Blog
Practical guides and data reports on DNS, domains, hosting, SSL, website technology and email security.
How Educational Institutions Verify Student Email Domain Security
Learn how educational institutions verify student email domain security using SPF, DKIM, and DMARC to stop campus phishing attacks effectively.
Acmailer and Self-Hosted Bulk Email Tool Security Risks
Discover how a self hosted bulk email IP risk can destroy your sender reputation. Learn expert mitigation strategies, DNS setup, and blacklist fixes.
Why Your WordPress Site Shows a White Screen of Death and How to Test It
Discover the top causes of the WordPress white screen of death fix guide. Learn how to test your site, troubleshoot PHP errors, and restore access fast.
MailerLite Custom Domain DKIM Configuration and Validation
Learn how to configure and validate your MailerLite DKIM record setup. Follow our step-by-step guide to improve email deliverability fast.
Troubleshooting Broken Subdomains by Inspecting Root HTTP Headers
Master subdomain http header troubleshooting with our expert guide. Inspect root headers, fix redirect loops, and resolve DNS routing errors fast.
Why Your Desired Domain Shows Unavailable and What You Can Do Next
Explore your domain name already registered options. Learn how to check status, find alternative extensions, or securely acquire your ideal domain.
Why Did My Website Go Offline Even Though DNS Records Look Fine
Discover why your website went offline even though your DNS settings look correct. Learn how to check domain expiry, fix outages, and restore uptime.
Understanding Registrar Transfer Lockouts and Expiry Interferences
Learn how to resolve transfer lockout expiration conflict issues when moving domains. Step-by-step guide from network engineers at XiaTools.
How to Fix 'DKIM Check Failed' Warnings in Apple Mail
Troubleshoot and fix apple mail dkim check failed warnings with expert steps, exact DNS record syntax, and our free DKIM Checker tool.
How to Check Domain Availability via Command Line Using Whois and Dig
Learn how to perform a command line domain availability check using Whois and Dig. Follow step-by-step instructions, commands, and troubleshooting tips.
Understanding the Percentage Tag (pct) in DMARC Records
Learn proper dmarc pct tag usage to safely roll out email authentication. Discover exact syntax, common pitfalls, and step-by-step examples.
Comparing Free Versus Premium Reverse IP Lookup Tool Capabilities
Compare free vs premium reverse IP lookup tools to see which fits your needs. Learn about database size, query limits, API access, and accuracy.