200 OK
https://tutor.zanichelli.it/matematica/
Last check:
100%
1 month rolling uptime (since Sep 30)
last 24 hours
100% Uptime
0.99 Apdex (1.0)
1.0 1.0 1.0 1.0 1.0 1.0 .96 .96 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 .96 1.0
101ms Response time (incl. latency)
250ms
262
500ms
7
1s
6
2s
2
4s
1
8s
16s
16s+/err
218ms Total time: Name lookup + Connection + TLS handshake + Response time
Roubaix, France 38 ms20 ms24 ms40 ms124 ms
Frankfurt, Germany 27 ms22 ms27 ms109 ms185 ms
Helsinki, Finland 73 ms41 ms45 ms102 ms263 ms
last months
May: 100%
Apdex (1.0): 0.98
Jun: 100%
Apdex (1.0): 0.98
Jul: 100%
Apdex (1.0): 0.98
Aug: 100%
Apdex (1.0): 0.98
Sep: 100%
Apdex (1.0): 0.99
Oct: 100%
Apdex (1.0): 0.99
No data
No downtime
< 15m downtime
> 15m downtime

Response time (ms) → 0 250 500 Downtime → 2h 1h 40m ✓ 📅 October 31, 2026: Average: 104 ms ├ Helsinki: 61 ms ├ Roubaix: 41 ms └ Frankfurt: 210 ms 📅 October 30, 2026: Average: 88 ms ├ Helsinki: 112 ms ├ Roubaix: 36 ms └ Frankfurt: 118 ms 📅 October 29, 2026: Average: 113 ms ├ Helsinki: 105 ms └ Frankfurt: 122 ms 📅 October 28, 2026: Average: 131 ms ├ Helsinki: 155 ms └ Frankfurt: 108 ms 📅 October 27, 2026: Average: 118 ms ├ Helsinki: 134 ms └ Frankfurt: 102 ms 📅 October 26, 2026: Average: 110 ms ├ Helsinki: 146 ms └ Frankfurt: 74 ms 📅 October 25, 2026: Average: 101 ms ├ Helsinki: 121 ms └ Frankfurt: 82 ms 📅 October 24, 2026: Average: 110 ms ├ Helsinki: 113 ms └ Frankfurt: 108 ms 📅 October 23, 2026: Average: 89 ms ├ Helsinki: 83 ms ├ Roubaix: 74 ms └ Frankfurt: 110 ms 📅 October 22, 2026: Average: 124 ms ├ Helsinki: 99 ms ├ Roubaix: 165 ms └ Frankfurt: 108 ms 📅 October 21, 2026: Average: 98 ms ├ Helsinki: 114 ms ├ Roubaix: 122 ms └ Frankfurt: 58 ms 📅 October 20, 2026: Average: 82 ms ├ Helsinki: 99 ms ├ Roubaix: 67 ms └ Frankfurt: 80 ms 📅 October 19, 2026: Average: 111 ms ├ Helsinki: 99 ms ├ Roubaix: 118 ms └ Frankfurt: 117 ms 📅 October 18, 2026: Average: 102 ms ├ Helsinki: 121 ms ├ Roubaix: 89 ms └ Frankfurt: 97 ms 📅 October 17, 2026: Average: 72 ms ├ Helsinki: 98 ms ├ Roubaix: 57 ms └ Frankfurt: 61 ms Oct 2026 📅 October 16, 2026: Average: 131 ms ├ Helsinki: 142 ms ├ Roubaix: 118 ms └ Frankfurt: 133 ms 📅 October 15, 2026: Average: 102 ms ├ Helsinki: 126 ms ├ Roubaix: 124 ms └ Frankfurt: 57 ms 📅 October 14, 2026: Average: 104 ms ├ Helsinki: 127 ms ├ Roubaix: 117 ms └ Frankfurt: 70 ms 📅 October 13, 2026: Average: 94 ms ├ Helsinki: 101 ms ├ Roubaix: 85 ms └ Frankfurt: 96 ms 📅 October 12, 2026: Average: 132 ms ├ Helsinki: 144 ms ├ Roubaix: 108 ms └ Frankfurt: 144 ms 📅 October 11, 2026: Average: 89 ms ├ Helsinki: 150 ms ├ Roubaix: 44 ms └ Frankfurt: 73 ms 📅 October 10, 2026: Average: 89 ms ├ Helsinki: 106 ms ├ Roubaix: 60 ms └ Frankfurt: 101 ms 📅 October 09, 2026: Average: 88 ms ├ Helsinki: 121 ms ├ Roubaix: 48 ms └ Frankfurt: 96 ms 📅 October 08, 2026: Average: 111 ms ├ Helsinki: 157 ms ├ Roubaix: 109 ms └ Frankfurt: 67 ms 📅 October 07, 2026: Average: 93 ms ├ Helsinki: 92 ms ├ Roubaix: 67 ms └ Frankfurt: 121 ms 📅 October 06, 2026: Average: 117 ms ├ Helsinki: 156 ms ├ Roubaix: 61 ms └ Frankfurt: 136 ms 📅 October 05, 2026: Average: 106 ms ├ Helsinki: 122 ms ├ Roubaix: 79 ms └ Frankfurt: 118 ms 📅 October 04, 2026: Average: 87 ms ├ Helsinki: 107 ms ├ Roubaix: 99 ms └ Frankfurt: 56 ms 📅 October 03, 2026: Average: 87 ms ├ Helsinki: 102 ms ├ Roubaix: 71 ms └ Frankfurt: 88 ms 📅 October 02, 2026: Average: 108 ms ├ Helsinki: 121 ms ├ Roubaix: 76 ms └ Frankfurt: 127 ms 📅 October 01, 2026: Average: 86 ms ├ Helsinki: 123 ms ├ Roubaix: 54 ms └ Frankfurt: 82 ms 📅 September 30, 2026: Average: 123 ms ├ Helsinki: 193 ms ├ Roubaix: 85 ms └ Frankfurt: 93 ms 📅 September 29, 2026: Average: 109 ms ├ Helsinki: 166 ms ├ Roubaix: 79 ms └ Frankfurt: 82 ms 📅 September 28, 2026: Average: 102 ms ├ Helsinki: 97 ms ├ Roubaix: 102 ms └ Frankfurt: 107 ms 📅 September 27, 2026: Average: 83 ms ├ Helsinki: 106 ms ├ Roubaix: 49 ms └ Frankfurt: 94 ms 📅 September 26, 2026: Average: 84 ms ├ Helsinki: 90 ms ├ Roubaix: 103 ms └ Frankfurt: 61 ms 📅 September 25, 2026: Average: 94 ms ├ Helsinki: 99 ms ├ Roubaix: 81 ms └ Frankfurt: 104 ms 📅 September 24, 2026: Average: 96 ms ├ Helsinki: 121 ms ├ Roubaix: 62 ms └ Frankfurt: 106 ms 📅 September 23, 2026: Average: 92 ms ├ Helsinki: 96 ms ├ Roubaix: 78 ms └ Frankfurt: 102 ms 📅 September 22, 2026: Average: 98 ms ├ Helsinki: 96 ms ├ Roubaix: 78 ms └ Frankfurt: 120 ms 📅 September 21, 2026: Average: 83 ms ├ Helsinki: 104 ms ├ Roubaix: 70 ms └ Frankfurt: 77 ms 📅 September 20, 2026: Average: 89 ms ├ Helsinki: 69 ms ├ Roubaix: 83 ms └ Frankfurt: 117 ms 📅 September 19, 2026: Average: 96 ms ├ Helsinki: 84 ms ├ Roubaix: 134 ms └ Frankfurt: 71 ms 📅 September 18, 2026: Average: 95 ms ├ Helsinki: 69 ms ├ Roubaix: 78 ms └ Frankfurt: 139 ms 📅 September 17, 2026: Average: 97 ms ├ Helsinki: 99 ms ├ Roubaix: 71 ms └ Frankfurt: 121 ms Sep 2026 📅 September 16, 2026: Average: 108 ms ├ Helsinki: 97 ms ├ Roubaix: 147 ms └ Frankfurt: 82 ms 📅 September 15, 2026: Average: 101 ms ├ Helsinki: 92 ms ├ Roubaix: 100 ms └ Frankfurt: 111 ms 📅 September 14, 2026: Average: 97 ms ├ Helsinki: 84 ms ├ Roubaix: 63 ms └ Frankfurt: 144 ms 📅 September 13, 2026: Average: 82 ms ├ Helsinki: 97 ms ├ Roubaix: 65 ms └ Frankfurt: 84 ms 📅 September 12, 2026: Average: 98 ms ├ Helsinki: 117 ms ├ Roubaix: 99 ms └ Frankfurt: 79 ms 📅 September 11, 2026: Average: 148 ms ├ Helsinki: 101 ms ├ Roubaix: 129 ms └ Frankfurt: 215 ms 📅 September 10, 2026: Average: 98 ms ├ Helsinki: 91 ms ├ Roubaix: 81 ms └ Frankfurt: 122 ms 📅 September 09, 2026: Average: 119 ms ├ Helsinki: 156 ms ├ Roubaix: 97 ms └ Frankfurt: 104 ms 📅 September 08, 2026: Average: 150 ms ├ Helsinki: 131 ms ├ Roubaix: 112 ms └ Frankfurt: 207 ms 📅 September 07, 2026: Average: 116 ms ├ Helsinki: 183 ms ├ Roubaix: 86 ms └ Frankfurt: 80 ms 📅 September 06, 2026: Average: 105 ms ├ Helsinki: 133 ms ├ Roubaix: 81 ms └ Frankfurt: 101 ms 📅 September 05, 2026: Average: 102 ms ├ Helsinki: 111 ms ├ Roubaix: 113 ms └ Frankfurt: 83 ms 📅 September 04, 2026: Average: 115 ms ├ Helsinki: 163 ms ├ Roubaix: 59 ms └ Frankfurt: 124 ms 📅 September 03, 2026: Average: 132 ms ├ Helsinki: 206 ms ├ Roubaix: 93 ms └ Frankfurt: 99 ms 📅 September 02, 2026: Average: 92 ms ├ Helsinki: 103 ms ├ Roubaix: 116 ms └ Frankfurt: 58 ms 📅 September 01, 2026: Average: 176 ms ├ Helsinki: 228 ms ├ Roubaix: 129 ms └ Frankfurt: 171 ms 📅 August 31, 2026: Average: 219 ms ├ Helsinki: 169 ms ├ Roubaix: 196 ms └ Frankfurt: 292 ms 📅 August 30, 2026: Average: 227 ms ├ Helsinki: 343 ms ├ Roubaix: 126 ms └ Frankfurt: 213 ms 📅 August 29, 2026: Average: 266 ms ├ Helsinki: 223 ms ├ Roubaix: 382 ms └ Frankfurt: 195 ms 📅 August 28, 2026: Average: 288 ms ├ Helsinki: 265 ms ├ Roubaix: 232 ms └ Frankfurt: 369 ms 📅 August 27, 2026: Average: 240 ms ├ Helsinki: 201 ms ├ Roubaix: 281 ms └ Frankfurt: 239 ms 📅 August 26, 2026: Average: 210 ms ├ Helsinki: 217 ms ├ Roubaix: 231 ms └ Frankfurt: 183 ms 📅 August 25, 2026: Average: 219 ms ├ Helsinki: 113 ms ├ Roubaix: 288 ms └ Frankfurt: 256 ms 📅 August 24, 2026: Average: 239 ms ├ Helsinki: 173 ms ├ Roubaix: 225 ms └ Frankfurt: 321 ms 📅 August 23, 2026: Average: 250 ms ├ Helsinki: 308 ms ├ Roubaix: 232 ms └ Frankfurt: 211 ms 📅 August 22, 2026: Average: 284 ms ├ Helsinki: 396 ms ├ Roubaix: 278 ms └ Frankfurt: 180 ms 📅 August 21, 2026: Average: 208 ms ├ Helsinki: 232 ms ├ Roubaix: 223 ms └ Frankfurt: 171 ms 📅 August 20, 2026: Average: 175 ms ├ Helsinki: 153 ms ├ Roubaix: 252 ms └ Frankfurt: 120 ms 📅 August 19, 2026: Average: 309 ms ├ Helsinki: 319 ms ├ Roubaix: 265 ms └ Frankfurt: 344 ms 📅 August 18, 2026: Average: 193 ms ├ Helsinki: 166 ms ├ Roubaix: 183 ms └ Frankfurt: 230 ms 📅 August 17, 2026: Average: 212 ms ├ Helsinki: 175 ms ├ Roubaix: 218 ms └ Frankfurt: 243 ms Aug 2026 📅 August 16, 2026: Average: 248 ms ├ Helsinki: 232 ms ├ Roubaix: 315 ms └ Frankfurt: 198 ms 📅 August 15, 2026: Average: 322 ms ├ Helsinki: 368 ms ├ Roubaix: 222 ms └ Frankfurt: 377 ms 📅 August 14, 2026: Average: 247 ms ├ Helsinki: 202 ms ├ Roubaix: 302 ms └ Frankfurt: 237 ms 📅 August 13, 2026: Average: 210 ms ├ Helsinki: 211 ms ├ Roubaix: 182 ms └ Frankfurt: 239 ms 📅 August 12, 2026: Average: 215 ms ├ Helsinki: 254 ms ├ Roubaix: 194 ms └ Frankfurt: 199 ms 📅 August 11, 2026: Average: 194 ms ├ Helsinki: 187 ms ├ Roubaix: 197 ms └ Frankfurt: 200 ms 📅 August 10, 2026: Average: 220 ms ├ Helsinki: 108 ms ├ Roubaix: 360 ms └ Frankfurt: 194 ms 📅 August 09, 2026: Average: 224 ms ├ Helsinki: 239 ms ├ Roubaix: 303 ms └ Frankfurt: 131 ms 📅 August 08, 2026: Average: 193 ms ├ Helsinki: 197 ms ├ Roubaix: 209 ms └ Frankfurt: 173 ms 📅 August 07, 2026: Average: 228 ms ├ Helsinki: 254 ms ├ Roubaix: 258 ms └ Frankfurt: 172 ms 📅 August 06, 2026: Average: 201 ms ├ Helsinki: 183 ms ├ Roubaix: 185 ms └ Frankfurt: 235 ms 📅 August 05, 2026: Average: 176 ms ├ Helsinki: 213 ms ├ Roubaix: 160 ms └ Frankfurt: 156 ms 📅 August 04, 2026: Average: 186 ms ├ Helsinki: 218 ms ├ Roubaix: 125 ms └ Frankfurt: 215 ms 📅 August 03, 2026: Average: 259 ms ├ Helsinki: 206 ms ├ Roubaix: 289 ms └ Frankfurt: 283 ms 📅 August 02, 2026: Average: 206 ms ├ Helsinki: 156 ms ├ Roubaix: 156 ms └ Frankfurt: 306 ms 📅 August 01, 2026: Average: 156 ms ├ Helsinki: 125 ms ├ Roubaix: 179 ms └ Frankfurt: 164 ms 2026 📅 July 2026: Average: 235 ms ├ Helsinki: 253 ms ├ Roubaix: 214 ms └ Frankfurt: 240 ms 📅 June 2026: Average: 237 ms ├ Helsinki: 260 ms ├ Roubaix: 227 ms └ Frankfurt: 225 ms 📅 May 2026: Average: 218 ms ├ Helsinki: 220 ms ├ Roubaix: 210 ms └ Frankfurt: 226 ms Day → ← Month Helsinki Helsinki Roubaix Roubaix Frankfurt Frankfurt Average Average Downtime
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