name-collision-02aug13-en

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Total a c d e f h i j k l m orange 406 74 34 8 7 15 13 36 81 45 3 90 red 76 6 10 10 1 4 10 5 3 15 10 3 msd 6 1 0 0 0 1 0 1 0 0 1 0 school 105 11 6 4 1 10 6 18 7 7 27 8 bank 16 2 2 1 0 2 1 2 1 2 2 1 Table 8— Number of distinct SLDs for top 35 proposed TLDs (2013) 4.2 The request stream at intermediate resolvers Table 9 shows the number of existing TLDs and proposed TLDs for the top 100 (by rank) that appear in data contributed by one of the large third-party DNS resolver companies to the 2012 DITL exercise, with the 2013 DITL rank for the root servers included for comparison: Resolver rank DITL2103 rank TLD Existing TLD Proposed TLD 1 1 com 28629149107 2 2 net 8201397628 3 5 arpa 7792280760 4 3 org 2523176121 5 11 br 346279329 6 12 info 333717314 7 26 in 321413018 8 6 ru 289883785 9 8 uk 203023315 10 121 nu 202489116 11 29 biz 178031064 12 45 ar 173704960 13 19 us 156768870 14 13 edu 149511754 15 7 cn 132455931 16 27 gov 118941627 17 25 ca 115405646 18 20 tv 111191830 19 35 co 108569516 20 9 de 107262308 21 18 tw 98743088 Name Collision Study Report Page 38 Version 1.5 2013.08.02
Resolver rank DITL2103 rank TLD Existing TLD Proposed TLD 22 10 jp 92096003 23 36 se 91781839 24 14 au 80612334 25 44 mx 75072649 26 237 xxx 74208200 27 32 ua 63309531 28 28 it 56627173 29 33 es 53502935 30 21 eu 52332440 31 74 tk 51940456 32 22 fr 51275719 33 107 mobi 49947557 34 31 cc 46634944 35 75 ir 46457563 36 15 pl 42155715 37 118 mail 35873064 38 56 cl 35873064 39 30 me 35340510 40 85 ae 30954250 41 17 nl 25374104 42 47 za 25193197 43 57 mil 24210183 44 40 vn 23330145 45 96 pe 22613984 46 23 kr 22332425 47 50 dk 21201641 48 39 ro 20828117 49 16 corp 17963126 50 43 ch 17963126 51 48 be 17311570 52 139 ly 16719465 53 4 home 15308666 54 55 hu 15308666 Name Collision Study Report Page 39 Version 1.5 2013.08.02
Page 1 and 2: Name Collision in the DNS A study o
Page 3 and 4: necessary to definitively establish
Page 5 and 6: Contents Executive Summary ........
Page 7 and 8: 9.4.3 Residual risk................
Page 9 and 10: 1 Introduction A name that is prope
Page 11 and 12: How widespread is the use of intern
Page 13 and 14: The root zone contains pointers dow
Page 15 and 16: indistinguishable, and few user int
Page 17 and 18: On 28 May 2013 ICANN announced 12 t
Page 19 and 20: Processing of the DITL data was car
Page 21 and 22: 4 Name collision potential The key
Page 23 and 24: Rank String Count (thousands) 24 re
Page 25 and 26: Rank TLD Existing TLD Proposed TLD
Page 27 and 28: Rank TLD Existing TLD Proposed TLD
Page 29 and 30: Rank 2012 2013 Change Proposed TLD
Page 31 and 32: Rank 2012 2013 Change Proposed TLD
Page 33 and 34: Rank String Count (thousands) Prefi
Page 35 and 36: For most of the proposed TLDs for w
Page 37: Total a c e f h i j k l m star 12 1
Page 41 and 42: Resolver rank DITL2103 rank TLD Exi
Page 43 and 44: 4.3.3 Weighting of resolver traffic
Page 45 and 46: 5 Name collision etiology The scope
Page 47 and 48: Proposed TLD usage all a-root c-roo
Page 49 and 50: Apparently the Google Chrome browse
Page 51 and 52: _sipinternaltls._tcp. _sipfederatio
Page 53 and 54: 6.1.1 Name lookup ambiguity Suppose
Page 55 and 56: 6.1.3 Non-query DNS traffic Althoug
Page 57 and 58: when local policy was to validate a
Page 59 and 60: signed, the relying party can confi
Page 61 and 62: significantly extend the range or s
Page 63 and 64: that the CA’s cert is distributed
Page 65 and 66: implications when certs are utilize
Page 67 and 68: credentials, perhaps as a prelude t
Page 69 and 70: Assuming that a comprehensive risk/
Page 71 and 72: Proposed TLD A AAAA MX PTR SRV TXT
Page 73 and 74: Proposed TLD A AAAA MX PTR SRV TXT
Page 75 and 76: Mozilla organization, and a survey
Page 77 and 78: 8 Name collision risk assessment Ri
Page 79 and 80: 8.3 Risk assessment framework The r
Page 81 and 82: For example, this report (and other
Page 83 and 84: The gradient plotted in Figure 4 is
Page 85 and 86: 9.1.1 Advantages A permanently rese
Page 87 and 88: 9.4 Look before you leap Verisign [
Page 89 and 90:
10 References [1] Invalid Top Level
Page 91 and 92:
Appendix A—Complete 2012 Counts T
Page 93 and 94:
Rank Proposed TLD As TLD As SLD At
Page 95 and 96:
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Page 99 and 100:
Page 101 and 102:
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Page 135 and 136:
25 169 sap 1,735 18,189 556 20,480
Page 137 and 138:
95 124 bom 251 64 348 663 96 50 ibm
Page 139 and 140:
165 115 moe 110 179 391 680 166 145
Page 141 and 142:
235 182 space 62 571 108 742 236 17
Page 143 and 144:
305 320 cool 44 21 55 120 306 436 i
Page 145 and 146:
375 404 lat 31 37 116 183 376 329 g
Page 147 and 148:
445 416 ping 22 46 704 772 446 377
Page 149 and 150:
515 619 ira 16 21 74 110 516 449 ri
Page 151 and 152:
585 594 financial 11 61 9 81 586 59
Page 153 and 154:
655 514 agency 8 58 154 220 656 450
Page 155 and 156:
725 714 chloe 6 3 5 14 726 894 reis
Page 157 and 158:
795 745 realty 4 21 90 115 796 803
Page 159 and 160:
865 923 banque 3 2 9 14 866 1015 fe
Page 161 and 162:
935 870 jmp 2 30 7 40 936 987 montb
Page 163 and 164:
1005 1025 tatar 1 10 5 16 1006 973
Page 165 and 166:
1075 1161 mutuelle 1 4 1 6 1076 976
Page 167 and 168:
1145 1169 lancome 0 2 5 7 1146 1186
Page 169 and 170:
1215 1256 xn--ngbc5azd 0 0 0 0 1216
Page 171 and 172:
1285 1267 kyknet 0 0 0 0 1286 1325
Page 173 and 174:
1355 n/a allfinanzberatung 0 0 0 0
Page 175 and 176:
Appendix C—Internal Name Certific
Page 177 and 178:
Proposed TLD 2013 2014 2015 2016 20
Page 179 and 180:
Proposed TLD 2013 2014 2015 2016 20
Page 181 and 182:
Appendix E—Top 25 by Root Server
Page 183 and 184:
Appendix G—SLD is an Existing TLD
Page 185 and 186:
Appendix I—TLD and SLD are both a
Page 187 and 188:
Appendix K—QNAME is www.ProposedT
Page 189 and 190:
Appendix M—LDAP and Kerberos name
Page 191 and 192:
Appendix O—_dns-sd DNS names (201
Page 193 and 194:
ice link google red mail smart worl
Page 195 and 196:
star mail ltd google sap app world
Page 197:
Appendix S—10-character SLD with
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