Keyword match
How well your bullets and skills overlap with the JD's required terms. Lower if the JD has rare terms you do not have. Raise it by adding real proof, not by stuffing keywords.
Format
One-page or two-page legibility, font sanity, section ordering, contact line completeness. Format penalties are small but real.
Density
Whether bullets carry outcomes or read like task lists. Outcomes raise density. Filler lowers it.
Verb strength
Strong action verbs at the start of bullets. Weak openers like 'Responsible for' lower this axis.