# What does Grammarly use? Grammarly (grammarly.com) shows public evidence of 62 tools, according to runsonwhat (last checked 2026-10-20). - LinkedIn: https://www.linkedin.com/company/grammarly ## 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 | Website code | | | [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records | | | [Google Cloud](https://www.runsonwhat.com/reverse/gcp) | Hosting & Cloud | Custom domain | | | [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Custom domain, Website code | 2018-11 | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code | | | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | | [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [Stripe](https://www.runsonwhat.com/reverse/stripe) | Payments & Billing | DNS verification records, Website code | | | [Frontify](https://www.runsonwhat.com/reverse/frontify) | Media & UI | Custom domain | 2023-05 | ## 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 | | | [Microsoft Clarity](https://www.runsonwhat.com/reverse/clarity) | Analytics | Website code | | | [Atlassian Statuspage](https://www.runsonwhat.com/reverse/statuspage) | Monitoring | Custom domain, DNS verification records, Website code | 2018-11 | ## 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 | | | [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [TikTok Pixel](https://www.runsonwhat.com/reverse/tiktok-pixel) | Ads & Pixels | Website code | | | [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Custom domain | 2016-07 | | [Microsoft Xandr](https://www.runsonwhat.com/reverse/xandr) | Ads & Pixels | Website code | | | [Salesforce](https://www.runsonwhat.com/reverse/salesforce) | Sales & CRM | Email records, Website code | | | [Pardot](https://www.runsonwhat.com/reverse/pardot) | Marketing | Custom domain, DNS verification records, Email records, Website code | 2020-10 | | [The Trade Desk](https://www.runsonwhat.com/reverse/tradedesk) | Ads & Pixels | Website code | | | [Reddit Ads](https://www.runsonwhat.com/reverse/reddit-ads) | Ads & Pixels | Website code | | | [ZoomInfo](https://www.runsonwhat.com/reverse/zoominfo) | Sales & CRM | Website code | | | [Taboola](https://www.runsonwhat.com/reverse/taboola) | Ads & Pixels | Website code | | | [Salesforce Marketing Cloud](https://www.runsonwhat.com/reverse/sfmc) | Marketing | Custom domain | 2018-03 | | [Contentful](https://www.runsonwhat.com/reverse/contentful) | Website & CMS | Website code | | | [6sense](https://www.runsonwhat.com/reverse/sixsense) | Sales & CRM | Website code | | | [Quora Ads](https://www.runsonwhat.com/reverse/quora-ads) | Ads & Pixels | Website code | | | [TVSquared](https://www.runsonwhat.com/reverse/tvsquared) | Ads & Pixels | Website code | | | [Drift](https://www.runsonwhat.com/reverse/drift) | Support & Docs | DNS verification records | | | [impact.com](https://www.runsonwhat.com/reverse/impact-com) | Marketing | Website code | | | [Common Room](https://www.runsonwhat.com/reverse/commonroom) | Sales & CRM | Website code | | | [Reachdesk](https://www.runsonwhat.com/reverse/reachdesk) | Marketing | DNS verification records | | | [Goldcast](https://www.runsonwhat.com/reverse/goldcast) | Marketing | Custom domain | 2025-03 | | [Allbound](https://www.runsonwhat.com/reverse/allbound) | Sales & CRM | Custom domain | 2024-04 | ## 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 | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | DNS verification records | | | [KnowBe4](https://www.runsonwhat.com/reverse/knowbe4) | Security & Compliance | Email records | | | [Adobe](https://www.runsonwhat.com/reverse/adobe) | Collaboration | DNS verification records | | | [DocuSign](https://www.runsonwhat.com/reverse/docusign) | Finance & Legal | DNS verification records, Website code | | | [dmarcian](https://www.runsonwhat.com/reverse/dmarcian) | Security & Compliance | Email records | | | [Miro](https://www.runsonwhat.com/reverse/miro) | Collaboration | DNS verification records | | | [Jamf](https://www.runsonwhat.com/reverse/jamf) | Security & Compliance | DNS verification records | | | [Cursor](https://www.runsonwhat.com/reverse/cursor) | Dev Tools | DNS verification records | | | [SparkPost](https://www.runsonwhat.com/reverse/sparkpost) | Email Delivery | Custom domain | | | [Notion](https://www.runsonwhat.com/reverse/notion) | Collaboration | DNS verification records | | | [Docker](https://www.runsonwhat.com/reverse/docker) | Dev Tools | DNS verification records | | | [Postman](https://www.runsonwhat.com/reverse/postman) | Dev Tools | DNS verification records | | | [Zapier](https://www.runsonwhat.com/reverse/zapier) | Dev Tools | DNS verification records | | | [Detectify](https://www.runsonwhat.com/reverse/detectify) | Security & Compliance | DNS verification records, Website code | | | [HackerOne](https://www.runsonwhat.com/reverse/hackerone) | Security & Compliance | Website config | | | [Wrike](https://www.runsonwhat.com/reverse/wrike) | Collaboration | DNS verification records | | | [Parallels](https://www.runsonwhat.com/reverse/parallels) | Dev Tools | DNS verification records | | | [Transcend](https://www.runsonwhat.com/reverse/transcend) | Security & Compliance | Website code | | ## Recent changes at Grammarly - 2026-10-08: started using [KnowBe4](https://www.runsonwhat.com/reverse/knowbe4) ## FAQ ### What tools does Grammarly use? As of October 2026, runsonwhat has found 62 tools at Grammarly (grammarly.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: YouTube, React and Next.js. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Google Workspace and Apple Business. Last checked October 20, 2026. ### What cloud does Grammarly run on? Grammarly uses Amazon Web Services for hosting and cloud infrastructure, alongside Google Cloud, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on grammarly.com. Amazon Web Services is used by 145,819 companies runsonwhat tracks. ### What CRM does Grammarly use? Grammarly uses Salesforce for its CRM, alongside ZoomInfo, 6sense and Common Room, according to runsonwhat (October 2026). runsonwhat found Salesforce through email records that authorize Salesforce and code on grammarly.com. Salesforce is used by 34,180 companies runsonwhat tracks. ### What email provider does Grammarly use? Grammarly 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 712,567 companies runsonwhat tracks. ### What does Grammarly use for customer support? Grammarly uses Zendesk for customer support and documentation, alongside Drift, according to runsonwhat (October 2026). runsonwhat found Zendesk through a subdomain that points at Zendesk, and Grammarly has used it since at least July 2016. Zendesk is used by 42,046 companies runsonwhat tracks. ### What payment provider does Grammarly use? Grammarly uses Stripe for payments and billing, according to runsonwhat (October 2026). runsonwhat found Stripe through a DNS verification record for Stripe and code on grammarly.com. Stripe is used by 28,720 companies runsonwhat tracks. ### How long has Grammarly used Zendesk? Grammarly has used Zendesk since at least July 2016, going by the first public certificate of the grammarly.com subdomain that points at Zendesk. Other long-running tools at Grammarly include Salesforce Marketing Cloud (since March 2018), Atlassian Statuspage (since November 2018) and Amazon CloudFront (since November 2018). ### Does Grammarly use Cloudflare? Yes. runsonwhat found Cloudflare at Grammarly through Cloudflare code on grammarly.com. Cloudflare is a CDN & Edge tool used by 705,616 companies runsonwhat tracks. ### Does Grammarly use AI tools? Yes. runsonwhat has found Anthropic at Grammarly; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Grammarly may use more AI tools than these. ### Has Grammarly changed tools recently? Yes. On runsonwhat's rechecks, Grammarly started using KnowBe4 (latest on October 8, 2026). A change counts only between two checks of grammarly.com done the same way. ### Which companies have a tech stack similar to Grammarly's? The companies with the stacks most like Grammarly's are Tines, Uber, Intuit and ShipBob, according to runsonwhat (October 2026). Each shares 20 to 29 tools with Grammarly, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Grammarly uses? runsonwhat reads public records only. Of the 62 tools at Grammarly, 25 were found through code on grammarly.com, 22 through DNS records, 10 through subdomains that point at the vendor, 4 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 grammarly.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/grammarly.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.