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:
- 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. 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
- Use the full URL: Include the complete path, not just the domain name.
- Do not use angle brackets: Chicago 17 dropped the older convention of enclosing 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 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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