Mastodon Instance Validation All Features (/features)core Mastodon Instance Validation Verify instance URLs and connectivity before connecting accounts Statuz validates Mastodon instance URLs before attempting connection. Checks URL format, confirms Mastodon server presence, verifies API accessibility. How to Use • 1Click "Connect Mastodon account" • 2See instance URL input field • 3Type invalid URL: "notaserver" • 4See error: "Invalid URL format" • 5Type valid URL: "mastodon.social" • 6See "Validating..." indicator • 7Get checkmark: "Valid Mastodon instance" • 8See instance details: server name, version • 9"Continue" button enabled • 10Try unreachable instance • 11See error: "Instance unreachable" • 12Read helpful message about checking URL • 13Validation happens before OAuth flow Key Features • URL Format Check - Validates URL syntax • Instance Availability - Confirms server is reachable • Mastodon Verification - Ensures it's actually Mastodon • API Accessibility - Tests API endpoint access • Version Detection - Shows Mastodon version • Server Name Display - Confirms correct instance • Error Messages - Specific reasons for validation failures • Connection Prevention - Won't attempt OAuth with invalid instance • Real-Time Validation - Checks as you type (debounced) • Visual Indicators - Checkmarks for valid, X for invalid • Helpful Guidance - Suggests fixes for common errors • Custom Instance Support - Works with any Mastodon instance • Network Error Handling - Clear feedback for connectivity issues Why You'll Love It Typos in instance URLs lead to confusing OAuth errors. Validation catches problems immediately with clear guidance, saving time and frustration from failed connection attempts. Pro Tips • URL format matters - "https://mastodon.social (https://mastodon.social)" or just "mastodon.social" • Validation is instant - know immediately if URL is wrong • Checkmark means ready to proceed with connection • Error messages specific - tells you exactly what's wrong • Network errors different from invalid instances • Server unreachable might be temporary - try again • Popular instances validate quickly • Custom instances may take moment to validate • Version shown helps verify correct Mastodon instance • Don't proceed with red X - fix URL first Try Statuz today, it's free. Download for macOS (/download)