The short answer
The title is the clickable line in Google's results, and the description often sits under it. They're the first thing a searcher reads about you, so they decide whether you get the click.
Google sets no fixed character limit for either one. It shortens them to fit the screen, and it rewrites titles that are vague, stuffed with keywords or the same on every page. A specific title that says what the page is, then your brand name, usually shows as written.
What good looks like
- Title: what the page is first, then your brand. "Root Canal Treatment in Jaipur | Smile Dental", not "Home". Short enough to show in full on a phone, often around 50 to 60 characters.
- Description: one or two sentences that sum up what the page answers, with a useful detail such as a price, area or timing. Google often writes its own from your page text, so the page itself matters most.
- Main heading (H1): one per page, saying the same thing as the title in plain words. Google may use it if your title is weak.
- Every page different: the same title on many pages is one of the reasons Google rewrites them.
Questions
Why does Google show a different title from mine?
Google may rewrite a title that is half-empty, out of date, inaccurate, the same as many other pages, or in a different language from the page. Fixing those usually brings your own title back.
How long should a meta description be?
Google has no fixed limit and shortens descriptions to fit the screen. One or two sentences that sum up the page usually work best.
Do AI assistants read my title and description?
They read the page itself. A clear title and main heading help them understand what the page is about, but the content under them is what gets quoted.
Does this tool change my page?
No. It reads one public page and shows what it found, with suggested code to paste yourself.