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.


Quick Reference

Footnote (first citation):

N. First Name Last Name, "Title of Web Page," Website Name, Publication or Last Modified Date, URL.

Shortened Footnote (subsequent citations):

N. Last Name, "Shortened Title."

Bibliography:

Last Name, First Name. "Title of Web Page." Website Name. Publication or Last Modified Date. URL.

Note: If no fixed publication date is available, include an access date instead: "Accessed Month Day, Year."


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:

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. It is styled in roman (not italic) type. 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 does not require "https://" to be included, but most styles retain it for clarity and clickability. Do not add a period after a URL—it may cause link confusion.

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

A page on a university website written by an identified individual.

First Footnote:

1. Sarah Johnson, "Understanding Primary Sources in Historical Research," Yale University Library, March 12, 2023, https://library.yale.edu/understanding-primary-sources.

Shortened Footnote:

2. Johnson, "Understanding Primary Sources."

Bibliography:

Johnson, Sarah. "Understanding Primary Sources in Historical Research." Yale University Library. March 12, 2023. https://library.yale.edu/understanding-primary-sources.

Example 2: Web Page with an Organization as Author

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

First Footnote:

1. World Health Organization, "Antimicrobial Resistance: Key Facts," World Health Organization, November 21, 2023, https://www.who.int/news-room/fact-sheets/detail/antimicrobial-resistance.

Shortened Footnote:

2. World Health Organization, "Antimicrobial Resistance."

Bibliography:

World Health Organization. "Antimicrobial Resistance: Key Facts." World Health Organization. November 21, 2023. https://www.who.int/news-room/fact-sheets/detail/antimicrobial-resistance.

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.

Simplified Bibliography (author = site name):

World Health Organization. "Antimicrobial Resistance: Key Facts." November 21, 2023. https://www.who.int/news-room/fact-sheets/detail/antimicrobial-resistance.

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.

First Footnote:

1. Library of Congress, "About the Library," Library of Congress, accessed February 10, 2026, https://www.loc.gov/about/.

Shortened Footnote:

2. Library of Congress, "About the Library."

Bibliography:

Library of Congress. "About the Library." Library of Congress. Accessed February 10, 2026. https://www.loc.gov/about/.

Example 4: Web Page with No Author

When neither an individual nor an organization can be identified as the author, begin with the page title.

First Footnote:

1. "History of the Rosetta Stone," British Museum, accessed January 5, 2026, https://www.britishmuseum.org/about-us/british-museum-story/history-rosetta-stone.

Shortened Footnote:

2. "History of the Rosetta Stone."

Bibliography:

"History of the Rosetta Stone." British Museum. Accessed January 5, 2026. https://www.britishmuseum.org/about-us/british-museum-story/history-rosetta-stone.

Example 5: Web Page with Multiple Authors

When two or more individuals are credited.

First Footnote:

1. Michael Chen and Rebecca Torres, "Digital Preservation Best Practices," Smithsonian Institution Archives, June 8, 2024, https://siarchives.si.edu/digital-preservation-best-practices.

Shortened Footnote:

2. Chen and Torres, "Digital Preservation."

Bibliography:

Chen, Michael, and Rebecca Torres. "Digital Preservation Best Practices." Smithsonian Institution Archives. June 8, 2024. https://siarchives.si.edu/digital-preservation-best-practices.

For three or more authors, list all authors in the bibliography. In footnotes, list all authors for the first citation; in shortened notes, use the first author's last name followed by et al.


Check Your Chicago Website Citation

Paste your footnote or bibliography entry below to check formatting


Common Errors

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

Error 1: Italicizing the Website Name

Wrong:

1. "Climate Change Indicators," EPA, accessed March 1, 2026, https://www.epa.gov/climate-indicators.

Correct:

1. "Climate Change Indicators," EPA, accessed March 1, 2026, https://www.epa.gov/climate-indicators.

Why: In Chicago 17, website names are set in roman type, not italics. Italics are reserved for titles of larger works like books, journals, and films. A website is treated as a "container" name, not as a published title in its own right.

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

Wrong:

Library of Congress. "About the Library." Library of Congress. https://www.loc.gov/about/.

Correct:

Library of Congress. "About the Library." Library of Congress. Accessed February 10, 2026. https://www.loc.gov/about/.

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: Including an Access Date When a Publication Date Is Available

Wrong:

1. Sarah Johnson, "Understanding Primary Sources," Yale University Library, March 12, 2023, accessed February 1, 2026, https://library.yale.edu/understanding-primary-sources.

Correct:

1. Sarah Johnson, "Understanding Primary Sources," Yale University Library, March 12, 2023, https://library.yale.edu/understanding-primary-sources.

Why: Chicago 17 specifies that access dates are not required when a publication or revision date is provided. Including both adds unnecessary clutter. However, some instructors or disciplines may still request access dates—always check your assignment guidelines.

Error 4: Using Periods Instead of Commas in Footnotes

Wrong:

1. Sarah Johnson. "Understanding Primary Sources." Yale University Library. March 12, 2023. https://library.yale.edu/understanding-primary-sources.

Correct:

1. Sarah Johnson, "Understanding Primary Sources," Yale University Library, March 12, 2023, https://library.yale.edu/understanding-primary-sources.

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: Placing a Period After the URL

Wrong:

Johnson, Sarah. "Understanding Primary Sources." Yale University Library. March 12, 2023. https://library.yale.edu/understanding-primary-sources.

Correct:

Johnson, Sarah. "Understanding Primary Sources." Yale University Library. March 12, 2023. https://library.yale.edu/understanding-primary-sources.

Why: While Chicago 17 does technically end bibliography entries with a period (which would follow the URL), this can create confusion when readers click or copy the link. The manual acknowledges this tension. In practice, most digital style guides recommend keeping the period for formal papers while ensuring the URL itself remains functional. If submitting digitally, test your links.


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.

First Footnote:

1. U.S. Department of Education, "Federal Student Aid Programs," Department of Education, last modified August 15, 2024, https://www.ed.gov/federal-student-aid.

Bibliography:

U.S. Department of Education. "Federal Student Aid Programs." Department of Education. Last modified August 15, 2024. https://www.ed.gov/federal-student-aid.

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.

Bibliography:

National Archives. "Founding Documents." National Archives. Last modified September 20, 2025. https://www.archives.gov/founding-docs.

Undated Web Pages

Use "n.d." (no date) is not the standard approach in Chicago. 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.

Wrong (APA convention):

British Museum. (n.d.). "History of the Rosetta Stone."

Correct (Chicago 17):

"History of the Rosetta Stone." British Museum. Accessed January 5, 2026. https://www.britishmuseum.org/about-us/british-museum-story/history-rosetta-stone.

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.

Bibliography:

Douglass, Frederick. "Narrative of the Life of Frederick Douglass." Documenting the American South, University of North Carolina at Chapel Hill. Accessed March 1, 2026. https://docsouth.unc.edu/neh/douglass/douglass.html.

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.

First Footnote:

1. World Health Organization, "Antimicrobial Resistance: Key Facts," World Health Organization, November 21, 2023, under "Scope of the Problem," https://www.who.int/news-room/fact-sheets/detail/antimicrobial-resistance.

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.

In-text reference:

The Smithsonian Institution's website (https://www.si.edu/) provides extensive digital collections.

Footnote (if needed):

1. Smithsonian Institution, accessed February 15, 2026, https://www.si.edu/.


Check Your Chicago Bibliography Entry

Paste your bibliography entry to verify formatting


Access Dates: When Do You Need Them?

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

Situation Access Date Required?
Page has a publication date No
Page has a "last modified" date No
Page has no date at all Yes
Content is time-sensitive or likely to change Recommended (even with date)
Your instructor requires it for all web sources Yes

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.

Element Footnote Bibliography
Author name order First Last Last, First
Punctuation between elements Commas Periods
Note number Yes (superscript) No
Indentation First line indented Hanging indent
Subsequent references Shortened form Listed once

URL Formatting Tips


Frequently Asked Questions

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

Chicago 17 does not strictly require "https://" but most style guides and instructors expect it. Including the full protocol makes URLs clickable in digital submissions and ensures clarity. Keep it unless your instructor specifically says otherwise.

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?

Generally, yes. Any source cited in a footnote should also appear in the bibliography—unless it is a personal communication, a brief mention of a website in passing, or another source type that Chicago considers "cite in notes only." For web pages you analyze or quote, include a bibliography entry.

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:

  • Author name is listed (or organization, or title-first if no author)
  • Page title is in quotation marks
  • Website name is in roman type (not italicized)
  • Publication date or last-modified date is included (if available)
  • Access date is included when no publication date exists
  • Date format is "Month Day, Year" (e.g., March 12, 2023)
  • Full URL is included and functional
  • Footnotes use commas between elements
  • Bibliography entries use periods between elements
  • Author name is inverted in bibliography (Last, First)
  • Author name is in natural order in footnotes (First Last)
  • Shortened footnote uses last name and short title only
  • Each footnoted source has a corresponding bibliography entry
  • Bibliography is alphabetized by author last name (or title if no author)
  • Hanging indentation is applied to bibliography entries

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 access dates only when no publication date is available, 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.

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