IT Dukes
IT Dukes Insights
Data-driven research on email deliverability, AI development, cybersecurity, and modern development practices. Free AI-powered tools and actionable insights backed by real-world data.
Featured insights
- Why December Email Replies Drop — Industry data shows December conversion rates drop from 6.1% to 2.9% while email volume surges 30%+. Learn why this is seasonal, not a deliverability failure.
- Why Sending Time Patterns Trigger Spam Filters — Research shows 30-40% of email opens are from security bots. Learn how AI-driven filters detect automation and what the 0.3% spam threshold means for your campaigns.
- Email Domain Warmup Strategies That Actually Work — A step-by-step guide to warming up new email domains, including volume schedules, engagement tactics, and common mistakes to avoid.
- SPF, DKIM & DMARC: The Complete Technical Guide — Deep dive into email authentication protocols. Learn how to properly configure SPF, DKIM, and DMARC records to maximize deliverability.
- Cold Email Deliverability: What the Data Shows — Analysis of cold email performance metrics, including inbox placement rates, optimal sending volumes, and content patterns that avoid spam filters.
- Understanding Gmail's Promotions Tab Algorithm — Research into how Gmail categorizes emails into Primary vs Promotions tabs, and strategies to improve your chances of landing in Primary.
- How to Identify and Prevent Phishing Attacks — Learn to recognize phishing emails, understand attack vectors, and implement security measures that protect your team from credential theft and data breaches.
- Secure Coding Practices for Web Developers — Essential security practices every developer should follow: input validation, authentication best practices, OWASP Top 10, and secure API design patterns.
- API Security: Authentication, Rate Limiting & Beyond — Comprehensive guide to securing REST and GraphQL APIs including JWT best practices, rate limiting strategies, input sanitization, and preventing injection attacks.
- Vibe Coding: The Future of AI-Assisted Development — Learn how vibe coding is revolutionizing software development. Understand prompt-driven development, AI pair programming, and how to 10x your productivity with tools like Cursor, Bolt, and Claude.
- AI Coding Assistants: Complete Comparison Guide — In-depth comparison of the best AI coding tools in 2025. Features, pricing, strengths, and which one to choose for your workflow.
- Prompt Engineering for Developers — Master the art of prompting AI coding assistants. Learn techniques for code generation, debugging, refactoring, and building complex features with AI.
Free tools
Browse all 24 free email deliverability, SEO, and productivity tools.