生存时间 (TTL)是指数据包在被路由器丢弃之前可能通过网络的时间长度或“跃点”,或者内容或查询在 DNS 和 CDN 缓存中保留多长时间。 当您了解 TTL 的含义时,您必须区分域名系统 (DNS) TTL 和内容交付网络 (CDN) TTL。DNS TTL 指示DNS 解析器在请求新查询之前缓存查询所需的时间。此信息存储在处理 TTL 的递...
How Does TTL Work? TTL's basic function revolves around managing information packets in relation to DNS requests. When one of these packets is created and transmitted through the internet, there is a chance that it will pass, continuously, from router to router forever. To prevent this from ...
What does DNS mean? DNS stands for Domain Name System. This system uses designated authoritative nameservers to map domain names to numerical IP addresses. Often referred to as the phone book for the internet, DNS contains a record of the 1) domain name 2) the associated numerical IP address...
these updates need to propagate across the internet. This process, called DNS propagation, occurs because cached records in various DNS resolvers take time to expire. Propagation times can range from a few minutes to 48 hours, depending on the TTL (...
How does DNS work? Every query (sometimes called a DNS request) in the DNS follows the same logic to resolve IP addresses. When a user enters a URL, their computer progressively queries DNS servers to locate the appropriate information and resource records to address the user’s request. Th...
DNS, short for Domain Name System, helps direct traffic on the Internet by connecting domain names with actual web servers. Learn more in this guide.
How Does DNS Work? The Internet depends on DNS functioning correctly. Every web page, email sent and picture received relies on DNS to translate a human friendly domain name to an IP address used by servers, routers and other networked devices. When you use the Internet, it all starts with...
How Does TTL Work? Time-to-Live (TTL) works by setting a counter or timestamp on data to manage its lifetime across different systems and applications. The specific implementation of TTL varies depending on the context in which it is used, such as in networking, DNS, caching systems, or...
1. What does CDN mean? A content delivery network is a network of interconnected servers and data centers that distribute services to end users. They help improve the quality of streaming by lowering latency hence speeding up your streams and improving their quality. ...
How does DNS traffic management work? When a client device initiates a DNS query, a DNS traffic manager selects an IP address from an available pool of IP addresses based on certain criteria, predefined rules, or algorithms. DNS traffic management or steering criteria fall into static and dynam...