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PKPRINCE KUMARinprincekumar-engineer.hashnode.dev·Aug 30 · 22 min read

Realtime Systems: Polling, WebSocket, SSE, and Pub/Sub

How does WhatsApp deliver a message instantly? You send a message to a friend. Within a fraction of a second, their phone shows a notification. There is no refresh button. You do not repeatedly ask t

EExcellantoinexcellanto.hashnode.dev·Oct 13, 2025 · 2 min read

How to Fix GDPR Compliance Gaps and Build Trust with Your Subscribers

Navigating GDPR compliance is a critical problem for any business engaging in email marketing, particularly those dealing with European customers. Failure to comply with these regulations can lead to severe fines and a massive erosion of customer tru...

SVStill Viralinstillviral.hashnode.dev·Jul 3, 2025 · 4 min read

The Digital Shortcut to Fame: Why StillViral Is the Influencer’s Secret Weapon

In today’s fast-paced digital world, social media has evolved from a simple sharing platform into a powerful tool for branding, income, and influence. But as algorithms get smarter and competition stiffer, it’s becoming harder for new creators and sm...