General Concepts
Using RE2 Regular Expressions
Using RE2 Regular Expressions Introduction VergeCloud firewall rules support advanced filtering using RE2 regular expressions. These patterns help you match specific text — such as parts of URLs, headers, or query strings — to allow, block, or log ...
Securing and Optimising WordPress with VergeCloud Edge Protection
WordPress powers millions of websites worldwide, making it one of the most popular content management systems on the internet. Its popularity, however, also makes it a common target for automated attacks, brute-force login attempts, vulnerability ...
Understanding the Set-Cookie Header
Cookies are an essential part of modern web applications. They allow websites to maintain sessions, remember user preferences, and enable authentication across multiple requests. Since HTTP is a stateless protocol, cookies help create a stateful user ...
Understanding the Host Header
The Host header is one of the most important elements in an HTTP request. It identifies the domain name that the client is trying to reach. When a browser sends a request to a server it includes the Host header so the server knows which website or ...
Migrating Your API Domain to a CDN with 1-Second Caching Strategies
Understanding the Challenge APIs serve as the backbone of modern applications, enabling seamless communication between services. However, slow API response times and high latency can significantly degrade user experience and increase infrastructure ...
Modify HTTP Headers on the Fly with VergeCloud CDN
HTTP headers are a critical part of how web applications and APIs communicate. They carry information that influences authentication, caching, security, content delivery, and traffic management. In many environments, even a simple header update ...
IP Address Classes and CIDR Notation
IP Address Classes IP address classes are part of the classful network architecture that was used before the introduction of CIDR (Classless Inter-Domain Routing). They categorize IP addresses into different classes based on their range and intended ...
Understanding the "Upgrade" HTTP Header and Its Impact on Your Website
What is the "Upgrade" Header ? The Upgrade header is key for applications needing to switch protocols without creating new connections—like WebSockets. By configuring your server and VergeCloud to properly handle upgrade requests, you can maintain ...
Glob Pattern
Glob Pattern Overview Glob patterns are widely used to match addresses in Unix-based systems. They utilize specific meta characters to define portions of an address. In addition to the basic wildcards, you can also use character classes and negation ...