Flesch for English and the Ateşman formula for Turkish, with the numbers behind the score.
Flesch Reading Ease was built for English and uses sentence length and syllables per word.
This matters more than it looks. English is scored with Flesch and Turkish with Ateşman, because the two languages behave differently enough that one formula cannot serve both.
Use the body copy rather than headings and navigation. A few sentences is enough for a rough reading, and a few paragraphs gives a stable score.
Words per sentence and syllables per word are the two levers. Long sentences are almost always the easier of the two to fix.
Because Flesch was calibrated on English. Turkish is agglutinative and its words carry many more syllables, so Flesch scores Turkish text as far harder than it reads. Ateşman was derived for Turkish and gives numbers that mean something.
For marketing and blog copy, somewhere between 60 and 80 in either formula. Documentation can sit lower. There is no universally correct target, only a target for your audience.
Shorten sentences first, since sentence length is the lever with the most give. Splitting one long sentence in two usually moves the number more than swapping several words.
For Turkish, yes: each syllable contains exactly one vowel, so counting vowels is exact. For English it is a heuristic, because English syllable rules have too many exceptions for a short algorithm.
Not as a direct ranking factor. It affects whether people stay and read, which does matter. Treat it as a writing check rather than an optimisation target.
Because both formulas weight sentence length heavily. Individual word choices move syllables per word only slightly across a whole text.
No. Everything is calculated in your browser, so unpublished copy stays private.
Yes, completely free with no sign-up.
Count the phrases your content actually repeats, with stopwords filtered and Turkish supported.
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