Unfortunately, due to advertisements and integrations between websites, when you open a web page, it could connect simultaneously to 100 other different sites. If you really wanted to investigate how many websites you are browsing and keep a chronological record of all the connections that are made, you can use a small and simple program called Nirsoft 's DNSQuerySniffer which records all the DNS requests that are made on the PC . It cannot be said that this is useful in a practical sense, but it can be used to find out which connections are activated on the PC while surfing the internet, in real time .
DNSQuerySniffer is a free tool only to download and launch after unpacking it (it may be necessary to run it with administrator privileges by right clicking on it and then selecting the option). The program does nothing but capture network packets so it requires that the WinPcap driver be installed on Windows.
The application displays all DNS requests made in chronological order and you can then order them in alphabetical order or by IP address. The program analyzes all the DNS queries that are made while browsing the internet (in practice the sites to which you connect) and does so until you click on the Stop button in the application window (or if it is closed) . In the Options you can enable automatic scrolling in order to follow the various connections in real time. The program also shows failed connections which can be helpful in finding out if the provider blocks access to some censored or obscured website.
DNSQuerySniffer is another of the Nirsoft programs to sniff the network and intercept information about internet traffic .
Microsoft's SysMon program is another alternative to see how many sites and domains the programs that we are using connect to, to know which connections are established by the computer each time you browse or if you use a certain software. Sysmon must be launched from the command prompt as an administrator.
In reality there would be a nicer way of checking the connections that the computer makes while surfing the internet .
This is Ligntbeam, an extension for Firefox (no longer exists) that shows in a popup, in real time, all the sites to which you connect while browsing, in graphic form. You can therefore understand, at a glance, how many advertising networks are transmitting data.
In this regard, those who care about privacy can avoid not being tracked online by advertising sites.
