Stephan Spencer
Traffic Control

Stephan Spencer is an internationally recognized SEO expert, Internet entrepreneur, sought-after professional speaker, and bestselling author. He is the co-author of The Art of SEO, author of Google Power Search and co-author of Social eCommerce, all published by O’Reilly. The Art of SEO, now in its third edition and weighing in at nearly 1000 pages, is considered THE bible on search engine optimization, boasts testimonials from such industry giants as Seth Godin and Tony Hsieh, and is even used as a textbook at universities.

Mr. Spencer founded the interactive agency Netconcepts in 1995 and grew it into a multinational SEO firm, with dozens of staff in each of its U.S., New Zealand and China offices. The ecommerce web development (GravityMarket) and email marketing (GravityMail) divisions of Netconcepts were acquired by Acumium in 2008. From 1995 to 2008, Mr. Spencer and his staff built over a hundred e-commerce websites. Mr. Spencer invented a pay-per-click SEO technology called GravityStream which contributed the majority of Netconcepts’ revenue (multiple millions annually) and was used by such e-commerce giants as Zappos and Nordstrom. Netconcepts, including Mr. Spencer's GravityStream technology, was acquired in 2010 by Covario. Covario was in turn acquired by the multi-billion dollar ad agency conglomerate Dentsu Aegis in 2014. After completing his earn-out in 2010, Mr. Spencer continued in the online marketing, ecommerce, and SEO space as a highly sought-after SEO and digital strategy consultant. His clients since the acquisition have included Zappos, Sony Store, Quiksilver, Best Buy Canada, Bed Bath & Beyond, and Chanel, to name a few.

Mr. Spencer has spoken at countless hundreds of Internet marketing events, including all the major conferences in the search and ecommerce industries (SES, SMX, PubCon, Internet Retailer,, eTail, etc.). He’s been a contributor to the Huffington Post, Multichannel Merchant, Practical Ecommerce, Search Engine Land, DM News, Catalog Age, and Catalog Success, among others.

Stephan is on the board of Impact Network, a 501c3 nonprofit which builds and operates schools in Zambia.