Quick, no-signup tools for SEO professionals, marketers, and founders building their online presence.
Instantly check any domain's PageRank score and authority using the Open PageRank API. Free, no signup required.
Calculate the compounding return on investment for your link building campaigns over 12 months.
Test and score your outreach email subject lines for open rates. Get actionable feedback instantly.
Check if AI assistants like ChatGPT and Claude are likely to mention your product.
Estimate your page's PageRank score based on linking pages, damping factor, and link equity. Understand how Google values your backlinks.
Check if an email address is valid, formatted correctly, and safe to send to. Detect disposable providers instantly.
Paste your email copy and instantly find spam trigger words that hurt deliverability. 200+ words checked across 6 categories.
Audit any URL's title tags, meta descriptions, headings, images, and more. Get an instant SEO score with actionable fixes.
Check if any URL has noindex directives blocking it from search engine indexing. Checks meta tags, headers, and more.
Discover all XML sitemaps on any website. Checks robots.txt, common paths, and CMS-specific locations instantly.
Preview how any URL looks when shared on social media. Check og:title, og:description, og:image, and Twitter Cards.
Generate Open Graph and Twitter Card meta tags for your pages. Copy the code and paste it into your HTML head.
Create a properly formatted llms.txt file so AI models like ChatGPT and Claude can understand your website.
Validate your llms.txt file format and structure against the specification. Check for errors and missing fields.
Go beyond checking, start building
MentionAgent automatically finds link building opportunities and handles outreach for you.
Start Getting Mentioned For $99/mo