Unless it would fall under "fair use" no it is not "okay" to use copyrighted material without permission
The copyright holder, or anyone the copyright holder authorizes.
No. Public domain means that the material is available for use by anyone, without copyright restriction.
You may use copyright protected material when you are the copyright holder, or when you have permission from the rightsholder or an exemption in the law. The most notable exemption is fair use or fair dealing, which allows certain limited unlicensed uses in situations such as education and commentary.
Contact the copyright holder and request permission.
A) Use only original material B) Use only material confirmed to be in the public domain C) Find the copyright holder of any other material and, in writing, obtain the necessary permissions.
Infringement is the use, without permission, of copyrighted material that does not fall under a "fair use" or other exception to copyright law,
You would be guilty of copyright infringement, a federal crime.
You will find that most material on websites is protected under copyright. The website owner should be able to tell you who the copyright owner is. You would then negotiate a price with the copyright owner to allow you to use their material.
Copyrights protect the "owner" of that material. To use or reproduce it without express approval of the "copyright" holder is illegal. "Copyright Laws'" protect intellectual property from unauthorized use.
Censorship can be used to remove copyright material if the material does not belong to you.
Ask the copyright holder for permission.
It depends on the amount used, how it is used, and more.