Free IT and Network Tools for BC Businesses
Useful tools for IT professionals, business owners, and anyone managing technology in the Lower Mainland. Each tool runs in your browser. Leave an email only if you want a follow-up.
Subnet Calculator
Enter an IP address and CIDR prefix to instantly calculate network address, subnet mask, broadcast address, first and last usable host, and total usable hosts.
Password Strength Checker
Check password strength instantly. Nothing is stored or transmitted.
DNS Record Lookup
Look up live DNS records for any domain.
IP Address Identifier
Identify whether an IP is private, public, loopback, or reserved and determine its class.
Common Port Reference
Quick reference for ports used daily in IT support and networking.
| Port | Service | Protocol | Description |
|---|---|---|---|
| 20 | FTP Data | TCP | File transfer data |
| 21 | FTP Control | TCP | File transfer commands |
| 22 | SSH | TCP | Secure shell and SFTP |
| 23 | Telnet | TCP | Unencrypted remote access (avoid) |
| 25 | SMTP | TCP | Email sending |
| 53 | DNS | TCP/UDP | Domain name resolution |
| 67 | DHCP Server | UDP | IP address assignment |
| 68 | DHCP Client | UDP | IP address requests |
| 80 | HTTP | TCP | Unencrypted web traffic |
| 110 | POP3 | TCP | Email retrieval |
| 135 | RPC | TCP | Windows remote procedure calls |
| 139 | NetBIOS | TCP | Windows file sharing |
| 143 | IMAP | TCP | Email retrieval |
| 161 | SNMP | UDP | Network device monitoring |
| 389 | LDAP | TCP | Active Directory |
| 443 | HTTPS | TCP | Encrypted web traffic |
| 445 | SMB | TCP | Windows file and printer sharing |
| 465 | SMTPS | TCP | Encrypted email sending |
| 587 | SMTP Submit | TCP | Email submission for Microsoft 365 |
| 636 | LDAPS | TCP | Encrypted Active Directory |
| 993 | IMAPS | TCP | Encrypted IMAP email |
| 995 | POP3S | TCP | Encrypted POP3 email |
| 1433 | SQL Server | TCP | Microsoft SQL database |
| 3306 | MySQL | TCP | MySQL database |
| 3389 | RDP | TCP | Remote Desktop Protocol |
| 5060 | SIP | TCP/UDP | VoIP signaling |
| 5900 | VNC | TCP | Remote desktop viewing |
| 8080 | HTTP Alt | TCP | Alternative HTTP and proxies |
| 8443 | HTTPS Alt | TCP | Alternative HTTPS |
On-Page SEO Checklist
Run through this before publishing any page for a BC business client.
Content
Technical
Images
Links
Local SEO
Want a follow-up on these tools?
Leave your email. Company and trade are optional. This form uses the same path as the contact page. The calculators above still run in your browser.
Each tool runs in your browser. What you type into a calculator or lookup is not sent to us. The email form is separate and uses the same contact path as the rest of the site.