Content Attribution and Open Source

Websites rely on content and code from many sources. Understanding copyright, Creative Commons licenses, and open source software licenses helps you use these resources properly and avoid legal problems.

Disclaimer: This guide is for educational purposes only and does not constitute legal advice. For specific questions about copyright or licensing, consult a qualified attorney.

Copyright Basics for the Web

Under U.S. copyright law, original creative works are automatically protected by copyright the moment they are created and fixed in a tangible form. This includes text, photographs, illustrations, videos, music, and software code. You do not need to register a copyright or include a copyright notice for protection to exist, though registration provides additional legal benefits if you need to enforce your rights.

This means that content you find on the internet is generally copyrighted by its creator, even if there is no copyright symbol or notice. You cannot simply copy text from another website, use someone else's photograph, or reproduce someone's illustration on your site without permission -- unless an exception applies (such as fair use, public domain status, or an open license).

What Is Fair Use?

Fair use is a legal doctrine under Section 107 of the U.S. Copyright Act that allows limited use of copyrighted material without permission for purposes such as criticism, comment, news reporting, teaching, scholarship, or research. Courts evaluate fair use on a case-by-case basis using four factors:

  1. The purpose and character of the use (commercial vs. educational, transformative vs. copied)
  2. The nature of the copyrighted work
  3. The amount and substantiality of the portion used relative to the whole work
  4. The effect of the use on the market for the original work

Fair use is not a clear-cut rule. It is a legal defense that is determined by courts after the fact. For a business website, relying on fair use is risky. When in doubt, obtain permission or use properly licensed content.

Creative Commons Licenses

Creative Commons (CC) is a nonprofit organization that provides a set of standardized licenses allowing creators to share their work with specific permissions. These licenses are widely used for images, text, music, and other creative content found online. The main license elements are:

  • CC BY (Attribution) -- You can use, share, and adapt the work for any purpose, including commercial, as long as you credit the creator
  • CC BY-SA (Attribution-ShareAlike) -- Same as CC BY, but any adaptations must be shared under the same or a compatible license
  • CC BY-NC (Attribution-NonCommercial) -- You can use and adapt the work, but not for commercial purposes, and you must credit the creator
  • CC BY-ND (Attribution-NoDerivs) -- You can share the work but cannot modify it, and you must credit the creator
  • CC BY-NC-SA (Attribution-NonCommercial-ShareAlike) -- Combines the NonCommercial and ShareAlike conditions
  • CC BY-NC-ND (Attribution-NonCommercial-NoDerivs) -- The most restrictive CC license: no commercial use, no modifications, credit required
  • CC0 (Public Domain Dedication) -- The creator waives all rights; you can use the work for any purpose without attribution

When using Creative Commons-licensed content on your website, always check the specific license terms and provide proper attribution. A typical attribution includes the creator's name, the title of the work, the license type, and a link to the license.

Stock Images and Fonts

Many website owners use stock image services and web fonts. Each comes with its own licensing terms that you should understand:

  • Stock images -- Services like Unsplash and Pexels offer images under permissive licenses (typically allowing commercial use without attribution, though terms vary). Paid services like Shutterstock and Adobe Stock sell licenses that specify how and where you can use the images. Always read the license agreement.
  • Fonts -- Google Fonts are free and open source under the SIL Open Font License. Other fonts may require paid licenses for web use. Using a font on a website without a proper web license is a copyright violation.

Open Source Software Licenses

If your website is built using any code libraries, frameworks, content management systems, or plugins, those tools are likely released under an open source license. Open source licenses grant you permission to use, modify, and distribute software, but each license has specific conditions. The most common ones include:

  • MIT License -- Very permissive. You can use, modify, and distribute the software for any purpose. You must include the original copyright notice and license text.
  • Apache License 2.0 -- Similar to MIT but also includes a grant of patent rights and requires that modified files carry a notice of the changes
  • GNU General Public License (GPL) v2 and v3 -- Requires that if you distribute modified versions, you must also release your modifications under the GPL. This is known as a "copyleft" license. WordPress, for example, is licensed under GPL v2.
  • BSD Licenses (2-Clause and 3-Clause) -- Permissive licenses similar to MIT with minor variations in their conditions
  • ISC License -- Functionally equivalent to MIT, commonly used in the Node.js ecosystem

For most website owners using open source tools as-is (e.g., running WordPress or using a JavaScript library on your site), compliance is straightforward: keep the license files intact and do not remove copyright notices from the code. If you are distributing modified versions of GPL software, the requirements become more significant.

Practical Steps for Website Owners

  1. Use original content whenever possible -- The safest approach is to create your own text, photographs, and graphics, or hire someone to create them for you (and ensure you have proper rights to the work via a contract)
  2. Check licenses before using anything -- Before adding an image, font, code library, or any other resource to your website, check its license terms
  3. Keep attribution records -- Maintain a record of where you obtained third-party content and what license applies to each item
  4. Provide proper attribution -- When a license requires attribution, include it visibly on your site (e.g., in a credits page, in image captions, or near the content)
  5. Respect the NonCommercial restriction -- If content is licensed under a CC NC license, you generally cannot use it on a business website that promotes your products or services
  6. Do not remove copyright notices from code -- Open source licenses typically require that copyright and license notices remain intact
  7. Respond to takedown notices -- If you receive a DMCA takedown notice, take it seriously and respond appropriately

AI-Generated Content

The legal status of AI-generated content is an evolving area of law. The U.S. Copyright Office has stated that works generated entirely by artificial intelligence without human creative input are not eligible for copyright protection. However, works that involve sufficient human creative control may be copyrightable. If you use AI tools to generate text, images, or code for your website, be aware that the copyright status of that content may be uncertain. Also be cautious that AI-generated content does not inadvertently reproduce copyrighted material from the AI's training data.

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