The Real Blog Readability Test
- Spam links on Blog Readability Test widget
- The Blog Readability Badge can Harm Your Website Rankings (Is PR™ important to you?).


Some of readability tests suggested by Wikipedia - Readability test:From those pages:
Readability is the measure of how easy it is to read and comprehend a document. Readability tests were first developed in the 1920s in the United States. They are mathematical formulas, designed to determine the suitability of books for American students at a certain age, or grade level. Automating the process was intended to make it easier for tutors, librarians, and publishers to determine whether a book would be suitable for its intended audience. The formulas are based around the average words to a sentence, and the average syllables used per word. As such, they tend to reward short sentences made up of short words.
Algorithm:For a document to be easily understood, the writing style should be clear and simple. This involves a writing style that is direct, and familiar to the intended reader. The structure of the document should be logical, unambiguous, and avoid redundant words.
- Gunning-Fox Index:
(average_words_sentence + number_words_three_syllables_plus) * 0.4 - Flesch Reading Ease:
206.835 - (1.015 * average_words_sentence) - (84.6 * average_syllables_word) - Flesch-Kinkaid Grade Level:
0.39 * average_words_sentence) + (11.8 * average_syllables_word) - 15.9
