Third-party authority scores are a helpful comparative gauge, but they're independent metrics, not something search engines themselves calculate or use.
Use Them for Relative Comparison
Authority scores are most useful for comparing your site against competitors, not as an absolute target to chase.
Don't Chase the Number Directly
Tactics aimed purely at moving a third-party score, rather than earning genuine relevance and trust, tend to backfire.
Track Trend, Not Just Snapshot
A single score means less than the direction it's moved over the past several months relative to your competitors.
Next step: Use the Domain Authority Checker to track your relative authority trend against competitors over time.