Meta tags for SEO: how to write a title and meta description

Which meta tags are worth checking for SEO, how to write a useful page title and meta description, and what to review before publishing a page.

Meta tags will not turn an average page into a top search result on their own. They still shape how your page appears in Google, how it looks when shared, and whether search engines understand which URL should be indexed.

That is why they are worth a few minutes of attention. Many websites still have empty meta descriptions, the same title repeated across dozens of pages, or a canonical tag pointing to the wrong URL.

This guide covers the meta tags that are still worth caring about, how to write a clear title and meta description, and how to check a page before publishing it.

Which meta tags matter

Not every meta tag deserves the same attention. For SEO and sharing, these are the ones to check first:

• Title - the main page title shown in search results and one of the most important sources for the clickable result text.
• Meta description - a short page summary. Google may not show it every time, but it often uses it when building the search snippet.
• Canonical - tells search engines which version of a page you consider the main one.
• Robots meta tag - controls indexing. An accidental noindex can remove a page from search results.
• Open Graph and Twitter card - control how the page looks when shared on social networks and in messaging apps.
• Structured data (JSON-LD) - helps search engines understand what the page is about.

Meta keywords, on the other hand, are not worth your time. Google has not used them for ranking for years, and they do not help a normal website.

How to write a good page title

The page title, meaning the title tag, should be clear, specific, and short enough to work in search results. It is not a place to list every keyword you can think of.

Use these rules:

• Put the most important words first. "Emergency dentist in Chicago" is clearer than "Our services for patients".
• Be specific. Words like "Home", "Services", or "Products" do not say much on their own.
• Do not reuse the same title everywhere. Every important page should have its own title.
• Add the brand briefly. For articles and subpages, the brand name usually works best at the end, separated by a hyphen or vertical bar.
• Do not make it too long. Google does not have a fixed character limit, but very long titles are often shortened or rewritten. In practice, roughly 30 to 60 characters often works well.

Google may adjust the title in search results based on the query or the page content. That is normal. A good title tag is still the best starting point you can give it.

How to write a meta description

A meta description is not a magic lever for higher rankings. Think of it as a short pitch in search results. If it describes the page well, it can help someone choose your result instead of another one.

A good meta description:

• describes the specific page, not the whole website,
• gives the reader a clear reason to click without overpromising,
• reads like a natural sentence, not a keyword list,
• is unique for every important URL,
• is usually around 70 to 160 characters long.

Example:

Toothache? See where to find an emergency dentist in Chicago, when the clinic is open, and how to book a visit.

If the meta description is missing or weak, Google will pull a snippet from the page content. Sometimes it chooses a useful sentence. Other times it shows part of the navigation, a cookie notice, or a paragraph without enough context.

Canonical and robots: small tags, big indexing problems

Visitors will not notice canonical and robots meta tags, but search engines do. This is where small mistakes can stop the right page from appearing in search results, or make the wrong URL version get indexed.

1. Noindex left behind after launch. During development, pages are often marked noindex so unfinished content does not reach Google. If that tag stays in place after publishing, the page is not meant to be indexed. Also check the X-Robots-Tag HTTP header, because noindex can appear outside the HTML too.
2. Canonical pointing to the wrong URL. If the canonical points to another domain, a parameter version, or a page that no longer exists, you are sending signals away from the page you actually want to rank.

Both should be part of every bigger release check, together with the other items in our website launch checklist.

Open Graph, Twitter card, and structured data

When a page is shared, og:title, og:description, and og:image matter most. The image should use a sensible social sharing format, often 1200 x 630 px, and it should not be blocked in robots.txt. For Twitter cards, summary_large_image is usually enough.

Structured data from schema.org gives search engines clearer information about the page. For a normal website, the useful types are often WebPage, Article for blog posts, FAQPage for frequently asked questions, and Organization for company details.

A one-minute check

Here is a practical way to review a page:

1. Open the meta tags checker and paste the page URL.
2. Review the status code, indexability, title, description, canonical, H1, page language, and structured data.
3. Look at the Google preview. It is the quickest way to see whether the title and description sound natural.
4. Fix the serious issues first: missing title, noindex, wrong canonical, or empty description. Polish the details after that.

Meta tags are best placed directly in the HTML the page sends at the start. If the title, description, or Open Graph data is added later with JavaScript, not every tool, search engine, or sharing service will see it.

Check meta tags whenever you publish a new page, change important content, or launch a redesign. It takes a few minutes and can catch a mistake that would otherwise cost the page search traffic.