” Bill Hartzer INTERNET DEFAMATION EXPERT
Internet Defamation Expert Witness & Investigator

Bill Hartzer — Internet Defamation Expert

Twenty-five-plus years investigating how content moves across social media, search engines, and the open web. I help attorneys, businesses, and individuals document defamatory content, identify anonymous posters, quantify reputational harm, and clean up the damage — before the evidence disappears.

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Who I Help

Expert Analysis for Attorneys, Businesses, and Individuals

Attorneys & Law Firms

Expert witness reports, forensic internet investigations, technical attribution analysis, and clear testimony that judges and juries can follow — in defamation, business tort, and online harassment matters.

Businesses

Investigation and documentation of defamatory reviews, competitor attacks, and coordinated social media campaigns, plus damages analysis tied to search visibility, traffic, and revenue.

Individuals

Practical guidance for anyone who believes they're the target of internet defamation: what to preserve, how to document it, and how Hartzer Consulting can help clean up the damage.

Services

How I Can Help

My work sits at the intersection of technical SEO, internet investigations, and expert witness testimony. Each service area below reflects a distinct type of engagement I handle regularly.

Social Media Defamation Investigations into defamatory posts, comments, and messages on Facebook, Instagram, X/Twitter, Reddit, and other social platforms. YouTube & Video Defamation Video and comment defamation, evidence preservation and authentication, deepfake claims, and livestream/TikTok matters. Anonymous Poster Identification Technical attribution, John Doe subpoena support, sock-puppet investigations, and cross-platform identity correlation. Online Review Defamation False and defamatory reviews on Google, Yelp, Glassdoor, Ripoff Report, and other review and complaint platforms. Online Reputation Management & Defamation Cleanup Search result cleanup, negative review response, content takedowns, and ongoing reputation monitoring — delivered through Hartzer Consulting. Damages & Reputational Harm Analysis Quantifying business, personal, and search-visibility harm caused by defamatory content for litigation and settlement. If You Believe You're a Victim of Internet Defamation What to do right now: preserving evidence, documenting a timeline, and the first steps that make or break a case.
Why This Work Is Different

Twenty-Five Years at the Intersection of Search, Data, and the Internet

Most consultants who touch internet defamation matters come at it from one direction — either the legal side or the technical side, rarely both. I've spent more than two decades working with search engines, websites, domain names, web analytics, and internet infrastructure as an SEO (Search Engine Optimization) and technical consultant, and that background is exactly what internet defamation matters require: someone who understands how content is indexed, cached, archived, shared, and traced back to its source.

I am not an attorney. I don't provide legal advice, and I don't tell anyone whether a statement meets the legal definition of defamation in their jurisdiction. What I provide is the technical and investigative foundation — evidence preservation, platform analysis, attribution research, and damages documentation — that attorneys and their clients need to evaluate and pursue a claim.

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Start Here

If You Think You're a Victim of Internet Defamation Right Now

The single most common mistake I see: waiting too long to preserve evidence. Defamatory posts, profiles, and reviews get deleted, edited, or taken down — sometimes within hours — and in most cases the Wayback Machine at archive.org has not captured them. If you believe you're currently a target, start with the victim response guide below before the content disappears.

Read the Victim Response Guide