IT Forensics · OSINT

Conducting a forensic WHOIS search – analysing domain owner information in a forensically verifiable manner

WHOIS databases contain registration information on domains; whilst the scope of this information has been increasingly restricted by data protection regulations, it can still provide important clues regarding the date of registration, the registrar and, in some cases, contact details.

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We carry out structured research into WHOIS data as part of existing cases and document the results in a manner that is forensically verifiable.

Why LanCologne?

Since its foundation, LanCologne has specialised in professional IT forensics. Our staff have decades of experience in the field of information technology and assist companies, solicitors, private individuals and, on a regular basis, the courts in the technical investigation of complex digital matters.

Our OSINT investigations are always carried out as a complementary component to existing IT forensic, legal or internal corporate enquiries. Every step of the investigation and every piece of digital evidence found is documented and, where technically possible, archived to ensure traceability even if the original online content is subsequently altered or deleted.

Our services

We investigate current and, where available, historical WHOIS data for a relevant domain and document this in a manner that is forensically verifiable.

Typical areas of application

Identifying the date of registration and the registrar of a domain
Supplementary information on domain disputes and phishing investigations
Support in investigating the infrastructure behind cyber attacks
Verification of a website’s ownership
Judicial and non-judicial expert reports
Collaboration with solicitors and IT security teams

How a WHOIS search works

We systematically retrieve available WHOIS data for the relevant domain, check historical records for previous registration details and document the results in a chronological order that can be easily traced.

Why is a WHOIS search relevant in a forensic context?

Even where the current registration details have been anonymised, WHOIS data may still contain useful historical information drawn from past records.

The date on which a domain was registered can also provide important clues as to when an incident took place, for example in the case of phishing domains.

Frequently Asked Questions

Is WHOIS data still fully accessible to the public today?+
The scope of data available for public viewing has been restricted by data protection regulations and is assessed on a case-by-case basis.
Can anonymised domain owners still be identified?+
This is not always the case, but historical data or technical infrastructure characteristics can provide additional clues.
Is the technical infrastructure of the domain also included?+
Yes, in addition, DNS and hosting information is often analysed to gain a more complete picture.

LanCologne – IT Forensics OSINT Cologne

Do you require a professional OSINT investigation into „conducting a forensic WHOIS search"? LanCologne can assist you with the transparent, documented analysis of publicly available digital sources to support your IT forensic, legal or internal corporate enquiries.

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