# Substack

- Domain: substack.com · Category: martech
- Status page: https://substack.statuspage.io (polled every 10 minutes; now operational)
- Incidents archived: 222 (77 major/critical, 30 maintenances), history since 2020-01-27
- Last 90 days: 3 incidents; open now: 0
- Silently edited or deleted incidents: 0

## Incidents by year

| Year | Incidents | Major/critical | Maintenance | Median duration |
| --- | --- | --- | --- | --- |
| 2020 | 36 | 16 | 2 | 1.9 h |
| 2021 | 43 | 19 | 7 | 1.4 h |
| 2022 | 50 | 17 | 7 | 1.2 h |
| 2023 | 23 | 8 | 4 | 41 min |
| 2024 | 33 | 10 | 8 | 1.2 h |
| 2025 | 23 | 5 | 1 | 56 min |
| 2026 | 14 | 2 | 1 | 1.5 h |

## Recent notable changes

| When (UTC) | Change | Summary |
| --- | --- | --- |
| 2026-02-12 23:25 UTC | [Major incident: Substack Availability Issues](https://rewindex.com/change/ia661f3f26ddb1b.md) | pending |
| 2026-02-11 14:24 UTC | [Major incident: Substack Availability Issues](https://rewindex.com/change/i56fb04f3ca46b4.md) | pending |
| 2025-10-20 13:41 UTC | [Major incident: Post emails delayed](https://rewindex.com/change/i8f903847d4e3ac.md) | pending |
| 2025-04-29 18:15 UTC | [Major incident: Increased error rates](https://rewindex.com/change/i7b561c001c7c1d.md) | pending |
| 2025-03-24 23:41 UTC | [Major incident: Errors loading notes feed](https://rewindex.com/change/idcd6080fa61e4a.md) | pending |
| 2025-02-03 19:25 UTC | [Major incident: Substack home page and app home tab errors](https://rewindex.com/change/if3cc8bb2ed96d3.md) | pending |
| 2025-01-21 23:44 UTC | [Major incident: Increased latency and errors](https://rewindex.com/change/iae392425c33f8c.md) | pending |
| 2024-12-13 16:21 UTC | [Major incident: Elevated Error Rates](https://rewindex.com/change/i2d80689a8945b3.md) | pending |
| 2024-10-01 14:04 UTC | [Major incident: Posts not being delivered via email](https://rewindex.com/change/i87ad1893dcd2e3.md) | pending |
| 2024-08-23 17:36 UTC | [Critical incident: Substack increased latency and error rate](https://rewindex.com/change/icc891e0fd7c6c2.md) | pending |

Full timeline: [Substack changes](https://rewindex.com/company/substack/changes.md)
## Silent edits and deletions

_None._

## Page change history

| Page | URL | Versions | Last changed (UTC) | History |
| --- | --- | --- | --- | --- |
| Privacy policy | [https://substack.com/privacy](https://substack.com/privacy) | 1 | 2026-10-17 |  |
| Pricing | [https://substack.com/pricing](https://substack.com/pricing) | 0 |  |  |
| Trust / security | [https://security.substack.com/welcome](https://security.substack.com/welcome) | 1 | 2026-10-17 |  |

_No page changes since the first snapshot._

## Latest 100 incidents

| Started (UTC) | Incident | Impact | Duration | Edited |
| --- | --- | --- | --- | --- |
| 2026-10-09 22:37 UTC | [Elevated latencies](https://stspg.io/37r9s2v1fl35) | none | 55 min |  |
| 2026-08-30 15:17 UTC | [Delays in post delivery stats](https://stspg.io/w6w191lrnhl4) | none | 3.4 h |  |
| 2026-08-18 04:23 UTC | [Issues loading Notes](https://stspg.io/17ln137rb6mk) | minor | 32 min |  |
| 2026-07-16 10:06 UTC | [Issues loading media on Substack](https://stspg.io/658pdlwhkf7t) | minor | 5.9 h |  |
| 2026-06-03 13:58 UTC | [Delays in post delivery](https://stspg.io/8dhfs1z93cbk) | none | 52 min |  |
| 2026-04-22 19:12 UTC | [Service degraded due to a provider.](https://stspg.io/my9cq5gpxl1k) | none | 1.6 h |  |
| 2026-03-27 22:20 UTC | [Issue with reported open rates](https://stspg.io/gfd9nywqt1hf) | none | 45 d |  |
| 2026-02-27 00:41 UTC | [We're aware of an issue causing delays in publisher stats](https://stspg.io/rps5764rn5r8) | minor | 2.9 h |  |
| 2026-02-26 23:10 UTC | [Publisher Stats Loading](https://stspg.io/wgj8y8k3fxx5) | minor | 33 min |  |
| 2026-02-12 23:25 UTC | [Substack Availability Issues](https://stspg.io/9l51fkzdrjym) | major | 1.1 h |  |
| 2026-02-11 14:24 UTC | [Substack Availability Issues](https://stspg.io/0h222jptznp1) | major | 1.4 h |  |
| 2026-01-15 12:35 UTC | [Issues loading Notes](https://stspg.io/2fnmlb45bw62) | none | 15 min |  |
| 2026-01-14 17:38 UTC | [Elevated latencies](https://stspg.io/j8flm23c60ys) | none | 3.1 h |  |
| 2026-01-05 17:17 UTC | [Delays in audio read-aloud processing.](https://stspg.io/4v0tbtphfylz) | none | 12 h |  |
| 2025-12-22 23:31 UTC | [Substack is experiencing issues](https://stspg.io/3bspgztmfxcf) | minor | 42 min |  |
| 2025-11-18 14:39 UTC | [Substack is experiencing issues](https://stspg.io/grb13w847b0b) | minor | 38 min |  |
| 2025-11-05 16:52 UTC | [Push notifications delayed on iOS](https://stspg.io/xtb8676nc5cb) | none | 46 min |  |
| 2025-10-20 13:41 UTC | [Post emails delayed](https://stspg.io/bvpc229946p4) | major | 11 h |  |
| 2025-10-04 16:06 UTC | [Post notifications are delayed](https://stspg.io/hsq9cr151tcv) | minor | 4.4 h |  |
| 2025-09-20 14:42 UTC | [Post email delivery is delayed](https://stspg.io/k894wmr5b94n) | none | 1.7 h |  |
| 2025-09-15 15:24 UTC | [Substack experiencing increased latency](https://stspg.io/1cqm92rx91q9) | minor | 3.8 h |  |
| 2025-08-30 16:17 UTC | [Delay in sending scheduled posts](https://stspg.io/c33415y6kbds) | none | 15 min |  |
| 2025-08-26 14:06 UTC | [Livestream creation not working](https://stspg.io/dcvzys588rml) | none | 39 min |  |
| 2025-08-11 16:15 UTC | [Unable to sign in on the Android app](https://stspg.io/r670m9y67rpb) | none | 20 min |  |
| 2025-06-23 17:45 UTC | [Substack Availability Issue](https://stspg.io/ln8f04xtdxs8) | minor | 12 h |  |
| 2025-06-23 16:50 UTC | [Substack Availability Issues](https://stspg.io/jm5hwyblbhfc) | none | 32 min |  |
| 2025-05-24 14:47 UTC | [Substack is experiencing issues](https://stspg.io/t82bsq3ykyyr) | minor | 13 h |  |
| 2025-04-30 13:31 UTC | [Email analytics backup](https://stspg.io/wcdgvvgh9whc) | minor | 36 h |  |
| 2025-04-29 18:15 UTC | [Increased error rates](https://stspg.io/d33x8f6hwgym) | major | 1.0 h |  |
| 2025-03-24 23:41 UTC | [Errors loading notes feed](https://stspg.io/pdgbht148nvv) | major | 28 min |  |
| 2025-03-11 16:43 UTC | [Email delivery delays](https://stspg.io/2hmz7qc0gwtt) | minor | 52 min |  |
| 2025-03-01 15:38 UTC | [Issues loading Notes](https://stspg.io/v4s61kxst2v5) | none | 7.0 h |  |
| 2025-02-28 23:43 UTC | [Publisher Dashboard and Notifications are experiencing slowdowns](https://stspg.io/v7f3p1ykhfnf) | minor | 45 min |  |
| 2025-02-03 19:25 UTC | [Substack home page and app home tab errors](https://stspg.io/by4l7pw3j7vk) | major | 1.4 h |  |
| 2025-01-27 21:08 UTC | [Delays in stats](https://stspg.io/bfv0gx99k39h) | none | 56 min |  |
| 2025-01-21 23:44 UTC | [Increased latency and errors](https://stspg.io/szrlsbzgs2tp) | major | 53 min |  |
| 2025-01-10 15:13 UTC | [Degraded performance for search and publisher dashboard](https://stspg.io/yqwlgvqm21kx) | none | 2.8 h |  |
| 2024-12-19 13:13 UTC | [We are investigating an issue where stats are delayed across the platform.](https://stspg.io/g5fjfp2bfdwt) | none | 40 min |  |
| 2024-12-13 16:21 UTC | [Elevated Error Rates](https://stspg.io/91pb7l36ltyt) | major | 29 min |  |
| 2024-10-29 22:27 UTC | [Elevated Latency](https://stspg.io/80ph43m4cjkc) | none | 20 min |  |
| 2024-10-23 02:21 UTC | [Issue updating titles on drafts](https://stspg.io/w7czyptqdh2l) | none | 26 min |  |
| 2024-10-10 19:40 UTC | [Issue managing Stripe subscriptions](https://stspg.io/zvyjvkn77l8m) | minor | 34 min |  |
| 2024-10-04 13:40 UTC | [Posts incorrectly auto paywalled](https://stspg.io/q7cgg82dnj47) | minor | 9.4 h |  |
| 2024-10-01 14:04 UTC | [Posts not being delivered via email](https://stspg.io/cnllzzg4g4d1) | major | 1.0 h |  |
| 2024-09-18 21:19 UTC | [Mobile App Issues](https://stspg.io/ymzjn6wmqcbd) | none | 13 min |  |
| 2024-09-15 19:44 UTC | [Issue with setting up new custom domains](https://stspg.io/jw5pk5j3zc37) | minor | 1.9 h |  |
| 2024-08-23 17:36 UTC | [Substack increased latency and error rate](https://stspg.io/2z3dm3fs6x7d) | critical | 1.5 h |  |
| 2024-08-13 19:24 UTC | [Increased error rates](https://stspg.io/z9k07r203jth) | critical | 18 min |  |
| 2024-08-04 19:08 UTC | [Delayed push notifications due to OneSignal outage](https://stspg.io/yl1qm5nphyc2) | major | 1.4 h |  |
| 2024-07-30 22:55 UTC | [Delayed stats due to Amazon Web Services outage](https://stspg.io/ydgc24gf83d3) | minor | 8.2 h |  |
| 2024-07-25 18:30 UTC | [Dropping email open rates due to Apple iCloud Private Relay outage](https://substack.statuspage.io/incidents/3rxsbnw66lfr) | minor | 0 min |  |
| 2024-07-02 02:12 UTC | [Substack is aware of an issue affecting site availability.](https://substack.statuspage.io/incidents/6s391cz24qyy) | major | 18 min |  |
| 2024-06-18 16:16 UTC | [Increased latency](https://substack.statuspage.io/incidents/2qnv2btrldbc) | minor | 44 min |  |
| 2024-06-03 22:38 UTC | [Scheduled posts are not being sent](https://substack.statuspage.io/incidents/r9j70922434p) | none | 31 min |  |
| 2024-05-06 13:18 UTC | [Drafts not displaying on post dashboard](https://substack.statuspage.io/incidents/rv4yq7cq0rm9) | none | 25 min |  |
| 2024-05-05 15:12 UTC | [Drafts not displaying on post dashboard](https://substack.statuspage.io/incidents/rt6n31y9sdrk) | none | 56 min |  |
| 2024-04-26 16:40 UTC | [Subscriber data inconsistencies](https://substack.statuspage.io/incidents/wywvh79xn1c7) | none | 2.6 h |  |
| 2024-04-26 11:36 UTC | [Subscriber Count Issue](https://substack.statuspage.io/incidents/mpy4l271msbl) | none | 4.9 h |  |
| 2024-04-15 13:32 UTC | [We are investigating an issue where new drafts are not appearing on dashboards.](https://substack.statuspage.io/incidents/5ycq5nm02v6c) | none | 1.1 h |  |
| 2024-04-08 19:37 UTC | [Increased latencies and site availability issues](https://substack.statuspage.io/incidents/8yrtxgkhy0z0) | minor | 2.7 h |  |
| 2024-04-08 16:16 UTC | [Increased latencies](https://substack.statuspage.io/incidents/z67zbkm0y8m7) | minor | 6.0 h |  |
| 2024-04-06 12:45 UTC | [Delays in post stats](https://substack.statuspage.io/incidents/s20f4czvwyh3) | none | 3.1 h |  |
| 2024-03-15 19:42 UTC | [Substack site issues](https://substack.statuspage.io/incidents/vx0sr8mfz8r2) | major | 1.3 h |  |
| 2024-03-13 16:40 UTC | [Post stats delayed](https://substack.statuspage.io/incidents/y09c25ts5w9m) | minor | 6.2 h |  |
| 2024-03-12 16:25 UTC | [Substack availability issues](https://substack.statuspage.io/incidents/yhp9lmwyqzr4) | minor | 1.7 h |  |
| 2024-02-26 20:11 UTC | [Substack is experiencing issues](https://substack.statuspage.io/incidents/hqyhz0lpqjvj) | major | 11 min |  |
| 2024-02-20 01:30 UTC | [Experiencing issues](https://substack.statuspage.io/incidents/q5y5609z8mrj) | none | 1.1 h |  |
| 2024-02-17 21:15 UTC | [Increased latency and error rate](https://substack.statuspage.io/incidents/s81ffdr4jx3x) | major | 1.5 h |  |
| 2024-02-16 21:02 UTC | [Scheduled posts are delayed](https://substack.statuspage.io/incidents/lsq63yp3m463) | major | 1.3 h |  |
| 2024-02-12 19:00 UTC | [Elevated errors forwarding @substack.com emails](https://substack.statuspage.io/incidents/fbch2k0kv3xp) | minor | 7.5 h |  |
| 2023-11-03 16:35 UTC | [Delays in activating custom domains](https://substack.statuspage.io/incidents/20slg5htcblz) | none | 7.1 h |  |
| 2023-09-28 22:54 UTC | [Errors loading Notes feeds](https://substack.statuspage.io/incidents/x72bv23vv3b0) | minor | 34 min |  |
| 2023-09-20 20:29 UTC | [Homepage down for some visitors](https://substack.statuspage.io/incidents/xw6w9w755mj7) | minor | 27 min |  |
| 2023-08-24 17:54 UTC | [Issue loading some publisher dashboards](https://substack.statuspage.io/incidents/mk5l3jfqpgn7) | major | 23 min |  |
| 2023-08-09 06:53 UTC | [Substack Availability Issues](https://substack.statuspage.io/incidents/jl4dc7763761) | critical | 41 min |  |
| 2023-08-01 00:02 UTC | [Issue interacting with Substack pages](https://substack.statuspage.io/incidents/2rscbmn17sj9) | major | 15 min |  |
| 2023-07-25 16:56 UTC | [Slowdown affecting some users](https://substack.statuspage.io/incidents/jvxh9xrm2d57) | none | 20 min |  |
| 2023-07-24 19:13 UTC | [Publisher dashboard issues](https://substack.statuspage.io/incidents/cfm1v51tvzdq) | minor | 1.1 h |  |
| 2023-07-14 16:34 UTC | [Substack.com loading issue](https://substack.statuspage.io/incidents/rcztkt0grt2m) | none | 47 min |  |
| 2023-07-13 14:02 UTC | [Login Page Issues](https://substack.statuspage.io/incidents/sm9zf3mvxf0y) | none | 1.9 h |  |
| 2023-06-13 20:26 UTC | [Dashboard analytics delay](https://substack.statuspage.io/incidents/98ck2d7jhk14) | minor | 4.3 h |  |
| 2023-06-09 23:48 UTC | [Search is experiencing issues](https://substack.statuspage.io/incidents/17l270bc0rl0) | none | 51 min |  |
| 2023-05-31 15:28 UTC | [Loading is down for some substacks](https://substack.statuspage.io/incidents/vyng6fdg0fw9) | none | 22 min |  |
| 2023-04-28 20:28 UTC | [Some Users Are Not Seeing Notes Tab in iOS App](https://substack.statuspage.io/incidents/hwvm5ttmcrj2) | none | 36 min |  |
| 2023-04-18 17:06 UTC | [Issue with styling](https://substack.statuspage.io/incidents/fq5sg2pyww2k) | none | 9 min |  |
| 2023-04-13 15:00 UTC | [Substack Notes is experiencing issues](https://substack.statuspage.io/incidents/j0fjx3gdqfk5) | minor | 1.9 h |  |
| 2023-03-15 23:37 UTC | [Substack is experiencing an outage](https://substack.statuspage.io/incidents/g02ct9yx9qsl) | critical | 10 min |  |
| 2023-03-06 21:49 UTC | [iOS app experiencing login and refresh errors](https://substack.statuspage.io/incidents/bygqzmszr98t) | none | 40 min |  |
| 2023-02-27 21:08 UTC | [Substack Availability Issues](https://substack.statuspage.io/incidents/981ynm6yfv59) | critical | 48 min |  |
| 2023-02-21 18:07 UTC | [We're experiencing a delay in email delivery](https://substack.statuspage.io/incidents/07f6y95rwznt) | major | 4.0 h |  |
| 2023-01-27 12:31 UTC | [Issue with publishing posts](https://substack.statuspage.io/incidents/zslzx3xmlfcy) | none | 1.0 h |  |
| 2023-01-20 16:52 UTC | [Slow Response Times](https://substack.statuspage.io/incidents/0q363hbdsh2l) | major | 3.2 h |  |
| 2023-01-18 20:43 UTC | [Issues loading some post pages](https://substack.statuspage.io/incidents/1pz8l0b4y8cx) | major | 39 min |  |
| 2022-12-21 17:48 UTC | [Substack is currently unavailable](https://substack.statuspage.io/incidents/7n8ccbx858ys) | major | 3.4 h |  |
| 2022-12-20 01:45 UTC | [Editor issues](https://substack.statuspage.io/incidents/qg8cdvmb0vqj) | none | 35 min |  |
| 2022-12-14 15:15 UTC | [Delay in email open statistics](https://substack.statuspage.io/incidents/jy61pw954pgj) | none | 2 d |  |
| 2022-12-13 18:31 UTC | [Elevated error rate loading publications](https://substack.statuspage.io/incidents/0cjdrbqhmwg7) | none | 4 min |  |
| 2022-12-07 18:56 UTC | [Delay in email stats](https://substack.statuspage.io/incidents/gyqjylpm0jjg) | minor | 4.2 h |  |
| 2022-11-30 16:29 UTC | [Subscribe flow not loading for some free publications](https://substack.statuspage.io/incidents/v8xdrn3kgxgv) | major | 13 min |  |
| 2022-11-30 01:39 UTC | [Delayed statistics](https://substack.statuspage.io/incidents/mhy73grthnqf) | minor | 57 min |  |


## Charts

### Chart data: Substack status incidents per year
Grey: all non-maintenance incidents. Orange: major or critical. Years before Oct 2026 come from the vendor’s own status history.

| Year | Incidents | Major/critical |
| --- | --- | --- |
| 2020 | 36 | 16 |
| 2021 | 43 | 19 |
| 2022 | 50 | 17 |
| 2023 | 23 | 8 |
| 2024 | 33 | 10 |
| 2025 | 23 | 5 |
| 2026 | 14 | 2 |

### Chart data: Incidents per month, last 36 months
By impact as reported by the vendor. Maintenance excluded.

| Month | Impact | Incidents |
| --- | --- | --- |
| 2023-11 | none | 1 |
| 2024-02 | major | 3 |
| 2024-02 | minor | 1 |
| 2024-02 | none | 1 |
| 2024-03 | major | 1 |
| 2024-03 | minor | 2 |
| 2024-04 | minor | 2 |
| 2024-04 | none | 4 |
| 2024-05 | none | 2 |
| 2024-06 | minor | 1 |
| 2024-06 | none | 1 |
| 2024-07 | major | 1 |
| 2024-07 | minor | 2 |
| 2024-08 | critical | 2 |
| 2024-08 | major | 1 |
| 2024-09 | minor | 1 |
| 2024-09 | none | 1 |
| 2024-10 | major | 1 |
| 2024-10 | minor | 2 |
| 2024-10 | none | 2 |
| 2024-12 | major | 1 |
| 2024-12 | none | 1 |
| 2025-01 | major | 1 |
| 2025-01 | none | 2 |
| 2025-02 | major | 1 |
| 2025-02 | minor | 1 |
| 2025-03 | major | 1 |
| 2025-03 | minor | 1 |
| 2025-03 | none | 1 |
| 2025-04 | major | 1 |
| 2025-04 | minor | 1 |
| 2025-05 | minor | 1 |
| 2025-06 | minor | 1 |
| 2025-06 | none | 1 |
| 2025-08 | none | 3 |
| 2025-09 | minor | 1 |
| 2025-09 | none | 1 |
| 2025-10 | major | 1 |
| 2025-10 | minor | 1 |
| 2025-11 | minor | 1 |
| 2025-11 | none | 1 |
| 2025-12 | minor | 1 |
| 2026-01 | none | 3 |
| 2026-02 | major | 2 |
| 2026-02 | minor | 2 |
| 2026-03 | none | 1 |
| 2026-04 | none | 1 |
| 2026-06 | none | 1 |
| 2026-07 | minor | 1 |
| 2026-08 | minor | 1 |
| 2026-08 | none | 1 |
| 2026-10 | none | 1 |

### Chart data: Page snapshot history
One dot per archived version. Grey = first archived (baseline), orange = text changed.

| Date | Page | Change |
| --- | --- | --- |
| 2026-10-17 | Privacy policy | baseline |
| 2026-10-17 | Trust / security | baseline |

---
Canonical: https://rewindex.com/company/substack · Markdown: https://rewindex.com/company/substack.md · JSON: https://rewindex.com/api/v1/companies/substack · Generated 2026-10-17T23:48:58.355Z