A growing set of fast, focused tools that run entirely in your browser — no signup, no uploads, no limits.
Start here — one URL, every on-page SEO check, scored in a single report.
Control what search engines and AI crawlers can reach and index.
Enter a URL or paste HTML to see if Google and AI crawlers can index the page.
Open tool →Create a production-ready robots.txt with templates and AI bot blocking.
Open tool →Simulate which paths Googlebot, GPTBot and others can crawl.
Open tool →Check robots.txt syntax and find common blocking mistakes.
Open tool →Turn a list of URLs into a valid sitemap.xml to copy or download.
Open tool →Generate an llms.txt file from your sitemap for AI crawlers.
Open tool →Generate and validate the markup that powers search and social previews.
Write meta tags with a live Google SERP preview and pixel-width warnings.
Open tool →Create OG and Twitter card tags with a live social-share preview.
Open tool →Build valid JSON-LD for Article, FAQ, Organization, Product and more.
Open tool →Validate JSON-LD syntax and required properties — privately, no API.
Open tool →Tighten on-page content, structure and readability before you publish.
Visualize your H1–H6 outline and catch skipped or duplicate headings.
Open tool →Gauge content depth and spot generic AI-writing patterns from a URL or text.
Open tool →See your top words and phrases by frequency and spot keyword stuffing.
Open tool →Word, character and sentence counts plus Flesch readability and grade level.
Open tool →Audit your link profile, domain authority and multi-region setup.