sugaroverflow
commented
7 years ago http://www.hemingwayapp.com/ is another great reading level tool, but it's for actual written content and not for a webpage. We used it when I was at boston.gov to make sure our content was readable. I always found it useful because it would flag specific words or sentences :)
https://drupal-diversity.gitbooks.io/drupal-organizer-resources/content/manuscript/common-exclusion-pitfalls/verbiage.html
Currently a blank page, I feel this may be one of the greatest areas for initial creation within the Organizer Packet.
Examples and General Initial Thoughts
Identification and Gender Neutrality
They, Ya'll, and everyone instead of 'You Guys', 'Guys', or 'Brothers and Sisters'. Though a fond naming convention for years, even 'Drupalists and Drupalistas' is unintentionally exclusive.
Using Broad Declarations of 'Everyone' without defined Pre-Requisites
"As you are aware", "As everyone knows", and "As you are familiar with" tends to be unintentionally exclusive, especially when the identified pre-requisites are no knowledge, beginner or intermediate familiarity on the topic.
Slang
Slang should be avoided at all costs, even as a 'pun' as it creates an international level of exclusion.
Reading Level
Tools like https://readability-score.com/ or http://www.webpagefx.com/tools/read-able/ should be used against all submitted Presentations, Proposals, Maps, Handouts, etc. to ensure a Maximum Reading level of (generally) around a 6th Grade level. Higher reading levels are exclusive for various reasons.