Free launch tools
Check one thing at a time before you share your app. Each tool explains what it found in plain words, with a prompt to paste into your builder.
Free launch check
All 15 checks at once: what’s ready, what’s missing and what to fix first.
Twitter card validator
See how your link looks when shared on X, and fix a missing or broken card.
Open Graph preview
Preview your link on WhatsApp, LinkedIn, Facebook and Slack before you share it.
Meta tag checker
Check your title, description, canonical, robots, viewport and language tags.
Favicon checker
See the icon your site shows in tabs and Google, and spot a missing or default one.
Sitemap validator
Find your sitemap, check that it’s valid and see which pages it lists.
AI visibility checker
See whether ChatGPT, Claude, Perplexity and Google are allowed to read your site.
SPF checker
Check that your domain tells inboxes which services may send email for it.
Every tool reads only what anyone can see on a public site. See how our checker works.