Check your website's on-page SEO and technical basics — title tags, meta descriptions, headings, images, robots.txt and more. Get an instant score with clear, actionable findings.
This tool checks the foundational on-page and technical SEO elements that affect how search engines understand and rank your site — title tags, meta descriptions, heading structure, image alt text, mobile-friendliness, and the presence of robots.txt and sitemap.xml. It's not a replacement for full SEO platforms like Ahrefs or SEMrush (which track backlinks, keyword rankings and competitor data), but it's a fast, free way to catch the basics that are often missed.
Checks title length, meta description presence and length for search snippet optimisation.
Verifies a single H1 exists and headings follow a logical hierarchy.
Flags images missing alt attributes, which hurts accessibility and image search visibility.
Checks viewport meta tag, HTTPS, robots.txt and sitemap.xml presence.
Automatic fetching relies on free third-party proxy services to bypass browser security restrictions (CORS). These free services have rate limits and occasional downtime, so automatic fetching can fail even on perfectly normal sites. The "paste HTML source" option always works, regardless of the site.
No. This tool focuses on on-page and technical basics only. Backlink and ranking data requires paid third-party APIs (Ahrefs, SEMrush, Moz) which this free tool doesn't use.
No. The page content is analyzed entirely in your browser and never stored or logged by this site.
80+ indicates solid on-page fundamentals. Scores below 60 usually mean missing basics (title/meta tags, alt text, robots.txt) that are quick wins to fix.
Search engine optimisation covers a vast range of techniques, but the fundamentals that consistently make the biggest difference for most websites are surprisingly straightforward. On-page SEO — the technical and content elements within your own pages — is the foundation everything else is built on. Without getting the basics right, no amount of link building or social media activity will move your rankings significantly.
The title tag is the single most important on-page SEO element. It tells search engines what your page is about, appears as the clickable headline in search results, and is one of the strongest ranking signals available to you. Each page should have a unique, descriptive title of 50-60 characters that includes your primary keyword near the front. The meta description doesn't directly affect rankings but significantly impacts click-through rates — a well-written description that clearly explains what the page offers and includes a call to action can meaningfully increase the traffic you get from the same search position.
Heading structure (H1, H2, H3) serves two purposes: it organises your content for readers and signals to search engines what the key topics of your page are. Every page should have exactly one H1 containing your primary keyword, with H2s and H3s used to structure subsections logically. Images should always have descriptive alt text — this helps search engines understand image content and is also essential for accessibility. Pages without alt text on images miss both ranking opportunities and accessibility compliance.
Page speed is both a ranking factor and a user experience issue. Google uses Core Web Vitals — a set of metrics measuring loading speed, visual stability and interactivity — as part of its ranking algorithm. Large uncompressed images, render-blocking JavaScript, and missing browser caching are the most common causes of poor page speed scores. Compressing images before uploading them to your site is one of the highest-impact, lowest-effort improvements you can make.
The canonical tag tells search engines which version of a page is the authoritative one — important when the same content is accessible via multiple URLs (with and without www, with and without trailing slashes, HTTP and HTTPS). Without canonical tags, search engines may split ranking signals across duplicate versions of your pages, weakening all of them. The Open Graph tags (og:title, og:description, og:image) control how your page appears when shared on social media — these don't affect search rankings directly but significantly impact engagement when your content is shared.
On-page SEO changes typically take 2-8 weeks to show in search results, as Google needs to recrawl and reindex your pages. For new websites, it can take 3-6 months to start ranking for competitive terms. Technical fixes like improving page speed can show faster results as Google recrawls more frequently once it detects changes.
Yes, directly. Google includes Core Web Vitals as a ranking signal for all searches. More importantly, slow pages have significantly higher bounce rates — users leave before the page loads, which is both a poor user experience and a negative ranking signal. Pages loading in under 2 seconds convert and retain users far better than slower alternatives.
Duplicate or missing title tags and meta descriptions across multiple pages. Many website builders generate the same title for every page, which confuses search engines and wastes ranking potential. Each page should have a unique title and description that accurately reflects its specific content. This is one of the easiest fixes with one of the highest returns.