Trial-Tested Internet, SEO, and Digital Marketing Expert Witness
Bill Hartzer has worked in the internet industry since the early commercial days of the web. With more than 25 years of hands-on experience in search engine optimization (SEO), domain names, digital advertising, analytics, and online reputation, he provides expert witness services based on real technical work—not theory.
His role is to help courts understand how search engines, domain systems, social media, and advertising platforms actually behave—and how those systems connect to the facts in a dispute.
Internet & Digital Marketing Expert Witness Services
Bill has been qualified as an expert witness in matters involving SEO performance, domain ownership, online defamation, digital advertising conduct, and analytics data. He is frequently retained to analyze complex digital evidence and explain what happened online in clear, accessible terms.
Representative work includes:
- Evaluating SEO campaigns and alleged SEO fraud or malpractice
- Reviewing WHOIS, DNS, and registrar logs in domain name and domain theft disputes
- Analyzing search results, reviews, videos, and social media in online defamation cases
- Auditing PPC accounts and analytics evidence in digital marketing and advertising disputes
Every engagement is grounded in verifiable data, reproducible analysis, and clear explanations suitable for deposition and trial.
How Law Firms Use Trial Witness
Attorneys rely on Bill when they need a practitioner with real-world digital experience. He has built and optimized websites, managed domain portfolios, run PPC campaigns, and performed forensic investigations into click fraud, analytics irregularities, online reputation issues, and domain theft.
Because of this background, he can bridge the gap between technical data and business impact in a way that is clear to non-technical audiences.
Expert witness services often include:
- Reviewing case materials and digital evidence
- Preparing written expert reports and declarations
- Providing deposition and live trial testimony
- Analyzing search visibility timelines and ranking patterns
- Using structured forensic flows, such as the domain theft forensic workflow
Focused Sub-Service Areas
Click Fraud & Invalid Traffic
Analysis of suspicious clicks, IP clustering, bot behavior, and wasted advertising spend.
Google Ads Malpractice
Review of campaign structure, targeting, reporting integrity, and management conduct.
YouTube & Video Defamation
Evaluation of defamatory video content, visibility, recommendations, and reputation impact.
Analytics Forensics
Investigation of tracking accuracy, funnels, attribution issues, and data integrity.
Discuss a Case Involving Internet, SEO, or Digital Marketing
Disputes involving search visibility, domain ownership, digital ads, analytics data, and online reputation often depend on technical details that aren’t obvious on the surface. Bill reviews the underlying evidence and explains the findings in clear, courtroom-ready language.
Explore additional service pages in the HTML sitemap.
Contact Information
Bill Hartzer
Hartzer Consulting, LLC
www.Hartzer.com
Phone: 214-236-4378
Email: [email protected]
Mailing Address:
100 Kings Fort Parkway, Suite 105-334
Kaufman, Texas 75142 USA