How to Cite a Website in Chicago 17 Format

Websites are among the most frequently cited sources in humanities research, yet they present unique challenges in Chicago 17 Notes-Bibliography style. Unlike books or journal articles, web content can change or disappear without notice, making proper citation essential for verifiability. The Chicago Manual of Style 17th edition provides clear guidelines for documenting web sources—including when to use access dates, how to handle missing authors, and how to format URLs. This guide walks you through every scenario you're likely to encounter.

For an overview of all Chicago 17 rules, see our complete Chicago 17th Edition guide.

When to Use Website Citations

Use this format for content published on the open web that is not a journal article, news article, blog post, or other source type with its own Chicago citation format. Common examples include:

• Organizational web pages (university pages, nonprofit sites, government portals)
• Reference pages and informational resources
• Corporate or institutional reports published as web pages
• Personal websites and portfolios
• Pages from encyclopedias or databases that lack formal publication structures

If the source is a formally published article, blog post, or social media post, Chicago has specific formats for those. This guide covers general web pages.

Step-by-Step Instructions

Step 1: Identify the Author

Look for an individual author's name on the page, often at the top or bottom of the content. If no individual is named, use the organization responsible for the content. If no author or organization can be identified, the citation begins with the page title.

Step 2: Find the Page Title

Use the exact title as it appears on the web page. Place it in quotation marks. If the page has no clear title, create a short descriptive phrase and do not place it in quotation marks.

Step 3: Identify the Website Name

This is the name of the overall website or the organization hosting the page. General website names are styled in roman type; titles of periodicals, books, and other works retain their usual italics online. If the website name is the same as the author, you may omit the website name to avoid redundancy.

Step 4: Determine the Date

Chicago 17 prefers a publication date or a "last modified" date. Look for these near the byline, at the bottom of the page, or in the page metadata. Use the format "Month Day, Year" (e.g., January 15, 2024). If no date is available, include an access date instead.

Step 5: Copy the URL

Use the full URL from your browser's address bar. If a DOI is available, use that instead. Chicago 17 generally calls for complete URLs, including the applicable "http://" or "https://" protocol. End the citation with a period after the URL, outside any hyperlink.

Step 6: Assemble the Footnote

Combine the elements in this order: note number, author, "page title," website name, date, URL. Use commas to separate elements in footnotes.

Step 7: Assemble the Bibliography Entry

Invert the author's name (Last, First). Use periods between major elements instead of commas. Apply a hanging indent for lines after the first.

Real-World Examples

Example 1: Web Page with a Named Author

This fictional example shows a page on a university website written by an identified individual.

Example 2: Web Page with an Organization as Author

When no individual author is credited and an organization is responsible for the content.

Note: When the author and the website name are the same (as above), you may omit the website name to reduce redundancy. Many instructors accept either approach—check your style sheet.

Example 3: Web Page with No Date (Access Date Required)

When no publication or last-modified date can be found, Chicago 17 requires an access date.

Example 4: Web Page with No Individual Author

When no individual is credited, use the organization responsible for the content if it can be identified.

Example 5: Web Page with Multiple Authors

This fictional example shows a page with two credited authors.

In Chicago 17 notes, including shortened notes, list all authors for up to three authors; for four or more, use the first author followed by "et al." In the bibliography, list up to ten authors; for more than ten, list the first seven followed by "et al."

Common Errors

These are the most frequent mistakes humanities students make when citing websites in Chicago 17.

Error 1: Italicizing the Website Name

Why: In Chicago 17, general website names such as EPA are set in roman type. Titles of online periodicals, books, and other standalone works retain their usual italics.

Error 2: Omitting the Access Date When No Publication Date Exists

Why: When no publication date or last-modified date is available, Chicago 17 requires an access date. Without any date, readers cannot gauge the currency of the information.

Error 3: Treating Access Dates as Forbidden for Dated Pages

Why: Chicago 17 does not require an access date when a publication or revision date is provided, but an access date may accompany either date when useful or required. Both examples above are acceptable.

Error 4: Using Periods Instead of Commas in Footnotes

Why: Chicago footnotes use commas between elements, while bibliography entries use periods. Mixing up these punctuation patterns is one of the most common Chicago mistakes.

Error 5: Ending the Citation with a Comma

Why: Chicago 17 notes and bibliography entries end with a period, including when the last element is a URL. Keep that final period outside any hyperlink.

Special Cases

Government Websites

For U.S. government sites, use the department or agency as the author. Include the specific office or bureau if relevant for clarity.

Pages with "Last Modified" Dates

If a page displays a "last modified" or "last updated" date rather than a publication date, use that date and indicate it explicitly.

Undated Web Pages

Using "n.d." (no date) is not the standard approach for undated web pages in Chicago Notes-Bibliography style. Instead, Chicago 17 instructs you to include an access date when no publication date is available. Do not use "n.d." as you might in APA.

Web Pages That Are Part of a Larger Digital Project

When a page is part of a named digital project or online archive, include the project name as the website name. A digitized book retains book formatting, including an italicized title and its original publication details.

Web Pages with Section or Paragraph Numbers

If you need to point readers to a specific part of a long web page, include the section heading, paragraph number, or anchor link. Chicago recommends using "under" followed by the section heading.

Citing a Website's Home Page

If you are referring to a website as a whole rather than a specific page, you can cite it in a footnote without a bibliography entry. Mention the site in running text and provide the URL.

Access Dates: When Do You Need Them?

Access dates are a frequent source of confusion. Here is a clear decision framework:

When including an access date, format it as: "Accessed Month Day, Year" (e.g., "Accessed January 15, 2026"). In a footnote, it is lowercase and preceded by a comma. In a bibliography, it is capitalized and preceded by a period.

Footnotes vs. Bibliography: Key Differences

Understanding the structural differences between footnotes and bibliography entries is essential for Chicago 17.

URL Formatting Tips

• Use the full URL: Include the applicable http:// or https:// protocol and the complete path, not just the domain name.
• Do not use angle brackets: Do not enclose URLs in angle brackets (< >).
• Prefer DOIs when available: If the web page has a DOI (common for institutional reports), use "https://doi.org/..." instead of the regular URL.
• Permalinks and stable URLs: Some websites offer permanent or stable links. Use these when available for long-term accessibility.
• Line breaks: If a URL must break across lines, break it before a punctuation mark (before a slash, period, or other symbol). Never add a hyphen to indicate the break.

Frequently Asked Questions

Should I include "https://" in my URL?

Chicago 17 generally calls for complete URLs, including the applicable "http://" or "https://" protocol. Including the full protocol makes URLs clickable in digital submissions and ensures clarity.

How do I cite a web page that has been removed or changed?

If the page was available when you accessed it but has since been removed, cite it as you normally would with the date you accessed it. If an archived version is available through the Wayback Machine or a similar service, you may include the archived URL instead. Note this in your citation: for example, use the Wayback Machine URL (https://web.archive.org/web/...) and indicate the archive date.

Do I need a bibliography entry for every web source cited in a footnote?

Chicago allows many website references in notes or text alone. Include bibliography entries for web pages you analyze or quote when your assignment or bibliography calls for them.

What if the same organization is both the author and the website name?

You have two options. You may list the organization in both positions for absolute clarity, or you may omit the website name to avoid redundancy. Both approaches are accepted under Chicago 17. Choose one method and apply it consistently throughout your paper.

How do I handle very long URLs?

Use the full URL even if it is long. Do not use URL shorteners (like bit.ly) in academic citations—the original URL must be verifiable. If the page provides a "share" or "permalink" option with a shorter URL, you may use that instead. When formatting, allow the URL to break naturally at slashes or punctuation marks without adding hyphens.

Validation Checklist

Before submitting your paper, run through this checklist for every website citation:

Summary

Citing websites in Chicago 17 Notes-Bibliography format requires attention to a few key details: use quotation marks for page titles, keep website names in roman type, include an access date for an undated page and optionally for a dated page when useful or required, and remember that footnotes use commas while bibliography entries use periods. When in doubt about author attribution, default to the organization responsible for the content. Use the full URL and test your links before submission.

For the complete rules on Chicago 17 formatting across all source types, visit our Chicago 17th Edition citation guide. You can also use our citation format checker to verify your website citations automatically.