# What does PagerDuty use? PagerDuty (catalytic.com) shows public evidence of 24 tools, according to runsonwhat (last checked 2026-10-23). - Industry: Software - Size: 51–200 employees - Based in: Chicago, United States - Founded: 2015 - LinkedIn: https://www.linkedin.com/company/pagerduty ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Website code | | | [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records | | | [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Custom domain | | | [WP Engine](https://www.runsonwhat.com/reverse/wpengine) | Hosting & Cloud | Website code | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Bugsnag](https://www.runsonwhat.com/reverse/bugsnag) | Monitoring | Website code | | | [VWO](https://www.runsonwhat.com/reverse/vwo) | Flags & Experiments | Website code | | | [Atlassian Statuspage](https://www.runsonwhat.com/reverse/statuspage) | Monitoring | DNS verification records | | | [Segment](https://www.runsonwhat.com/reverse/segment) | Analytics | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code | | | [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code | | | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Custom domain, Email records | | | [HubSpot CMS](https://www.runsonwhat.com/reverse/hubspot-cms) | Website & CMS | Custom domain | | | [Demandbase](https://www.runsonwhat.com/reverse/demandbase) | Sales & CRM | Website code | | | [Marketo](https://www.runsonwhat.com/reverse/marketo) | Marketing | Website code | | | [Vanilla Forums](https://www.runsonwhat.com/reverse/vanilla) | Support & Docs | Custom domain | | ## 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 | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | | [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | Email records | | | [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records | | | [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | Website code | | | [Cloudflare Turnstile](https://www.runsonwhat.com/reverse/turnstile) | Security & Compliance | Website code | | | [Postmark](https://www.runsonwhat.com/reverse/postmark) | Email Delivery | Email records | | ## FAQ ### What tools does PagerDuty use? As of October 2026, runsonwhat has found 24 tools at PagerDuty (catalytic.com) in public records. Edge & Hosting: Cloudflare, Amazon Route 53 and Amazon CloudFront. Data & Observability: Bugsnag, VWO and Atlassian Statuspage. Go-to-market: WordPress, Yoast SEO and HubSpot. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 23, 2026. ### What cloud does PagerDuty run on? PagerDuty uses WP Engine for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found WP Engine through WP Engine code on catalytic.com. WP Engine is used by 51,334 companies runsonwhat tracks. ### What CRM does PagerDuty use? PagerDuty uses HubSpot for its CRM, alongside Demandbase, according to runsonwhat (October 2026). runsonwhat found HubSpot through a subdomain that points at HubSpot and email records. HubSpot is used by 94,296 companies runsonwhat tracks. ### What email provider does PagerDuty use? PagerDuty uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 712,532 companies runsonwhat tracks. ### What does PagerDuty use for customer support? PagerDuty uses Vanilla Forums for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Vanilla Forums through a subdomain that points at Vanilla Forums. Vanilla Forums is used by 121 companies runsonwhat tracks. ### What analytics tools does PagerDuty use? PagerDuty uses Segment for analytics, according to runsonwhat (October 2026). runsonwhat found Segment through Segment code on catalytic.com. Segment is used by 6,644 companies runsonwhat tracks. ### Does PagerDuty use Cloudflare? Yes. runsonwhat found Cloudflare at PagerDuty through Cloudflare code on catalytic.com. Cloudflare is a CDN & Edge tool used by 705,118 companies runsonwhat tracks. ### Which companies have a tech stack similar to PagerDuty's? The companies with the stacks most like PagerDuty's are Gainsight, Board, Infor and Iress, according to runsonwhat (October 2026). Each shares 10 to 14 tools with PagerDuty, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what PagerDuty uses? runsonwhat reads public records only. Of the 24 tools at PagerDuty, 11 were found through code on catalytic.com, 5 through email records, 4 through DNS records and 4 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and catalytic.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/catalytic.com (updated October 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.