SEO length guidelines
- Title — keep under 60 characters; Google truncates around 580 px which is ~50–65 chars depending on letter widths.
- Description — 150–160 chars on desktop, ~120 on mobile.
- OG image — 1200 × 630 px, < 8 MB. Twitter
summary_large_imageuses the same.
FAQ
Is the keywords meta still useful?
Google ignores it. Bing and Yandex give it minimal weight. It's optional — leave blank if you don't want it.