Free Business Utilities for
Nigerian Retailers
Calculators, document generators, AI assistants, and retail utilities — all built specifically for shop owners, supermarkets, pharmacies, and SMEs. 100% free, no account required.
IP Address & Geo Location Lookup
Inspect public IP address, ISP provider, country, city, and ASN.
Reverse IP Domain Lookup
Find all websites hosted on a single server IP.
DNS Records Inspector
Query A, AAAA, MX, TXT, SPF, DKIM, NS, and CNAME …
Open Port Checker
Check if specific ports (80, 443, 22, 3306) are open.
Web Ping & Latency Tester
Test server response time and ICMP ping latency.
SMTP Server & Port Tester
Verify mail server connection, SSL/TLS handshake, and response.
SSL Certificate & Expiry Inspector
Audit SSL/TLS certificate issuer, validity period, and expiry.
Bulk Email Syntax & MX Verifier
Verify email list formatting, MX domain records, and bounce risk.
Disposable Temp-Mail Detector
Detect temporary or burner email domains to block fake signups.
Secret Key & Password Generator
Generate strong random passwords and cryptographic secret keys.
Password Strength Evaluator
Test time-to-crack resistance against brute-force attacks.
JWT Token Decoder & Debugger
Decode JSON Web Token headers, claims payload, and signature.
Security Headers Inspector
Inspect HTTP response headers (HSTS, CSP, X-Frame-Options).
Subnet Mask & IP CIDR Calculator
Calculate IP ranges, network address, and broadcast IP.
MAC Address Vendor Lookup
Identify network hardware manufacturer from MAC address.
🎉 Need comprehensive, automatic store tracking?
These calculators and generators are free because we believe in supporting local SMEs. When you're ready to fully automate counter sales, cashier PIN audits, and check true net profit margins, SwiftPOS is here.