ELSTER · Government · Germany
ELSTER is the official German government online tax portal providing digital tax filing and related services to individuals, employers, and other user groups. The website offers a comprehensive suite of services including form submissions, digital document management, and user account functionalities. It targets a broad audience including private persons, businesses, and tax professionals. The platform is positioned as a trusted government service with a strong emphasis on security and user guidance. Technically, the site uses modern JavaScript libraries for cryptography and file handling, is hosted on reputable infrastructure providers including Akamai and Deutsche Telekom, and implements HTTPS with session management and CSRF protections. However, explicit privacy and cookie policies are not visible on the start page, and no public security or incident response policies are published. Overall, the site demonstrates a high level of professionalism, security awareness, and user-centric design, suitable for its critical government function.
Scanned
Both readouts depend on the site's pages, which could not be loaded in this scan.
No critical or high findings. These medium findings are worth fixing next.
SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.
DKIM adds cryptographic signatures to emails
What to do: Configure DKIM with your email provider
MTA-STS enforces TLS for email delivery
What to do: Implement MTA-STS to prevent downgrade attacks
DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.
DNSSEC is not configured for this domain
What to do: Enable DNSSEC to prevent DNS spoofing attacks
Domain can be transferred without authorization
What to do: Enable domain transfer lock for security
This scan found 9 issues across 4 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.
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Email alerts on material changes and an exportable JSON history of every change.
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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.
Each check with its score, findings and the evidence it collected.
The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.
Counted in this score
Not counted
Findings that cap the score at 49
Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.
Partial scans
When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.
Risk levels
Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.
Leaked records that mention elster.de, from OffSeq Breach.
22 subdomains affected
See the 10 newest leaked credentials
A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for elster.de.
Select it in the checkout above.
Breach keeps ingesting new leaks, so these numbers can grow between scans.
Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.
Automated reading of the public site. Ratings are indicative.
Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.
Retrieved 2026-10-25
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