51 Check Types

Monitor HTTP responses, server behavior, redirects, and technical foundations of your pages.

• HTTP Status Code Response status code (200, 301, 404, 500, etc.). Detect broken pages and unexpected redirects.
• Response Time Server response time in milliseconds. Catch performance regressions before they affect rankings.
• X-Robots-Tag All X-Robots-Tag HTTP header directives. Detect accidental noindex or nofollow added at the server level.
• X-Robots-Tag Noindex Specifically detects noindex/none in X-Robots-Tag. Prevent pages from silently dropping out of the index.
• Content-Type MIME type from Content-Type header (text/html, application/json, etc.). Ensure pages are served as HTML.
• Compression Content-Encoding header value (gzip, br, deflate). Verify compression is active for faster page loads.
• Page Size Response body size in bytes from Content-Length header. Monitor for unexpectedly large or empty responses.
• HTTP Canonical Link Canonical URL from the Link HTTP header (rel=canonical). Some sites set canonicals at the server level.
• Redirect Chain All URLs in the redirect chain. Detect redirect loops and unnecessary hops that waste crawl budget.
• Final Redirect URL The final destination URL after all redirects. Ensure redirects land where you expect.
• Number of Redirects Count of redirect hops. Keep redirect chains short (ideally 1 hop, maximum 3).

Track page titles, headings, meta tags, images, and on-page text content.

• Page Title The <title> tag content. The most important on-page SEO element, shown in search results.
• Title Length Character count of the page title. Google typically displays 50-60 characters in SERPs.
• Meta Description Content of the meta description tag. Controls the snippet shown in search results.
• Meta Description Length Character count of meta description. Recommended length is 150-160 characters.
• Meta Keywords Content of meta keywords tag. Deprecated by most search engines but still used in some markets.
• Text Content All visible text content extracted from the page body. Useful for detecting content changes.
• Word Count Number of words in the visible body text. Monitor for accidentally stripped or duplicated content.
• Body Last Word Last significant word from the body text. Quick indicator that the full page rendered correctly.
• First H1 Heading Text of the first H1 tag. Every page should have exactly one H1 matching the topic.
• Second H1 Heading Text of the second H1, if present. Most pages should have only one H1.
• H1 Count Total number of H1 headings on the page. Best practice is exactly 1 per page.
• First H2 Heading Text of the first H2 heading. Verify your content structure stays consistent.
• Second H2 Heading Text of the second H2 heading. Track changes in content subheadings.
• Third H2 Heading Text of the third H2 heading. Monitor content section ordering.
• H2 Count Total number of H2 headings. Track content structure changes over time.
• Image Count Total number of <img> elements. Detect missing or duplicate images.
• First Image URL Source URL of the first image. Verify hero images and product photos remain in place.
• First Image Alt Text Alt text of the first image. Alt texts are crucial for accessibility and image SEO.
• CSS Selector Extract any value using a CSS selector (.class, #id, [attr]). Full flexibility for custom checks.
• XPath Expression Extract any value using XPath expressions. The most powerful extraction method for complex DOM structures.

Ensure search engines can properly discover, crawl, and index your pages.

• Canonical URL The <link rel="canonical"> tag. Prevents duplicate content issues by telling Google which URL is the original.
• Robots Meta Robots meta tag directives (index, noindex, follow, nofollow). Detect accidental noindex that removes pages from search.
• Hreflang Links All hreflang alternate link tags. Critical for international SEO to ensure correct language/region targeting.
• Viewport Meta Content of the viewport meta tag. Required for mobile-friendly pages and proper responsive rendering.

Monitor Open Graph metadata for correct display when your pages are shared on social media.

• OG Title The og:title meta tag. Controls the title shown when your page is shared on Facebook, LinkedIn, and other platforms.
• OG Description The og:description meta tag. Controls the description text in social media cards and previews.
• OG Image The og:image meta tag URL. Defines the preview image for social sharing. Missing images hurt click-through rates.
• All Open Graph Tags All og: meta tags as a collection. Comprehensive view of your entire Open Graph implementation.

Validate JSON-LD structured data that powers rich results in Google Search.

• JSON-LD Schema Types All @type values from JSON-LD blocks (WebSite, Organization, Product, Article, etc.). Verify correct schema types.
• JSON-LD Block Count Number of JSON-LD entities on the page, including @graph items. Detect missing or extra structured data.
• JSON-LD Site Name The name property from WebSite schema. Powers the site name display in Google Search results.
• JSON-LD Search Action SearchAction target URL template from WebSite schema. Enables the sitelinks searchbox in Google.
• JSON-LD Data Full JSON-LD structured data with dot-notation support. Deep validation of any structured data property.

Track analytics tags, language settings, and internal/external link structure.

• HTML Language The lang attribute on the <html> element (en, cs, de, etc.). Important for accessibility and search engine localization.
• GTM Container ID Google Tag Manager container ID (GTM-XXXXXXX). Verify GTM is properly installed and not accidentally removed.
• GA4 Measurement ID Google Analytics 4 measurement ID (G-XXXXXXXXX). Ensure analytics tracking is active on all pages.
• First Internal Link Href of the first internal link on the page. Monitor navigation structure and internal linking.
• Last Internal Link Href of the last internal link. Detect changes in footer navigation and link structure.
• First External Link Href of the first external link. Track outbound links for partner and affiliate monitoring.
• Last External Link Href of the last external link. Monitor changes in outbound linking patterns.