Free tools
One check, one tool, live results
49 free tools that fetch your page the way Google and AI crawlers do and tell you what’s wrong — and what to change. No signup, no trial, no tracking subscription.
AI search & crawlers
AEO tools answer one question from two sides: can AI crawlers reach and read your site, and do AI assistants actually recommend you? Every tool here runs a live check — no signup, no tracking subscription.
AEO Grader
Free AEO grader: we check AI crawler access, llms.txt, schema, answer-first content and entity signals, then score your AI search readiness 0–100.
AI Crawler Checker
Every major AI crawler — GPTBot, ClaudeBot, PerplexityBot, Google-Extended, Bytespider and more — what each does, plus a 1-click check of your site.
AI Visibility Checker
Free AI visibility checker: we ask ChatGPT your buyers' questions and show whether you're named, where you rank and who wins instead. No signup.
Amazonbot Checker
What is Amazonbot and should you allow it? Check your robots.txt and a live request as Amazonbot, plus what Amazon says it uses the crawler for.
Applebot Checker
Check whether Applebot and Applebot-Extended can crawl your site. One powers Siri and Spotlight, the other controls Apple AI training. See your rules.
Bytespider Checker
What is Bytespider and should you block it? Check your robots.txt and a live request as Bytespider, see what ByteDance uses it for, copy the rule.
ClaudeBot Checker
Is ClaudeBot blocked on your site? Check robots.txt and a live request as ClaudeBot, Claude-SearchBot and Claude-User — and what each Anthropic bot does.
GPTBot Checker
Is GPTBot or OAI-SearchBot blocked? We read your robots.txt and request your homepage as each OpenAI bot, then show which to allow for ChatGPT search.
llms.txt Checker
What goes in an llms.txt file, where it lives and who reads it. Check your site's llms.txt for format errors and broken links, or copy a valid example.
llms.txt Generator
Free llms.txt generator. Create a valid llms.txt file that tells AI crawlers (ChatGPT, Perplexity, Claude) which of your pages matter most — then copy or download it.
AI Robots.txt Generator
Free robots.txt generator for AI crawlers. Choose exactly which AI bots — GPTBot, ClaudeBot, PerplexityBot, Google-Extended and more — can access your site.
Crawling & indexing
If Google can't crawl a URL, nothing else on the page matters. These tools fetch your pages the way crawlers do and show the exact rule, redirect or header that's in the way.
Bing URL Submission
Submit URLs to Bing instantly with IndexNow: generate a key, verify it, push up to 100 URLs per request. Yandex, Seznam, Naver and others get them too.
Googlebot Simulator
Free Googlebot tester: fetch a page as Googlebot Smartphone and compare it with a browser fetch — status, robots, noindex, canonical and readable text.
HTTP Header Checker
Free HTTP header checker: see every response header for a URL, with SEO-critical ones flagged — X-Robots-Tag, canonical Link, cache-control, HSTS.
HTTP Status Checker
Free HTTP status checker: paste up to 20 URLs and get each final status code, redirect hops and response time — plus what each code means for SEO.
Meta Robots Checker
Check a page's meta robots tag and X-Robots-Tag header together — noindex, nofollow, nosnippet, max-image-preview — and which one Google obeys.
Redirect Checker
Free redirect checker: paste a URL to see every hop, status code (301/302/307/308), timing and loops — and whether the chain hurts SEO. No signup.
Robots.txt Tester
Free robots.txt tester: test any URL for Googlebot, Bingbot, GPTBot, ClaudeBot and 13 more bots, and see exactly which rule decides (RFC 9309).
Sitemap Checker
Free sitemap checker: find a site's sitemaps, validate the XML, count URLs and test a sample for 200s, redirects and noindex. No signup.
Sitemap Examples
Copy-ready sitemap examples: urlset, sitemap index, image, video, news and hreflang sitemaps, each annotated — plus a 1-click check of any site's real sitemap.
View Page Source
View page source of any URL online: HTML with line numbers and search, minified pages formatted, plus title, meta, canonical and JSON-LD found by line.
XML Sitemap Generator
Free sitemap generator: we crawl your site like a search engine (up to 500 pages), skip noindex and redirects, and build valid XML to download.
On-page & content
On-page problems are the cheapest SEO fixes you'll ever make. These tools read a live page and tell you what to change in the title, description, headings and copy.
HTML Checker
Free online HTML checker: validate any URL with the W3C Nu engine and see the errors that matter for SEO first — head tags, nesting, duplicate IDs.
Keyword Density Checker
Free keyword density checker: enter a URL and analyse the text Google reads — top 1-, 2- and 3-word phrases, density and where your keyword appears.
Link Extractor
Free link extractor: get every link on a page — internal vs external, anchor text, nofollow, sponsored, ugc — as a table you can copy or export.
Meta Tag Checker
Free meta tag checker: see every tag that matters on a URL — title, description, robots, canonical, viewport, Open Graph, X cards — graded with fixes.
Meta Tag Generator
Write meta descriptions that fit: live pixel meter, Google preview and copy-ready title, description, Open Graph and X card tags. Free, no signup.
On-Page SEO Checker
Free on-page SEO checker: grade one URL on 25 checks — title, meta, headings, content, images, internal links, schema, indexability — each with a fix.
SEO Audit Checklist
An SEO audit checklist you can tick or run: 40 checks across crawling, indexing, on-page, speed, mobile, schema and HTTPS, auto-tested for free.
SEO Report Template
A real SEO report template, filled in from an actual audit: score, issues ranked by impact, evidence and fixes. Or generate your own free in about a minute.
Slug Generator
Free slug generator: turn any title into a clean, lowercase, hyphenated URL slug — strip stop words, accents and symbols — and check its length.
Title Tag Checker
Free title tag checker with real pixel width, not just characters: preview your title and meta description on desktop and mobile, then fix truncation.
Website Word Counter
Free website word counter: enter a URL and count the words in the main content (not menus or footers), plus headings, paragraphs and reading time.
SEO ROI Calculator
Free SEO ROI calculator. Estimate extra visits, conversions, revenue and monthly ROI from your SEO spend — with an honest zero-click discount for AI Overviews.
Schema & social previews
Structured data decides which rich results you can get; Open Graph and card tags decide what a shared link looks like. Both are invisible until something breaks — these tools make them visible.
Facebook Sharing Debugger
See what Facebook scrapes from your URL: we fetch it as facebookexternalhit, show the og: tags and image it uses, and explain how to force a re-scrape.
Favicon Checker
Free favicon checker: see every icon a page declares, test that each loads, and check Google's search-result favicon rules (48px multiple, crawlable).
Favicon Generator
Free favicon generator: favicon.ico, 16–512px PNGs and an Apple touch icon from an image, text or emoji — plus the HTML to paste. No signup.
Link Preview
Free link preview tool: see how a URL looks on Facebook, LinkedIn, X, Slack, Discord and iMessage — from the tags each platform actually reads.
OG Image Checker
What OG image size works? 1200×630 px. Check your og:image dimensions, file size, format and crop on Facebook, LinkedIn, X and Slack in one click.
OG Image Generator
Free OG image generator: type a title, pick a layout, download a 1200×630 PNG that stays readable when Facebook, LinkedIn, X and Slack crop it.
Open Graph Checker
Free Open Graph checker: validate og:title, og:description, og:image, og:url and og:type on any URL, catch broken tags and see the fix for each.
Rich Snippets Test
Free rich snippets test: see which Google rich results your page qualifies for — reviews, products, breadcrumbs, events — and what's missing.
Schema Validator
Free schema validator: parse every JSON-LD block on a URL and flag syntax errors and missing required properties per Google's structured data docs.
Twitter Card Validator
X retired its Card Validator. Paste a URL to preview your X card, see which tags X reads (twitter: vs og: fallbacks) and fix image errors.
AI Schema Generator
Free JSON-LD schema generator for AEO. Produce valid Organization, Product and FAQPage structured data so AI assistants can extract and recommend your brand accurately.
Speed, mobile & security
Speed, mobile layout and HTTPS hygiene are table stakes for ranking and for trust. These tests use real-user Chrome data where it exists and tell you which fix moves the number.
Core Web Vitals Test
Free Core Web Vitals test: real-user LCP, INP and CLS from Chrome field data plus a mobile Lighthouse run — and the three fixes that matter most.
HSTS Checker
What is HSTS and is yours right? Check any site's Strict-Transport-Security header, max-age, includeSubDomains and preload eligibility, with fixes.
Mobile-Friendly Test
Google retired its Mobile-Friendly Test in Dec 2023. Test any URL here: real mobile screenshot, viewport and font checks, and a clear pass or fail.
Security Headers Checker
Free security headers checker: scan a URL for HSTS, CSP, X-Frame-Options, X-Content-Type-Options and more, graded A–F with copy-paste fixes.
The biggest tool: your free AI audit
See whether ChatGPT recommends your brand when buyers ask.