Vyara Stefcheva

Vyara Stefcheva

Founder & Editor, Egorithms · Independent marketing expert

Vyara Stefcheva is the founder and editor of Egorithms and an independent marketing expert. She follows how technology, AI and algorithms change the way people find, choose and buy, and writes about what that means for businesses and for the people who use them.

She has spent her career building marketing and business strategies for more than 300 brands across three continents. She built and exited a marketing agency and now works independently. She has taught more than 20,000 people through lectures, courses and corporate training, and speaks at conferences about AI and the future of the internet.

On her YouTube channel she tests new AI and marketing tools as they launch and gives each an independent verdict: adopt, watch or ignore.

Author Archives: Vyara Stefcheva

How Claude’s Text Watermark Works: What It Detects, What Survives and Who Can Check It

How Anthropic's Claude watermark works, what survives editing, what it can't prove, who can detect...

How AI Search Decides Who to Cite: Query Fan-Out, Passages and Entities Explained

Query fan-out, passage retrieval and entities explained. How Google AI Mode and AI assistants choose...

How AI Visibility Tools Really Measure Prompts: Semrush vs. Ahrefs vs. Google (2026)

Semrush estimates prompt demand, Ahrefs audits AI answers, Google shows impressions. What each AI visibility...

Why Ads Keep Getting More Expensive in 2026: Meta, Google and the AI Effect Explained

Meta's price per ad is up 12% and Google CPC hit $5.42. How AI, automation...

How ChatGPT Ads Work: A Guide to OpenAI’s Ads Manager, Now Open Across Europe

ChatGPT Ads are open to self-serve advertisers across Europe. Who sees them, how targeting works,...

NFT Scams Targeting Artists on Instagram: How They Work

A fake collector offers thousands for your art as an NFT, then asks for a...

How to Spot a Fake Crypto Exchange: Warning Signs and Checks

How fake crypto exchanges and trading apps work, the warning signs, how to check a...

What Is High-Tech Manufacturing? How It Works and Where It Is Used

What high-tech manufacturing is, which industries count under Eurostat and OECD rules, the technologies used,...

Botev Plovdiv Becomes the First Elite Football Club to Adopt Bitcoin and Nostr

Botev Plovdiv Becomes the First Elite Football Club to Adopt Bitcoin and Nostr Effective immediately,...

Return Finance launches fully compliant high-yield savings application in 27 European Countries

Fintech company Return Finance has been granted Virtual Asset Service Provider (VASP) authorization from regulatory...