Organization
Hartzer Consulting, LLC
Technical SEO, website and domain migration, and domain name consulting firm founded by Bill Hartzer, offering domain name expert witness services through domainnameexpertwitness.com.
sameAs: www.hartzer.com/ · dnaccess.com/
“Bill Hartzer is the founder of Hartzer Consulting and DNAccess, where he advises organizations ranging from startups to Fortune 500 companies on domain names, technical SEO, and internet infrastructure.”
About Bill Hartzer | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Person
Bill Hartzer
Domain name expert witness and founder of Hartzer Consulting and DNAccess, working in domain names and search since the 1990s, with expert witness experience in UDRP, ACPA, and domain ownership matters.
sameAs: www.hartzer.com/about/ · www.linkedin.com/in/bhartzer · www.billhartzer.com/
“He has conducted domain and TLD research since the 1990s, and in 2013 launched one of the first dedicated domain background-check services, Verified.Domains, work that evolved into the domain protection, recovery, and due-diligence services now offered through DNAccess.com.”
About Bill Hartzer | Domain Name Expert Witness - published by Hartzer Consulting, LLC
“Bill Hartzer has worked in domain names and search since the 1990s, and has been retained as an expert in numerous legal matters where domain names and websites were central to the dispute.”
Bill Hartzer | Domain Name Expert Witness (UDRP, ACPA, Cybersquatting) - published by Hartzer Consulting, LLC
Service
Domain Name Expert Witness Services
Expert witness reports, rebuttals, and testimony across six core areas of domain name expertise, provided by Bill Hartzer for UDRP, ACPA, and related domain name disputes.
“Domain name disputes rarely fit neatly into one category — a UDRP matter often involves the same ownership-history and DNS-forensics work as an ACPA case. The pages below are organized by the type of question being answered, so you can go directly to the analysis relevant to your matter.”
Expert Witness Services | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Service
UDRP & Domain Name Disputes
Complaint and response support, bad-faith registration and use analysis, and Reverse Domain Name Hijacking review for disputes filed under the UDRP and URS.
“The Uniform Domain-Name Dispute-Resolution Policy (UDRP) and its faster counterpart, the Uniform Rapid Suspension system (URS), require a complainant to establish three elements: that the disputed domain is identical or confusingly similar to a trademark in which the complainant has rights, that the respondent has no rights or legitimate interests in the domain, and that the domain was registered and is being used in bad faith.”
UDRP & Domain Name Disputes | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Service
ACPA Litigation & Cybersquatting
Federal Anticybersquatting Consumer Protection Act litigation support, typosquatting investigations, and trademark-confusion analysis for U.S. federal court matters.
“The Anticybersquatting Consumer Protection Act (ACPA) is a U.S. federal statute, litigated in federal court rather than through an administrative arbitration panel. It allows for statutory damages, broader discovery, and in rem jurisdiction over the domain itself when the registrant cannot be found or is outside the court's personal jurisdiction.”
ACPA Litigation & Cybersquatting | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Service
Domain Ownership & Forensic Investigation
WHOIS/RDAP history, chain-of-custody reconstruction, registrant attribution, and stolen or hijacked domain investigations.
“Most domain disputes eventually come down to a single question: who controlled this domain at the time in question, and how did that control change? Answering it requires reconstructing registrant history from WHOIS/RDAP snapshots, registrar transaction logs where available, and corroborating sources.”
Domain Ownership & Forensic Investigation | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Service
Domain Valuation & Damages Analysis
Market-context domain valuation and damages analysis for settlement, litigation, and transactional disputes.
“Domain valuation for litigation differs from the valuation used in a typical acquisition negotiation. It needs to withstand scrutiny from opposing counsel and, where relevant, from the court, which means the methodology and comparables need to be documented and defensible, not just directionally reasonable.”
Domain Valuation & Damages Analysis | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Service
Domain Recovery & Security
Recovery of stolen or hijacked domains, registrar dispute support, and preventative domain security consulting.
“A stolen or hijacked domain can disrupt an entire business overnight — email, website, and brand identity often depend on a single registration. Recovery work begins with reconstructing exactly how control was lost.”
Domain Recovery & Security | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Service
Technical DNS & Hosting Forensics
DNS change history, passive DNS, hosting/IP infrastructure, SSL history, and redirect and traffic-diversion analysis.
“Every domain leaves a technical trail: DNS records (A, AAAA, CNAME, NS, MX, TXT), name server changes, redirect chains, SSL/TLS certificate issuance, and hosting or CDN footprints. That trail is often more reliable than WHOIS records, because it is captured independently by third-party monitoring services.”
Technical DNS & Hosting Forensics | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Methodology
Evidence-First Domain Forensics Methodology
A four-step, reproducible methodology for domain name expert witness engagements — data collection, verification, analysis, and conclusions — in which every opinion is tied to a citable source.
“Sources typically include WHOIS/RDAP records, registrar and registry correspondence and logs, DNS zone files and passive DNS, name server and MX histories, SSL/TLS certificate transparency logs, hosting and CDN footprints, domain marketplace records, escrow artifacts, and web archives and screenshots.”
Methodology | Domain Name Expert Witness - published by Hartzer Consulting, LLC
“Ownership signals are cross-checked across independent sources rather than accepted from a single record. Screenshot authenticity and capture dates are validated, and privacy/proxy registration records are reconciled with underlying registrant data when it becomes available.”
Methodology | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Taxonomy
Common Domain Name Matter Types
A taxonomy of the domain name dispute categories Bill Hartzer is most frequently retained for, including UDRP/URS complaints, ACPA litigation, typosquatting, ownership disputes, and brand confusion.
“Disputes filed under the Uniform Domain-Name Dispute-Resolution Policy or the Uniform Rapid Suspension system, on either the complainant or respondent side. Analysis typically addresses registration and use in bad faith, rights or legitimate interests, and identity or confusion between the domain and a trademark.”
Common Matter Types | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Standard
Uniform Domain-Name Dispute-Resolution Policy (UDRP) (UDRP)
An ICANN-administered arbitration policy for resolving disputes over domain names alleged to have been registered and used in bad faith relative to an existing trademark.
sameAs: en.wikipedia.org/wiki/Uniform_Domain-Name_Dispute-Resolution_Policy
“Nearly every contested UDRP case turns on the third element, and bad faith is almost always proven or disproven through exactly the kind of record-based analysis a domain forensics expert provides: registration timing relative to trademark rights, historical use of the domain, prior communications, and patterns across a respondent's broader domain portfolio.”
UDRP & Domain Name Disputes | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Regulation
Anticybersquatting Consumer Protection Act (ACPA) (ACPA)
A U.S. federal statute that creates civil liability for registering, trafficking in, or using a domain name identical or confusingly similar to a trademark with a bad-faith intent to profit.
sameAs: en.wikipedia.org/wiki/Anticybersquatting_Consumer_Protection_Act
“ACPA sets out nine non-exclusive factors courts may consider in assessing bad-faith intent to profit, including the registrant's trademark or intellectual property rights (or lack thereof) in the domain, prior use of the domain in connection with a bona fide offering of goods or services, and intent to divert consumers for commercial gain.”
Bad-Faith Intent to Profit Analysis | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Standard
DNSSEC (Domain Name System Security Extensions) (DNSSEC)
A set of IETF protocol extensions that cryptographically sign DNS records to prevent spoofing and cache-poisoning attacks.
sameAs: en.wikipedia.org/wiki/Domain_Name_System_Security_Extensions
“DNSSEC (Domain Name System Security Extensions) cryptographically signs DNS records to prevent spoofing and cache-poisoning attacks. It is under-deployed relative to its value, in part because misconfiguration can cause a domain to become unreachable.”
DNSSEC & Domain Security Audits | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Concept
Cybersquatting
The practice of registering, in bad faith, a domain name identical or confusingly similar to a trademark or personal name, typically to profit from the trademark owner's goodwill.
sameAs: en.wikipedia.org/wiki/Cybersquatting
“Federal Anticybersquatting Consumer Protection Act litigation support, typosquatting investigations, and trademark-confusion analysis for U.S. federal court matters.”
ACPA Litigation & Cybersquatting | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Concept
Typosquatting
A form of cybersquatting in which domains are registered using misspellings, added or dropped characters, or homoglyphs of an existing brand to capture misdirected traffic.
sameAs: en.wikipedia.org/wiki/Typosquatting
“Typosquatting domains are typically generated through a small number of predictable patterns: single-character omissions or additions, adjacent-key misspellings, transposed letters, added or removed hyphens, and homoglyph substitutions using visually similar characters.”
Typosquatting Investigations | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Concept
Reverse Domain Name Hijacking (RDNH) (RDNH, Reverse domain hijacking)
The abuse of the UDRP process by a trademark holder who brings a complaint in bad faith to attempt to reclaim a domain the holder has no legitimate basis to claim.
sameAs: en.wikipedia.org/wiki/Reverse_domain_hijacking
“Reverse Domain Name Hijacking occurs when a trademark holder brings a UDRP complaint in bad faith, typically to attempt to reclaim a domain the holder has no legitimate basis to claim — often against a domain that predates the mark, or that is a generic or descriptive term the complainant does not actually control.”
Reverse Domain Name Hijacking (RDNH) Analysis | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Concept
WHOIS
A query and response protocol used to look up registration and ownership information for domain names, including registrant, registrar, and name server records.
sameAs: en.wikipedia.org/wiki/WHOIS
“A single current WHOIS or RDAP lookup shows only the domain's present state. Ownership analysis instead assembles a timeline from historical snapshots — captured at registration, at each renewal, and at any point registrant, registrar, or name server information changed.”
WHOIS & RDAP History Analysis | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Concept
Domain Name System (DNS) (DNS)
The hierarchical, distributed naming system that translates human-readable domain names into the technical records used to locate resources on the internet.
sameAs: en.wikipedia.org/wiki/Domain_Name_System
“Passive DNS databases capture DNS resolution history over time, independent of the current live record — making it possible to establish what a domain resolved to at a specific past date even after the records have since changed.”
Technical DNS & Hosting Forensics | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Concept
Domain Hijacking
The unauthorized change of a domain name's registration, typically through account compromise, social engineering, or exploitation of an expired registration.
sameAs: en.wikipedia.org/wiki/Domain_hijacking
“A stolen or hijacked domain can disrupt an entire business overnight — email, website, and brand identity often depend on a single registration. Recovery work begins with reconstructing exactly how control was lost: account compromise, social engineering of a registrar, an unauthorized transfer, or exploitation of an expired registration.”
Domain Recovery & Security | Domain Name Expert Witness - published by Hartzer Consulting, LLC
Concept
Domain Name
An address on the internet that maps human-readable text to technical resources such as name servers and IP addresses, carrying commercial, brand, and evidentiary value.
sameAs: en.wikipedia.org/wiki/Domain_name
“A domain name carries commercial value, brand value, and evidentiary value all at once. Because a domain connects ownership records, technical configuration, traffic, and reputation, disputes over domain names rarely turn on a single fact.”
Bill Hartzer | Domain Name Expert Witness (UDRP, ACPA, Cybersquatting) - published by Hartzer Consulting, LLC
Concept
Expert Witness
A person with specialized knowledge, skill, or experience who provides opinion testimony to assist a court, arbitration panel, or jury in understanding evidence beyond common knowledge.
sameAs: en.wikipedia.org/wiki/Expert_witness
“Bill Hartzer has worked in domain names and search since the 1990s, and has been retained as an expert in numerous legal matters where domain names and websites were central to the dispute.”
Bill Hartzer | Domain Name Expert Witness (UDRP, ACPA, Cybersquatting) - published by Hartzer Consulting, LLC