Summation

summation.com

Summation declares 11 subprocessors in its subprocessor list, which we last checked on Nov 11, 2026 (evidence). They include Amazon Web Services, OpenAI and Anthropic. No published changes since we first read it on Nov 6, 2026.

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

11 third parties.

NamePurposeLocationListed since
Amazon Web Services (AWS) Cloud InfrastructureUS
Anthropic AIGenerative AI services provider for InferenceUS
Confluent KafkaUS
Datadog Observability, Logging, Error MonitoringUS
Fireworks AI AIGenerative AI services provider for InferenceUS
GitHub Configuration ManagementUS
Okta, Inc. User authentication services (via Stytch)US
OpenAI AIGenerative AI services provider for InferenceUS
PostHog Web AnalyticsUS
Spice.AI Query FederationUS
Stytch Authentication/AuthorizationUS

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

Summation's homepage made 166 requests to 19 domains, and 8 services controlled by another company.

Analytics (3): Clay, LinkedIn, SnitcherAdvertising (2): Google Cloud, Reddit, Inc.Marketing automation (1): HubSpotCDN (1): jsDelivrOther (1): Page builders: Framer

8 third parties by category: Analytics 3Advertising 2Marketing automation 1CDN 1Other 1

Third parties 8 · 137 requests
Framer Framer Sites 64% of the page's requests 107
Google Cloud DoubleClick Floodlight Google Analytics Google Tag Manager 7% of the page's requests 11
HubSpot HubSpot 4% of the page's requests 6
Clay Clay Web Intent 2% of the page's requests 4
LinkedIn Linkedin Insight Tag 2% of the page's requests 3
Snitcher Snitcher 2% of the page's requests 3
Reddit, Inc. Reddit Ads 1% of the page's requests 2
jsDelivr jsDelivr <1% of the page's requests 1
First party 1 · 29 requests
Summation Framer Motion Google Font API HSTS HTTP/3 Open Graph Priority Hints React 17% of the page's requests 29

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

ComplianceCSV of Summation's compliance · Atom feed of Summation's compliance

Certified

Certifications as Summation's trust center lists them; reports are usually shared on request (evidence)

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

Aug 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: no incident reportedSep 19: no incident reportedSep 20: no incident reportedSep 21: no incident reportedSep 22: no incident reportedSep 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: no incident reportedOct 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: no incident reportedOct 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: no incident reportedNov 10: no incident reportedNov 11: no incident reportedNov 12: no incident reported

90 days agotoday

  • 0 incidents in 90 days
  • 0 major or critical
BeganIncidentImpactLasted
Elevated API Errorsminor2 h 13 min
Elevated API Errorsminor21 min
Application errormajor6 h 19 min
Elevated API Errorsminor3 min

Incidents per month

0 2 4 Dec 2025: 1 incident (1 major) · typical time to resolve 6 h 19 min Jan 2026: 0 incidents Feb 2026: 0 incidents Mar 2026: 2 incidents (2 minor) · typical time to resolve 2 h 13 min Apr 2026: 0 incidents May 2026: 0 incidents Jun 2026: 0 incidents Jul 2026: 0 incidents Aug 2026: 0 incidents Sep 2026: 0 incidents Oct 2026: 0 incidents Nov 2026: 0 incidents Dec 2025Jan 2026Feb Mar Apr May Jun Jul Aug Sep Oct Nov

critical major minor no impact stated

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

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

356 reported incidents in the last 30 days, by 7 of the vendors Summation lists as subprocessors.

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

DateCompanyIncidentImpactLasted
TwilioMMS Delivery Failures from Twilio to GCI United States minor3 min
TwilioSMS Delivery Failures from Twilio 10DLC to AT&T United States minorongoing
TwilioSMS Delivery Failures from Twilio to Orange Sierra Leone minorongoing
TwilioSMS Delivery Failures From Long Code Numbers to AT&T in the US minor1 h 19 min
TwilioSMS Delivery Delays from Twilio to MTS Kazakhstan minorongoing
TwilioSMS Delivery Failures from a Subset of Twilio Phone Numbers to Tcell Tajikistan minorongoing
OpenAIUnable to start new Workspace Agent runs criticalongoing
TwilioMMS Delivery Delays from a Subset of Twilio Long Codes to Multiple Small Networks in United States minorongoing
TwilioSMS Delivery Failures from a Subset of Twilio Phone Numbers to K-Cell Kazakhstan minorongoing
FireworksService Degradation for Kimi K3.1 Pro minor2 min
GitHubImpact across multiple GitHub products including Actions, Pages, and Copilot products. critical33 min
OpenAIElevated errors affecting logins, sign-ups, and ChatGPT features minor8 min
GitHubIncident with Webhooks minor4 min
TwilioVoice Call Failures in JP1 minor3 h 51 min
TwilioSMS Delivery Failures from Twilio to Turkcell Turkey minor3 h 54 min
FireworksService Degradation for GLM 5.3 minor24 min
FireworksService Degradation for DeepSeek V4.1 Flash 1017 minor1 h 25 min
TwilioRetroactive Incident Impacting Twilio Usage APIs no impact stated1 min
AnthropicElevated errors on Fable 52 and Mythos 52 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
GitHubIncident with Git Operations and Pull Requests critical1 h 44 min
FireworksService Degradation for Kimi K3 minorongoing
FireworksService Degradation for Kimi K3 US minor1 h 5 min
TwilioGateway API (Lookup API) Failure Increase on Verizon in United States minor10 h 23 min

And 331 more. All of them: CSV · Who is around them.

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

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

None since tracking began.

Rating badge for Summation's site

Summation transparency rating

It updates with the rating.

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