Search engines can only send you traffic if they can crawl your pages, understand them, and trust the links between them. Small technical faults quietly undermine all three: a broken link here, a missing title there, a page accidentally set to noindex. The SEO Health Audit takes up to 100 of your site's pages, checks each one against a fixed set of rules, and shows you exactly what is holding it back.
What it is
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Why it matters
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Broken-link checking
For every page it audits, the audit follows the links and records what each one returned:
- A link that returns a 4xx or 5xx error, or fails entirely (a timeout or DNS failure with no response), is flagged as a broken link at serious severity, with the page it was found on and the URL it points to.
- A link whose host blocks our check (for example returns 403, 405 or 999) is flagged as an unverified link at moderate severity. It means "we could not confirm this one", not "this is definitely broken", so you can check it by hand.
- A link that redirects more than twice before reaching its destination is flagged as a long redirect chain at minor severity. Chains waste crawl budget and slow the page.
The on-page and site checks
Each page is held to a fixed ruleset. Here is what it looks for and the thresholds behind the verdicts:
- Page status. A page returning a server error (5xx) is critical; a 4xx is serious.
- Title tag. A missing title is serious; a title duplicated across pages is moderate; a title outside the recommended 10 to 65 characters is minor. A page gets only one title finding, worst first.
- Meta description. Missing, duplicated, or shorter than 50 or longer than 200 characters is flagged as minor.
- H1 heading. Exactly one H1 is ideal. None, or more than one, is flagged as minor.
- Canonical tag. A canonical pointing to a different host is moderate; a missing canonical is minor.
- Indexability. A live page carrying a
noindexis critical, because it tells search engines to drop the page entirely; this is one of the most damaging faults there is and often a mistake left over from staging. - Image alt text. Pages with images missing alternative text are flagged as minor, with examples of the offending images.
- Open Graph tags. Missing
og:title,og:descriptionorog:image(which control how the page looks when shared) is minor. - Mixed content. An HTTPS page loading insecure HTTP resources is moderate; browsers may block those resources and warn visitors.
Alongside the per-page checks, a few run once for the whole site:
- robots.txt. A robots file that blocks all crawlers is critical; a missing one is minor.
- XML sitemap. No sitemap found, and none referenced in robots.txt, is minor.
- HTTPS enforcement. If plain HTTP does not redirect to HTTPS, that is serious.
- Canonical host. If both the www and the bare domain resolve without one redirecting to the other, that splits your ranking signals and is flagged as minor.
- Soft 404. If a made-up, non-existent URL returns a 200 "OK" instead of a real 404, that is a soft 404, flagged as minor.
How severity works
Every finding is one of four severities: critical, serious, moderate or minor. Reports are ordered worst first, and the site is given an overall score out of 100 and an A to F grade so you can track it over time. The severity tells you where to spend your time: fix the critical noindex and broken-link problems before you worry about a title that is a few characters too long.
It is rules, not an AI opinion
The per-page status dot
Each page's worst open SEO issue is summarised as a coloured status dot on the site's Sitemap tab, alongside the dots for your other checks. A critical or serious issue shows red, a lesser issue amber, a clean page green, and a page the audit has not covered shows a grey dot. It lets you see at a glance which pages need work without opening the full report.
What you need before you start
- A monitored website to audit. Add the site first if you have not (see Add your first website).
- Scan credits. The SEO audit draws on the shared scan-credit pool, at one credit per ten pages, rounded up. A run covers up to 100 pages.
You do not pick pages by hand. The audit uses your site's page registry (the same list the Sitemap tab shows). When you run it yourself it always includes the homepage, and discovers pages afresh if that registry is empty. Anything beyond the 100-page cap is left out.
Baseline and continuous monitoring
Turn monitoring on for a domain and TLDTrack re-audits it on a schedule and compares each audit against a baseline, so you are alerted about issues that are new since you last banked a clean state, not the backlog you already know about.
- Choose a cadence of daily, weekly or monthly.
- Set a grade floor (A to F) so a drop below the standard you hold the site to can alert you.
- Re-set the baseline whenever you want to record fixes and measure future audits against the improved site.
How to run one, step by step
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1
Open the site from your Domains list and go to its SEO Health tab.
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2
Run an audit. It checks up to 100 pages and the links on them, and evaluates each page against the ruleset, returning a scored report within a few minutes.
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3
Work through the findings worst first. Critical issues (a live noindex, a robots file blocking crawlers, server errors) and broken links come before cosmetic length warnings.
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4
Dismiss any finding that is a deliberate choice, so it stops appearing, and restore it later if you change your mind.
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5
When you are ready, switch on Monitor continuously, pick a cadence and set a grade floor, then use Set current as baseline so future audits alert you only about what is new.
Where to set this up
Run and monitor the SEO audit on a site's SEO Health tab.
Learn moreSee the full monitoring stack.
Good to know
- The SEO audit shares the scan-credit pool with security scans, compliance and accessibility. One credit covers up to ten pages; a run covers up to 100.
- It is fully rule-based and repeatable, with no AI judgement.
- Pages are taken from your site registry automatically; there is no per-page picker.
- A live
noindexand broken links are the highest-impact faults it finds, so fix those first. - The per-page dot on the Sitemap tab shows each page's worst open issue at a glance.