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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 N. Virginia Washington DC Tel-Aviv Amsterdam Dallas Brisbane Denver Frankfurt Montreal Hong Kong Miami San Francisco London New York Minneapolis
Madrid 1 240 321 41 163 143 131 53 17 178 243 268 245 96 94 75 32 125 255 111 32 105 202 131 136 26 90 120
Beijing 240 1 258 196 201
 
373 183 183
 
385 24
 
259 310 282
 
258
 
233
 
237 45 219 169
 
299 258
Sydney 321 258 1 311 156 152 197 319 283 428 354 179 139 215 229 336 303 183 18 175 299 220 210 228 147 277 220 195
Copenhagen 41 196 311 1 170
 
157 25 22 160 246 232 261 100 93 75 13 128 270 129 16 97 221 120 169 25 94 125
Seattle 163 201 156 170 1
 
 
160 149 269 220 178 141 76 64 191 141 50 187 27 159 71 127 71 20 142 74 55
IPv6 San Franciso
 
 
 
 
 
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
155
 
 
71
 
 
 
 
Mumbai 131 367 197 151 270
 
1 165 130 284 371 384 133 210 254 177 142 271 206 267 133 222 105 242 275 141 247 238
Warsaw 53 189 319 25 160
 
164 1 39 172 259 220 282 111 109 88 36 143 286 139 29 107 280 135 166 36 107 135
Paris 17 183 283 22 148
 
129 39 1 160 226 282 290 78 83 63 15 111 250 109 13 84 272 109 134 10 79 104
Johannesburg 178 381 428 160 268
 
284 172 160 1 384 345 420 219 234 200 147 251 420 257 161 216 396 244 278 143 220 250
Buenos Aires 243 385 354 246 223
 
376 259 226 381 1 377 303 156 160 273 234 175 365 188 242 184 360 155 203 230 161 175
Shanghai 261 24 179 231 178
 
384 220 246 346 377 1 88 320 241 295 312 274 378 255 315 238 35 287 218 262 259 209
Tokyo 245 139 139 261 141
 
132 282 290 420 302 92 1 164 180 328 258 145 111 112 251 191 162 175 102 243 157 179
N. Virginia 96 273 215 100 76
 
210 111 78 219 156 311 164 1 2 139 83 20 234 35 84 16 214 28 60 74 7 36
Washington DC 94 299 229 94 64 69 254 109 78 228 159 332 180 2 1 144 88 39 302 43 83 15 234 28 63 75 6 26
Tel-Aviv 75 281 336 75 191
 
184 89 63 200 273 295 328 137 144 1 69 174 350 166 66 142 240 175 191 65 146 151
Amsterdam 32 182 299 13 142 136 142 36 15 147 234 333 258 83 87 69 1 112 257 117 9 90 199 117 138 11 93 104
Dallas 125 282 183 128 49 58 270 143 111 252 173 291 144 34 39 174 112 1 203 20 118 47 181 29 37 109 40 31
Brisbane 255 333 12 270 187 163 210 286 250 421 365
 
111 235 298 350 257 203 1 185 258 238 128 227 163 259 237 214
Denver 111 231 175 129 27 25 270 139 109 257 188 268 112 35 44 166 117 20 185 1 121 44 161 51 25 119 40 34
Frankfurt 32 178 299 16 155 156 133 29 13 161 242 313 250 84 83 66 9 118 258 121 1 90 211 122 145 21 87 112
Montreal 105 237 220 97 75
 
229 107 84 216 177 253 191 16 15 142 90 46 238 44 90 1
 
39 83 78 9 35
Hong Kong 201 47 216 222 127
 
105 274 272 394 358 36 163 217 225 240 220 182 129 168 211 214 1 222 157 220 204 193
Miami 131
 
228 120 71 94 237 135 104 244 154
 
175 35 28 175 116 29 227 51 122 39 222 1 76 104 32 41
San Francisco 136 169 148 154 20 1 279 165 134 278 203 295 101 60 63 191 137 37 163 27 145 81 160 76 1 134 63 52
London 26 174 277 25 142 133 144 36 10 143 229 299 242 74 75 65 11 110 260 119 21 78 221 106 135 1 74 99
New York 90 298 220 94 74 64 247 107 79 221 159 250 157 7 6 146 93 40 237 40 87 9 201 32 63 74 1 31
Minneapolis 119 258 194 125 54 55 238 135 103 250 179 210 179 35 26 151 105 31 213 33 112 35 193 41 50 98 30 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.