who invented the mailbox

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
who invented the mailbox	1.76	0.3	937	64	24
who	1.24	1	9866	26	3
invented	0.14	0.9	4125	25	8
the	0.62	0.6	7566	18	3
mailbox	0.89	0.4	7965	56	7

Keyword	CPC	PCC	Volume	Score
who invented the mailbox	1.27	0.8	6396	86
who invented the mailbox black inventor	1.57	1	7721	34
who invented the mailbox african american	0.27	0.3	2941	33
who invented the protective mailbox	1.89	0.5	4254	88
philip b downing who invented the mailbox	0.43	0.5	8710	13
who invented the first mailbox	1.41	0.9	4288	66
when was the first mailbox	0.58	0.1	8798	23
exchange who created a mailbox	1.92	1	2595	52
who made protective mailbox	1.05	1	9637	41
black inventor of mailbox	0.99	0.2	4314	60
black man invented the mailbox	0.28	0.8	7812	22
who owns the mailbox	1.96	0.7	9673	28
information about the mailbox	1.74	1	2244	46
interesting facts about the mailbox	0.24	0.7	5351	26
when did philip downing invent the mailbox	1.02	0.6	9882	59
american mailboxes uk history	0.53	0.5	9057	56
first mailbox invented	0.59	0.9	7473	20
who made the mailbox	2	0.6	1444	47