# What does MailboxValidator use? MailboxValidator (mailboxvalidator.com) shows public evidence of 24 tools, according to runsonwhat (last checked 2026-10-20). - Industry: IT Services - Size: 11–50 employees - Based in: George Town, Malaysia - Founded: 2013 - LinkedIn: https://www.linkedin.com/company/mailboxvalidator ## 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 | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code | | | [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code | | | [Font Awesome](https://www.runsonwhat.com/reverse/fontawesome) | Media & UI | Website code | | | [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code | | ## 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 | | | [updown.io](https://www.runsonwhat.com/reverse/updown) | Monitoring | Custom domain | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Website code | | | [Trustpilot](https://www.runsonwhat.com/reverse/trustpilot) | Marketing | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records, Website code | | | [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | Email records, Website code | | | [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS 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 | | | [Amazon Trust Services](https://www.runsonwhat.com/reverse/amazon-trust) | Security & Compliance | DNS records | | | [SparkPost](https://www.runsonwhat.com/reverse/sparkpost) | Email Delivery | Custom domain, Email records, Website code | | | [HubSpot App Developer](https://www.runsonwhat.com/reverse/hubspot-developer) | Dev Tools | DNS verification records | | ## FAQ ### What tools does MailboxValidator use? As of October 2026, runsonwhat has found 24 tools at MailboxValidator (mailboxvalidator.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: jQuery, Google Fonts and Font Awesome. Data & Observability: Google Analytics, Google Tag Manager and updown.io. Go-to-market: Google Ads, HubSpot and Trustpilot. Company Ops: SendGrid, Amazon SES and Let's Encrypt. Last checked October 20, 2026. ### What cloud does MailboxValidator run on? MailboxValidator 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 mailboxvalidator.com. Amazon Web Services is used by 145,605 companies runsonwhat tracks. ### What CRM does MailboxValidator use? MailboxValidator uses HubSpot for its CRM, according to runsonwhat (October 2026). runsonwhat found HubSpot through HubSpot code on mailboxvalidator.com. HubSpot is used by 93,855 companies runsonwhat tracks. ### What analytics tools does MailboxValidator use? MailboxValidator uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on mailboxvalidator.com. Google Analytics is used by 878,158 companies runsonwhat tracks. ### What marketing software does MailboxValidator use? MailboxValidator uses Trustpilot for marketing, according to runsonwhat (October 2026). runsonwhat found Trustpilot through Trustpilot code on mailboxvalidator.com. Trustpilot is used by 15,908 companies runsonwhat tracks. ### What monitoring tools does MailboxValidator use? MailboxValidator uses updown.io for monitoring, according to runsonwhat (October 2026). runsonwhat found updown.io through a subdomain that points at updown.io. updown.io is used by 152 companies runsonwhat tracks. ### Does MailboxValidator use jQuery? Yes. runsonwhat found jQuery at MailboxValidator through jQuery code on mailboxvalidator.com. jQuery is a Frontend tool used by 914,580 companies runsonwhat tracks. ### Which companies have a tech stack similar to MailboxValidator's? The companies with the stacks most like MailboxValidator's are FutureFund, Sedomicilier, Formx.ai and Selia, according to runsonwhat (October 2026). Each shares 9 to 12 tools with MailboxValidator, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what MailboxValidator uses? runsonwhat reads public records only. Of the 24 tools at MailboxValidator, 11 were found through code on mailboxvalidator.com, 8 through DNS records, 2 through email records, 2 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 mailboxvalidator.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/mailboxvalidator.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.