Quick, no-signup tools for SEO professionals, marketers, and founders building their online presence.
Building something of your own? The authority lookups behind these tools are open endpoints. See the developer and agent resources.
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.
17 on-page answer engine optimization checks from a page's HTML, robots.txt and llms.txt. No model calls.
Check if an email address is valid, formatted correctly, and safe to send to. Detect disposable providers instantly.
Paste a cold email and get a 0 to 100 score from twelve checks calibrated on the reply rates of 8,531 real sends. No AI call.
Paste your email copy and instantly find spam trigger words that hurt deliverability. 200+ words checked across 6 categories.
Check if any URL has noindex directives blocking it from search engine indexing. Checks meta tags, headers, and more.
Enter any URL to see every link and whether it's dofollow, nofollow, sponsored, or ugc. Confirm your placements pass equity.
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.
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 On Autopilot