This page simulates what an author would experience if they were logged in to a site with Editoria11y installed.
On most pages, a toggle automatically appears in the lower-right-hand corner of the page with issue information. Normally it is an innocuous navy-blue checkmark; since there were critical issues detected on this page it will pop open the main panel automatically if this is your first visit to this page:

Things to try on this page:
- Refresh the page. Note that the panel no longer pops automatically. Your browser remembers how many issues were on a monitored page, and only auto-pops the panel if that number changes.
- Explore the tips, either by manually toggling the alerts below, or by using the “First/Next” button on the main panel..
- Note that manual check issues can be marked as “OK” or “Hidden.” Note that changes will not be saved in demo mode, so issues will come back if you refresh the page. Normally changes are saved and viewable from the dashboard.
- Test the “outline” and “alt text” buttons on the panel to see various pieces of structural information visualized.
Heading Tests
1. Empty headings
This heading has no text:
Skipped heading levels
This H6 should have been an H3
Suspiciously long headings
A very long heading. Headings should not be used for emphasis, but rather for a document outline, so if you find yourself talking this much, this probably is being used for visual formatting, not a heading.
Suspiciously short blockquotes that maybe should be headings
Not a blockquote
Suspicious paragraphs that look like headings
This looks suspiciously like a heading
Note that this test only flags an all-bold paragraph that has no punctuation at all,
so this paragraph will not be flagged as a false positive.
Text alternatives
Image marked as decorative with an empty alt
This might be OK; flagged as needing manual review.

Image with an invalid alt attribute
E.g., alt="'"

Image with a filename as an alt

Image with redundant text in its alt
E.g., “image of.”

Image with very long alt text

Embeds
Flagged as manual check needed for captioning:
Also flagged: embedded audio and social media.
Meaningful Links
Links with no text at all
Links titled with a URL
https://editoria11y.princeton.edu
Links only titled with generic text
“Click here,” “learn more,” “download,” etc.
Links that open in a new window without an external link icon or text warning
Links to a documents
Note that you can set what Editoria11y should look for in your preferences file. By default it checks for PDF and DOC files.
Tables
Tables without valid headers
A table without a TH header is invalid | And no, an “H3” does not count. |
Empty table header cells
Empty table heading cells will also be flagged: |
---|
Legibility
Lists
a. Fake lists
b. use letters or numbers.
c. rather than real formatting.
Caps lock
SEVERAL WORDS IN A ROW OF CAPS LOCK TEXT WILL TRIGGER A MANUAL CHECK WARNING.