GitLab Git handshake disruption on 24 September 2026

GitLab Git handshake from Amsterdam, Mumbai, San Francisco, Singapore, Tokyo, Montreal: degraded checks; 2026-09-24 23:00 UTC to 2026-09-25 20:30 UTC: peak Git handshake 7.3 s vs a usual 0.26 s.

What our checks saw: Degraded
Cities affected: Amsterdam, Mumbai, San Francisco, Singapore, Tokyo, Montreal
When: 24 Sept, 23:00 UTC to 25 Sept, 20:30 UTC
How long: 21.5 hours
Slowest check: 7.30 s, usually 264 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.

Amsterdam

Each check (UTC)Usual (307 ms)Much slower, or failingIncident

Every check as a table

Time (UTC)	Check	Reading
20:00	375 ms	Normal
20:30	296 ms	Normal
21:00	317 ms	Normal
21:30	293 ms	Normal
22:00	333 ms	Normal
22:30	294 ms	Normal
23:00	–	Much slower, or failing
23:30	2.88 s	Much slower, or failing
00:00	295 ms	Normal
00:30	1.49 s	Much slower, or failing
01:00	388 ms	Normal
01:30	307 ms	Normal
02:00	303 ms	Normal
02:30	290 ms	Normal
03:00	1.39 s	Much slower, or failing
03:30	293 ms	Normal
04:00	307 ms	Normal
04:30	405 ms	Normal
05:00	298 ms	Normal
05:30	336 ms	Normal
06:00	320 ms	Normal
06:30	307 ms	Normal
07:00	300 ms	Normal
07:30	277 ms	Normal
08:00	347 ms	Normal
08:30	282 ms	Normal
09:00	341 ms	Normal
09:30	300 ms	Normal
10:00	289 ms	Normal
10:30	310 ms	Normal
11:00	321 ms	Normal
11:30	340 ms	Normal
12:00	297 ms	Normal
12:30	345 ms	Normal
13:00	312 ms	Normal
13:30	338 ms	Normal
14:00	422 ms	Normal
14:30	296 ms	Normal
15:00	318 ms	Normal
15:30	304 ms	Normal
16:00	333 ms	Normal
16:30	277 ms	Normal
17:00	297 ms	Normal
17:30	296 ms	Normal
18:00	357 ms	Normal
18:30	316 ms	Normal
19:00	352 ms	Normal
19:30	278 ms	Normal
20:00	290 ms	Normal
20:30	321 ms	Normal
21:00	287 ms	Normal
21:30	288 ms	Normal
22:00	271 ms	Normal
22:30	265 ms	Normal
23:00	292 ms	Normal
23:30	262 ms	Normal

San Francisco

Each check (UTC)Usual (268 ms)Slower than usualMuch slower, or failingSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
20:00	299 ms	Normal
20:30	257 ms	Normal
21:00	257 ms	Normal
21:30	376 ms	Normal
22:00	282 ms	Normal
22:30	273 ms	Normal
23:00	–	Much slower, or failing
23:30	7.30 s	Much slower, or failing
00:00	251 ms	Normal
00:30	998 ms	Much slower, or failing
01:00	233 ms	Normal
01:30	251 ms	Normal
02:00	215 ms	Normal
02:30	229 ms	Normal
03:00	496 ms	Normal
03:30	329 ms	Normal
04:00	445 ms	Normal
04:30	270 ms	Normal
05:00	294 ms	Normal
05:30	491 ms	Normal
06:00	431 ms	Normal
06:30	456 ms	Normal
07:00	462 ms	Normal
07:30	719 ms	Much slower, or failing
08:00	508 ms	Normal
08:30	554 ms	Slower than usual
09:00	381 ms	Normal
09:30	473 ms	Normal
10:00	434 ms	Normal
10:30	378 ms	Normal
11:00	350 ms	Normal
11:30	360 ms	Normal
12:00	475 ms	Normal
12:30	516 ms	Normal
13:00	364 ms	Normal
13:30	522 ms	Slower than usual
14:00	261 ms	Normal
14:30	256 ms	Normal
15:00	505 ms	Normal
15:30	327 ms	Normal
16:00	379 ms	Normal
16:30	336 ms	Normal
17:00	408 ms	Normal
17:30	265 ms	Normal
18:00	391 ms	Normal
18:30	328 ms	Normal
19:00	267 ms	Normal
19:30	321 ms	Normal
20:00	326 ms	Normal
20:30	315 ms	Normal
21:00	314 ms	Normal
21:30	229 ms	Normal
22:00	634 ms	Slower than usual
22:30	330 ms	Normal
23:00	240 ms	Normal
23:30	366 ms	Normal

Montreal

Each check (UTC)Usual (232 ms)Slower than usualMuch slower, or failingSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
20:00	313 ms	Normal
20:30	1.13 s	Much slower, or failing
21:00	193 ms	Normal
21:30	197 ms	Normal
22:00	354 ms	Normal
22:30	199 ms	Normal
23:00	–	Much slower, or failing
23:30	6.45 s	Much slower, or failing
00:00	239 ms	Normal
00:30	1.29 s	Much slower, or failing
01:00	242 ms	Normal
01:30	286 ms	Normal
02:00	1.86 s	Much slower, or failing
02:30	212 ms	Normal
03:00	220 ms	Normal
03:30	220 ms	Normal
04:00	493 ms	Slower than usual
04:30	626 ms	Much slower, or failing
05:00	1.06 s	Much slower, or failing
05:30	217 ms	Normal
06:00	299 ms	Normal
06:30	171 ms	Normal
07:00	199 ms	Normal
07:30	193 ms	Normal
08:00	213 ms	Normal
08:30	216 ms	Normal
09:00	198 ms	Normal
09:30	207 ms	Normal
10:00	225 ms	Normal
10:30	225 ms	Normal
11:00	207 ms	Normal
11:30	220 ms	Normal
12:00	237 ms	Normal
12:30	279 ms	Normal
13:00	217 ms	Normal
13:30	250 ms	Normal
14:00	275 ms	Normal
14:30	233 ms	Normal
15:00	214 ms	Normal
15:30	226 ms	Normal
16:00	240 ms	Normal
16:30	222 ms	Normal
17:00	233 ms	Normal
17:30	276 ms	Normal
18:00	238 ms	Normal
18:30	224 ms	Normal
19:00	230 ms	Normal
19:30	209 ms	Normal
20:00	227 ms	Normal
20:30	212 ms	Normal
21:00	304 ms	Normal
21:30	207 ms	Normal
22:00	235 ms	Normal
22:30	235 ms	Normal
23:00	203 ms	Normal
23:30	230 ms	Normal

Singapore

Each check (UTC)Usual (458 ms)Slower than usualMuch slower, or failingSlow check outside the incidentIncident

Every check as a table

Time (UTC)	Check	Reading
20:00	453 ms	Normal
20:30	419 ms	Normal
21:00	407 ms	Normal
21:30	446 ms	Normal
22:00	403 ms	Normal
22:30	438 ms	Normal
23:00	–	Much slower, or failing
23:30	1.78 s	Much slower, or failing
00:00	640 ms	Normal
00:30	685 ms	Normal
01:00	445 ms	Normal
01:30	779 ms	Slower than usual
02:00	461 ms	Normal
02:30	478 ms	Normal
03:00	703 ms	Normal
03:30	1.09 s	Slower than usual
04:00	630 ms	Normal
04:30	623 ms	Normal
05:00	752 ms	Slower than usual
05:30	489 ms	Normal
06:00	478 ms	Normal
06:30	791 ms	Slower than usual
07:00	420 ms	Normal
07:30	465 ms	Normal
08:00	453 ms	Normal
08:30	461 ms	Normal
09:00	522 ms	Normal
09:30	469 ms	Normal
10:00	450 ms	Normal
10:30	491 ms	Normal
11:00	409 ms	Normal
11:30	398 ms	Normal
12:00	440 ms	Normal
12:30	422 ms	Normal
13:00	438 ms	Normal
13:30	417 ms	Normal
14:00	451 ms	Normal
14:30	418 ms	Normal
15:00	444 ms	Normal
15:30	664 ms	Normal
16:00	416 ms	Normal
16:30	608 ms	Normal
17:00	434 ms	Normal
17:30	459 ms	Normal
18:00	456 ms	Normal
18:30	663 ms	Normal
19:00	431 ms	Normal
19:30	724 ms	Slower than usual
20:00	424 ms	Normal
20:30	429 ms	Normal
21:00	427 ms	Normal
21:30	403 ms	Normal
22:00	419 ms	Normal
22:30	427 ms	Normal
23:00	767 ms	Slower than usual
23:30	662 ms	Normal

Tokyo

Each check (UTC)Usual (353 ms)Much slower, or failingIncident

Every check as a table

Time (UTC)	Check	Reading
20:00	330 ms	Normal
20:30	337 ms	Normal
21:00	337 ms	Normal
21:30	427 ms	Normal
22:00	315 ms	Normal
22:30	324 ms	Normal
23:00	–	Much slower, or failing
23:30	3.94 s	Much slower, or failing
00:00	391 ms	Normal
00:30	382 ms	Normal
01:00	349 ms	Normal
01:30	388 ms	Normal
02:00	403 ms	Normal
02:30	368 ms	Normal
03:00	887 ms	Much slower, or failing
03:30	331 ms	Normal
04:00	326 ms	Normal
04:30	347 ms	Normal
05:00	439 ms	Normal
05:30	386 ms	Normal
06:00	460 ms	Normal
06:30	382 ms	Normal
07:00	318 ms	Normal
07:30	332 ms	Normal
08:00	316 ms	Normal
08:30	362 ms	Normal
09:00	359 ms	Normal
09:30	319 ms	Normal
10:00	344 ms	Normal
10:30	372 ms	Normal
11:00	397 ms	Normal
11:30	386 ms	Normal
12:00	364 ms	Normal
12:30	372 ms	Normal
13:00	406 ms	Normal
13:30	391 ms	Normal
14:00	407 ms	Normal
14:30	372 ms	Normal
15:00	318 ms	Normal
15:30	347 ms	Normal
16:00	339 ms	Normal
16:30	326 ms	Normal
17:00	328 ms	Normal
17:30	356 ms	Normal
18:00	315 ms	Normal
18:30	318 ms	Normal
19:00	316 ms	Normal
19:30	325 ms	Normal
20:00	314 ms	Normal
20:30	314 ms	Normal
21:00	312 ms	Normal
21:30	302 ms	Normal
22:00	332 ms	Normal
22:30	337 ms	Normal
23:00	315 ms	Normal
23:30	375 ms	Normal

Mumbai

Each check (UTC)Usual (452 ms)Slower than usualMuch slower, or failingIncident

Every check as a table

Time (UTC)	Check	Reading
20:00	414 ms	Normal
20:30	471 ms	Normal
21:00	430 ms	Normal
21:30	537 ms	Normal
22:00	417 ms	Normal
22:30	446 ms	Normal
23:00	–	Much slower, or failing
23:30	3.42 s	Much slower, or failing
00:00	930 ms	Slower than usual
00:30	1.10 s	Slower than usual
01:00	444 ms	Normal
01:30	460 ms	Normal
02:00	767 ms	Slower than usual
02:30	584 ms	Normal
03:00	1.04 s	Slower than usual
03:30	544 ms	Normal
04:00	530 ms	Normal
04:30	–	No check
05:00	751 ms	No check
05:30	848 ms	Slower than usual
06:00	569 ms	Normal
06:30	850 ms	Slower than usual
07:00	712 ms	Slower than usual
07:30	603 ms	Normal
08:00	794 ms	Slower than usual
08:30	846 ms	Slower than usual
09:00	843 ms	Slower than usual
09:30	1.01 s	Slower than usual
10:00	809 ms	Slower than usual
10:30	577 ms	Normal
11:00	774 ms	Slower than usual
11:30	774 ms	Slower than usual
12:00	528 ms	Normal
12:30	691 ms	Normal
13:00	816 ms	Slower than usual
13:30	749 ms	Slower than usual
14:00	1.04 s	Slower than usual
14:30	804 ms	Slower than usual
15:00	614 ms	Normal
15:30	791 ms	Slower than usual
16:00	694 ms	Normal
16:30	620 ms	Normal
17:00	741 ms	Slower than usual
17:30	788 ms	Slower than usual
18:00	852 ms	Slower than usual
18:30	751 ms	Slower than usual
19:00	772 ms	Slower than usual
19:30	593 ms	Normal
20:00	692 ms	Normal
20:30	525 ms	Normal
21:00	499 ms	Normal
21:30	584 ms	Normal
22:00	517 ms	Normal
22:30	520 ms	Normal
23:00	549 ms	Normal
23:30	526 ms	Normal

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