Meta description: 155 chars that earn the click

The description doesn't rank. The click does.

Google says explicitly: meta description is not a ranking signal. But it IS the snippet that decides whether a searcher clicks YOUR result vs the one above it. A better description = higher CTR = more eventual rankings (CTR feeds back into ranking).

What works

<meta name="description"
      content="1,350+ interactive Python lessons with an AI mentor. Free first 15 — no signup. 18 languages." />

The good ones:

1. Open with the concrete value (1,350+ lessons, AI mentor) — not "Welcome to..."
2. One tangible feature, one differentiator, one CTA-flavored verb
3. Mirror the search intent — if the user searched "learn python interactively," the word "interactively" or "interactive" should be in the description (it gets bolded in the SERP).

Length

Around 155 characters. Google may show 155-160 (sometimes 320 on mobile). Anything beyond gets truncated with "…". First 100 characters carry the most weight.

What kills CTR

• "Welcome to our site"
• "We offer the best..."
• Listing every feature (5 commas, no narrative)
• Identical descriptions across pages (Google may pick a snippet from your body instead)

When Google ignores it

If your description doesn't match the search intent, Google extracts a snippet from your body content instead. Your description is a STRONG hint, not a guarantee. Write good copy AND good headings.