What’s the difference between HTTP and HTTPS?
Hypertext transfer protocol (HTTP) is a protocol or mix of communication rules for client-server communication. When you visit a trang web, your browser sends a HTTP request to tướng the trang web server, which responds with an HTTP response. The trang web server and your browser exchange data as plaintext. In short, HTTP protocol is the underlying technology that powers network communication. As the name suggests, hypertext transfer protocol secure (HTTPS) is a more secure version or an extension of HTTP. In HTTPS, the browser and server establish a secure, encrypted connection before transferring data.
How does HTTP protocol work?
HTTP is an application layer protocol in the Open Systems Interconnection (OSI) network communication model. It defines several types of requests and responses. For example, when you want to tướng view some data from a trang web, you send the HTTP GET request. If you want to tướng send some information, lượt thích filling out a liên hệ size, you send the HTTP PUT request.
Similarly, the server sends different types of HTTP responses in the size of number codes and data. Here are some examples:
- 200 - OK
- 400 - Bad request
- 404 - Resource not found
This request-response communication is usually invisible to tướng your users. It’s the communication method that the browser and trang web servers use, so sánh the World Wide Web works consistently for everyone.
How does HTTPS protocol work?
HTTP transmits unencrypted data, which means that information sent from a browser can be intercepted and read by third parties. This wasn’t an ideal process, so sánh it was extended into HTTPS to tướng add another layer of security to tướng communication. HTTPS combines HTTP requests and responses with SSL and TLS technology.
HTTPS websites must obtain an SSL/TLS certificate from an independent certificate authority (CA). These websites share the certificate with the browser before exchanging data to tướng establish trust. The SSL certificate also contains cryptographic information, so sánh the server and trang web browsers can exchange encrypted or scrambled data. The process works lượt thích this:
- You visit an HTTPS trang web by typing the https:// URL format in your browser’s address bar.
- The browser attempts to tướng verify the site’s authenticity by requesting the server’s SSL certificate.
- The server sends the SSL certificate that contains a public key as a reply.
- The website’s SSL certificate proves the server identity. Once the browser is satisfied, it uses the public key to tướng encrypt and send a message that contains a secret session key.
- The trang web server uses its private key to tướng decrypt the message and retrieve the session key. It then encrypts the session key and sends an acknowledgment message to tướng the browser.
- Now, both browser and trang web server switch to tướng using the same session key to tướng exchange messages safely.
Read more about SSL/TSL certificates »
What’s the difference between HTTP/2, HTTP/3, and HTTPS?
The original HTTP version released in 1996–97 was called HTTP/1.1. HTTP/2 and HTTP/3 are upgraded versions of the protocol itself. The data transfer system’s been modified to tướng make it more efficient. For example, HTTP/2 exchanges data in binary instead of textual format. It also allows servers to tướng proactively transmit responses to tướng client caches instead of waiting for a new HTTP request. HTTP/3 is relatively new but attempts to tướng take HTTP/2 one step further. The goal of HTTP/3 is to tướng tư vấn real-time streaming and other modern data transfer requirements more efficiently.
HTTPS prioritizes data security concerns in HTTP. Modern systems use HTTP/2 with SSL/TLS as HTTPS. As HTTP/3 matures, browser and server technology will eventually integrate it under HTTPS as well.
Why choose HTTPS over HTTP?
Next, we’ll discuss some benefits of HTTPS over HTTP.
Security
HTTP messages are plaintext, which means unauthorized parties can easily access and read them over the mạng internet. In contrast, HTTPS transmits all data in encrypted size. When users submit sensitive data, they can be confident that no third parties can intercept the data over the network. It’s better to tướng choose HTTPS to tướng protect potentially sensitive information lượt thích credit thẻ details or customers’ personal information.
Authority
Search engines generally rank HTTP trang web nội dung lower than thở HTTPS webpages due to tướng HTTP being less trustworthy. Customers also prefer HTTPS websites over HTTP. The browser makes the HTTPS connection visible to tướng your users by placing a padlock icon in the browser’s address bar next to tướng the trang web URL. Users prefer HTTPS websites and applications due to tướng these additional security and trust factors.
Performance and analytics
HTTPS trang web applications load faster than thở HTTP applications. Similarly, HTTPS also tracks referral links better. Referral traffic is your website’s traffic from third-party sources lượt thích advertisements or social truyền thông backlinks. You must enable HTTPS if you want analytics software to tướng identify your reliable traffic sources accurately.
Is HTTPS setup more expensive than thở HTTP?
HTTPS requires you to tướng obtain and maintain an SSL/TLS certificate on your server. In the past, most certificate authorities would charge an annual fee for certificate registration and maintenance. However, that’s no longer the case.
There are many sources to tướng obtain không tính phí SSL certificates. For example, at Amazon Web Services (AWS), we offer AWS Certificate Manager (ACM). ACM provisions, manages, and deploys public and private SSL/TLS certificates that you can use with AWS services and your internally connected resources. ACM removes the time-consuming manual process where you’d purchase, upload, and renew SSL/TLS certificates.
Summary of differences: HTTP vs. HTTPS
HTTP |
HTTPS |
|
Stands for |
Hypertext Transfer Protocol |
Hypertext Transfer Protocol Secure |
Underlying Protocols |
HTTP/1 and HTTP/2 use TCP/IP. HTTP/3 uses QUIC protocol. |
Uses HTTP/2 with SSL/TLS to tướng further encrypt the HTTP requests and responses |
Port |
Default Port 80 |
Default Port 443 |
Used for |
Older text-based websites |
All modern websites |
Security |
No additional security features |
Uses SSL certificates for public-key encryption |
Benefits |
Made communication over the mạng internet possible |
Improves trang web authority, trust, and tìm kiếm engine rankings |
How can AWS tư vấn your HTTPS requirements?
On this trang web, you can review AWS networking and nội dung delivery services that tư vấn HTTPS and SSL/TLS by mặc định.
Amazon Lightsail lets you quickly build applications and websites with low-cost, preconfigured cloud resources. In addition, you can use Lightsail load balancers to tướng build secure applications and accept HTTPS traffic. Lightsail makes it easier for you to tướng request, provision, and maintain SSL/TLS certificates. The built-in certificate management requests and renews certificates on your behalf and automatically adds the certificate to tướng your load balancer.
Amazon Cloudfront gives you three options for accelerating your entire trang web and delivers your nội dung securely over HTTPS from all CloudFront edge locations. In addition to tướng delivering securely from the edge, you can also configure the nội dung delivery network (CDN) to tướng use HTTPS connections for origin fetches. This means your data is secured with end-to-end encryption from your origin to tướng your users.
Get started with HTTPS on AWS by creating a không tính phí trương mục today.