Networking & Content Delivery

Category: Best Practices

How to achieve DNS high availability with Route 53 Resolver endpoints

This post assumes a certain level of technical knowledge, including familiarity with DNS terminology, Wireshark, and Amazon Route 53 Resolver endpoints. Introduction The Domain Name System (DNS) is a critical service underpinning nearly the entire internet. As nearly every application begins with DNS resolution, a highly available and performant DNS architecture is crucial for application […]

DNS best practices for Amazon Route 53

Most web services rely on DNS to resolve names to IP addresses and sometimes other pieces of information. Amazon Route 53 provides highly available and scalable recursive DNS resolution, domain registration, and authoritative DNS-hosted zones that include health check capabilities and a broad array of routing capabilities. When using Amazon Route 53, you can scale […]

How to identify website performance bottlenecks by measuring time to first byte latency and using Server-Timing header

While website performance issues are a common occurrence, pinpointing their root causes can be a challenging task. In this post, you will learn how to simplify the performance troubleshooting process by unlocking the potential of the Server-Timing header. This header allows backend components to communicate timing metrics and other insights relevant to performance monitoring in […]

Tenant routing strategies for SaaS applications on AWS

[Update on May 7th 2025] Amazon CloudFront SaaS Manager introduces a new type of distribution called a multi-tenant distribution. A key challenge for SaaS providers is designing secure, scalable tenant routing mechanisms to identify tenants and route requests to appropriate resources. Effective tenant routing ensures isolation, scalability, and security. This post explores strategies for routing […]

IPv6 deployment models for AWS Network Firewall

AWS Network Firewall is a managed, stateful network firewall and intrusion protection service that allows you to implement firewalls rules for fine grained control over your network traffic. If you’re new to AWS Network Firewall, and want to understand its features and use cases, we recommend you review the blog post AWS Network Firewall – […]

How to seamlessly migrate traffic between Direct Connect gateways

In this blog post, we explore a scenario in which Goldman Sachs, wanted to transfer ownership of several of its key network components between teams in a controlled and seamless manner. Specifically, we take a deep dive on migrating traffic between Direct Connect gateways while maintaining end-to-end connectivity. As a multinational investment bank and financial […]

Using Amazon Route 53 Profiles for scalable multi-account AWS environments

Amazon Web Services (AWS) customers implement multi-account strategies so that multiple teams can deploy workloads in separate organizational units (OUs) and AWS accounts. Cloud administrators are using this practice through offerings such as AWS Control Tower and AWS Organizations. These services help them get things done using individual accounts while maintaining centralized control for governance […]

Using latency-based routing with Amazon CloudFront for a multi-Region active-active architecture

An update was made on April 11th, 2024, outlining deployment procedure. This post guides you through setting up the networking layer for a multi-Region active-active application architecture on AWS using latency-based routing in Amazon Route 53 with Amazon CloudFront to deliver a low-latency, reliable experience for your users. Building active-active architectures using AWS networking services improves […]

Orchestrate disaster recovery automation using Amazon Route 53 ARC and AWS Step Functions

Note: To learn more about Amazon Route 53 Application Recovery Controller (Route 53 ARC), we recommend you read Part 1 and Part 2 of the series, and try out the examples. It demonstrates how the ARC service allows you to coordinate failovers and the recovery readiness of your application. In this blog post, we provide […]

Using AWS Transit Gateway Flow Logs to chargeback data processing costs in a multi-account environment

Many AWS customers use consolidated billing, and often need to allocate costs across their internal business units or accounts. This can be challenging when dealing with services that are shared by all accounts. For general chargebacks, some customers use cost allocation tags for this purpose. However, at the time of writing this post, there is […]