Free tools
Free SEO tools that don't need a sign-in
Small interactive helpers, free to use. Most run entirely in your browser — no sign-in, no quota spent. One connects to your own Search Console to check real index status.
On your own Search Console
AI search & discoverability
IndexNow checker
Enter your domain and IndexNow key. We verify the key file is hosted correctly — reachable, plain-text, exact match — so Bing, Yandex, Seznam, and Naver accept your submissions.
Discoverability Score
A 0–100 score for how findable your site is across Google and AI search — robots.txt, llms.txt, structured data, sitemap, canonical, Open Graph, HTTPS.
AI citation & brand mention checker
Enter your domain (and brand). We ask an AI model which sources it would cite for real queries and check whether you show up — then scan your homepage for the off-site brand signals (YouTube, social profiles) that, per Ahrefs, correlate most with AI visibility.
AI Crawler Access Checker
Paste your domain. We read its robots.txt and tell you which AI crawlers (GPTBot, ClaudeBot, PerplexityBot, Google-Extended, CCBot, Bytespider…) can crawl your content — and which are blocked.
llms.txt validator
Paste or fetch an llms.txt and lint its structure, sections, and links — what LLMs use to pull clean citations.
User-Agent lookup
Paste a User-Agent string and identify AI crawlers, search bots, SEO tools, and browsers behind it.
SEO inspectors
Indexability checker
Paste any URL. We fetch it live and run every signal Google uses to decide if a page can be indexed — HTTP status, redirects, X-Robots-Tag header, meta robots, canonical, and robots.txt — then give one plain-English verdict.
Canonical & meta finder
Paste a page's HTML. We extract the canonical URL, robots meta, title, description, hreflang, Open Graph, and JSON-LD types — and flag indexability bugs.
Schema markup inspector
Fetch a URL and extract every JSON-LD / microdata Schema.org block. We validate required fields and flag which types are eligible for Google rich results.
Schema markup generator
Pick a type — Organization, WebSite, Article, Product, FAQ, Breadcrumb, LocalBusiness — fill a form, and get copy-paste JSON-LD with live required-field validation.
SERP snippet preview
Preview how your title and description render on Google desktop and mobile, with pixel-accurate truncation.
Open Graph preview
See how a URL renders when shared on Facebook, LinkedIn, Slack, and X — and which tags are missing.
Redirect chain checker
Follow every HTTP redirect hop for a URL and surface long chains and HTTPS downgrades.
Hreflang tester
Validate hreflang annotations, x-default, self-reference, and that every alternate reciprocates.
Robots, crawl & lists
Robots.txt tester
Paste a robots.txt plus a URL and User-Agent; we tell you which rule matches and whether it's allowed.
Sitemap diff
Compare two sitemaps or URL lists — added, removed, unchanged — and copy the added set.
URL list cleaner
Paste a messy list of URLs and get back a deduped, normalized, validated, sorted list ready to submit.
Planning
Credit calculator
Tell us how many URLs over how many days; we work out free pushes, packs needed, and the bottom-line cost.
Indexing time estimator
Answer a few questions about your site — age, authority, how you submit, content type — and get a realistic window for how long Google takes to index a new page, plus the levers that speed it up.
Google API quota calculator
Map your daily URL volume against Google's Indexing API (200/day) and URL Inspection (2,000/day) limits. See how many service accounts a DIY setup needs — and where IndexerNow's free tiers and credits land.