when was the first mailbox

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the first mailbox	0.53	0.5	861	82	26
when	1.63	0.6	7238	37	4
was	1.49	0.8	4489	19	3
the	1.98	0.1	1890	88	3
first	1.66	0.6	286	6	5
mailbox	1.53	1	9301	48	7

Keyword	CPC	PCC	Volume	Score
when was the first mailbox	0.23	0.4	4274	48
when were mailboxes invented	0.91	0.8	7154	59
who invented the mailbox	0.74	0.5	5763	96
who created the mailbox	0.97	0.9	4413	74
the inventor of the mailbox	1.64	1	6612	24
who made the mailbox	1.52	0.5	9920	30
what does the first mailbox look like	1.98	0.9	2415	8
interesting facts about the mailbox	1.98	0.4	4782	29
information about the mailbox	1.59	0.9	9391	93
american mailboxes uk history	0.26	0.9	1403	29
vintage mailbox for sale	0.51	0.1	3820	7
who invented the protective mailbox	0.81	0.3	3391	50
old mailbox for sale	1.77	0.7	9987	68
first class mail box	0.61	0.3	9913	43
vintage usps mailbox for sale	0.19	0.1	2897	68
vintage mailboxes for sale online	1.74	0.6	3257	42
vintage mailboxes for sale on ebay	1.81	0.3	9457	28