How to Professionally Vet Someone Yourself – Without an Expensive Detective

How to Professionally Vet Someone Yourself – Without an Expensive Detective

Do you want to know if your new business partner is reputable?
Is your date really single?
Or whether the potential roommate has a clean past?

Previously, you needed an expensive private investigator for this (often €800–2000). Today, you can use publicly available sources and clever OSINT methods. professional reviews Do it yourself — legally and cost-effectively.

In this comprehensive guide, I will show you the complete process that will allow you to thoroughly screen almost any person by 2026.

Why self-checks are becoming increasingly important

Fraud, false identities, and hidden problems are commonplace. Whether dating, renting, dealing with business partners, or making new friends—a thorough background check protects you from financial losses and disappointment.

Important: Everything you learn here is based on publicly available information. Illegal methods (hacking, stalking, spying) are punishable by law.

The professional 7-step check

Step 1: Confirm identity & basic data

• Full name, date of birth, place of birth
• Current and previous addresses
• Telephone number and email addresses

Tools: The Local Directory, 11880.com, Google

Step 2: Social Media & Digital Footprints

• Find all profiles (WhatsMyName.app)
• PimEyes for facial recognition
• Reverse Image Search
• Check the consistency of the life story

Step 3: Professional background

• LinkedIn & Xing
• Commercial Register (www.handelsregister.de) — Company holdings, insolvencies
• Google Docs: ""Name" "Managing Director" OR "Owner""

Step 4: Financial and legal situation

• Schufa credit report (possible if there is a legitimate interest)
• Land register extract (via notary)
• Insolvency register and enforcement portal
• Register of Associations

Step 5: Relationships & Private Life

• Previous partners, children, divorces
• Discreetly ask mutual acquaintances
• Analyzing old photos and posts

Step 6: Warning Signs & Red Flags

• Frequent moves without any apparent reason
• Contradictions in the biography
• Financial problems
• Conspicuous gaps in the resume
• Avoiding meetings or video calls

Step 7: Final Assessment

Create an overview: green, yellow, and red flags. Then make a conscious decision.

The best free & inexpensive tools of 2026

• WhatsMyName.app — Username search
• PimEyes — Facial recognition
• Maltego Community — visual link
• Google Dorks — advanced search
• Holehe — Email verification
• Truecaller — Phone number
• Handelsregister.de — Companies
• OSINT Framework — Tool collection

Pro tip: Combine the tools. A single tool is rarely sufficient.

Practical examples

Example 1 – New Partner
A woman checked out her new boyfriend. Using PimEyes and WhatsMyName, she found out that he was still married and living under two names.

Example 2 – Business partners
A man wanted to start a company with someone. In the commercial register he found two old bankruptcies — the deal fell through.

Example 3 – Roommates
A student discovered through social media and old posts that the applicant had repeatedly attracted attention for disturbing the peace.

Legal limits in Germany

• Searching for public information = legal
• Systematically collecting and storing personal data = grey area (GDPR)
• Stalking, unauthorized video surveillance, password cracking = punishable

A sure rule: Use this information only for your own decision-making and then delete it.

FAQ – Frequently Asked Questions

Question: How much does a professional self-assessment cost?
Answer: With the aforementioned tools, usually under €20–50 (for PimEyes Premium).

Question: Is it really possible to find everything?
Answer: Yes, in 80–90% of people. Extremely cautious or very private individuals are more difficult to screen.

Question: Is it morally justifiable to test someone like that?
Answer: Yes, when it comes to your safety, money, or children. Transparency protects both sides.

Question: What do I do if I find something bad?
Answer: Gather evidence, break off contact, and decide whether you want to confront the person.

Question: Do I need programming skills for this?
Answer: No. Most tools are user-friendly.

Conclusion

Conducting a professional background check is no longer rocket science. With a systematic approach, the right tools, and some time, you can achieve results that previously only expensive private investigators could deliver.

The most important finding:
Trust is good — but informed trust is better.

Use this knowledge responsibly. Not for spying, but to protect your future, your money, and your heart.

Further links:

• Here's how to check out your new partner in 24 hours
• Private detective for €0
• Infidelity exposed

You are the investigator.
Now you have the tools — the rest is in your hands.