Z Shadow is a website that provides illegal links for phishing attempts. As of 2020, the website is no more available in the Google search results page.
Also the domain of this website is not active. Some previously used domains by z shadow are:
z-shadow.com
z-shadow.info
z-shadow.co
Attempts like phishing is illegal. Therefore, It may be possible that the google has removed this website and penalized it from their search engine.
It is also possible that the web hosting provider of this website has terminated the server because of illegal activities.
Due to increasing cyber attacks, Google has removed any unwanted, illegal, and websites promoting cyber attacks are penalized. Shadowave was the only ditto copy of the z-shadow but it has also removed from the search results.
Always avoid visiting illegal, unsafe, malware, unknown websites
If you are making payment then first check whether the website is using HTTPS or not.
Do not open any unknown links, email attachments, or any unknown message.
Do not download software from unknown publishers
Always use Google Play Store for installing apps but don't try any APK files
Never use public Wi-Fi