The following is a list of the browsers that hit the USConstitution.net from April 28, 2009 to May 7, 2009, with a cut-off of at least 20 hits per browser type in that period.

 #:  #reqs: #pages: browser
--: ------: ------: -------
 1: 239169: 239169: MSIE
 2:  93345:  93345: Mozilla
 3:  32439:  32439: Safari
 4:  15371:  15371: Netscape (compatible)
 5:  12085:  12085: Firefox
 6:   6429:   6429: Chrome
 7:   4499:   4499: msnbot
 8:   3253:   3253: Mediapartners-Google
 9:   2343:   2343: Opera
10:   2250:   2250: AISearchBot (Email: aisearchbot@gmail.com; If your web site doesn't want to be crawled, please send us a email.)
11:   1892:   1892: SD Crawler
12:   1362:   1362: Zend_Http_Client
13:   1182:   1182: Jakarta HTTP Client
14:    858:    858: Feedfetcher-Google; (+http:
15:    734:    734: GingerCrawler
16:    696:    696: Baiduspider+(+http:
17:    668:    668: WordPress
18:    594:    594: Java
19:    592:    592: iSiloX
20:    590:    590: Netscape
21:    506:    506: MSR-ISRCCrawler
22:    426:    426: msnbot-media
23:    394:    394: agentname
24:    389:    389: Yandex
25:    388:    388: BlackBerry8330
26:    348:    348: LinkWalker
27:    336:    336: Jakarta Commons-HttpClient
28:    263:    263: SiteGuardBot support@@siteguard.com
29:    256:    256: Speedy Spider (http:
30:    254:    254: Yanga WorldSearch Bot v1.1
31:    226:    226: DoCoMo
32:    220:    220: BlackBerry9530
33:    174:    174: ConveraCrawler
34:    172:    172: Sogou web spider
35:    170:    170: VB Project
36:    165:    165: larbin_2.6.3 larbin2.6.3@unspecified.mail
37:    151:    151: Willow Internet Crawler by Twotrees V2.1
38:    134:    134: W3C_Validator
39:    118:    118: gsa-crawler (Enterprise; M2-KX9KNZABUA6JS; jwade@tams.com,ppang@tams.com)
40:    117:    117: w3m
41:    112:    112: Hatena Antenna
42:    105:    105: Gigabot
43:    102:    102: BlackBerry8310
44:     88:     88: BlackBerry8320
45:     85:     85: BlackBerry8130
46:     83:     83: MLBot (www.metadatalabs.com
47:     82:     82: Sosospider+(+http:
48:     79:     79: Yeti
49:     78:     78: SAMSUNG-SGH-E250
50:     75:     75: Python-urllib
51:     72:     72: Microsoft Data Access Internet Publishing Provider Protocol Discovery
52:     69:     69: BlackBerry9000
53:     68:     68: BlackBerry8830
54:     63:     63: MDSIS NIO Transport
55:     60:     60: gsa-crawler (Enterprise; M2-N2AYGMEBUA2AA; cityeservices@rochestermn.gov)
56:     56:     56: http:
57:     54:     54: facebookexternalhit
58:     53:     53: AT&T
59:     42:     42: Snapbot
60:     42:     42: PHP
61:     41:     41: larbin_2.6.3 (larbin2.6.3@unspecified.mail)
62:     41:     41: libwww-perl
63:     40:     40: Wget
64:     39:     39: MivaDirect PHP
65:     38:     38: MSIE or
66:     36:     36: Opera VZW
67:     31:     31: ia_archiver-web.archive.org
68:     31:     31: PycURL
69:     28:     28: flatlandbot
70:     28:     28: librabot
71:     27:     27: BlackBerry8100
72:     27:     27: renlifangbot
73:     25:     25: MnoGoSearch
74:     25:     25: SiteGuardBot (support@@siteguard.com)
75:     25:     25: Microsoft Internet Explorer
76:     24:     24: LG-LX260 POLARIS-LX260
77:     23:     23: AideRSS
78:     23:     23: TailsweepBlogCrawler
79:     20:     20: Java1.3.1_01
  :   1189:   1189: [not listed: 287 browsers]

The following list compresses this down to just browsers:

 #:  #reqs: #pages: browser
--: ------: ------: -------
 1: 239169: 239169: MSIE
 2:  93345:  93345: Mozilla
 3:  32439:  32439: Safari
 4:  15371:  15371: Netscape (compatible)
 5:  12085:  12085: Firefox
 6:   6429:   6429: Chrome
 9:   2343:   2343: Opera
20:    590:    590: Netscape
25:    388:    388: BlackBerry8330
32:    220:    220: BlackBerry9530
43:    102:    102: BlackBerry8310
44:     88:     88: BlackBerry8320
45:     85:     85: BlackBerry8130
49:     78:     78: SAMSUNG-SGH-E250
52:     69:     69: BlackBerry9000
53:     68:     68: BlackBerry8830
71:     27:     27: BlackBerry8100
75:     25:     25: Microsoft Internet Explorer
76:     24:     24: LG-LX260 POLARIS-LX260