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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
 
295 41 163 143 187 54 17 178 237 288 255 103 94 78 34 119 318 111 35 100 174 140 136 26 99 121
Beijing
 
1 309 178 203
 
 
253 265
 
356 26
 
 
224 269 183 219 360 188 258 320
 
265 179
 
235 216
Sydney 296 319 1 306 156 148 182 321 283 458 351
 
139 233 234 343 292 186 11 170 324 210 147 227 147 282 211 194
Copenhagen 41 178 306 1 169 165 166 25 22 172 239 288 190 94 97 77 18 134 320 139 20 95 186 118 160 25 95 128
Seattle 163 203 156 169 1
 
266 173 149 271 206 215 126 77 65 190 132 53 168 30 161 78 126 71 21 141 73 55
IPv6 San Franciso
 
 
 
 
 
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Mumbai 189
 
182 161 277
 
1 291 183 307 454
 
154 341 221 331 152 284 180 278 150 275 201 297 263 163 218 311
Warsaw 54 253 321 25 173
 
295 1 37 170 254 202 282 107 111 81 26 141 338 148 29 107 192 134 165 36 99 155
Paris 17 266 283 22 148
 
186 37 1 160 223 255 254 86 78 66 15 109 303 113 12 84 211 109 138 10 72 105
Johannesburg 178
 
458 172 269
 
302 170 160 1 366
 
413 226 228 213 147 283 463 285 158 216 387 243 304 143 214 252
Buenos Aires 237 357 351 239 207
 
457 254
 
366 1 386 310 155 151 285 224 166 370 180 234 158
 
151 205 223 150 169
Shanghai 281 26 188 288 243
 
 
210 251
 
382 1 111 457 244 269
 
196 327 161 281 220 37 235 154 300 237 209
Tokyo 255 179 139 190 127
 
146 281 254 413 310 118 1 164 167 317 267 135 124 112 288 180 54 174 101 286 172 146
AWS US-East 103 249 234 94 80
 
349 107 86 226 155 457 164 1 45 131 88 30 244 49 92 13 214 25 62 75 10 29
Washington DC 94 224 234 97 65 72 225 108 78 228 150 241 167 48 1 137 87 38 301 47 83 14 254 27 64 75 5 29
Tel-Aviv 78 264 343 77 188
 
330 81 66 216 284
 
316 131 137 1 73 164 362 165 63 133 239 167 194 66 124 158
Amsterdam 34 181 291 18 132 138 154 26 15 147 224 268 267 88 87 73 1 114 336 113 9 82 201 116 137 11 76 106
Dallas 119 218 186 134 53 43 284 141 109 283 167 194 134 29 38 163 114 1 206 21 117 45 185 29 36 111 39 31
Brisbane 318 342 12 320 169 221 182 338 303 463 370 327 124 244 297 363 336 197 1 181 307 232 128 233 164 286 235 209
Denver 111 188 170 139 30 24 282 148 113 285 179 162 112 51 50 164 113 21 181 1 132 41 178 47 27 119 40 33
Frankfurt 35 256 324 20 161 151 151 29 12 158 232 280 288 92 83 63 9 117 307 132 1 103 262 121 147 17 79 116
Montreal 100 293 210 95 78
 
290 107 84 216 158 220 180 13 14 133 82 45 232 41 103 1 185 39 77 78 8 35
Hong Kong 174 48 138 185 127
 
196 192 211 387 344
 
53 216 258
 
201 185 128 178 263
 
1 214 163 219 200 228
Miami 140 232 227 118 71 68 299 134 110 243 149
 
174 26 27 167 116 29 232 47 121 39 214 1 71 103 31 40
San Francisco 136 178 147 160 21 1 261 165 137 304 254 153 101 64 64 198 137 36 164 25 147 77 163 71 1 134 63 51
London 26
 
282 25 141 133 163 36 10 143 223
 
286 75 75 66 11 111 286 118 17 78 219 103 135 1 69 101
New York 99 235 211 95 73 64 219 99 72 214 149 241 172 6 5 124 76 39 235 40 79 9 203 32 65 74 1 39
Minneapolis 121 217 194 128 55 63 301 150 105 252 171 206 146 29 29 158 106 31 208 33 114 35 228 40 51 101 33 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.