Boris

Boris Pfeiffer is the co-founder and CEO of Riddle.com, a leading platform for interactive quizzes and audience engagement. He brings a wealth of experience from the gaming and tech industries, having previously led Kabam's European operations and founded his own game studio. Earlier in his career, Boris served as General Manager of Monster.com's Internet Advertising Division in Europe. Boris has deep roots in the quiz industry. As General Manager Europe for Tickle.com, he helped scale the popular quiz portal into the world's 28th largest website by 2004, leading to its acquisition by Monster.com for over $100 million. During this time, he managed international teams of quiz writers and psychologists, developing quiz content for brands, mobile apps, and millions of users across Europe in multiple languages. In addition to his work in quizzes and gaming, Boris has supported a variety of startups across Asia, the U.S., and Europe. He is the author of two books - Facebook Fan Pages (2011) and Quizmaster (2017) - and a proud father of two. He has been happily married for over 25 years.

GDPR-compliant quiz maker: how to collect data the right way, with a 12-point checklist for choosing a quiz builder

Data Collection

GDPR Compliant Quiz Maker: How to Collect Data the Right Way

What makes a quiz maker GDPR compliant? Controller vs. processor, consent, cookies, embeds and EU hosting explained in plain language, plus a 12-point checklist to vet any quiz or poll tool.

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15 ways to turn quizzes into first-party data with Riddle’s Data Layer and JS Events, shown over a laptop with an analytics dashboard

Data Collection

15 Ways to Turn Quizzes into First-Party Data with the Riddle Data Layer and JS Events

Riddle's data layer pushes user data into quizzes, and JS Events send every answer back in real time. 15 use cases for publishers and agencies, with code examples.

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News and Reviews, Company Updates

Riddle in the Press: Media Coverage, Press Releases and Reviews

Independent articles about Riddle, our official press releases and Riddle's ratings on G2, Capterra, GetApp, Software Advice and OMR Reviews, all on one page.

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Release Log 2026

Company Updates

Riddle Release Log 2026

New Features & Improvements Our release log is diligently updated each time we introduce new features to our quiz maker – from formats to features and new lead generation options. You can also visit our release log archives for 2023 and 2024 and 2025. Sign […]

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Make your own crossword puzzle

Engagement, Quiz Maker Review, Use Cases

Make A Crossword Puzzle For Your Website

Crossword puzzles keep readers on your page for five, ten, sometimes fifteen minutes - boosting ad revenue, search rankings, and social shares all at once. Here's how to make and embed one in minutes.

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The power of leaderboards. Supercharge your quizzes and contests with leaderboards from riddle.com

Unleashing the power of leaderboards

How to drive motivation and engagement in any setting Leaderboards are the ultimate gamification add-on to quizzes and score predictors, and one of the simplest ways for publishers to turn a casual reader into a returning one. They add a sense of achievement and turn […]

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Blog post about how to create a Big Five personality quiz using the five OCEAN traits

Create a ‘Big Five’ personality quiz

Personality quizzes are the most shared content you can make - and the hardest to get right. Here's how to build a 'Big Five' quiz on the OCEAN model that people actually believe, with results, situational questions, scoring, and a few AI shortcuts.

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Header image for 'Riddle is the best alternative to Buzzfeed' blog post on Riddle.com

Quiz Maker Review

Riddle is the best alternative to Buzzfeed

BuzzFeed vs Riddle: two very different ways to make a quiz If you are searching for the best alternative to BuzzFeed in 2026, the first thing to know is that BuzzFeed and Riddle were built for different jobs. Pick the wrong quiz maker and you […]

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Why should enterprise organizations use the Riddle quiz maker?

Use Cases, Data Collection, Engagement, Monetization

Enterprise Quiz Maker: Create Interactive Content at Scale

Engagement, monetization, and zero-party data in one enterprise quiz maker - 35+ formats, white-label embeds, unlimited usage, and EU-based GDPR compliance.

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143 quiz titles for online quizzes across a range of topics, as well as tips and best practices to crafting compelling quiz titles.

143 proven quiz titles your audience will love in 2026

Six proven quiz title formulas that drive clicks - with examples you can adapt. Learn which patterns work best for personality tests, knowledge quizzes, and product recommendations.

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