LinkedIn Marketing IntelligenceThe metrics every LinkedIn marketer tracks — and what they actually reveal about buyer psychology.
Specialists read these numbers as diagnostic data: where authority is built, where it is lost, and what moves someone from observer to warm prospect.
Social Selling Index
LinkedIn’s composite sales-effectiveness score
SSI (0–100) covers brand, finding the right people, engaging with insights, and relationship depth. High SSI correlates with more opportunities and quota attainment.
Target: 70+ (leaders average 80+)
AuthorityPlatform health signal: organic amplification, search visibility, InMail acceptance.
Dwell time
The algorithm’s true north star
How long someone pauses before scrolling. Weighted above likes, comments, and shares. Thought leadership is a dwell-time mechanic.
Target: 15+ seconds on text; 30+ on articles
CognitiveThinking, not reacting — the precursor to trust and a business relationship.
Engagement rate
Resonance quality, not volume
Comments carry ~6× the weight of reactions. Above 3% usually means the idea landed — not just connection proximity.
Benchmark: 1–3% average; 5%+ authority-level
Social proofComments from recognised names validate the post before a new viewer reads a word.
Connection degree
Proximity trust
1st, 2nd, and 3rd+ each reduce perceived trust. Warm 2nd-degree outreach converts ~3× cold 3rd-degree InMail.
Optimal outreach: 2nd-degree with a mutual context
Proximity biasEach genuine relationship extends warm reach across their 1st-degree network.
LinkedIn Ads CPL
The premium of precision
Highest CPL in social — and often the highest-quality B2B leads. The question is never “is CPL high?” It always is. The question is LTV versus alternatives.
B2B average CPL: $75–$200 (justified when LTV exceeds $5K+)
Value framingA $150 VP lead is not comparable to a $15 Facebook lead. Category error.
Lead Gen Forms
Friction vs commitment
Pre-filled forms convert higher than landing pages — and often lower intent. Pair with qualification questions.
Form conversion: 10–15% vs 2–5% on external pages
FrictionSome friction is a filter. Zero friction floods the pipeline with convenience submissions.
Content pillars
Specialisation signal
3–4 interconnected topics so every encounter reinforces one expertise position. Narrow consistent signal beats broad inconsistency.
Optimal pillars: 3–4 topics around one core theme
Specialisation heuristicBrains categorise people by specialisation. Depth reads as trustworthiness.
InMail acceptance
Highest-permission cold outreach
Delivered in a professional context the prospect chose. Same message as email, different psychological reception.
Average acceptance: 57.5% vs 21.6% cold email opens
Context effectProfessional inbox vs defensive email inbox.
Employee advocacy
Reach multiplication most teams never use
20 employees × 500 connections ≈ 10,000 unique professionals per post when advocacy is systematic — at zero extra media cost.
Reach multiplier: ~10× company-page follower base
Peer trustIdentical content from a person is trusted more than from a company page.
Content type — average reach per post
Why some formats outperform others is psychology, not template choice.
- Thought leadership (insight + framework)~4,800
- Personal story with a professional lesson~4,100
- Specific how-to framework~3,700
- Counterintuitive take (with data)~3,400
- Industry news commentary~2,100
- Company news / product announcement~850
- Promotional / sales content~450
Expertise-dense posts earn dwell time. Dwell time earns distribution. Distribution accumulates authority — because LinkedIn optimised the algorithm to human attention.