What we check
Crawling and speed
- HTTPS
- The page loads over https, and http redirects to it.
- Status and redirects
- The page answers 200, after one redirect at most.
- Allowed in robots.txt
- robots.txt lets Googlebot and Bingbot crawl the page.
- Response time
- How long the HTML takes to arrive. Under a second is good.
- HTML size
- Under 500 KB of HTML, so the page loads fast on phones.
Search result
- Title
- Present, and 30 to 60 characters so it isn't cut off.
- Meta description
- 110 to 160 characters, written for the search snippet.
- Canonical URL
- Points to the page itself, so copies don't compete with it.
- Indexable
- No noindex in a robots meta tag or X-Robots-Tag header.
- Language
- The <html> tag names the page's language.
- Mobile viewport
- A viewport tag, so phones get the mobile layout.
Content
- One H1
- One main heading that says what the page is.
- Heading order
- H1, then H2, then H3, without skipping levels.
- Word count
- At least 300 words of text in the HTML.
- Image alt text
- Every image has an alt attribute.
- Links
- Internal and external links crawlers can follow.
Social sharing
- Open Graph tags
- Title, description, image, URL and type for link previews.
- X (Twitter) card
- A large card with a title and image when shared on X.
Structured data
- Structured data
- schema.org JSON-LD or microdata on the page.
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