This tip sheet offers research-based guidelines that can help you create websites that work well for older adults, the fastest-growing group of Internet users. Besides sending and receiving email, older adults search the web for health, financial, and religious or spiritual information. They also use the Internet to shop, play games, perform genealogy searches, and book travel. As the baby boomers age, the number of older adults using the Internet will continue to grow, and web designers will increasingly be called on to tailor websites to this population.
This tip sheet is organized into the following sections:
Key Tips for Making Your Website Senior Friendly
Visit www.NIHSeniorHealth.gov  for an example of a website that incorporates these senior-friendly guidelines.
In the last two decades, the National Institute on Aging, part of the Federal Government's National Institutes of Health at the U.S. Department of Health and Human Services, and others have supported studies about aging, cognition, and computer use among older adults. Usability tests, focus groups, and survey research have also been conducted to see how age-associated changes affect older adults' use of the web.
Research has shown that older age is not in itself a hindrance to computer or Internet use. However, older adults' use of electronic technology may be affected by age-related changes in vision and in cognition—for example, the ability to remember, learn, think, and reason. Cognitive abilities that change with age and that are likely to affect computer use include working memory, perceptual speed, text comprehension, attentional functioning, and spatial memory, all of which are described in later sections of this tip sheet.
Good web design can help counteract many of these age-related changes. Use of the appropriate typeface, colors, writing style, navigation structure, and accessibility features can make a website easier for older adults to access. Furthermore, good web design is beneficial for web users of any age.
Many older adults have had little training in the use of computers and the Internet and are unfamiliar with the way information on websites is organized. In addition, changes in working memory may affect their ability to simultaneously grasp, retain, and manage new information. Declines in perceptual speed can increase the time it takes to process information. A website with a simple design, uncluttered layout, clear labels, and short sections of information can make it easier for older adults to select content, absorb and retain what they read, and avoid information overload. Here are some guidelines:
Make it clear how the information on the website is organized. Users should easily be able to determine what information your site offers and how it is organized. They should be able to figure out a starting point and predict what type of information a link will lead them to. It should also be clear how they can find more information as well as how to return to previously visited pages.
Keep the website structure simple and straightforward. A broad and shallow site hierarchy reduces complexity and makes it easier for visitors to learn how information is organized.
Break information into short sections. Giving people a small amount of content at one time makes it easier for them to grasp and recall information.
Group related topics visually. Use page layout to show how information is organized.
Write a clear, informative heading for each section. Clear headings give people anchors on the page and help them select desired content. For example, headings can be:
Put key information first. The most important information should be located where people can find it most easily—at the top of the website and at the top of a web page.
Put the sections in logical order. Think about how older adults might look for information.
Provide a site map. Link the site map from every page.
Age-related changes in text comprehension can make it harder for older adults to understand written material that is not expressed in a straightforward or concrete manner. Changes in attentional functioning may make it more difficult for older people to stay focused on specific information and eliminate distractions. Many older adults may be unfamiliar with technical language and jargon. To keep the text senior friendly:
Limit the number of points you make. Stick to one to five messages in each section. Keeping your information brief can make it easier for web users to stay focused.
Put the key message first. Putting the main message at the beginning ensures that your website visitors will see it.
Keep paragraphs and sentences short. Paragraphs should express one main idea. Sentences should be simple and straightforward.
Write in the active voice. The active voice puts the focus on people and actions.
Prescription medicines are taken by many older adults.
Many older adults take prescription medicines.
Write in the positive. Be especially aware of words that have negative meaning such as "forget," "until," and "unless." Instead of combining them with "not," rewrite the sentence with a positive word.
Don't forget to take your medicine.
Remember to take your medicine.
Explain clearly; don't make people guess what you mean. Be direct.
Restaurants that offer senior discounts may be a good choice for older adults who like to eat out.
If you like to eat out, go to restaurants that offer senior discounts.
Give specific instructions. These examples tell people exactly what to do:
Eat at least five servings of fruits and vegetables every day.
Exercise every day.
If the instructions have more than one step, number them.
Address your web users by using "you." A direct instruction like "Exercise every day" is one way of writing for your web users, but not every message you want to give is such a direct instruction.
No matter where a person is, a sudden fall can be startling and upsetting. If someone falls, that person should stay as calm as possible.
Whether you're at home or somewhere else, a sudden fall can be startling and upsetting. If you do fall, stay as calm as possible.
Choose words your web users know. Minimize jargon and technical terms. Write in simple language. For example, to describe a place to exchange messages with other older adults on a website:
Communicate with others online
Define unfamiliar terms. If you need to use a term that most older adults do not know, define it when you use it.
Kidney disease—also known as chronic kidney disease (CKD)—occurs when kidneys can no longer remove wastes and extra water from the blood as they should.
Hypertension is the medical term for high blood pressure.
Provide summary information. Summarizing information reinforces it and helps with recall. If you repeat information at different places in your site, make sure the messages are consistent.
Vision commonly changes with age, often making reading from a computer screen difficult as the eyes become less sensitive and less able to detect light, color, and details. Keep these features in mind:
Arial is the most commonly used sans serif font today, but Tahoma and Verdana are also widely available and were developed specifically for the screen.
Here is an example of 12-point type.
Here is an example of 14-point type.
Other websites allow users to adjust text size like this:
Change Text Size A A A
Medicines and Your Body
Understanding how medicines work in your body can help you learn why it is important to use medicines safely and effectively.
TEXT IN ALL CAPITALS IS HARD TO READ.
Text in uppercase and lowercase is easier to read.
Avoid using italics
Italics are hard to read, especially online.
Left-justified type is best for older adults.
Left justification allows an even left margin and an uneven right margin. Lines start at the same place on the left side of the screen but do not always end at the same place on the right.
Computer conventions that younger people seem to use automatically—such as scrolling, clicking buttons and links, and using menus—may be unfamiliar to older adults. In addition, advanced age may bring changes in spatial memory, the ability to recall the location of objects in a given space and actually find them. Therefore, it is especially important for navigation elements to be consistent, explicit, and predictable.
Providing obvious and consistent "signposts" will help older adults orient themselves on your site.
Make menus easy to use.
Go to my account
Click here for more information on arthritis.
Click here for more information on arthritis.
Icons and buttons are easier to find when they are large, bright, and in a color that contrasts with the background.
Make bullets (in whatever shape: round, square, arrows) in navigation lists active links that go to the same place as the words that follow them.
Because there are individual differences in the way people age, delivering information in a single format may not meet the needs of all older adults. For example, people with declining vision may find an audio format easier to understand, and those who have trouble reading may prefer video. In addition, research suggests that older adults who receive the same information in more than one mode retain more of it. Incorporating still images, video, audio, and other media into your website can support the learning needs of a wider range of older users.
Following the guidelines in this tip sheet should make your website easier for older adults to use. In the end, however, you cannot know for sure how well the site will work for the older adults you are trying to serve until you watch and listen to some of them working with the site. Usability testing allows you to see how well your site will work while you are still developing it. In a usability test, you can watch and listen as a few people from your target audience try to do real tasks on the site. Conducting usability testing on your website can help you discover and correct problems early. By watching and listening to people trying out your site, you can also evaluate how accessible it is, whether people think it is friendly and inviting, and whether it has the information they are looking for.
When usability testing:
Observe older adults using the website. Watch and listen without training them, helping, or hinting.
Take notes. Note where people have problems, ask questions, or get lost.
Test throughout the design and development process. Start at the beginning when you may have only a paper prototype or just a few pages ready. Don't wait until it's all done because then it may be too late to make changes.
Use what you learn. Revise the site and then test again.
These resources were used in the development of this tip sheet.
Bernard, M., Chia, H.L., and Mills, M. Effects of font type and size on the legibility and reading time of online text by older adults. Conference paper, Association for Computing Machinery. Special Interest Group on Computer-Human Interaction. 2001. Available at http://psychology.wichita.edu/mbernard/articles/elderly.pdf
Bohan, M., and Scarlett, D. Can expanding targets make object selection easier for older adults? Usability News 5.1. February 2003. Available at http://usabilitynews.org/can-expanding-targets-make-object-selection-easier-for-older-adults/ 
Chadwick-Dias, A., McNulty, M., and Tullis, T. Web usability and age: How design changes can improve performance. Presentation, Aging by Design. September 2004.
Chisnell, D., Lee, A., and Redish, J.C. Recruiting and working with older participants. AARP. 2004. Available at www.aarp.org/olderwiserwired/oww-features/Articles/a2004-03-03-recruiting-participants.html 
Chisnell, D., and Redish, J.C. Designing web sites for older adults: Expert review of usability for older adults at 50 web sites. AARP. February 2005. Available at www.aarp.org/olderwiserwired/oww-resources/designing_web_sites_for_older_adults_expert_review.html 
Coyne, K.P., and Nielsen, J. Web Usability for Senior Citizens. Nielsen Norman Group. April 2002. Available at www.nngroup.com/reports/seniors .
Craik, F.I.M., and Salthouse, T.A. The Handbook of Aging and Cognition. Mahwah, NJ: Lawrence Erlbaum Associates, 2000.
Echt, K.V. Designing web-based health information for older adults: Visual considerations and design directives. In: R.W. Morrell (ed.). Older Adults, Health Information, and the World Wide Web, 61-88. Mahwah, NJ: Lawrence Erlbaum Associates, 2002.
Fox, S. Older Americans and the Internet. Pew Internet and American Life Project. March 2004. Available at www.pewinternet.org/PPF/r/117/report_display.asp 
Grahame, M., Laberge, J., and Scialfa, C. Age differences in search of web pages: The effects of link size, link number and clutter. Human Factors, 46: 385-98. 2004.
Gribbons, W. Functional illiteracy and the aging population: Creating appropriate design support. Presentation, Aging By Design. October 2006.
Morrell, R.W., ed. Older Adults, Health Information and the World Wide Web. Mahwah, NJ: Lawrence Erlbaum Associates, 2002.
Nahm, E., Preece, J., Resnick, B., and Mills, M.E. Usability of health web sites for older adults. Computers, Informatics, Nursing, 22(6):326-34. November/December 2004.
Redish, J.C., and Chisnell, D. Designing web sites for older adults: A review of recent research. AARP. 2004. Available at www.aarp.org/olderwiserwired/oww-resources/a_review_of_recent_literature_2004.html 
U.S. Department of Health and Human Services. Research-Based Web Design and Usability Guidelines, version 2. 2006. Available from www.usability.gov/guidelines 
Wright, P., Belt, S., and John, C. Fancy graphics can deter older users: A comparison of two interfaces for exploring healthy lifestyle options. In: E. O'Neill E., P. Palanque, and P. Johnson (eds.) People and Computers 17: Proceedings of HCI 200. Designing for Society, 315-25. London: Springer-Verlag Ltd. 2003.
National Institute on Aging
P.O. Box 8057
Gaithersburg, MD 20898-8057
To order publications (in English or Spanish) or sign up for regular email alerts, visit www.nia.nih.gov/health 
Visit NIHSeniorHealth (www.nihseniorhealth.gov ), a senior-friendly website from the National Institute on Aging and the National Library of Medicine. This website has health information for older adults. Special features make it simple to use. For example, it has large type and a "talking" function that reads the text out loud.
FEBRUARY 2001 -- REVISED MARCH 2009