General posts
GDPR Quick Facts for DevelopersApplies to any site processing data of EU/UK residents — regardless of where you are basedMaximum fine: €20 million or 4% of…
JAY
Why HTTP Security Headers Matter HTTP security headers are directives your web server sends with every response that tell browsers how to behave. They prevent XSS attacks, clickjacking, protocol downg
JAY
What Is a Port Scanner? A port scanner sends connection requests to TCP ports on a host and records which ones respond. Open ports indicate active services. Check your server: Port Scanner Which Ports
JAY
What Is WHOIS? WHOIS is a query protocol that retrieves information about registered domain names, IP addresses and autonomous systems. Every domain registered anywhere in the world has a WHOIS record
JAY
What Happens When Your SSL Certificate Expires? The moment your SSL certificate expires, every visitor to your website sees a bright red warning page: "Your connection is not private." Most visitors i
JAY
What Is an IP Blacklist?An IP blacklist (also called a DNSBL — DNS-based Blackhole List) is a real-time database of IP addresses known to send spam, host…
JAY
How to Accept PayPal DonationsYou just need a PayPal account and a donation link. When someone clicks it, they go to PayPal's secure payment page and choose…
JAY
What Makes a No-Referrer URL Shortener Different?Standard URL shorteners create shorter links but still pass the Referer header — revealing which page sent…
JAY
What Makes Our URL Shortener Different?Most shorteners simply redirect. Ours also strips the HTTP Referer header on every click, includes a QR code, and lets…
JAY