# What does G2 use? G2 (g2.com) shows public evidence of 39 tools, according to runsonwhat (last checked 2026-10-09). - Industry: Internet - Size: 201–1,000 employees - Based in: Chicago, United States - Founded: 2012 - LinkedIn: https://www.linkedin.com/company/g2dotcom ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code | | | [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | DNS verification records | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records | | | [TollBit](https://www.runsonwhat.com/reverse/tollbit) | AI | DNS verification records | | | [Dust](https://www.runsonwhat.com/reverse/dust) | AI | DNS verification records | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Segment](https://www.runsonwhat.com/reverse/segment) | Analytics | DNS verification records | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | DNS verification records | | | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Custom domain, DNS verification records | | | [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Email records | | | [Salesforce](https://www.runsonwhat.com/reverse/salesforce) | Sales & CRM | Custom domain | | | [HubSpot CMS](https://www.runsonwhat.com/reverse/hubspot-cms) | Website & CMS | Custom domain | | | [Yandex Webmaster](https://www.runsonwhat.com/reverse/yandex) | Marketing | DNS verification records | | | [Northpass](https://www.runsonwhat.com/reverse/northpass) | Support & Docs | DNS verification records | | | [Botify](https://www.runsonwhat.com/reverse/botify) | Marketing | DNS verification records | | ## 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 | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records | | | [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records | | | [GlobalSign](https://www.runsonwhat.com/reverse/globalsign) | Security & Compliance | DNS records | | | [Mailgun](https://www.runsonwhat.com/reverse/mailgun) | Email Delivery | DNS verification records | | | [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records | | | [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records | | | [Google Trust Services](https://www.runsonwhat.com/reverse/google-trust) | Security & Compliance | DNS records | | | [Adobe](https://www.runsonwhat.com/reverse/adobe) | Collaboration | DNS verification records | | | [DocuSign](https://www.runsonwhat.com/reverse/docusign) | Finance & Legal | DNS verification records | | | [Zoom](https://www.runsonwhat.com/reverse/zoom) | Collaboration | DNS verification records | | | [EasyDMARC](https://www.runsonwhat.com/reverse/easydmarc) | Security & Compliance | Email records | | | [Amazon Business](https://www.runsonwhat.com/reverse/amazon-business) | Finance & Legal | DNS verification records | | | [Vanta](https://www.runsonwhat.com/reverse/vanta) | Security & Compliance | Custom domain | | | [Zapier](https://www.runsonwhat.com/reverse/zapier) | Dev Tools | DNS verification records | | | [Uber for Business](https://www.runsonwhat.com/reverse/uber) | Finance & Legal | DNS verification records | | | [HackerOne](https://www.runsonwhat.com/reverse/hackerone) | Security & Compliance | DNS verification records | | | [DataDome](https://www.runsonwhat.com/reverse/datadome) | Security & Compliance | Custom domain, DNS verification records | | ## Recent changes at G2 - 2026-10-09: started using [Amazon Business](https://www.runsonwhat.com/reverse/amazon-business) ## FAQ ### What tools does G2 use? As of October 2026, runsonwhat has found 39 tools at G2 (g2.com) in public records. Edge & Hosting: Cloudflare and Vercel. Application: Anthropic, OpenAI and TollBit. Data & Observability: Segment. Go-to-market: Meta Pixel, HubSpot and Zendesk. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 9, 2026. ### What cloud does G2 run on? G2 uses Vercel for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Vercel through a DNS verification record for Vercel. Vercel is used by 46,410 companies runsonwhat tracks. ### What CRM does G2 use? G2 uses HubSpot for its CRM, alongside Salesforce, according to runsonwhat (October 2026). runsonwhat found HubSpot through a subdomain that points at HubSpot and a DNS verification record. HubSpot is used by 92,029 companies runsonwhat tracks. ### What email provider does G2 use? G2 uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 701,682 companies runsonwhat tracks. ### What does G2 use for customer support? G2 uses Zendesk for customer support and documentation, alongside Northpass, according to runsonwhat (October 2026). runsonwhat found Zendesk through email records that authorize Zendesk. Zendesk is used by 40,910 companies runsonwhat tracks. ### What analytics tools does G2 use? G2 uses Segment for analytics, according to runsonwhat (October 2026). runsonwhat found Segment through a DNS verification record for Segment. Segment is used by 6,416 companies runsonwhat tracks. ### Does G2 use Cloudflare? Yes. runsonwhat found Cloudflare at G2 through DNS records that point at Cloudflare and code on g2.com. Cloudflare is a CDN & Edge tool used by 692,188 companies runsonwhat tracks. ### Does G2 use AI tools? Yes. runsonwhat has found Anthropic, OpenAI, TollBit and Dust at G2; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so G2 may use more AI tools than these. ### Has G2 changed tools recently? Yes. On runsonwhat's rechecks, G2 started using Amazon Business (latest on October 9, 2026). A change counts only between two checks of g2.com done the same way. ### Which companies have a tech stack similar to G2's? The companies with the stacks most like G2's are Kiwi.com s.r.o., Glassdoor, Flock Safety and Front, according to runsonwhat (October 2026). Each shares 14 to 21 tools with G2, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what G2 uses? runsonwhat reads public records only. Of the 39 tools at G2, 28 were found through DNS records, 5 through email records, 5 through subdomains that point at the vendor and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and g2.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/g2.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.