Section
Benchmarks
The same fixed cohort sent through every route we can reach, with the raw responses published.
Backlink counts across providers: same ranking, different numbers
Twenty vendor domains queried on Serpstat, SE Ranking and Moz on the same day. How far the referring-domain counts diverge, whether the providers at least agree on order, and why authority scores cannot be compared across tools.
Keyword volume coverage: which APIs report the long tail at all
Fifty US-English buyer keywords sent to DataForSEO, Serpstat, SE Ranking and Google Ads Keyword Planner in one call each. How many came back with a number, how the numbers compare with Google's own, and how each provider signals 'no data'.
SEO API latency, failures and what a real workload costs
Latency, failure and no-data rates, and observed cost for 314 calls across twelve SEO data routes on one day, with a worked monthly workload for an in-house growth agent.
Google SERP completeness: live fetch versus stored index
Fifty queries fetched through five Google results routes on the same day and compared with a live rendered Google page: how much of the real top 10 each route returns, whether the first result matches, what it costs and how long it takes.