1

See: https://urlquery.net/report/65f8f5e7-b346-4980-89ad-ef9690082406

WordPress Version
4.7.5
Version does not appear to be latest 4.8.1 - update now.

WordPress Plugins
The following plugins were detected by reading the HTML source of the WordPress sites front page.

contact-form-7 latest release (4.9)
https://contactform7.com/
revslider
Plugins are a source of many security vulnerabilities within WordPress installations, always keep them updated to the latest version available and check the developers plugin page for information about security related updates and fixes.

Warning User Enumeration is possible
The first two user ID’s were tested to determine if user enumeration is possible.

ID User Login
1 None walik
2 None
It is recommended to rename the admin user account to reduce the chance of brute force attacks occurring. As this will reduce the chance of automated password attackers gaining access. However it is important to understand that if the author archives are enabled it is usually possible to enumerate all users within a WordPress installation.

Vuln. jQuery library: http://retire.insecurity.today/#!/scan/3c86a420c6e77837a99c86342e30e582adc17a834c9898c1a3a529dd323a3d6a

more issues: http://www.domxssscanner.com/scan?url=http%3A%2F%2Fsommerfeld-limousinen.de%2F

F-grade status: https://observatory.mozilla.org/analyze.html?host=sommerfeld-limousinen.de

A meagre 38% score here: https://en.internet.nl/domain/sommerfeld-limousinen.de/96056/

polonus (volunteer website security analyst and website error-hunter)