when did tanks enter ww1

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did tanks enter ww1	1.27	0.8	9154	87	24
when	0.31	0.9	5791	87	4
did	1.6	0.3	3254	63	3
tanks	1.55	0.1	8653	98	5
enter	1.03	0.8	825	34	5
ww1	0.83	0.4	580	85	3

Keyword	CPC	PCC	Volume	Score
when did tanks enter ww1	1.07	0.1	8077	85
when was tanks first used in ww1	1.9	0.1	6240	43
when were ww1 tanks first used	0.86	1	3549	8
when were tanks invented in ww1	1.68	0.5	7714	94
did tanks exist in ww1	1.26	0.5	6379	31
history of ww1 tanks	1.79	0.5	9883	47
tanks introduced in ww1	1.72	0.2	6236	33
how did tanks develop in ww1	1.54	0.6	7119	88
who introduced tanks in ww1	1.86	0.5	2517	88
when were tanks first used in wwi	1.08	0.8	1418	82
tanks during world war 1	1.65	0.9	2902	98