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Tech guide · .de domains only

.de Domain Holder Check

Is my domain holder data stored correctly at DENIC?

Check the holder data of your .de domain at DENIC, the registry for .de domains.

Start the check Order AuthInfo2

The problem

Many domain holders no longer know whether the holder data of their .de domain stored at DENIC is still up to date. If communication with the domain provider then stalls as well, it is easy to feel stuck.

Anyone who contacts DENIC directly has to prove a legitimate interest – with documents, waiting times and a lot of back and forth.

There is a much simpler way: DENIC’s public WebWhois interface. As the holder (or an authorised representative) you can use it to check yourself – or at least narrow down – whether the stored data is correct, without a formal request for information.

Step by step: querying DENIC WebWhois

Official DENIC WebWhois (https://webwhois.denic.de/) (opens in a new tab).

  1. Enter the domain and start the lookup

    Open the WebWhois lookup and enter your .de domain. Start the lookup with a click.
    Here is an example response:

  2. If the domain holder is a legal entity (e.g. a GmbH), DENIC shows the holder data directly. This lets you compare address and email with your records.

  3. Natural person: data protection + postcode/email

    If the holder is a natural person, the data stays hidden for data protection reasons. Instead, a notice appears – and as the holder of the domain you can enter the postcode or email address that you believe was used when the domain was registered.

    If your input matches the DENIC data, a link is sent to the domain holder’s email address stored at DENIC. Using this link you can view the holder data for a limited time (typically 48 hours).

  4. Example: DENIC’s reply email

    This is what a DENIC email can look like (DENIC writes it in German). All details and the link are examples – not a real holder key.

    In short: you requested the holder data of the domain via the DENIC lookup and can view it for 48 hours using the link. DENIC sends this email to all email addresses stored for the domain holder. If you did not request the data, you do not need to do anything.

Not sure which email address or postcode is stored? Or you did not receive an email from DENIC despite entering your data? Then please contact your domain provider and have the holder data updated at DENIC via your domain provider.

Why this matters

Order an AuthInfo2 through us

Are you the domain holder or authorised by the domain holder? Then you can order a domain AuthInfo2 here through 1blu business GmbH.

One-off EUR 20.00 net plus VAT

After submitting, we will send you a confirmation email. The order only becomes valid once you click the link in it (double opt-in) – so unauthorised persons cannot place orders on behalf of others.

Billing address

We need the address of the person placing the order for the invoice.

Order placed as *

Required fields are marked with *. After submitting you will receive an email with a confirmation link (double opt-in). Only after clicking it will the order be forwarded to support@1blu-business.de. Placing orders for other people’s domains without authorisation is prohibited and may be prosecuted under civil and criminal law.

Notes

What this tool does not do

We do not query DENIC automatically and do not store any holder data from WebWhois. The guide refers to DENIC’s official interface. The form is used solely for ordering an AuthInfo2 with double opt-in.