Meta Tag Checker and SERP Preview
Type a title and description to see how your page could look in Google on a phone or desktop, or paste the page's HTML to check 17 things at once: title, description, robots, canonical, Open Graph, JSON-LD, headings and image alt text. Google sets no length limit; it cuts titles and snippets to fit the screen.
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How to check your meta tags
- Type your title and description to preview them and see the character counts.
- For a full check, open your page and press Ctrl+U (or type view-source: before the address).
- Copy all the HTML and paste it into the box. The fields fill themselves and every check runs.
- Fix the red items first (noindex, missing viewport, broken JSON-LD), then the orange ones.
- Edit your title and description here until the preview reads well, then copy them into Blogger or WordPress.
What is checked
| Check | Result | Detail |
|---|---|---|
| Title tag | Warning | 4 characters: short; add a few descriptive words. |
| Meta description | Warning | Missing. Google will build a snippet from the page text. |
| Robots meta | Error | noindex: this page will not appear in Google. |
| Canonical URL | Warning | /blog/: use a full URL. |
| Viewport | Error | Missing: the page will not fit phones. |
| Language | Warning | Add lang to <html>, e.g. lang="ms" or lang="en". |
| Character set | Warning | Add <meta charset="utf-8"> as the first tag in <head>. |
| H1 heading | Info | 2 H1 headings. Allowed, but one main heading is clearer. |
| Image alt text | Warning | 1 of 2 images have no alt attribute. |
| Open Graph | Warning | Missing og:type, og:url (needed for Facebook and WhatsApp previews). |
| og:image | Warning | Use a full URL starting with https://. |
| Twitter / X card | Info | No twitter:card; X falls back to Open Graph. |
| Structured data | Error | 1 JSON-LD block(s) are invalid JSON: Expected double-quoted property name in JSON at position 24 (line 1 column 25) |
| Favicon | Info | No <link rel="icon">; Google shows a favicon next to results. |
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Title and description lengths
Google's documentation says there is no limit on the length of a title element or a meta description; both are truncated as needed to fit the device width. The ranges below are common practice that usually shows in full, not Google rules.
| Tag | Usually shows in full | Google limit |
|---|---|---|
| Title | 30 to 60 characters | None (truncated to fit) |
| Meta description | 70 to 160 characters | None (truncated to fit) |
Note: the preview imitates the layout of a search result to help you write; Google's real result can use different text, sitelinks or images, and changes its design over time.
Sources
Frequently asked questions
How long should a title tag be?
Google sets no limit: its documentation says the title link is truncated as needed to fit the device width. In practice about 30 to 60 characters usually shows in full, so the checker flags titles outside that range. Put the most important words first, make each page's title unique, and avoid repeating keywords.
How long should a meta description be?
There is no limit, but Google cuts the snippet to fit the screen, so 70 to 160 characters is a common target. Write a specific summary of the page with the key fact first. Google may still show different text taken from the page if it matches the search better.
Why does Google show a different title or description?
Google writes title links and snippets from several sources: the title tag, the main heading, other prominent text and the meta description. It rewrites them when they are missing, too long, stuffed with keywords or do not match the query. A clear, unique title that matches your H1 is shown as written more often.
How do I check the meta tags of any page?
Open the page, press Ctrl+U (or add view-source: before the address on a phone) to see the HTML, copy everything and paste it into the HTML box. The checker reads the head and body without loading the page, so it also works for pages on your own computer or behind a login.
What are Open Graph tags?
Open Graph tags (og:title, og:type, og:image and og:url, which the protocol requires, plus og:description) control the title, picture and text that Facebook, WhatsApp, LinkedIn and Telegram show when your link is shared. og:image must be a full https:// address. X uses twitter:card and falls back to Open Graph.
Does the meta keywords tag help SEO?
No. Google does not use the keywords meta tag for ranking, so the checker ignores it. Use the focus keyword box instead: it checks whether your main phrase appears in the title, description, H1 and URL, where it helps people choose your result.
What does the score mean?
Each check counts as a pass (full point), a warning (half) or an error (zero); information-only items are not scored. 100 means every check passed. An error such as noindex or a missing viewport matters far more than a title that is a few characters long, so fix errors first.
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