OneSignal

onesignal.com

OneSignal declares 8 subprocessors in its subprocessor list, which we last checked on Nov 11, 2026 (evidence). They include Cloudflare, Twilio and Intercom. No published changes since we first read it on Oct 3, 2026. 16 tracked vendors name OneSignal as a subprocessor, including Atlassian, Bitbucket and Jamf.

Subprocessors CSV of OneSignal's subprocessors · Atom feed of OneSignal's subprocessors DORA draft CSV of OneSignal's subprocessors as declared by OneSignal what's this? · 

8 third parties.

NamePurposeLocationListed since
Census Inc. Custom events integration and Data Lake ProviderUSA
Cloudflare Inc. Content delivery and internet securityUSA
Filestack Inc. Upload files into APIUSA
Google Inc. UPDATED Cloud hosting; OneSignal AI feature inference via Gemini Enterprise Agent Platform (GEAP); AI conversation quality review and logging via Google BigQuery (retained up to 90 days)Netherlands (europe-west4); USA
Intercom Inc. Customer support requestsUSA
Mailgun Inc. Email delivery providerUSA
Rollbar Inc. Product bug trackingUSA
Twilio Inc. SMS/MMS delivery providerUSA

Web TechnologiesCSV of OneSignal's web technologies · Atom feed of OneSignal's web technologies

OneSignal's homepage made 170 requests to 42 domains, 23 services controlled by another company, and 4 domains not identified.

Analytics (8): Adobe, LinkedIn, Meta, UserGems, G2.com, Leadfeeder, Quora, RB2BAdvertising (5): Google Cloud, Microsoft, OpenAI, Podscribe, Reddit, Inc.CDN (2): UNPKG, jsDelivrLive chat (1): reviewed: IntercomOther (7): Geolocation: ipdata; Issue trackers: Sentry; JavaScript libraries: Cloudflare; Security: ClickCease™; reviewed as Surveys: Maze; Video players: Wistia; Widgets: Navattic

23 third parties by category: Analytics 8Advertising 5CDN 2Live chat 1Other 7

Third parties 23 · 122 requests
Wistia Wistia 11% of the page's requests 19
Google Cloud DoubleClick Floodlight Google Analytics Google Tag Manager 10% of the page's requests 17
Intercomsubprocessor intercomcdn.com, intercom.io 9% of the page's requests 15
Adobe Adobe Marketo Measure Marketo 5% of the page's requests 9
Microsoft Microsoft Advertising 5% of the page's requests 9
UNPKG LottieFiles Unpkg 5% of the page's requests 8
Cloudflaresubprocessor Highlight.js Popper 1.14.7 cdnjs jQuery 3.6.0 4% of the page's requests 7
jsDelivr Bootstrap 4.6.2 jsDelivr 2% of the page's requests 4
LinkedIn Linkedin Insight Tag 2% of the page's requests 3
Maze maze.co 2% of the page's requests 3
Meta Facebook Pixel 2.9.433 2% of the page's requests 3
Navattic Navattic 2% of the page's requests 3
OpenAI ChatGPT Ads Measurement Pixel 2% of the page's requests 3
Podscribe Podscribe 2% of the page's requests 3
Reddit, Inc. Reddit Ads 2% of the page's requests 3
UserGems UserGems 2% of the page's requests 3
G2.com G2 Track Your Prospects 1% of the page's requests 2
Leadfeeder Leadfeeder 1% of the page's requests 2
Quora Quora Pixel 1% of the page's requests 2
ClickCease™ ClickCease <1% of the page's requests 1
RB2B RB2B <1% of the page's requests 1
Sentry Sentry 9.6.1 <1% of the page's requests 1
ipdata ipdata <1% of the page's requests 1
Unknown 4 · 8 requests

smart-company365.compocustrack.comusbrowserspeed.comug-webapp-public-production.s3.amazonaws.com

First party 1 · 40 requests
OneSignal Cloudflare Cloudflare Rocket Loader Craft CMS Google Cloud Google Cloud CDN Google Font API HSTS HTTP/3 HockeyStack Intercom Microsoft Clarity OneSignal Open Graph PHP PWA PostHog Priority Hints SEOmatic Swiper Yii core-js 3.47.0 24% of the page's requests 40

16 tracked companies loaded by the homepage are not in OneSignal's subprocessor list. A website can use a service without it processing customer data.

Subprocessor of (16)CSV of the companies listing OneSignal · Atom feed of the companies listing OneSignal

16 companies
  • Archie archieapp.co Mobile Push notifications
  • Atlassian atlassian.com Communications technology provider for mobile product notifications and video sharing
  • Bitbucket bitbucket.org Communications technology provider for mobile product notifications and video sharing
  • Capacity capacity.com Delivers mobile and web push notifications to end users for engagement and alerting within Capacity.; Push notification delivery
  • Hibob hibob.com
  • InMotion Hosting inmotionhosting.com Send web push notifications
  • Jamf jamf.com Push notifications
  • Keka keka.com Push notification service used to deliver mobile notifications to users.
  • OfficeRnD officernd.com Mobile Push notifications
  • Otter Meeting Agent otter.ai Customer engagement and push notifications.
  • Paved paved.com Push Notifications
  • Sibme sibme.com Push Notification Services
  • SmartTask smarttask.io Web push notifications
  • Statuspage statuspage.io Communications technology provider for mobile product notifications and video sharing
  • Superchat superchat.com
  • Trengo trengo.com Mobile Push Notification Service

Service statusCSV of OneSignal's status page incidents · Atom feed of OneSignal's status page incidents

Aug 14: no incident reportedAug 15: no incident reportedAug 16: no incident reportedAug 17: no incident reportedAug 18: no incident reportedAug 19: no incident reportedAug 20: no incident reportedAug 21: no incident reportedAug 22: no incident reportedAug 23: no incident reportedAug 24: no incident reportedAug 25: no incident reportedAug 26: no incident reportedAug 27: no incident reportedAug 28: no incident reportedAug 29: no incident reportedAug 30: no incident reportedAug 31: no incident reportedSep 1: no incident reportedSep 2: no incident reportedSep 3: no incident reportedSep 4: no incident reportedSep 5: no incident reportedSep 6: no incident reportedSep 7: no incident reportedSep 8: no incident reportedSep 9: no incident reportedSep 10: no incident reportedSep 11: no incident reportedSep 12: no incident reportedSep 13: no incident reportedSep 14: no incident reportedSep 15: no incident reportedSep 16: no incident reportedSep 17: no incident reportedSep 18: 1 incident (1 major)Sep 19: no incident reportedSep 20: no incident reportedSep 21: no incident reportedSep 22: 1 incident (1 major)Sep 23: no incident reportedSep 24: no incident reportedSep 25: no incident reportedSep 26: no incident reportedSep 27: no incident reportedSep 28: no incident reportedSep 29: no incident reportedSep 30: 1 incident (1 minor)Oct 1: no incident reportedOct 2: no incident reportedOct 3: no incident reportedOct 4: no incident reportedOct 5: no incident reportedOct 6: no incident reportedOct 7: no incident reportedOct 8: no incident reportedOct 9: no incident reportedOct 10: no incident reportedOct 11: no incident reportedOct 12: no incident reportedOct 13: no incident reportedOct 14: no incident reportedOct 15: no incident reportedOct 16: no incident reportedOct 17: no incident reportedOct 18: no incident reportedOct 19: no incident reportedOct 20: 1 incident (1 minor)Oct 21: no incident reportedOct 22: no incident reportedOct 23: no incident reportedOct 24: no incident reportedOct 25: no incident reportedOct 26: no incident reportedOct 27: no incident reportedOct 28: no incident reportedOct 29: no incident reportedOct 30: no incident reportedOct 31: no incident reportedNov 1: no incident reportedNov 2: no incident reportedNov 3: no incident reportedNov 4: no incident reportedNov 5: no incident reportedNov 6: no incident reportedNov 7: no incident reportedNov 8: no incident reportedNov 9: 1 incident (1 minor)Nov 10: no incident reportedNov 11: no incident reported

90 days agotoday

  • 5 incidents in 90 days
  • 2 major or critical
  • 4 min typical time to resolve
  • 34 min longest major
BeganIncidentImpactLasted
OneSignal AI Chat Service Interruptionminor4 min
Intermittent incomplete data in the dashboard and API reads for a subset of apps (starting with app id with 0)minor—
Database incident - impacting app IDs starting with eminor—
Subscription API - Creation Failuresmajor2 min
Intermittent errors on /api/v1/notifications apimajor34 min
Apple push notifications failing in about 3% of casesmajor2 h 4 min
Message events on user and subscription profiles slow and timing outminor40 min
Issue has been identifiedno impact stated1 min

Incidents per month

0 4 8 Mar 2026: 1 incident (1 major) · partial: our history begins Mar 20 · typical time to resolve 48 min Apr 2026: 6 incidents (1 critical, 2 major, 3 minor) · typical time to resolve 45 min May 2026: 3 incidents (1 major, 2 minor) · typical time to resolve 46 min Jun 2026: 5 incidents (2 major, 2 minor, 1 no impact stated) · typical time to resolve 38 min Jul 2026: 7 incidents (1 major, 5 minor, 1 no impact stated) · typical time to resolve 1 h 14 min Aug 2026: 1 incident (1 major) · typical time to resolve 2 h 4 min Sep 2026: 3 incidents (2 major, 1 minor) · typical time to resolve 34 min Oct 2026: 1 incident (1 minor) Nov 2026: 1 incident (1 minor) · typical time to resolve 4 min Mar 2026Apr May Jun Jul Aug Sep Oct Nov

critical major minor no impact stated before or partly before our history

As OneSignal's status page reports its own incidents (scheduled maintenance left out), read every few hours since (evidence)

Incidents reported by OneSignal's subprocessorsCSV of incidents reported by vendors OneSignal lists · Atom feed of incidents reported by vendors OneSignal lists

187 reported incidents in the last 30 days, by 4 of the vendors OneSignal lists as subprocessors.

A subprocessor list names a company, not the service an incident touched. This does not show that OneSignal was involved.

DateCompanyIncidentImpactLasted
TwilioSMS Delivery Failures from Twilio to Turkcell Turkey minor3 h 54 min
TwilioRetroactive Incident Impacting Twilio Usage APIs no impact stated1 min
TwilioIssue resolved minor1 h 43 min
TwilioSMS Delivery Receipt Delays from Twilio Phone Numbers to Movistar Venezuela minor3 h 26 min
TwilioGateway API (Lookup API) Failure Increase on Verizon in United States minor10 h 23 min
TwilioWhatsApp Business API Message Send Failures minor16 h 29 min
TwilioVoice Call Failures from a Subset of Twilio Phone Numbers to Chile minor19 h 20 min
TwilioVoice Call Audio Quality Degradation, Silent and One-Way Audio between Twilio and Multiple Networks in United Kingdom minor5 h 18 min
TwilioSMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Multiple Networks in Italy minor3 h 14 min
TwilioSMS Delivery Delays and Failures from Twilio to Spusu United Kingdom minor3 h 26 min
TwilioSMS Delivery Receipt Delays from Twilio to Bouygues Telecom France minor13 h 31 min
TwilioSMS Delivery Failures from Network Subscribers in Germany to a Subset of Twilio Long Codes minor8 h 40 min
TwilioSMS Delivery Failures from Twilio to ETL Laos minor16 h 8 min
TwilioSMS Delivery Failures from Twilio to MTN Nigeria minor6 h
TwilioSilent Network Authentication (SNA) Failure Increase and Gateway API (Lookup API) Failure Increase on EnStream in Canada minor14 h 12 min
TwilioSMS Delivery Receipt Delays from Twilio to Globe Philippines minor13 h 16 min
TwilioSMS Delivery Receipt Delays from a Subset of Twilio Long Codes and Short Codes to Multiple Networks in United States minor21 h 36 min
TwilioSMS Delivery Delays from Twilio to Multiple Networks in India minor3 h 39 min
TwilioSMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Multiple Networks in New Zealand minor2 days
TwilioSMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Networks in Chile minorongoing
TwilioSMS Delivery Delays from Twilio to Claro Dominican Republic minor3 h 46 min
TwilioTwiML ConversationRelay Documents Page Error minor1 h 55 min
TwilioVoice Call Failures from a Subset of Twilio Phone Numbers to Chile minor3 h 44 min
IntercomElevated errors and latencies in the European hosting region. major49 min
TwilioVoice Call Audio Quality Degradation from a Subset of Twilio Mobile Numbers to Claro Colombia minor36 min

And 162 more. All of them: CSV · Who is around them.

ChangesCSV of OneSignal's changes · Atom feed of OneSignal's changes

See the list as we read it on any date: Time machine

None since tracking began.

Rating badge for OneSignal's site

OneSignal transparency rating

It updates with the rating.

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