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  1. Copyscape Plagiarism Checker - Duplicate Content Detection Software

    Copyscape is a free plagiarism checker. The software lets you detect duplicate content and check if your text is original.

  2. Copyscape - Products

    An overview of Copyscape's products, including Copyscape Premium and Copysentry.

  3. Copyscape Plagiarism Checker - Intro Video

    Copyscape provides the world’s most powerful and most popular online plagiarism detection solutions, ranked #1 by independent tests. Copyscape is trusted by millions of website owners to check the …

  4. Copyscape Premium - Advanced Plagiarism Search

    Site owners can use Copyscape Premium to track down plagiarism of your site's content. By finding unauthorized copies of your content, you can protect your intellectual property and preserve your …

  5. Copyscape Plagiarism Checker - Generative AI

    Copyscape is the global industry standard trusted by millions of website owners to check the originality of new content, prevent duplicate content, and search for copies of their content online.

  6. Compare Two Web Pages or Articles - Copyscape

    Free comparison of two web pages or pieces of text, powered by Copyscape's technology.

  7. Copyscape - Frequently Asked Questions - FAQs

    Copyscape helps you protect your site against the threats of online plagiarism. The free Copyscape service provides online copyright protection by allowing you to easily search for plagiarism and …

  8. Copyscape - Log In

    Copyscape © 2026 Indigo Stream Technologies, providers of Giga Alert and Siteliner. All rights reserved. Terms of Use

  9. Copyscape - About Online Plagiarism

    Copyscape provides a free service that lets you easily search for plagiarism online and identify instances of content theft. Simply type in the URL of your original content, and Copyscape does the rest.

  10. Copyscape Premium - Sign Up

    Welcome to Copyscape Premium The world's most advanced plagiarism checker Check the originality of content before publishing it online. Paste text directly into the search box, or upload your files. See …