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GitLab Git handshake disruption on 21 October 2026

GitLab Git handshake from Singapore, Tokyo, Montreal: degraded checks; 2026-10-21 15:30 UTC to 2026-10-21 18:30 UTC: peak Git handshake 1.3 s vs a usual 0.34 s.

What our checks saw
Degraded
Cities affected
Singapore, Tokyo, Montreal
When
to
How long
3 hours
Slowest check
1.30 s, usually 344 ms
GitLab'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: Amsterdam, San Francisco, Mumbai.

Montreal

Incident0 ms400 ms800 ms12:3015:3018:3021:30
Each check (UTC)Usual (215 ms)Much slower, or failingSlow check outside the incidentIncident
Every check as a table
Time (UTC)CheckReading
12:30656 msMuch slower, or failing
13:00675 msMuch slower, or failing
13:30228 msNormal
14:00276 msNormal
14:30223 msNormal
15:00223 msNormal
15:30664 msMuch slower, or failing
16:00642 msMuch slower, or failing
16:30666 msMuch slower, or failing
17:00237 msNormal
17:30219 msNormal
18:00709 msMuch slower, or failing
18:30679 msMuch slower, or failing
19:00201 msNormal
19:30261 msNormal
20:00263 msNormal
20:30230 msNormal
21:00239 msNormal
21:30225 msNormal

Singapore

Incident0 ms500 ms1.00 s12:3015:3018:3021:30
Each check (UTC)Usual (419 ms)Slower than usualSlow check outside the incidentIncident
Every check as a table
Time (UTC)CheckReading
12:30436 msNormal
13:00486 msNormal
13:30480 msNormal
14:00562 msNormal
14:30708 msSlower than usual
15:00557 msNormal
15:30739 msSlower than usual
16:00690 msSlower than usual
16:30450 msNormal
17:00534 msNormal
17:30474 msNormal
18:00453 msNormal
18:30441 msNormal
19:00417 msNormal
19:30450 msNormal
20:00439 msNormal
20:30465 msNormal
21:00421 msNormal
21:30485 msNormal

Tokyo

Incident0 ms1.00 s2.00 s12:3015:3018:3021:30
Each check (UTC)Usual (344 ms)Much slower, or failingSlow check outside the incidentIncident
Every check as a table
Time (UTC)CheckReading
12:30490 msNormal
13:00394 msNormal
13:30396 msNormal
14:001.15 sMuch slower, or failing
14:301.05 sMuch slower, or failing
15:00924 msMuch slower, or failing
15:301.17 sMuch slower, or failing
16:001.05 sMuch slower, or failing
16:301.56 sMuch slower, or failing
17:00547 msNormal
17:30373 msNormal
18:00391 msNormal
18:30385 msNormal
19:00485 msNormal
19:30461 msNormal
20:00331 msNormal
20:30312 msNormal
21:00366 msNormal
21:30332 msNormal

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