DNS & Networking Blog
In-depth guides on DNS management, email security, domain administration, and network troubleshooting — written for developers and IT professionals.
What You'll Find Here
The Get DNS INFO blog publishes practical, detailed guides on the topics that matter most to anyone managing domains, email, or network infrastructure. Our articles go beyond surface-level introductions to provide the depth and specificity needed to actually solve problems and make informed decisions.
Whether you are troubleshooting why emails are landing in spam, trying to understand DNS propagation during a hosting migration, setting up email authentication for the first time, or investigating a suspicious domain, our guides provide step-by-step explanations with real examples you can apply immediately.
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All articles on this blog are written by our team of network engineers and DNS specialists based on direct professional experience. Content is regularly reviewed and updated to reflect current DNS standards, email authentication requirements, and best practices. Each article is original, written in-house, and checked for technical accuracy before publication.
All Articles
12 articles
What is DNS? A Complete Guide to the Domain Name System
Learn how DNS works, why it matters for every website and email, and how domain names are translated into IP addresses. A comprehensive guide for beginners and professionals.
DNS Propagation Explained: How Long Does It Take and How to Speed It Up
Understand why DNS changes take time to propagate worldwide, what affects propagation speed, and proven techniques to minimize propagation time when changing DNS records.
Email Authentication: SPF, DKIM, and DMARC Explained
A comprehensive guide to SPF, DKIM, and DMARC email authentication records. Learn how each protocol works, how to configure them correctly, and how they protect your domain from email spoofing.
WHOIS Lookup: How to Find Domain Registration Information
Learn how to use WHOIS lookup to find domain ownership, registration dates, expiry dates, registrar details, and nameservers for any domain name. A complete guide to reading WHOIS records.
DNS Security Best Practices: Protecting Your Domain from Attacks
Learn the essential DNS security measures every domain owner should implement — including DNSSEC, registrar locks, monitoring, and email authentication — to protect against hijacking and spoofing.
IP Address Lookup: Understanding Geolocation, ISP, and Network Data
Learn how IP address lookup works, what information it reveals about any IP, how accurate IP geolocation is, and practical uses for IP lookup data in networking and security.
SSL/TLS Certificates and HTTPS: A Complete Guide for Website Owners
Understand how SSL/TLS certificates work, why HTTPS is essential for every website, how to choose the right certificate type, and how DNS relates to certificate issuance and validation.
Domain Registration Guide: How to Choose, Register, and Manage Your Domain
A complete guide to domain registration — how to choose the right domain name, select a registrar, understand pricing, manage renewals, and avoid common domain registration mistakes.
Content Delivery Networks (CDN): How They Work and DNS's Role
Learn how Content Delivery Networks work, how DNS enables CDN routing, the difference between Anycast and DNS-based routing, and how to configure your domain's DNS for a CDN.
Network Diagnostics: Essential Tools and Techniques for Troubleshooting
Master the essential network diagnostic tools — ping, traceroute, dig, nslookup, curl, and more — to troubleshoot connectivity issues, DNS problems, and network performance effectively.
Internet Speed Tests: Understanding Your Results and What They Mean
Learn what download speed, upload speed, and latency (ping) actually mean for real-world internet performance, what speeds you need for different activities, and how to interpret speed test results accurately.
Website Performance Optimization: DNS, CDN, and Caching Strategies
Learn how to optimize website performance through DNS configuration, CDN implementation, browser caching, and server-side optimizations. Practical strategies for measurably faster load times.
Put Your Knowledge Into Practice
The best way to understand DNS is to inspect it directly. Our free tools let you check real DNS records, monitor propagation, verify email configuration, and investigate any domain instantly.