![]() In addition to securing user data in transit, HTTPS makes sites more trustworthy from a user's perspective. HTTPS is the secure form of HTTP, and HTTPS websites are websites that have their traffic encrypted by SSL/TLS. HTTPS: Most crucially for businesses, an SSL certificate is necessary for an HTTPS web address. This helps prevent domain spoofing and other kinds of attacks. Clients (such as web browsers) get the public key necessary to open a TLS connection from a server's SSL certificate.Īuthentication: SSL certificates verify that a client is talking to the correct server that actually owns the domain. Why do websites need an SSL certificate?Ī website needs an SSL certificate in order to keep user data secure, verify ownership of the website, prevent attackers from creating a fake version of the site, and gain user trust.Įncryption: SSL/TLS encryption is possible because of the public-private key pairing that SSL certificates facilitate. Data encrypted with the public key can only be decrypted with the private key. The public and private keys used for SSL are essentially long strings of characters used for encrypting and signing data. The public key (the private key is kept secret).The certificate authority's digital signature.Which person, organization, or device it was issued to.The domain name that the certificate was issued for.What information does an SSL certificate contain? See What is SSL? and What is TLS? to learn more. Any website with an HTTPS web address uses SSL/TLS. SSL, more commonly called TLS, is a protocol for encrypting Internet traffic and verifying server identity. The private key is kept secret and secure. Devices attempting to communicate with the origin server will reference this file to obtain the public key and verify the server's identity. SSL certificates make SSL/TLS encryption possible, and they contain the website's public key and the website's identity, along with related information. An SSL certificate is a data file hosted in a website's origin server. SSL certificates are what enable websites to move from HTTP to HTTPS, which is more secure. Secure endpoints for your remote workforce by deploying our client with your MDM vendorsĮnhance on-demand DDoS protection with unified network-layer security & observabilityĬonnect to Cloudflare using your existing WAN or SD-WAN infrastructure Get frictionless authentication across provider types with our identity partnershipsĮxtend your network to Cloudflare over secure, high-performing links Integrate device posture signals from endpoint security programs We work with partners to provide network, storage, & power for faster, safer delivery We partner with leading cyber insurers & incident response providers to reduce cyber risk We partner with an alliance of providers committed to reducing data transfer fees Use insights to tune Cloudflare & provide the best experience for your end users Apply to become a technology partner to facilitate & drive our innovative technologies
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