Almost every SEO guide gives you a character count. Google does not use one. It truncates by rendered pixel width, which is why a title full of capitals and wide characters gets cut earlier than one made of narrow lowercase words of the same length. This tool measures rendered text width and gives you an approximate preview. How the result finally looks in Google depends on the query, the device and the layout of the results page.
| Title, desktop | About 580 px, roughly 55–60 characters in normal sentence case. |
| Title, mobile | Wider in practice — mobile results wrap onto a second line rather than truncating as aggressively. |
| Meta description | About 990 px is a working estimate for this preview, not a Google limit. Google can shorten the snippet to fit the device and may pick different page text for each query. |
Meta descriptions are a suggestion, not a directive. Google rewrites them often, especially when text elsewhere on the page matches the query better than your description does. Write one anyway — a good description wins the click when it is used, and writing it forces you to state what the page actually offers.
Every store migration means rewriting hundreds of titles and descriptions, and every one that gets silently truncated costs clicks. We needed a way to check them at a glance without installing anything. Doing it across a full catalogue is part of the Store & Channel Audit.