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Network Latency

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This grid displays the network latency of pings between each monitoring location in the Dotcom-Monitor cloud network. With over two dozen monitoring locations throughout the world, the Dotcom-Monitor network serves as a standard baseline for detecting trends in backbone latency communication issues as well as regional outages and slowdowns.

  Madrid Beijing Sydney Copenhagen Seattle IPv6 San Franciso Mumbai Warsaw Paris Johannesburg Buenos Aires Shanghai Tokyo AWS US-East Washington DC Tel-Aviv Amsterdam Dallas Brisbane Denver Frankfurt Montreal Hong Kong Miami San Francisco London New York Minneapolis
Madrid 1 343 295 41 163 142 135 54 17 182
 
261 251 103 95 81 32 117 254 109 28 100 172 139 134 26 95 119
Beijing 343 1 224 195 195
 
 
242 241
 
425 25 118 218 211
 
220 197 350 201 174 244 46 218 164
 
212 211
Sydney 295 224 1 313 156 147 205 314 283 428 358 282 139 218 234 337 287 193 13 170 314 209 136 226 148 282 222 196
Copenhagen 41 190 313 1 170 166 189 25 22 165 244 253 209 93 97 81 14 134 268 139 18 97 186 120 158 25 91 126
Seattle 164 196 156 170 1
 
273 173 148 279 220 184 127 77 70 191 143 60 187 30 156 78 135 79 22 142 75 55
IPv6 San Franciso
 
 
 
 
 
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Mumbai 135 472 205 164 272
 
1 174 137 297 365 398 157 227 275 320 151 293 175 256 137 265 105 246 267 283 307 277
Warsaw 54 243 314 25 173
 
173 1 39 179 261 221 281 118 111 85 25 146 287 140 40 109 195 135 164 36 107 148
Paris 17 241 283 22 148
 
137 39 1 166 226 243 254 88 78 67 13 110 251 109 13 83 203 130 134 11 79 103
Johannesburg 186
 
429 165 277
 
298 179 166 1 384
 
379 231 232 204 151 256 427 259 165 223 389 244 278 143 226 254
Buenos Aires 243 425 354 243 234
 
365 261 226 384 1 373 310 144 161 280 236
 
377 189 239 177 347 170 204 228 160 176
Shanghai 261 25 265 260 185
 
 
221 243
 
371 1 58 222 227 302 325 219 349 212 284 219 49 226 149 334 214 187
Tokyo 251 118 139 208 126
 
157 281 254 379 310 58 1 165 166 284 262 137 124 113 244
 
53 174 102 231 162 156
AWS US-East 103 218 220 93 78
 
226 118 88 230 144 241 165 1 2 138 88 32 241 50 92 14 230 25 63 77 6 27
Washington DC 94 211 233 97 70 173 273 111 78 233 160 236 167 2 1 134 86 43 304 47 83 14 239 28 63 75 6 26
Tel-Aviv 81 239 337 81 191
 
320 85 67 204 279 293 283 138 134 1 73 180 352 166 64 142 241 167 185 67 135 153
Amsterdam 32 220 287 15 143 135 182 26 13 147 236 294 262 88 86 73 1 124 262 113 9 93
 
116 137 11 111 104
Dallas 117 194 184 134 61 126 322 147 111 256 173 220 136 32 43 173 117 1 202 22 112 45
 
32 37 106 40 31
Brisbane 255 350 22 268 187 171 175 287 251 422 378 341 123 242 304 352 262 199 1 195 286 238
 
227 172 282 239 216
Denver 109 189 170 139 31 25 263 140 109 259 189 212 113 49 47 166 113 22 192 1 121 46
 
51 25 118 45 35
Frankfurt 28 174 314 18 156 155 136 40 14 165 243 283 244 91 83 64 9 112 286 121 1 96
 
123 145 21 78 112
Montreal 100 262 209 97 78
 
269 109 83 227 177 219 180 13 15 140 93 45 238 46 96 1
 
42 70 78 9 35
Hong Kong 172 47 137 186 136
 
108 196 202 389 347 48 53 216 230 241 203 186 128 179 213 194 1 234 163 221 209 223
Miami 139
 
226 120 71 72 249 135 107 257
 
234 174 25 28 167 116 32 227 51 123 43
 
1 80 104 33 43
San Francisco 141 164 147 158 22 1 296 164 134 279 204 148 101 62 63 185 137 36 164 24 148 70
 
74 1 142 85 55
London 26
 
282 25 142 133 284 36 11 143 229 333 231 76 75 67 11 106 282 118 20 78
 
104 134 1 72 98
New York 96 213 220 91 80 62 370 107 79 243 160 217 162 6 6 135 96 38 237 45 78 9
 
33 63 72 1 30
Minneapolis 119 208 196 126 55 49 279 154 103 275 176 187 157 27 27 154 104 34 216 36 112 35
 
42 51 98 34 1

What is Network Latency?

Network latency is the delay in time it takes information (packets) to travel from one node or location to another. This grid reveals any locations that are consistently performing slower that the average locations. Each monitoring location is situated in a Tier 3 data center with multiple pipelines connected directly to the backbone internet providers in that geographic region. Dotcom-Monitor performs thousands of tests to websites, servers and other online systems around the world each minute, so we understand the importance of backbone latency as well as the broader network latency in between the many different nodes along the path of internet traffic.

Test Network Latency

There are several interesting observations when you begin to study the network latency grid. The first to stand out is the stream of 1s diagonally down the page - this is because there is never any lag between a host and itself. You can see a similar result on your local machine by opening a command line and typing: ping localhost. The result should be <1ms which means that it takes less than one millisecond to ping itself.

You may also notice gaps in the grid, particularly between the IPv6 only locations and the locations that are IPv4 only - if the node is unable to communicate using IPv6 or does not have an IPv6 address, then no results will be shown.

Feel free to bookmark this page to come back and perform a quick check of overall internet backbone health.

Great Firewall of China

You may notice that most of the network latency results to and from the Shanghai China monitoring location are orders of magnitude higher than the rest of the locations. This is due to the amount of filtering on internet traffic by the Chinese government. In fact, there are many public websites such as Google, YouTube and Facebook that are completely blocked by the Great Firewall of China. Another reason for higher latency is due to a poorer infrastructure in China than other Western countries.

Additional Network Tools

For additional analytics feel free to navigate to the free tools section of Dotcom-Monitor where you can perform custom ping, traceroute or website speed tests. If you're here troubleshooting network latency issues with a website or server that you manage, please sign up for a free trial for 30 days and gain complete access to the entire suite of Dotcom-Monitor tools to help troubleshoot issues with your network, website availability and much more.