Meta title
Present, unique and 30 to 60 characters so it is not cut off in search results.
Free tool
On-Page SEO Checker
Enter a page URL and get an instant audit of the top 20 on-page checks: meta title, meta description, H1, H2 and H3 headings, internal links, image alt text and other on-page basics.
What the on-page SEO checker looks at
Meta description
Present and 70 to 160 characters, written to earn the click.
H1 heading
Exactly one non-empty H1 that describes the page.
H2 and H3 headings
Content is structured with headings in a logical order, with no skipped levels.
Internal and external links
Counts links, flags generic anchors such as "click here" and internal nofollow.
Image alt text
Finds images missing alt attributes and images without width and height.
Sitemap and robots.txt
Checks the site has a valid XML sitemap and a robots.txt that does not block search engines.
Canonical, indexing and HTTPS
Confirms the page can be indexed, has a canonical tag, is secure and has no mixed content.
Page speed and size
Flags pages that take more than 3 seconds to respond and heavy HTML.
Mobile, language and URL
Viewport tag, html lang attribute, underscores, URL length and parameters.
Open Graph and schema
Social sharing tags and JSON-LD structured data.
Content and target keyword
Word count, plus keyword in title, description, H1, URL, intro and alt text.
A clean report is a starting point, not the finish line. Rankings also depend on content quality, backlinks and technical health. My SEO services cover all three, and technical SEO goes deeper into crawling, speed and indexing. Building a new site? See website design that bakes these basics in. Also try the Keyword Match Type Tool for your Google Ads lists.
On-page SEO checker questions answered
What is on-page SEO?
On-page SEO covers everything you control on a page itself: the title, description, headings, copy, images, internal links and technical tags. Getting these right helps search engines understand the page and helps searchers choose it.
Does this tool use AI?
No. Every result comes from fixed rules applied to the page's HTML, so the same page always gives the same answer. It checks what is present or missing, not whether the writing is good.
How many H1 tags should a page have?
One. A single H1 tells visitors and search engines the main topic of the page. Use H2 and H3 headings for sections and sub-sections beneath it.
What is the ideal meta title and description length?
Roughly 30 to 60 characters for titles and 70 to 160 for descriptions. Google measures by pixel width, so these are guides, not hard limits.
Why does the tool say my page cannot be fetched?
Some sites block automated requests or take too long to respond. Switch to Paste HTML, copy the page source from your browser and the same checks will run.
Is my data stored?
No. The page is fetched, analysed in your browser and not saved. If you request a full audit, only the details you enter in the form are sent to me.
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