# What does Whistic use? Whistic (whistic.com) shows public evidence of 40 tools, according to runsonwhat (last checked 2026-11-03). - Industry: Computer & Network Security - Size: 51–200 employees - Based in: Salt Lake City, United States - Founded: 2015 - LinkedIn: https://www.linkedin.com/company/whistic ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Website code | | | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Subprocessor list, Website code | | | [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records, Subprocessor list | | | [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records | | | [Twilio](https://www.runsonwhat.com/reverse/twilio) | Backend & Database | Subprocessor list | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code | | | [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code | | | [Segment](https://www.runsonwhat.com/reverse/segment) | Analytics | DNS verification records, Subprocessor list, Website code | | | [Pendo](https://www.runsonwhat.com/reverse/pendo) | Analytics | DNS verification records, Subprocessor list | | | [Databricks](https://www.runsonwhat.com/reverse/databricks) | Data Pipeline | Subprocessor list | | | [Fivetran](https://www.runsonwhat.com/reverse/fivetran) | Data Pipeline | Subprocessor list | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | Website code | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code, Subprocessor list | | | [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code | | | [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Website code | | | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Email records, Website code | | | [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Subprocessor list | | | [Salesforce](https://www.runsonwhat.com/reverse/salesforce) | Sales & CRM | Subprocessor list | | | [Reddit Ads](https://www.runsonwhat.com/reverse/reddit-ads) | Ads & Pixels | Website code | | | [Storylane](https://www.runsonwhat.com/reverse/storylane) | Marketing | Website code, Subprocessor list | | | [Salesloft](https://www.runsonwhat.com/reverse/salesloft) | Sales & CRM | Website code | | | [Instantly](https://www.runsonwhat.com/reverse/instantly) | Sales & CRM | Subprocessor list | | | [Clay](https://www.runsonwhat.com/reverse/clay) | Sales & CRM | Subprocessor list | | | [UserGems](https://www.runsonwhat.com/reverse/usergems) | Sales & CRM | Subprocessor list | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records | | | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records, Website code | | | [Cookiebot](https://www.runsonwhat.com/reverse/cookiebot) | Security & Compliance | Website code | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records, Subprocessor list | | | [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | Email records, Website code | | | [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records | | | [KnowBe4](https://www.runsonwhat.com/reverse/knowbe4) | Security & Compliance | Email records | | | [Zoom](https://www.runsonwhat.com/reverse/zoom) | Collaboration | Subprocessor list | | | [Slack](https://www.runsonwhat.com/reverse/slack) | Collaboration | DNS verification records, Subprocessor list | | | [Notion](https://www.runsonwhat.com/reverse/notion) | Collaboration | Subprocessor list | | | [Zapier](https://www.runsonwhat.com/reverse/zapier) | Dev Tools | DNS verification records, Subprocessor list | | ## FAQ ### What tools does Whistic use? As of November 2026, runsonwhat has found 40 tools at Whistic (whistic.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: Anthropic, OpenAI and Twilio. Data & Observability: Google Analytics, Google Tag Manager and Segment. Go-to-market: Google Ads, Meta Pixel and LinkedIn Insight Tag. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked November 3, 2026. ### What cloud does Whistic run on? Whistic uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through Amazon Web Services on whistic.com's subprocessor list and code on whistic.com. Amazon Web Services is used by 147,280 companies runsonwhat tracks. ### What CRM does Whistic use? Whistic uses HubSpot for its CRM, alongside Salesforce, Salesloft and Instantly, according to runsonwhat (November 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on whistic.com. HubSpot is used by 97,272 companies runsonwhat tracks. ### What email provider does Whistic use? Whistic uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 729,993 companies runsonwhat tracks. ### What does Whistic use for customer support? Whistic uses Zendesk for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Zendesk through Zendesk on whistic.com's subprocessor list. Zendesk is used by 43,457 companies runsonwhat tracks. ### What analytics tools does Whistic use? Whistic uses Google Analytics for analytics, alongside Google Tag Manager, Segment and Pendo, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on whistic.com. Google Analytics is used by 903,719 companies runsonwhat tracks. ### Does Whistic use Cloudflare? Yes. runsonwhat found Cloudflare at Whistic through Cloudflare code on whistic.com. Cloudflare is a CDN & Edge tool used by 731,025 companies runsonwhat tracks. ### Does Whistic use AI tools? Yes. runsonwhat has found Anthropic and OpenAI at Whistic; Anthropic, for example, through a DNS verification record for Anthropic and its subprocessor list. AI services called only from servers leave no public trace, so Whistic may use more AI tools than these. ### Which companies have a tech stack similar to Whistic's? The companies with the stacks most like Whistic's are Zigzag Global, Hightouch, Totango and Groups360, according to runsonwhat (November 2026). Each shares 16 to 21 tools with Whistic, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Whistic uses? runsonwhat reads public records only. Of the 40 tools at Whistic, 12 were found through code on whistic.com, 11 through its own subprocessor list, 10 through DNS records, 6 through email records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and whistic.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/whistic.com (updated November 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.