypted network connections to web sites using the SSL/TLS protocol....
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Positivessl
positivessl.com › homepage
PositiveSSL® - The Official PositiveSSL® Site | PositiveSSL Certificates
Compatible with all popular browsers. Designed with cutting-edge technology. Trusted above many of the more expensive options on the market. PositiveSSL certificates from Sectigo feature high strength 2048-bit digital signatures, immediate online issuance, and unlimited server licenses.
Find elsewhere
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Let's Encrypt
letsencrypt.org
Let's Encrypt
Let's Encrypt is a Certificate Authority that provides free TLS certificates, making it easy for websites to enable HTTPS encryption and create a more secure Internet for everyone. Let's Encrypt is a project of the nonprofit Internet Security Research Group. ... Start securing your websites with free SSL/TLS certificates from Let's Encrypt.
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GoDaddy
godaddy.com › web-security › ssl-certificate
SSL Certificate | Secure Your Data & Transactions - GoDaddy
An SSL certificate from GoDaddy will secure your web site with both industry-standard 128-bit encryption and high grade 256-bit encryption.
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HubSpot
blog.hubspot.com › marketing › what-is-ssl
A Beginner's Guide to SSL: What It is & Why It Makes Your Website More Secure
June 14, 2022 - This certificate shows the padlock, HTTPS, business name, and business country in the address bar to diminish being mistaken for a spam website. Extended Validation (SV) SSL are the most expensive SSLs to obtain, but they are valuable in showing the legitimacy of your domain from the address bar.
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SSLS
ssls.com
Cheap SSL Certificates at a bargain price - SSLs.com
Buy cheap SSL certificates from SSLs.com, our prices are cheaper. We carry the widest SSL range of Comodo SSL certificates. Buy today!
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ZeroSSL
zerossl.com
Free SSL Certificates and SSL Tools - ZeroSSL
Free SSL certificates issued instantly online, supporting ACME clients, SSL monitoring, quick validation and automated SSL renewal via ZeroSSL Bot or REST API.
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Kaspersky
usa.kaspersky.com › resource-center › definitions › what-is-a-ssl-certificate
What is an SSL Certificate & Why is it important?
May 5, 2025 - The domain name that the certificate was issued for · Which person, organization, or device it was issued to ... Websites need SSL certificates to keep user data secure, verify ownership of the website, prevent attackers from creating a fake version of the site, and convey trust to users.
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Fortinet
fortinet.com › resources › cyberglossary › ssl-certificate
What is an SSL Certificate? Why is it Important? | Fortinet
SSL (secure sockets layer) certificate holds the data that browsers access when you are viewing and interacting with the page. Learn what an SSL certificate is, its types, and how it protects the websites.
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SSLShopper
sslshopper.com › ssl-checker.html
SSL Checker
To use the SSL Checker, simply enter your server's public hostname (internal hostnames aren't supported) in the box below and click the Check SSL button. If you need an SSL certificate, check out the SSL Wizard.
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Namecheap
namecheap.com › security › ssl-certificates
Buy SSL Certificates from $5.99 per yr.
It verifies the strength of the Secure Socket Layer encryption used when a user connects to the site and connects that encryption to the organization or individual that owns and maintains the website. SSL certification and validation are a necessary piece of web security for any business that collects information from its users.
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Thawte
thawte.com › resources
Thawte Resources | Learn About TLS/SSL Certificates | Thawte
Credentials for establishing identity are common to our everyday lives: a driver’s license, a passport, a company badge. An SSL certificate is a type of digital certificate that serves as a credential in the online world.
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Mailchimp
mailchimp.com › resources › what-is-ssl-certificate
What is an SSL Certificate? SSL Certificates Explained | Mailchimp
A secure sockets layer (SSL) certificate is a digital certificate that guarantees the authenticity of your website, meaning that your website represents itself truthfully and visitors will find the content they expect.
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Hostinger
hostinger.com › free ssl certificate
Get free SSL certificate | Secure your website
Free SSL secures your website. Get SSL/TLS certificates activated instantly at zero cost to protect your website and customers.
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Let's Encrypt
letsencrypt.org › getting-started
Getting Started - Let's Encrypt
Let’s Encrypt issues certificates through an automated API based on the ACME protocol. In order to interact with the Let’s Encrypt API and get a certificate, a piece of software called an “ACME client” is required. No part of the process for getting a certificate happens on this website, ...
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SSL Labs
ssllabs.com › ssltest
SSL Server Test (Powered by Qualys SSL Labs)
A comprehensive free SSL test for your public web servers.