Group items tagged

netflow,network anomaly detection, network behavior analysis, network monitoring software,network security software,intrusion detection system,application monitoring software,network delay simualtor

Speedlimit is a Leopard preference pane for limiting your network bandwidth to one of a couple different speeds.

Web developers using high amounts of domain sharding to work around low connection per host limits in old browser should reconsider their number of shards for newer browsers. Anything over 2 is probably too much, unless most of your user base is using older browsers.

"Slowy is a tool which simulates custom connection's conditions and limits the network traffic to a specified destination port. It is created for web developers, like me, who need to test a website with a real-world connection, even on a local server. Slowy is an OSX MenuBar app, so it is lightweight and is placed only on the system topbar. "

SPDY is a replacement for HTTP, designed to speed up transfers of web pages by eliminating much of the overhead associated with HTTP. SPDY supports several optimizations that give it an edge over HTTP when it comes to speed.

"while 75% of the top 100 retail websites employ a Content Delivery Network (CDN), the median home page takes a full second longer to become interactive than the median page that does not use a CDN"

bilan : - les sites US sans CDN délivrent aussi vite que les sites avec CDN - les sites sans CDN sont des sociétés plus petites qui appliquent mieux les recommendations performance web bien sur un CDN sert aussi à absorber la charge, pas juste à distribuer plus vite

There was a time when doing a Website Load Test for a client using a Content Distribution Network (CDN) was an infrequent activity, but these days it's a common occurrence. There are more CDN suppliers of course, the newer ones such as MaxCDN, the traditional big names like Akamai and LimeLight, and some Datacentres such as UKFast offer CDN services directly to clients themselves.

SPDY is awesome. It's the first real upgrade to HTTP in 10+ years, it tackles high latency mobile networks performance issues and it makes the web more secure. SPDY is different than HTTP in many ways, but its primary value comes from being able to multiplex many requests/responses from client to server over a single (or few) TCP connections.