Incidents reported on status page for Hook0 https://status.hook0.com/ https://d1lppblt9t2x15.cloudfront.net/logos/b45f1ba9a62cfbcc1ecee8a939a6f014.png https://status.hook0.com/ en https://status.hook0.com/incident/1035985 Tue, 01 Sep 2026 13:57:00 -0000 https://status.hook0.com/incident/1035985#ca0cf3b4e0884313cb4dee559d83e7f7bc89b164ea9b5e5e9a0e3718941cbf73 Our provider has published a post-mortem for this incident: https://www.clever.cloud/developers/postmortem/2026-08-27/ https://status.hook0.com/incident/1035985 Thu, 27 Aug 2026 16:29:00 -0000 https://status.hook0.com/incident/1035985#1a4b05948d9e1343ea9e5f636eb5287641ab40a42e556c4d2debd24b1b1db91b Everything has been stable for the last hours. We are closing the incident. https://status.hook0.com/incident/1035985 Thu, 27 Aug 2026 14:14:00 -0000 https://status.hook0.com/incident/1035985#62acc55b17ffc24486f03543361b5dc44a76809330fe646ead0a6dc90b3d865d Everything seems to operating correctly. We will continue monitoring the situation. https://status.hook0.com/incident/1035985 Thu, 27 Aug 2026 14:07:00 -0000 https://status.hook0.com/incident/1035985#34d284f56d5d8ab9f40501ac2244016ce3876ebb93df519ac218d78d355b9303 Services seem to be back online. We are monitoring the recovery. https://status.hook0.com/incident/1035985 Thu, 27 Aug 2026 13:56:00 -0000 https://status.hook0.com/incident/1035985#b7deb4189fbbdc5ac35742097053b428ae2d91664b8329640a5ff8d4ed1424b5 Our cloud provider is experiencing a service degradation (see https://www.clevercloudstatus.com/incidents/41b6e36e-ea51-4e88-b79b-ad1093c1d837). Hook0 API and webhook delivery are currently unavailable. We are monitoring the situation. https://status.hook0.com/incident/941325 Thu, 02 Jul 2026 10:50:00 -0000 https://status.hook0.com/incident/941325#aaefe3bb1f6ddffc1e53c0cd82c65f44cff87b46009183e9f603cac2870eb658 Everything has been working correctly since last update. System is back to its nominal state. We will continue monitoring until incident is officially closed upstream. https://status.hook0.com/incident/941325 Thu, 02 Jul 2026 10:16:00 -0000 https://status.hook0.com/incident/941325#6d59ac418c8d52eaec2edcd944d53c3a650af64ea8ab6ec9bbb5cef9698cf16b Issue seems fixed upstream. We are gradually re-enabling object storage in API and workers, while monitoring the situation. Webhook delivery is still stable. https://status.hook0.com/incident/941325 Thu, 02 Jul 2026 09:52:00 -0000 https://status.hook0.com/incident/941325#c3f022cffb49a0c9799d4cabbc38a913daf1a800407af4157f821d99308625c5 Fix was deployed on PG-based workers a few minutes ago: webhook delivery has recovered and queue is now empty. https://status.hook0.com/incident/941325 Thu, 02 Jul 2026 08:27:00 -0000 https://status.hook0.com/incident/941325#38d60a64b6824e5edc9d88466f8a567ff6e4a9db23ed46be5173bdde44ac4797 Our PG-based workers are having issues delivering webhooks. Issue was identified and a fix is being written. Pulsar-based workers are not affected. https://status.hook0.com/incident/941325 Thu, 02 Jul 2026 07:08:00 -0000 https://status.hook0.com/incident/941325#7321252d3a438e16e3a97a4024eacc0254295ca83e747d5a15c183bed2227569 Our provider acknowledged the issue: https://www.clevercloudstatus.com/incidents/1086 https://status.hook0.com/incident/941325 Thu, 02 Jul 2026 04:50:00 -0000 https://status.hook0.com/incident/941325#4c013e8029d029b7949953d00b72b8199193ec507e86092282892b9fab52f6f8 We temporarily disabled writing incoming events to object storage; they will be written to database instead. This should improve event ingestion. https://status.hook0.com/incident/941325 Thu, 02 Jul 2026 00:12:00 -0000 https://status.hook0.com/incident/941325#82fba48e5fb419fd2719c17f34056b88c50aa373d18dde48485b5b1278ff5040 We are seing transient issues with our object storage. Object storage is used to store incoming event payloads and responses to outgoing webhooks. Webhook delivery is still working, but in a degraded state. https://status.hook0.com/incident/853016 Thu, 19 Mar 2026 21:01:00 -0000 https://status.hook0.com/incident/853016#2aefb5b053fb51cefd0c09717559f069d118cfc3bde759e0e6ead8c914dba980 Our cloud provider identified and fixed the issue on their reverse proxy around 20:55 CET. It was been an hour without any issue, we are closing the incident. https://status.hook0.com/incident/853016 Thu, 19 Mar 2026 20:01:00 -0000 https://status.hook0.com/incident/853016#0f37cc197b607b551a98dfe777d720f9b30fbeead9c5beb8e98a7c76db151a20 We are seeing transient TLS issues between Cloudflare and our cloud provider, which cause some API calls to fail with HTTP 525. We are reaching out to our cloud provider's support and monitoring the situation. https://status.hook0.com/incident/853016 Thu, 19 Mar 2026 18:44:00 -0000 https://status.hook0.com/incident/853016#98ff3a05e93d7f3c0956fc5d60e656d721877083069f0e6c4917eede2c15b022 Everything has been stable for the last hour. We are closing the incident. https://status.hook0.com/incident/853016 Thu, 19 Mar 2026 17:52:00 -0000 https://status.hook0.com/incident/853016#fb9c6e29cbc87b2fe0ea30c77364a43d149214699fb445b3d24ba58dd566bc66 Services have been recovering for a few minutes. We are still monitoring the situation. https://status.hook0.com/incident/853016 Thu, 19 Mar 2026 16:03:00 -0000 https://status.hook0.com/incident/853016#0f74767840cfb07f80d7620a90af60638f6be7ef270eeb85afd9b1fe20d4cf7e Our cloud provider is experiencing a service degradation (see https://clevercloudstatus.com/incidents/1064). Hook0 API and webhook delivery may be unstable, especially for customers depending on a Pulsar-based worker. We are monitoring the situation. https://status.hook0.com/incident/775827 Fri, 28 Nov 2025 16:00:56 -0000 https://status.hook0.com/incident/775827#a039a87918640a101228ba4bc8e97ac622809eb020be4f5488e7e9d8f3a4937a Our database will be restarted after a short offline maintenance. API will be unavailable for a few minutes and might return HTTP 500 errors during this window. Wehbook delivery will be paused during this maintenance. We will do our best to keep API downtime to a minimum (it should be less than a few minutes). Webhook delivery will be progressively restored shortly after. https://status.hook0.com/incident/770898 Thu, 20 Nov 2025 16:08:00 -0000 https://status.hook0.com/incident/770898#b23c88fd7b1f379bd54ac4523e93604a126ecf7bc011fcca75335536c261d564 Everything has been stable for the last hours. We are closing the incident. https://status.hook0.com/incident/770898 Thu, 20 Nov 2025 12:56:00 -0000 https://status.hook0.com/incident/770898#a6af16abe254e1a21c2ec63025da2c5e33c94d6d7bb92841b383f71412222f0e Situation seems resolved: Apache Pulsar cluster is reachable by Hook0. We will continue monitoring the situation until incident is closed upstream. https://status.hook0.com/incident/770898 Thu, 20 Nov 2025 10:12:00 -0000 https://status.hook0.com/incident/770898#7ba3b61ebc67c13777289ef05cad64357b7946a43fa03b3e051264c4849485b9 Our Apache Pulsar provider is having availability issues. This only affects a few testing organizations. Production traffic is not impacted. See https://www.clevercloudstatus.com/incidents/1032 https://status.hook0.com/incident/768874 Tue, 18 Nov 2025 15:15:00 -0000 https://status.hook0.com/incident/768874#64a015a735760771cb6c93af1619b4de15d52cfe3231ad774c7a42c02bcb72c1 Everything seems OK. We are closing the incident. https://status.hook0.com/incident/768874 Tue, 18 Nov 2025 14:42:00 -0000 https://status.hook0.com/incident/768874#bce66ab7e3e9ad07aaa44498f9912e5c18b48a121b87080b4744b6c6eed9dfa2 Issue seems to be resolved on Cloudflare's side. Hook0 has recovered, we are still monitoring that everything stays stable. https://status.hook0.com/incident/768874 Tue, 18 Nov 2025 11:31:00 -0000 https://status.hook0.com/incident/768874#ef9bed972a4c336092464194a1fc9ef451c800a090cdfe5b405e0cd6fa3205bb We are currently affected by unscheduled downtime at Cloudflare. Our team is actively investigating this and monitoring their status updates. See https://www.cloudflarestatus.com/incidents/8gmgl950y3h7 https://status.hook0.com/incident/754120 Wed, 29 Oct 2025 16:15:00 -0000 https://status.hook0.com/incident/754120#6832efc91d22962f1cc43336b859a1e42f752979b9253c06e092dadaa453994f Incident is resolved. https://status.hook0.com/incident/754120 Wed, 29 Oct 2025 10:50:00 -0000 https://status.hook0.com/incident/754120#87cfc079e199de16bd3e08357452cf0110df8f470f4045f28d91b446c9b9d453 ### Summary We are seeing 100% database CPU usage. Analysis shows two causes: lots of malicious subscriptions have been created by a customer's user and a misconfiguration on our side has amplified the impact on our database. ### Impact - Significant slowdowns and timeouts in our API - Delay in processing webhooks ### Resolution A few improvements are made to reduce the impact of housekeeping operations to database's CPU. After disabling incriminated subscriptions, webhooks queue starts to reduce and system recovers. ### Next Steps - patch worker so that it ignores webhooks from disabled subscriptions - design and implement automatic deactivation of long-failing subscriptions https://status.hook0.com/incident/749486 Sat, 25 Oct 2025 14:15:00 -0000 https://status.hook0.com/incident/749486#c65a4599180f60a38768955825aad6ddc96aee28cba15bf62c8b4193340ef273 Main database will be updated. Our API and workers will be unavailable during a few minutes. https://status.hook0.com/incident/737948 Sun, 05 Oct 2025 22:00:15 -0000 https://status.hook0.com/incident/737948#56655c1e0034a0433caf2080138ebc21a90f02b84c25af3bde08cde051c12c4e Main database will be updated. Our API and workers will be unavailable during a few minutes. https://status.hook0.com/incident/407228 Thu, 01 Aug 2024 16:00:00 -0000 https://status.hook0.com/incident/407228#27dc7f31df04504321595214be9f29135ee00636e16fc26fb39bdcf646933b64 Main database will be updated so our API and workers will be unavailable during a few minutes. https://status.hook0.com/incident/393509 Thu, 04 Jul 2024 15:15:00 -0000 https://status.hook0.com/incident/393509#14141ed752e77373583ba50181c8214a8cd1a86f5bb18b75cbddc8eb5d520e61 Main database will be updated so our API and workers will be unavailable during a few minutes. https://status.hook0.com/incident/347621 Thu, 28 Mar 2024 23:15:00 -0000 https://status.hook0.com/incident/347621#b8c7e6324e7146836469b55c461c76385003da422e4ea1cffb66fc575d9d5361 Main database will be updated so our API and workers will be unavailable during a few minutes. https://status.hook0.com/incident/295107 Sat, 02 Dec 2023 15:54:49 -0000 https://status.hook0.com/incident/295107#65c0c8cc9b1ee8d7cc90ba293d5710bb60a0cfff910b146071e3badc0bcc6ec5 Maintenance completed https://status.hook0.com/incident/295107 Sat, 02 Dec 2023 15:45:00 -0000 https://status.hook0.com/incident/295107#e28357cb8c266a380a47440cbb77bde79e9cc9ce1ff702aca1c34b896a6e3700 Main database will be updated so our API and workers will be unavailable during a few minutes.