But you can prevent unwanted tagged posts from showing up on your Timeline. A dialogue box explaining how Timeline Review works will appear on screen, from which you can enable the feature. Trying to ignore someone? What can people see on your Facebook profile? To find out, go to your profile, and select View As… from the menu button on the bottom right corner of your cover photo. So how do you know which embarrassing photos might be visible to non-friends or friends?
On the left-hand column, click on Photos , then select Photos of You. Or, you can untag yourself. Facebook also added a new page that breaks down various privacy-related FAQs earlier this year. Many factors contribute to what shows up in your News Feed, such as the people you interact with most and the number of likes and comments a particular post receives.
Users need to be able to control moving content, especially some people with attention deficit disorder or visual processing disorders. Additionally, flashing or blinking content can cause seizures in people with photosensitive epilepsy, particularly if it:.
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Information in podcasts or other audio is not available to people who are deaf or some people who are hard of hearing, unless it is provided in an alternative format such as captions and text transcripts. Visual information in videos is not available to people who are blind or some people what have low vision, unless it is provided in an alternative format such as audio or text.
Text can be read by a screen reader or Braille display, or enlarged and reformatted for people with low vision. Follow the steps above for keyboard access to ensure that the media player controls are labeled and keyboard accessible. It is best if audio including background noise and video with sound does not start automatically when a web page opens.
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If it does start automatically, it should either:. Most video on the web that provides captions has "closed captions" that can be turned on and off. For example, in YouTube, you turn on captions with the CC button no known keyboard access. If there is not a CC button, there are no captions available for that video. Automatic captions are not sufficient for accessibility because they are not accurate enough.
For example, in YouTube, if only "automatic captions" are listed, there are no sufficient captions and the video is not accessible. Captions in the specific language need to be listed. It is best practice to provide both captions and transcripts, although not always required; providing transcripts has many benefits — both to people with disabilities and to website owners.
Check that transcripts include all audio information, including dialogue with the speakers identified, and all important sound — e. A transcript for a video could provide all the audio and all the visual information, so that a person can get all the content of the video by reading the text.
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Audio description sometimes known as described video, video description, or visual interpretation is description of important visual information in a video, in order to make it accessible to people who cannot see. For example, some videos start out with a title in text, have speaker names in text, and have illustrations.
That visual information needs to be provided to people who cannot see the video. It can be provided through:. While the other checks on this page focus on specific success criteria in WCAG 2. It helps you understand how some people "see" the web page differently.
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For this basic structure check, you look at the web page without images, styles, and layout. Web pages are often designed with multiple columns, sections, colors, and other visual aspects that help organize information for people who see the page in its default display. However, some people do not see the page this way. People who are blind listen to the page with a screen reader or read it from a Braille display. Some people with low vision and others change the way the page is displayed so they can read it; for example, change from multiple columns to one column, change the text size, and more.
An important issue is how the web page works when it is "linearized" into one column and the presentation is changed, as shown in the images below. Images showing linearized and changed display click to show images. The images below illustrate how a web page is displayed in 3 columns by default and how it can be changed. Figure A shows the default display of three columns, with the navigation at the left.
Figure B shows the page linearized into one column, with the navigation at the top. Figure C shows the page linearized, with the navigation at the bottom. The order of the sections e. Figure D shows the page linearized and with styles turned off. When you follow the Basic structure checks steps below , your page will look like something like this:. Figure E shows the page changed by a person with low vision to make it more readable, for example, the main text is big, the footer text is very small, and the headings are a different color.
While it is useful to have an experienced screen reader user check web pages, anyone can get an initial idea of potential accessibility barriers for screen reader users and others who change the way the page is presented.
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The steps below show you how to disable images, disable styles for how the page is usually displayed, and linearize the page to check the page structure. Get a basic structure view of the page by following the instructions under Basic structure checks below to:. Most browsers provide the option to turn off images and disable CSS from the menus.
Now that you have an idea of the accessibility issues on a web page, two things you can do:.
Contacting Organizations about Inaccessible Websites has guidance on reporting accessibility problems. It is focused for people who do not work for the organization that owns the website, yet also has some useful information if you do work for the organization — particularly the Introduction, Consider Your Approach, and Sources for More Information sections. The checks on this page are not definitive; a web page could seem to pass these checks, yet still have significant accessibility barriers. This page covers just a few accessibility issues.
There are other accessibility issues not covered in these easy checks, for example: More robust assessment is needed to evaluate accessibility comprehensively. Guidance is available from:. Page title Image text alternatives "alt text" pictures, illustrations, charts, etc.
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Headings Contrast ratio "color contrast" Resize Text Interaction: Keyboard access and visual focus Forms, labels, and errors including Search fields General: Here are some things to know that will help you understand the brief explanations throughout this page: You can see the markup of a web page in most browsers by selecting from the menu: You do not need to look at the markup to do these checks; however, it does help to understand what "markup" and "marked up" means.
They are used by people who are blind. To learn more, see: Introduction to Web Accessibility Accessibility Principles. Some of the keyboard instructions are different for Windows and Mac; for example, "Ctrl" versus "cmd" in: To reduce clutter, these are listed as: For such instructions, Windows users press the Ctrl key, and Mac users press the cmd key.
There is flexibility on what makes a good page title. Best practice is for titles to be "front-loaded" with the important and unique identifying information first. Welcome to home page of Acme Web Solutions, Inc. Acme Web Solutions, Inc. History Better page titles: If you have a browser that displays the page title in the window title bar by default, use that browser. If the title bar isn't displayed you might be able to display it by pressing: If your browser doesn't have a title bar, you can do try one of these: With your mouse, hover over the browser tab to see the full page title, like this: Open the web page you are checking.
In the toolbar, select "Structure", then "Heading structure". Or, with the keyboard: A new page opens.
The page title is shown after "Title: Page Titled - Understanding Success Criterion 2. The text needs to convey the same meaning as the image. That is, if someone cannot see the image, they get the important information from the image in the alternative text. Alternative text depends on context. For example, for an image of a dog on a kennel club website, the alt text might include the breed of the dog; however, the same image on a dog park website may be there just to make the page more attractive, and the image might not need any alt text and should have null alt.
One way to help think about appropriate alt text is: Images that are functional — for example, images that initiate actions like submit buttons and linked images like in navigation — need alt text that is the functional equivalent. If there is text in the image — for example, in a logo — that text needs to be included in the alt text.
If the image has complex information — such as charts or graphs — the image should have a short alt text to identify the image, and then the detailed description of the information should be provided elsewhere for example, in a data table.