# What does Check-6 use?

Check-6 (checksix.com) shows public evidence of 21 tools, according to runsonwhat (last checked 2026-10-16).

- Industry: Management Consulting
- Size: 201–1,000 employees
- Based in: Tulsa, United States
- Founded: 2007
- LinkedIn: https://www.linkedin.com/company/check-6-inc-

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code |  |

## 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 |  |
| [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code |  |
| [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code |  |
| [Auth0](https://www.runsonwhat.com/reverse/auth0) | Auth & Identity | Custom domain, Website config |  |

## 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 |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code |  |
| [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code |  |
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |
| [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Email records |  |
| [Zoho](https://www.runsonwhat.com/reverse/zoho) | Sales & CRM | Custom domain |  |
| [ZoomInfo](https://www.runsonwhat.com/reverse/zoominfo) | Sales & CRM | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records |  |
| [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code |  |
| [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records |  |
| [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records |  |
| [CookieYes](https://www.runsonwhat.com/reverse/cookieyes) | Security & Compliance | Website code |  |
| [Barracuda](https://www.runsonwhat.com/reverse/barracuda) | Security & Compliance | Email records |  |

## FAQ

### What tools does Check-6 use?

As of October 2026, runsonwhat has found 21 tools at Check-6 (checksix.com) in public records. Edge & Hosting: Cloudflare. Application: jQuery, Google Fonts and Vimeo. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: WordPress, Google Ads and Yoast SEO. Company Ops: Microsoft 365, reCAPTCHA and SendGrid. Last checked October 16, 2026.

### What CRM does Check-6 use?

Check-6 uses HubSpot for its CRM, alongside Zoho and ZoomInfo, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot. HubSpot is used by 92,029 companies runsonwhat tracks.

### What email provider does Check-6 use?

Check-6 uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 701,682 companies runsonwhat tracks.

### What analytics tools does Check-6 use?

Check-6 uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on checksix.com. Google Analytics is used by 851,982 companies runsonwhat tracks.

### What is Check-6's website built with?

Check-6 uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on checksix.com. WordPress is used by 582,033 companies runsonwhat tracks.

### What does Check-6 use for login and identity?

Check-6 uses Auth0 for sign-in and identity, according to runsonwhat (October 2026). runsonwhat found Auth0 through a subdomain that points at Auth0 and configuration files. Auth0 is used by 5,490 companies runsonwhat tracks.

### Does Check-6 use jQuery?

Yes. runsonwhat found jQuery at Check-6 through jQuery code on checksix.com. jQuery is a Frontend tool used by 896,876 companies runsonwhat tracks.

### How does runsonwhat know what Check-6 uses?

runsonwhat reads public records only. Of the 21 tools at Check-6, 12 were found through code on checksix.com, 4 through DNS records, 3 through email records and 2 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and checksix.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/checksix.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.