Checkers, validators and calculators for everyday technical SEO work. Free to use, no sign-up.
Check and improve how AI assistants — ChatGPT, Claude, Perplexity, Gemini — crawl, cite, and present your site.
Essential validation and generation tools for optimizing your website's technical SEO foundation and search engine visibility.
Validate structured data markup for search engines
Create and validate robots.txt files for crawlers
Validate canonical tags and fix duplicate content
Create and validate XML sitemaps for SEO
Verify if pages are indexed by Google
Validate hreflang tags for multilingual SEO success
Generate JSON-LD structured data from a simple form
Audit all meta tags of any page in one check
Check status codes and redirect chains in bulk
Calculate key performance metrics including CTR, SEO ROI, and customer lifetime value to measure marketing success.
Improve your content's readability and search appearance with tools for text analysis and SERP preview.
Handy utilities for developers — format, inspect, and diagnose your web stack quickly.
Have a specific SEO challenge? I build tailored tools and workflows.