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 treats clarity as one of its six kinds of copy issue — flagging sentences that are hard to read or ambiguous to a first-time visitor — so the part of readability that lives at the sentence level overlaps with what a clarity check surfaces. 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. It flags specific sentences that are hard to follow, as part of the clarity pass, rather than scoring the page for overall readability.

Common mistakes

The most common mistake is mistaking grammatical correctness for readability — 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.