Top Organic Search Keywords (External)

2011 Annual Summary

Analysis: Below are the top 50 organic search keywords or phrases entered on external search engines such as Google, Yahoo and Bing. The ranked data below represents the specific keywords used on those search engines which led them to a CDC.gov page.

For 2011, "CDC" and "herpes" were the top two search terms used by external search engines. Other popular search terms for 2011 included "hpv" and "chlamydia." 70% of the top 20 search terms were STD related keywords used by visitors on external search engines who then arrived on a CDC.gov page.

Rank	Keywords (External)	Searches
1	cdc	3,760,604
2	herpes	2,006,483
3	hpv	1,598,459
4	chlamydia	1,279,484
5	enfermedades de transmision sexualidad	652,605
6	sifilis	592,904
7	hand foot and mouth disease	579,448
8	gonorrhea	561,778
9	bmi	526,081
10	syphilis	516,995
11	gonorrea	486,631
12	std	476,345
13	enfermedades de transmision sexual	421,975
14	cdc.gov	418,899
15	herpes genital	415,324
16	center for disease control	412,757
17	bacterial vaginosis	396,604
18	clamidia	366,526
19	bmi calculator	349,728
20	genital herpes	315,625
21	stds	302,690
22	niosh	300,664
23	hpv in men	273,477
24	meningitis	264,769
25	pelvic inflammatory disease	242,614
26	trichomoniasis	227,418
27	sexually transmitted diseases	223,370
28	scabies	220,160
29	trichomonas	213,121
30	chlamydia symptoms	200,061
31	rsv	194,697
32	norovirus	185,366
33	immunization schedule	184,917
34	west nile virus symptoms	173,566
35	hpv in women	162,721
36	childhood obesity	158,257
37	hpv vaccine	154,067
38	enfermedades de transmisión sexual	150,318
39	chronic fatigue syndrome	145,825
40	growth chart	144,987
41	cdc travel	141,043
42	cdc zombie	140,132
43	flu shot side effects	139,942
44	tricomoniasis	139,782
45	body mass index	139,177
46	listeria	137,683
47	centers for disease control	136,436
48	salmonella	133,675
49	viral meningitis	132,694
50	bv	128,609