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...
Sep
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...
Sep
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...
Sep
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...
Sep
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,...
Sep
NFT Scams Targeting Artists on Instagram: How They Work
A fake collector offers thousands for your art as an NFT, then asks for a...
Nov
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...
Nov
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,...
Nov
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,...
Oct
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...
May
