Short answer
A healthy X account has a real photo and bio, a confirmed email and two-factor authentication, follow habits that stay inside X's rules (no bought followers, no follow churn, no automation), and posts that talk with people rather than at them. The checklist scores those 18 things with weights we chose.
Why these checks
Profile (7 points). People decide in a second whether to follow back or trust a reply. A real photo, a bio that says what you post about, and a pinned post do most of that work. Accounts with a default avatar and a name made of digits are the first ones people suspect of being automated.
Security (7 points). Two-factor authentication is the single strongest protection against takeover, so it carries the most weight here. Review your connected apps too: an old "who unfollowed me" app you authorised years ago may still have access.
Follows (11 points). The heaviest group, because these are the habits X's platform manipulation and spam policy addresses directly: buying followers or engagement, follow-unfollow cycles, and automated following. A tidy following list under the 5,000 mark also keeps you clear of X's account-specific ratio limit.
Posting (9 points). Steady posting, real replies and no copy-paste spam. Duplicate replies and identical posts across accounts are classic spam signals. "No recent warnings" is your best clue that the rest is in order.
If you're missing the follow checks
If you've used a follow-for-follow service or an auto-follow tool in the past, stop using it and revoke its access under your account's connected apps. Then use the target ratio planner to clean up gradually. Why the gradual part matters is in X's rules on following and unfollowing, and the patterns that make an account look automated are in bot-like ratio signals.
Questions
Is this X's own account score?
No. X doesn't publish an account score. The weights here are our judgement of what matters most, with security and rule-breaking follow habits weighted highest.
Where are my ticks stored?
In your browser's local storage, on this device only. We never see them. Clear all removes them.
Does a follower ratio affect account health?
Indirectly. A ratio by itself is just arithmetic, but a very low one combined with thousands of follows is one of the patterns people associate with follow-for-follow and spam accounts. The 'under 5,000 follows' and 'pruned recently' checks cover that.