Readability

What readability means

Readability describes how much work a reader has to do to follow what you wrote. Writing with short-to-moderate sentences, familiar words, concrete phrasing, and a clear structure is easy to read; writing with long winding sentences, jargon, abstract nouns, and tangled clauses is hard, even when every sentence is grammatically perfect. The two are independent: prose can be flawless in its grammar and still be a slog to get through, and it can be plain and easy while breaking a few formal rules.

There are formulas that estimate readability from surface features — the Flesch Reading Ease score and the Flesch-Kincaid Grade Level, for example, are computed from average sentence length and syllables per word. These give a rough, mechanical proxy for difficulty and are useful as a signal, but they are only an approximation: they measure sentence and word length, not whether the meaning is actually clear. A short sentence made of vague words can score "easy" and still confuse.

Why it matters for website copy

On the web, readability is doing heavy lifting under difficult conditions: visitors skim, arrive without your context, and leave the moment the copy makes them work. Hard-to-read copy on a landing page, a pricing explanation, or a help article costs you exactly where you most need the reader to keep going. Making web copy readable — short sentences, plain words, one idea at a time — is one of the highest-leverage things you can do for it.

Readability connects to proofreading through clarity. Verant reports four kinds of copy issue — spelling, grammar, punctuation, and leftover placeholder text — and clarity is not one. A person checks sentences that are hard to read or ambiguous to a first-time visitor. To be precise about scope: Verant does not compute or report a readability score. It does not assign a Flesch-Kincaid grade or a reading level; there is no readability metric in what it returns.

Common mistakes

Mistaking grammatical correctness for readability is the first trap — assuming that because the copy has no errors, it must be easy to read. The two are different: clean prose can still be dense and hard to follow. Another is over-trusting a readability score as if it measured clarity; it measures sentence and word length, which is a proxy, not the thing itself. A third is writing for yourself — at the level of detail and vocabulary you already hold — rather than for a first-time visitor who lacks your context, which is the reader readability is really about.