What "what users actually see" means here
Every field shows a live character count against the real platform limit, plus a truncation preview so you can see exactly where your copy gets cut — a headline one character over the limit doesn't fail to save, it silently truncates mid-word, which is a worse outcome than a slightly shorter, deliberate line. Google RSA headlines cap at 30 characters, descriptions at 90, and each display path segment at 15; Meta's primary text commonly truncates around 125 characters into a "See more" link, with headline and description each capped at 27; TikTok's in-feed ad text runs to roughly 100 characters depending on placement.
Beyond length, the secondary checks flag the things that most often trigger a disapproval or a weaker ad regardless of platform: an ALL-CAPS ratio that reads as shouting, more emoji than a professional ad typically carries, doubled-up punctuation ("!!", "??"), and superlative or guarantee language ("No. 1," "best," "guaranteed") that most platforms restrict, especially in regulated categories. None of these flags are a guarantee of approval or rejection — they're the same first-pass checks we run before submitting client campaigns.
Running ads in a regulated category like aesthetic or dental? Pair this with the KKM ad checker or MDC ad checker for category-specific compliance, and see Meta Ads for the account management layer around all of this. Selling live instead of in a static ad? A spoken claim on a livestream carries the same regulatory weight as written copy — see the live selling claim checker.