A suite of technical SEO tools - each runs an instant check on your page, no signup. Try one below, then crawl your whole site against 180+ checks for free.
Instant, free, no account needed - homepage checked on the spot.
Make sure search engines can find, crawl and index your pages.
The full crawl-based audit: indexability, canonicals, hreflang, schema, sitemaps and redirects across every page.
Find pages Google can't index: noindex tags, robots.txt blocks, canonical conflicts and crawl issues.
Locate and validate your XML sitemap - structure, URL count, HTTPS consistency and live status.
Check rel=canonical tags: self-referencing, resolving to live 200 URLs, no canonical-to-redirect.
The page-level signals that control how you appear in search and on social.
Title, meta description, canonical, viewport and Open Graph tags - present, sized right, correct.
Find broken internal and outbound links, redirect chains and broken redirects, with their source pages.
Validate reciprocal hreflang, self-references and language codes for international sites.
Speed is a ranking factor and what users feel first.
Pick the right tool, and audit the platform you are on.
11 free tools tested and compared, grouped by the job they do.
Web-based crawlers with no install, RAM limit or URL cap.
A full-site audit from $9 one-time, no subscription.
The technical issues WordPress sites are prone to.
The technical issues Shopify stores are prone to.
An honest side-by-side of where each tool wins.
Each instant check looks at one page. The full Kalenux SEO Audit crawls your entire site against 180+ technical checks plus PageSpeed, tracks your health score over time, and exports everything - built by a team that runs 10+ production sites in 15+ languages on the exact same engine.
Every tool on this page runs an instant homepage check with no signup and no account. The instant checks work straight from the form: paste a URL, get results on the spot.
You only create an account to crawl your entire site against all 180+ checks, and that is free to start too: a credit lands on signup so your first full audit costs nothing.
The instant check reads a single page, your homepage, on the spot. The full audit is a different piece of work: it crawls every page on your verified site against 180+ rules plus PageSpeed, tracks your health score over time so you can see whether a release helped or hurt, and exports every issue to CSV for handing to a developer.
Those are broad keyword and backlink suites priced at $100 or more per month, with technical health as one section among many. These tools are narrower on purpose: technical site health and PageSpeed, at one-time pricing rather than a subscription. See the full comparison for an honest side-by-side of where each wins.
1 free credit on signup - one complete audit. No credit card required.
Start your free audit