Visual Trace Route Tool - Find, Track, and Map the Route to an IP Address Awaiting IP trace initialization. The visual tracert tool displays the path Internet packets traverse to reach a specified destination. The tool works by identifying the IP addresses of each hop along the way to the destination network address. To get more specific info about an IP address you can use this IP tracer tool from IP-Tracker.org. The estimated geophysical location of each hop is identified using MaxMind's GeoIP database. After all of the hops locations' are identified, the path to the destination is plotted on a Google Map. Concerning trace routes The Internet is a large and complex aggregation of network hardware connected together by gateways. Every time a host forwards a packet, it decrements the TTL value of the packet by one. A “trace route” works by increasing the TTL value of each successive packet sent. Unfortunately for those performing trace routes, sometimes hosts will just drop the last packet and not return a destination unreachable response.
Webmastering - Ergonomie d'un site web Décembre 2016 Définition L'ergonomie est l'utilisation de connaissances scientifiques relatives à l'homme (psychologie, physiologie, médecine) dans le but d'améliorer son environnement de travail. Appliquée au domaine du web, l'ergonomie d'un site web peut être définie par sa capacité à répondre efficacement aux attentes des utilisateurs et à leur fournir un confort de navigation. La principale difficulté que tente de lever l'ergonomie est la diversité des profils des visiteurs. attentes de l'utilisateur : tous les visiteurs du site ne recherchent pas nécessairement la même information ou n'ont pas nécessairement les mêmes exigences en terme de graphisme. habitudes de l'utilisateur : elles correspondent à des comportements acquis. âge de l'utilisateur : il caractérise en général la capacité d'adaptation de l'utilisateur et sa rapidité de navigation. équipements : il s'agit d'une des difficultés majeures. Caractéristiques humaines Les trois types de mémoire sont fortement liés.
Cloud Performance Analyzer (NEW!) CDN Performance Analyzer Discover how CDNs can improve web application performance around the world Modern web applications are very often a mix of elements provided by both the application’s owner and third-parties service providers. For example, even a simple e-commerce application might include a shopping cart from one service provider, directions from a map provider, advertisements from an ad service provider, personalization from a recommendation service, usage of a content delivery network (CDN), and web analytics. The existence of some of these third-party services will be obvious to even the casual user: Google Maps, for example, has a distinct look and feel--and carries the Google logo. Others are much less obvious or completely anonymous to all but the most sophisticated user. We call these web applications “borderless applications” to highlight their dependency on services that are outside the organizational and geographic “borders” of the applications’ owners. Methodology