About WCAG

Activity 2: WCAG Scavenger Hunt

Now that you have been introduced to WCAG, this activity will give you an opportunity to explore the specification and develop familiarity with its parts.

To assist you, we have set up a scavenger hunt activity. Read the requirements that follow for details.


Your mission in this scavenger hunt is to find one sufficient technique for each of the following barriers and record the technique ID and its title/description. See the sample below for an example of what’s expected for this exercise. If there are multiple techniques, choose the one you think fits best, given the barrier described.

Hint: You will likely start by looking at some key words in the barrier description in order to locate the relevant Guideline or Success Criterion in WCAG 2.0 or WCAG 2.1. After that, look at How to Meet that guideline in order to identify a Sufficient Technique.

Here is your list of barriers:

  1. Image has no text alternative.
  2. Video has no captions.
  3. Colour is used on its own to represent meaning.
  4. Contrast between text and background colours is insufficient (< 4.5:1).
  5. Form button is not keyboard operable.
  6. Page redirects to another before contents can be read.
  7. Web page does not have a descriptive title.
  8. No means is provided to skip past a large main menu on a web page.
  9. The language of a page is not defined.
  10. Page redirects when a form radio button receives focus.


Here is a sample:

Barrier: Pre-recorded video does not audibly describe meaningful visual activity.

Technique ID: G78: Providing a second, user-selectable audio track that includes audio descriptions.


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Introduction to Web Accessibility Copyright © 2019 by The Chang School, Toronto Metropolitan University is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License, except where otherwise noted.

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