Common Crawl graph releases are snapshots of captured web data. When a new release changes a domain’s Harmonic Centrality score or rank, the domain may have changed, the surrounding graph may have changed, or the crawl may represent different pages and links.
Record the release first
Save the release name, crawl period, score, rank, and whether the domain was present. Never compare two numbers without their release labels. The calculator displays release context with each result.
Separate graph change from site change
Review the domain’s own link structure and the graph’s coverage before drawing a conclusion. New nodes, removed nodes, redirected domains, and changes in crawlability can all affect shortest paths and rank ordering.
Use trends as evidence
Repeated movement across several releases can be a useful research signal, but a single jump is weak evidence. Pair graph history with server logs, major migrations, content changes, and observed AI-search retrieval. Harmonic Centrality is descriptive context, not a guaranteed traffic or ranking forecast.
Read what score and rank mean, then look up the latest imported release.