Category: Amazon CloudFront

In this post, we demonstrate how you can use a same domain policy with Amazon CloudFront. Using this method, you eliminate the need for enabling Cross-Origin Resource Sharing (CORS), which results in improved performance for Single-Page Applications (SPA). Over the years, SPA frameworks such as ReactJs and AngularJs have become a popular method for developing […]

Whether you’re serving dynamic content from an Amazon Elastic Load Balancer (Amazon ELB), Amazon Elastic Compute Cloud (Amazon EC2) instances, Amazon API Gateway, or AWS Lambda to the end users on the Internet, you can improve the performance and security, and optimize the cost of your content delivery by using Amazon CloudFront as your content delivery network (CDN). […]

In this post, we demonstrate how to implement tag-based invalidation in Amazon CloudFront with Lambda@Edge, Amazon DynamoDB, AWS Lambda, and AWS Step Functions. This post provides you with a reference architecture and sample code artifacts to help you deploy and test tag-based invalidation. Let’s look at some use cases where tagging pages together might be […]

Search Engine Optimization (SEO) is the practice of optimizing your website to rank higher on search engine results pages. Since organic search is a primary way for viewers to discover online content, a solid SEO strategy involves optimizing your web application and maintaining good performance. As more than 92% of the internet searches happen on […]

Many types of organizations encounter DDOS attacks daily. DDoS, or Distributed Denial of Service, is an attack pattern that generates fake traffic to overwhelm organisation’s properties (websites, APIs, applications, etc.) and make it unavailable to legitimate users. They majority of these attacks involve a huge burst of fake traffic that exhausts the application’s resources (Memory […]

When we wrote the previous post (Visitor Prioritization on e-Commerce Websites with CloudFront and Lambda@Edge) five years ago, Visitor Prioritization was a relatively new concept. Since then, we saw a huge need for traffic shaping, throttling, and request prioritizing, especially in the gaming and media industries. Of course, e-Commerce sites still require this capability for […]

This post provides a solution to enhance the Amazon CloudFront origin security of on-premises web servers by automating the AWS IP prefix update process for some network firewalls. CloudFront is a content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency and high transfer speeds—all within […]

Earlier this year, we released technical guidance regarding three advanced design patterns for highly available applications using Amazon CloudFront and Amazon Route 53. In this post, we dive deeper into CloudFront origin failover, Amazon Route 53 DNS failover, and the hybrid origin failover approach to further enhance the availability of your web applications. We also […]

Organizations require methods to restrict access to content to adhere to compliance and regulatory requirements, sanctions, privacy laws, territorial ownership rights, security controls, etc. One way that companies restrict access is by Geo-blocking – restricting access to a website or another piece of content based on a user’s location. A popular method of geo-blocking content is […]

While maintaining a web application, sometimes we need to build a simple logic that must  run in low latency. For example, you may want to set up website redirection based on condition, or quickly verify an incoming header. CloudFront Functions is ideal for these use cases since it lets you write lightweight JavaScript code that […]