This reads a search signal.
You want to see the title, description, canonical and robots tags the page actually outputs, plus a rough search-result preview.
Website & SEO
See the title and description Google gets.
Fetch a public page, inspect its title, description, robots and canonical tags, then preview the basic search snippet.
Useful to know
Four things worth knowing.
A clean signal is not a ranking promise.
Google can rewrite titles and descriptions, so no preview can promise the exact live snippet.
Check the live response too.
Confirm the source title and description say the important thing clearly before worrying about an exact character count.
Fix blockers before polish.
Use the preview to catch missing, duplicated or obviously awkward metadata, not to chase pixel-perfect Google output.