Bill Sebald
Founder & Managing Partner
Bill is a digital marketer in the Philadelphia area who began working in SEO in 1996. He is a pioneer in the space, introducing SEO concepts and approaches still used today.
Bill led the first group of SEOs at GSI Commerce in Philadelphia, working with clients like the NFL, Toys R Us, Dick’s Sporting Goods, PetSmart, Calvin Klein, and dozens more. Since then, he has supported over 100 brands with SEO consulting.
In 2005, he began offering digital marketing consulting services under the Greenlane banner. In 2012, he relaunched Greenlane into the agency we are today (with the partnership of Keith Urban).
Bill is a speaker and writer who has contributed to Practical Ecommerce, Moz and our blog. If you would like Bill to speak or write for you, you can contact him through this form.
Posts by Bill Sebald
Why AI Doesn’t Rank Pages (And What That Means for Your SEO Strategy)
AI search doesn’t rank pages. It builds answers using trusted entities. Learn how this shift is changing SEO, visibility, and what brands need to do to stay competitive.
AI | SEO
Read MoreBill Sebald
Founder & Managing Partner
Why Ranking #1 Doesn’t Guarantee Visibility Anymore
You can rank #1 in Google and still be invisible. Here’s how AI answers, SERP features, and citation-driven search are reshaping SEO visibility.
AI | SEO
Read MoreBill Sebald
Founder & Managing Partner
Why Your SEO Is ‘Working’ but Your Brand Isn’t Showing Up in AI Answers
SEO isn’t broken; the definition of visibility just changed. We break down why your brand isn’t showing up in AI answers despite good SEO practices.
AI | SEO
Read MoreBill Sebald
Founder & Managing Partner
What Questions to Ask Before Hiring an SEO Agency
Learn the smart questions to ask before hiring an SEO agency so you can vet partners who drive real business outcomes, adapt to modern search behavior, and align with your goals in today’s competitive SEO landscape.
SEO
Read MoreBill Sebald
Founder & Managing Partner
What Does An SEO Audit Include?
Most SEO audits are reports, not diagnoses. Discover what a real SEO audit includes, how it uncovers revenue blockers, and what actually drives recovery and growth.
SEO
Read MoreBill Sebald
Founder & Managing Partner
How LLMs Read Website Content
Learn how LLMs read and interpret website content and how to structure pages for better AI visibility using clear sections, semantics, and modern SEO.
AI | SEO
Read MoreBill Sebald
Founder & Managing Partner
SEO Growth Isn’t Always Linear: The Content Loop Concept
SEO growth isn’t linear—it’s a feedback loop. Learn how to fix broken content processes, and build a continuous system that keeps your content visible in the AI era.
SEO
Read MoreBill Sebald
Founder & Managing Partner
From Clickbait to Citebait: Winning in the AI Citation Economy
Discover how to win in the AI Citation Economy. Learn why citebait—original, structured, factual content—is the new SEO strategy for getting cited in AI Overviews and LLM search results.
AI | SEO
Read MoreBill Sebald
Founder & Managing Partner
What Is User Intent in SEO?
Learn how to align your SEO strategy with user intent to boost rankings, engagement, and conversions. Break down informational, navigational, commercial, and transactional search intent with actionable strategies and examples.
SEO
Read MoreBill Sebald
Founder & Managing Partner
Turning Again: The Unfortunate Future of Organic Clicks From AI Search Results
Google’s AI Overviews are disrupting SEO by reducing organic clicks and reshaping user behavior. Learn how AI Mode, AIOs, and evolving SERPs are impacting traffic—and how SEOs can adapt.
AI | SEO
Read MoreBill Sebald
Founder & Managing Partner
Understanding Index Bloat in SEO and Crawl Budget SEO Issues
Index bloat is when a website has unnecessary pages in the search engine index, costing Google more processing time than is needed. Controlling it is vital.
SEO | Technical
Read MoreBill Sebald
Founder & Managing Partner
How An SEO Agency Can Help in 2025
Search still starts online journeys, but Google’s AI answers now siphon clicks. The SEO game has changed. Winning means showing up inside those answers and in the classic blue-link list. A modern SEO agency gives you the bandwidth, tech, and strategy to do both.
SEO
Read MoreBill Sebald
Founder & Managing Partner
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Greenlane Marketing is a highly experienced PPC and SEO agency trusted by leading Lead Generation, E-commerce, and Media brands. We align SEO, paid media, and analytics to turn search demand into revenue growth. From day one, you’re paired with a dedicated strategist focused on your goals. Choose one-time projects or monthly retainers — whatever fits your needs. Whether it’s E-commerce, B2B, or B2C, you’ll have direct access to our strategy experts every step of the way.
Greenlane Marketing is a highly experienced PPC and SEO agency trusted by leading Lead Generation, E-commerce, and Media brands. We align SEO, paid media, and analytics to turn search demand into revenue growth. From day one, you’re paired with a dedicated strategist focused on your goals. Choose one-time projects or monthly retainers — whatever fits your needs. Whether it’s E-commerce, B2B, or B2C, you’ll have direct access to our strategy experts every step of the way.