About SII
The benchmark for measuring, ranking and validating social media influence with real-time data.
Why SII
Choose a pillar to see
how SII measures influence.
SII measures, standardizes and validates influence with evidence-based data, all on one common benchmark.
every week
Social listening data is scanned around the clock and scores update every hour, with no reliance on self-reported figures.
Explore the methodology
Ranking categories
7 rankings across 3 groups (Entertainment, Brands & Campaigns, and People & Communities), all built on the same SII index system.
- 01
Entertainment
Standout shows, films and characters
3 rankings
Entertainment
Standout shows, films and characters
3 rankings
- 02
Brands & Campaigns
Brands and marketing campaigns
2 rankings
Brands & Campaigns
Brands and marketing campaigns
2 rankings
- 03
People & Communities
Influencers and fan communities
2 rankings
People & Communities
Influencers and fan communities
2 rankings
Methodology
The SII index combines 5 measurement components, normalized to a 0–100 scale.
5 components → 1 index
0100
- SOURCE BREADTH
Source breadth
The number of independent sources (personal profiles, fan pages, groups, channels, news sites…) that post about the entity during the period; each source counts only once.
- VIRALITY
Virality
How far and how effectively content spreads: shares, reposts, quotes, duets, stitches and equivalent forms of redistribution.
- POST MENTIONS
Post volume
The number of posts and articles containing a valid keyword or hashtag after context filtering; comments are not counted.
- CONVERSATION
Comment volume
Total comments under valid posts, reflecting how much conversation surrounds the entity.
- SENTIMENT
Sentiment
The share of positive / neutral / negative posts, as classified by AI.
The SII index is aggregated and normalized from its component indices under an independent measurement methodology.
Organizers
A clear division of roles between the two operating partners.
- Data engine

Owns 100% of the core technology: crawling infrastructure, scoring algorithms, the data pipeline, NLP sentiment processing and the RESTful API.
- Media & editor
Owns editorial content, UI/UX design and layout, front-end development of the web platform, and Admin/CMS operations.
Partners
The organizations that help build, distribute and validate the SII ranking system.
- Media partnerPartner logo
Distributes rankings and analysis to a specialist audience in marketing and entertainment.
- Technology partnerPartner logo
Provides data processing infrastructure and audits the scoring algorithm every publishing cycle.
- Academic partnerPartner logo
Independently reviews the methodology, index weightings and data noise-filtering process.