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GitHub Git handshake disruption on 5 October 2026

GitHub Git handshake from Amsterdam, Mumbai, Tokyo: degraded checks; 2026-10-05 19:30 UTC to 2026-10-05 21:30 UTC: peak Git handshake 0.88 s vs a usual 0.19 s.

What our checks saw
Degraded
Cities affected
Amsterdam, Mumbai, Tokyo
When
to
How long
2 hours
Slowest check
882 ms, usually 190 ms
GitHub's status page
Open it

Where our checks saw it

Each glowing city had slow or failing checks during the incident, shown at its worst. We test from 6 cities, so other places may have been hit too.

Our checks, city by city

Each point is one check every 30 minutes, from three hours before the incident to three hours after. Coloured points are the checks we counted as slower or failing. The shaded area shows how far above the usual time they were. Not affected: San Francisco, Montreal, Singapore.

Amsterdam

Incident0 ms1.00 s2.00 s16:3019:3022:30
Each check (UTC)Usual (190 ms)Much slower, or failingIncident
Every check as a table
Time (UTC)CheckReading
16:30196 msNormal
17:00196 msNormal
17:30198 msNormal
18:00209 msNormal
18:30190 msNormal
19:00200 msNormal
19:301.56 sMuch slower, or failing
20:00188 msNormal
20:30179 msNormal
21:00186 msNormal
21:30190 msNormal
22:00226 msNormal
22:30181 msNormal
23:00191 msNormal
23:30188 msNormal
00:00182 msNormal
00:30196 msNormal

Tokyo

Incident0 ms750 ms1.50 s16:3019:3022:30
Each check (UTC)Usual (188 ms)Much slower, or failingSlow check outside the incidentIncident
Every check as a table
Time (UTC)CheckReading
16:30217 msNormal
17:00200 msNormal
17:30226 msNormal
18:00217 msNormal
18:30213 msNormal
19:00182 msNormal
19:30969 msMuch slower, or failing
20:00183 msNormal
20:30199 msNormal
21:00180 msNormal
21:30218 msNormal
22:00227 msNormal
22:30196 msNormal
23:001.34 sMuch slower, or failing
23:30216 msNormal
00:00211 msNormal
00:30173 msNormal

Mumbai

Incident0 ms750 ms1.50 s16:3019:3022:30
Each check (UTC)Usual (275 ms)Much slower, or failingIncident
Every check as a table
Time (UTC)CheckReading
16:30287 msNormal
17:00303 msNormal
17:30262 msNormal
18:00281 msNormal
18:30277 msNormal
19:00260 msNormal
19:301.13 sMuch slower, or failing
20:00264 msNormal
20:30263 msNormal
21:00272 msNormal
21:30277 msNormal
22:00286 msNormal
22:30274 msNormal
23:00267 msNormal
23:30265 msNormal
00:00280 msNormal
00:30273 msNormal

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