Title and description
The page title and meta description with character counts, so you can see whether they'll be truncated in search results.
Free Meta Tag & Open Graph Checker
Enter a URL to see how it appears to search engines and when shared: title, meta description, canonical, robots, and Open Graph / Twitter Card tags — with issues flagged.
Start your 7-day trial — no credit card, free plan after.
Check a page's meta tags
Enter a page URL (or domain). NorthDuty fetches it and extracts the SEO and social sharing tags.
Free check. No signup. Results are not published or indexed.
How NorthDuty SEO and meta tag monitoring works
Enter a page URL (or domain). NorthDuty fetches it and extracts the SEO and social sharing tags. Recurring checks are configured inside the NorthDuty app.
What this meta tag checker reports
A single check shows the tags that control your search snippet and social previews.
Canonical and robots
The canonical URL and robots meta directive — the tags that most often cause indexing surprises.
Open Graph tags
og:title, og:description, og:image, og:url, and og:type, which control how the page looks when shared on social platforms.
Twitter Card tags
twitter:card and related tags that determine the X/Twitter share preview.
Why check meta tags
Title, description, and Open Graph tags decide your click-through rate from search and social — and they're easy to break in a template change.
- Confirm your title and description won't be truncated
- Verify the canonical tag points where you intend
- Catch an accidental noindex robots directive
- Make sure shared links show an image and title
- Confirm Twitter Card tags render a rich preview
How the meta tag checker works
No signup — enter a URL and see its tags immediately.
1
Enter a URL
Provide a page URL or a domain; NorthDuty defaults to HTTPS and the homepage.
2
We fetch the HTML
NorthDuty retrieves the page and parses the <head> for SEO and social tags.
3
You get a tag report
See every tag with character counts and a list of issues — no report snapshot is stored.
4
Catch regressions automatically
NorthDuty's health checks cover SEO fundamentals, so a broken title or missing canonical is flagged on a schedule.
What each tag controls
The tags this checker reads, what uses them, and the length worth aiming for.
| Tag | Who uses it | Practical guidance |
|---|---|---|
| Title | Search results, browser tabs | Around 50–60 characters; put the words people search at the front. Google rewrites titles it finds unhelpful |
| Meta description | The snippet under your result | Around 150–160 characters. Not a ranking factor; it is the advert that decides the click |
| Canonical | Search engines choosing between duplicates | Must be an absolute URL pointing at the version you want indexed |
| Meta robots | Indexing and snippet behaviour | A stray noindex here is the single most expensive one-line mistake in SEO |
| og:title / og:description / og:image | Facebook, LinkedIn, WhatsApp, Slack previews | Without og:image, shared links render as a bare grey box. 1200×630 is the safe size |
| twitter:card | X / Twitter previews | summary_large_image for anything with a picture worth showing |
The mistakes worth checking for
All of these are invisible on the page itself.
A noindex that shipped with a launch
Staging settings copied to production. The page looks perfect and quietly leaves the index within days.
The same title on many pages
Common on template-built sites and paginated archives. If two pages compete for one query, neither wins cleanly.
Canonical pointing at the homepage
A plugin misconfiguration that tells Google every page is really the homepage — and the rest deserve no place in the index.
A missing or broken og:image
Every share of that link looks unfinished. Check the image URL resolves, not just that the tag exists.
Descriptions written for robots
Keyword-stuffed descriptions get rewritten by Google anyway. Write the sentence that earns the click.
Tags that changed without anyone noticing
Theme updates and SEO-plugin migrations rewrite these in bulk. Re-check key pages after either.
Go Beyond One-Off Checks
Use the tool preview for a quick answer, then move into recurring monitoring for your most important pages and journeys.
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Website Monitoring Checklist: 41 Checks
Use this 41-point website monitoring checklist to cover uptime, SSL, DNS, forms, checkout, journeys, alerts, launch checks, and incident response.
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Pricing
NorthDuty plans are sized by how many checkout, signup and login journeys you monitor: Free, $29 Starter, $79 Pro, $199 Business. 7-day trial, no card.
Compare pricing plansFrequently Asked Questions
Answers about this diagnostic preview and when to move into recurring monitoring.
How long should a title tag and meta description be?
Roughly 50–60 characters for the title and 150–160 for the description. Both are truncated rather than penalised when longer, so the rule is to put what matters first.
Why does my link preview show no image?
Either no og:image tag, or a tag pointing at a URL that does not resolve publicly. Platforms also cache previews aggressively — after fixing the tag, use the platform's own debugger to refresh what it stored.
Is the meta description a ranking factor?
No. It influences whether someone clicks your result, which is worth more attention than most on-page tweaks. Google will replace it with page text when it thinks that serves the query better.
What does a canonical tag do?
It tells search engines which URL is the real version when several show the same content — filters, tracking parameters, print views. Pointed at the wrong URL, it removes pages from the index as effectively as noindex.
Is this meta tag checker free?
Yes. It's free and requires no signup. Enter a URL and you get its meta and Open Graph tags immediately.
What tags does it check?
Title, meta description, canonical, robots, the main Open Graph tags (og:title, og:description, og:image, og:url, og:type, og:site_name), and Twitter Card tags.
Why does it flag my title or description length?
Search engines truncate long titles (around 60 characters) and descriptions (around 160). The tool flags lengths likely to be cut off so you can tighten them.
Does this guarantee a good search snippet?
No. Search engines sometimes rewrite snippets. Well-formed tags strongly influence the result but don't guarantee it.
Start monitoring your website with NorthDuty today.
A template change can wipe your meta tags without anyone noticing. NorthDuty monitors SEO fundamentals continuously, so a broken title or canonical surfaces fast.
7 days with Pro features and limits, no credit card — then keep one daily journey on the free plan.