Check port availability
Checking the port for accessibility allows you to determine the level of computer protection against network fraudsters and hacker attacks. You can do this with the help of special online services, knowing the unique number and address. After accessing the Internet, the device receives a personal ip from the provider, and becomes known by this unique number. Knowing the result of checking the port by IP address, it is easier to understand the “weaknesses” of the used networks and quickly resolve problems.
What is a computer port
Ports, the availability of which is determined by the scanner, open on request when a certain program is going to interact with remote servers. As a result, connection to it becomes possible. Each port has its own reserved number - you can only check it. This is provided by TCP or IP protocol. So, if the browser connects to a port whose number matches the desired site, the browser receives encrypted data in response - this code is displayed as a web resource.
Checking ports for IP accessibility is allowed if an individual address is assigned to a computer or mobile device. You can clarify this information with your provider.
What the ports availability check shows
As a result of checking for openness by IP address, the port may be:
- Closed. Indicates that now it is impossible to connect to the port via the server, respectively, the contents of the computer are reliably protected from hacker attacks and network fraudsters. The “closed” status indicates a high degree of confidentiality. If you want the inaccessible port to be open - the problem is incorrect configuration of the network connection or software. In such a situation it is recommended to check the access rights to the necessary program.
- Open. The openness of the port indicates its accessibility for Internet users and that it is possible to connect to it via a remote server. If this is not required, you should check the running services - probably at this point they are using the port to connect to the network. A common cause of accessibility is exposure to malware. To avoid leaks of personal information, additionally check your computer for viruses.
When checking ports on the server, it is important to consider: if the gadget is connected to the network via a Wi-Fi router, the results of scanning for availability relate directly to the router. You can check the openness inside the subnets by forwarding. This process is a router setup, after which user requests from the Internet are redirected to computers connected to the local network.
You can check the availability of ports by ip address online in our service. In addition to checking openness, many free utilities also show other important information: server location, web page loading speed, privacy level, ping, etc.
Check port by IP address
Using our service, you will quickly check the port for IP accessibility online and determine the readiness of the website to accept connections. In order to start the check, just enter the address in the appropriate line. The scanner will not show not only openness and closeness, but the program that uses the port. Our site works with both TCP and UDP versions.
After checking the availability of ports, you can also find out the current speed of the Internet connection, the ip address of a particular site, the geographical data of the server. This information will help you troubleshoot network problems.