keyword

when did the black death start

Monthly search volume and cost-per-click data for "when did the black death start" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=when+did+the+black+death+start&country=us" +--------------+------------------+ | volume | 9,900 | | cpc | $1.59 | | competition | 0 | | country | US | | updated | 2026-06-13 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
black death bubonic plague	60,500	$1.71	20/20
black plague	60,500	$1.16	20/20
bubonic plague black death	60,500	$1.16	20/20
black death	49,500	$0.75	20/20
the black death	22,200	$1.06	20/20
the black plague	22,200	$0.41	20/20
when was the black plague	14,800	$0.71	20/20
when did the black plague start	9,900	$1.59	20/20
when did the bubonic plague start	9,900	$1.59	20/20
what was the black death	8,100	$0.52	20/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=when+did+the+black+death+start&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt