StackPath Blog

Cache poisoning is the replacement of legitimately cached web content with spoofed, malicious or fake data.

​Content caching is the temporary storage of files on servers that are physically closer to end users.

A content delivery network (CDN) is a collection of global servers that caches and delivers web content.

​Lazy loading is a technique for loading web content when it’s needed rather than all at once.

Critical rendering path refers to a series of events a browser goes through to display the initial view of a web page.

​Cross-origin resource sharing (CORS) is a standard for accessing web resources on different domains.

CWND and RWND are TCP state variables used to regulate data flow in TCP connections.

Defense in depth is the principle of having multiple layers of security to ensure the protection of a system.

Dynamic analysis is a debugging method that evaluates a program during execution.

​Gzip is a bandwidth optimization tool that compresses data before delivering it over the web.

Anycast is a routing methodology that sends packets to one node out of a group of potential nodes. Learn examples and benefits of Anycast.

Binary hardening protects against common binary attacks, carried out via the insertion of a binary file. Learn how binary hardening works along with examples.

Cache hit ratio is the number of requests delivered by the cache server, divided by the total number of requests. Learn how to measure cache hit ratio.

CSRF is an attack that causes a browser to execute an action on a site for which the user is currently authenticated. Learn more about CSRF with examples.

Cross-Site Scripting (XSS) is a web application vulnerability that lets attackers insert client-side scripts on web pages. Learn how it works with examples.

The Domain Name System (DNS) associates a computer-readable IP address to a human-friendly domain name. Learn more about DNS types, examples and benefits.

Domain sharding is a technique for splitting resources across multiple domains to improve page load time. Learn how it works with examples.

Dynamic content is content that changes based on user access time, user preferences and personal information. Learn how dynamic content works with examples.

HTTP Strict Transport Security (HSTS) forces users to communicate with servers through HTTPS only. Learn how HSTS works including examples and benefits.

IPFS is a hypermedia protocol ​addressed by content and identities instead of traditional location addressing. Learn how IPFS works with examples.

​Keep-Alive is a header that maintains a persistent connection between a client and server. Learn more about the functionalities of keep-alive and its benefits.

Minification is a bandwidth optimization technique that reduces the size of code transmitted over the web. Learn more about its techniques, tools and benefits.