Methodology & sources

How each chart is built and where the numbers come from.

Companies ranked by size

Three metrics, each independently sourced and shown so the ranking is auditable:

Two-year size change

Revenue at FY-2 vs FY 0 (most recently reported). Public companies use 10-K comparatives. Private chains/franchisors use FDD year-over-year comparisons or self-reported figures. Companies without two reliable data points are excluded from this chart.

Local vs national keyword strength

Both numbers come from DataForSEO Labs dataforseo_labs/google/ranked_keywords/live with location_code = 2840 (United States):

For chains operating on a single national domain, this is a more useful signal than per-metro location_code queries, which return very sparse data because Google rankings rarely differ enough between metros to materialise as distinct DataForSEO datasets.

Backlink profile

From DataForSEO Backlinks API, backlinks/summary/live (totals) and backlinks/referring_domains/live (top-1000 referring domains, sorted by domain rank). Referring domains are bucketed by DataForSEO’s 0–1000 rank field:

The bucket thresholds are set to match the actual distribution of referring-domain rank in the wild, which is heavily concentrated below 300 even for strong sites.

12-month referring-domain growth

From DataForSEO backlinks/history/live, monthly snapshots. The chart shows net change in referring domains over the trailing 12 months. Companies with fewer than three months of history are excluded.

Caveats