Deterministic checker
One score. Four honest signals. Free on every draft.
Herald Check reads any English-language post, letter or outreach and returns a score across readability, inclusive language, structural completeness and pay-transparency coverage.
Grade-9 readability target
Bias, gendered and ableist language flags (English)
Structural completeness check
Pay-band and location disclosure
keryx / herald check
Score
0
Ready to publish
Readability88
Inclusive74
Structure92
Pay-transparency100
Deterministic, not a black box.
Herald Check runs the same rules every time — you can read them, tweak thresholds, and defend the score to a hiring manager or a lawyer.
Free, forever.
Herald Check is unmetered on every plan, including Free. Bring your own draft, get a score, ship the fixes.
English-language drafts.
Keryx writes and checks in English. You can hire across all 27 EU countries with it, but the bias and readability rules are tuned for English copy — drafts in other languages won't be scored reliably.