03 / Crawl
On-page checks review the HTML elements that shape how a page appears in search results and social shares: the title tag, meta description, H1 heading and Open Graph tags.
On-page SEO elements are the parts of a page you control directly. SiteAuditLint extracts the title, meta description, headings and social tags from every crawled HTML page, measures lengths, and compares values across the site to find duplicates.
1. Title tags
The title tag is the strongest on-page relevance signal and usually becomes the clickable headline in search results. Each page needs exactly one unique, descriptive title.
CriticalMissing title tag
The title tag is the main headline shown in search results and a strong relevance signal.
How to fix: Write a unique, descriptive title of roughly 30 to 60 characters that includes the page's main topic.
WarningMultiple title tags
More than one title tag makes it unclear which one search engines should use.
How to fix: Keep a single title tag in the head.
OpportunityTitle over 60 characters
Long titles are usually truncated in search results, hiding part of the message.
How to fix: Shorten the title and move the most important words to the front.
OpportunityTitle under 30 characters
Very short titles miss the chance to describe the page and match more queries.
How to fix: Expand the title with the page's main topic and a clear benefit or qualifier.
WarningDuplicate title
Several indexable pages share this title, which makes them compete with each other and confuses searchers.
How to fix: Give every indexable page a unique title that reflects its specific content.
2. Meta descriptions
The meta description does not directly affect rankings, but it shapes the search snippet and click-through rate. The audit checks presence, length between 70 and 160 characters, and uniqueness.
WarningMissing meta description
Search engines will generate a snippet themselves, which is often less compelling and lowers click-through rate.
How to fix: Write a unique meta description of roughly 70 to 160 characters that summarises the page and invites the click.
OpportunityMeta description over 160 characters
Long descriptions are usually truncated in search results.
How to fix: Tighten the description so the key message fits within about 160 characters.
OpportunityMeta description under 70 characters
Short descriptions waste snippet space that could sell the page.
How to fix: Expand the description with a clear summary and a reason to click.
OpportunityDuplicate meta description
Several indexable pages share this description, so snippets fail to differentiate them.
How to fix: Write a unique description for each indexable page.
3. H1 headings
The H1 names the primary topic of the page. The URL details panel shows each page's heading outline so you can see the H1 next to the title and the H2 and H3 structure.
WarningMissing H1
The H1 tells users and search engines what the page is about.
How to fix: Add one H1 that states the page's main topic.
OpportunityMultiple H1 headings
Several H1s can dilute the main topic signal and weaken the heading hierarchy.
How to fix: Use a single H1 and structure the remaining sections with H2 and H3.
For a full explanation of heading hierarchy, read the Academy lesson on H1s.
4. Open Graph tags
Open Graph tags control the title, description and image shown when a page is shared on social platforms and in chat apps. Pages missing og:title, og:description or og:image get a generic preview.
OpportunityIncomplete Open Graph tags
Without og:title, og:description and og:image, shared links on social and messaging apps look plain.
How to fix: Add the missing Open Graph tags to the head.
5. Reviewing on-page data in the app
| Where | What you see |
|---|---|
| Pages > On-Page | Titles, meta descriptions and H1s with lengths, filtered by problem |
| Issues | Every on-page issue with affected URLs and evidence |
| URL details | Title and description length, full heading outline and meta tags for one page |
| Export | Copy URLs or export affected URLs to CSV for your content team |
On-page quick review
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Frequently asked questions
What title tag length does SiteAuditLint recommend?
Titles between 30 and 60 characters. Titles over 60 characters are likely to be truncated in search results, and titles under 30 characters usually leave out useful context. Both are opportunities, not errors.
Is a missing meta description critical?
It is a warning. Search engines write their own snippet when the description is missing, which is often less compelling. A missing title tag, by contrast, is critical.
Are multiple H1 headings an error?
They are reported as an opportunity. Multiple H1s can be valid in some layouts, so review them in context. A missing H1 is a warning.
Want the background first? Browse the SiteAuditLint Academy, or see all features.