Network Tools Online
Look up IP addresses, ping a server, check open ports, and inspect domain age. Network and security tools live together here because most checks need both.
All tools
Every tool below is free, works instantly, and needs no sign up.
Why network and security tools appear together
Checking a server’s network reachability and checking its security posture are rarely separate tasks. If you are troubleshooting why a site will not load, you often need to check its DNS records, its open ports and its SSL certificate in the same sitting. This page keeps both tool sets together so you never have to switch pages mid investigation.
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Related tool categories
Every category on ConvertNow, each one free and updated as new tools launch.
Understanding Network & Web
What these tools are for, and how to get the most reliable result from them.
Practical network diagnostics
These tools cover the checks that come up when something is not connecting the way it should, is a server reachable, is a port open, is a domain old enough to be trustworthy. They are built for troubleshooting, not deep packet inspection.
See a server the way the internet sees it
An IP lookup, a ping test and a port check together show you what an outside visitor, or an outside attacker, would see when they reach your server. That outside view is often different from what things look like from inside your own network.
Good for troubleshooting, not just curiosity
Use these tools to debug why a site appears down, to verify a mail server is reachable after a DNS change, or to check the domain age of a suspicious link before you click through to it.
Frequently asked questions
Straight answers to what people ask most about these tools.
Is the ping tool run from my browser or from a server?
It runs from our server, so you get a consistent reading of how a target server responds, one that is not skewed by the speed of your own local connection.
Why would a port checker say a port is closed when I expect it open?
This usually means a firewall is blocking that port, the service is not actually running, or the server only accepts connections from specific addresses.
How accurate is the IP lookup tool’s location?
It is generally accurate to the city or region level based on how the IP address block is registered, but it is not precise enough to pinpoint an exact address.
What does domain age actually tell me?
It tells you when a domain was first registered. Combined with other checks, like SSL and DNS records, it can help you judge whether a site looks established or newly created.
Can I check a private, internal IP address?
No, these tools work with public internet addresses and domains. Internal or private network addresses are not reachable from outside your own network.
Why are security tools like SSL and password checks grouped with network tools?
Because checking a domain’s network setup and its security posture usually happen together in practice. Keeping both tool sets on one page saves you from jumping between separate sections for one investigation.
How to use these tools
The same simple flow works across every tool on this page.
Pick a tool from the combined grid
Network and security tools sit together above, so everything for one investigation is in reach.
Enter a domain, IP, or port
Whatever the specific tool is checking.
Review the result
Location data, response time, or an open port status.
Use it to troubleshoot
Confirm what you expected, or spot what is actually wrong.
Syntax and reference
Formulas, formats and quick references used across this category.
Common ports and their use
| 80 | Standard web traffic, HTTP |
|---|---|
| 443 | Encrypted web traffic, HTTPS |
| 22 | Secure remote login, SSH |
| 21 | File transfer, FTP |
| 25 | Outgoing mail, SMTP |
How ping works, in short
Ping sends a small signal, an ICMP echo request, to a server and measures how long the reply takes to come back, in milliseconds. Lower is faster.What an IP lookup shows
General location, internet provider, and the network block (ASN) associated with an IP address. It is an estimate based on regional registration data, not an exact street address.Built to be trusted, every time
No dark patterns, no forced accounts, and nothing you type is kept longer than it takes to give you an answer.
Nothing you enter is stored
Inputs are used only to generate your result, in that moment.
Free, with no catch
No sign up, no trial period, no hidden paywall on any tool.
Works on any device
Every tool is built to work on desktop, tablet and mobile.