# What does Letras use? Letras (letras.com) shows public evidence of 30 tools, according to runsonwhat (last checked 2026-10-10). - Industry: Software - Size: 51–200 employees - Based in: Belo Horizonte, Brazil - Founded: 2003 - LinkedIn: https://www.linkedin.com/company/letras ## 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 | | | [Akamai](https://www.runsonwhat.com/reverse/akamai) | CDN & Edge | Custom domain | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code | | | [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | DNS verification records | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [Google Ad Manager](https://www.runsonwhat.com/reverse/google-ad-manager) | Ads & Pixels | Website code | | | [Microsoft Xandr](https://www.runsonwhat.com/reverse/xandr) | Ads & Pixels | Website code | | | [LiveRamp](https://www.runsonwhat.com/reverse/liveramp) | Ads & Pixels | Website code | | | [Criteo](https://www.runsonwhat.com/reverse/criteo) | Ads & Pixels | Website code | | | [Adobe Audience Manager](https://www.runsonwhat.com/reverse/adobe-audience-manager) | Ads & Pixels | Website code | | | [StackAdapt](https://www.runsonwhat.com/reverse/stackadapt) | Ads & Pixels | Website code | | | [Magnite](https://www.runsonwhat.com/reverse/magnite) | Ads & Pixels | Website code | | | [PubMatic](https://www.runsonwhat.com/reverse/pubmatic) | Ads & Pixels | Website code | | | [Amazon Advertising](https://www.runsonwhat.com/reverse/amazon-advertising) | Ads & Pixels | Website code | | | [Demandbase](https://www.runsonwhat.com/reverse/demandbase) | Sales & CRM | Website code | | | [RTB House](https://www.runsonwhat.com/reverse/rtb-house) | Ads & Pixels | Website code | | | [Adobe Advertising](https://www.runsonwhat.com/reverse/adobe-advertising) | Ads & Pixels | Website code | | | [Quantcast](https://www.runsonwhat.com/reverse/quantcast) | Ads & Pixels | Website code | | | [RD Station](https://www.runsonwhat.com/reverse/rd-station) | Marketing | Email records | | | [MediaMath](https://www.runsonwhat.com/reverse/mediamath) | Ads & Pixels | Website code | | | [Lotame](https://www.runsonwhat.com/reverse/lotame) | Ads & Pixels | Website code | | | [Smart Ad Server](https://www.runsonwhat.com/reverse/smart-ad-server) | Ads & Pixels | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code | | | [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records, Website code | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | ## FAQ ### What tools does Letras use? As of October 2026, runsonwhat has found 30 tools at Letras (letras.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Data & Observability: Google Tag Manager and Sentry. Go-to-market: Meta Pixel, LinkedIn Insight Tag and Google Ad Manager. Company Ops: Google Workspace, reCAPTCHA and SendGrid. Last checked October 10, 2026. ### What cloud does Letras run on? Letras uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on letras.com. Amazon Web Services is used by 144,747 companies runsonwhat tracks. ### What sales tools does Letras use? The sales tools runsonwhat has found at Letras are Demandbase (October 2026); no CRM shows up in Letras' public records. runsonwhat found Demandbase through Demandbase code on letras.com. Demandbase is used by 9,484 companies runsonwhat tracks. ### What email provider does Letras use? Letras uses Google Workspace for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on letras.com. Google Workspace is used by 396,649 companies runsonwhat tracks. ### What analytics tools does Letras use? Letras uses Google Tag Manager for analytics, according to runsonwhat (October 2026). runsonwhat found Google Tag Manager through Google Tag Manager code on letras.com. Google Tag Manager is used by 487,623 companies runsonwhat tracks. ### What marketing software does Letras use? Letras uses RD Station for marketing, according to runsonwhat (October 2026). runsonwhat found RD Station through email records that authorize RD Station. RD Station is used by 8,482 companies runsonwhat tracks. ### Does Letras use Cloudflare? Yes. runsonwhat found Cloudflare at Letras through Cloudflare code on letras.com. Cloudflare is a CDN & Edge tool used by 691,724 companies runsonwhat tracks. ### How does runsonwhat know what Letras uses? runsonwhat reads public records only. Of the 30 tools at Letras, 22 were found through code on letras.com, 4 through DNS records, 3 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and letras.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/letras.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.