# What does GRKB - Certified Public Accountants use?

GRKB - Certified Public Accountants (grkb.com) shows public evidence of 10 tools, according to runsonwhat (last checked 2026-10-20).

- Industry: Accounting
- Size: 11–50 employees
- Based in: Worcester, United States
- Founded: 1956
- LinkedIn: https://www.linkedin.com/company/greenberg-rosenblatt-kull-&-bitsoli-p-c-

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [GoDaddy](https://www.runsonwhat.com/reverse/godaddy) | DNS | DNS records |  |
| [Fastly](https://www.runsonwhat.com/reverse/fastly) | CDN & Edge | DNS records, Website code |  |
| [Fly.io](https://www.runsonwhat.com/reverse/fly) | Hosting & Cloud | Website code |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code |  |
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records |  |
| [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code |  |
| [AppRiver](https://www.runsonwhat.com/reverse/appriver) | Security & Compliance | Email records |  |

## FAQ

### What tools does GRKB - Certified Public Accountants use?

As of October 2026, runsonwhat has found 10 tools at GRKB - Certified Public Accountants (grkb.com) in public records. Edge & Hosting: GoDaddy, Fastly and Fly.io. Application: jQuery. Go-to-market: WordPress and Yoast SEO. Company Ops: Microsoft 365, reCAPTCHA and AppRiver. Last checked October 20, 2026.

### What cloud does GRKB - Certified Public Accountants run on?

GRKB - Certified Public Accountants uses Fly.io for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Fly.io through Fly.io code on grkb.com. Fly.io is used by 5,023 companies runsonwhat tracks.

### What email provider does GRKB - Certified Public Accountants use?

GRKB - Certified Public Accountants uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 716,411 companies runsonwhat tracks.

### What is GRKB - Certified Public Accountants's website built with?

GRKB - Certified Public Accountants uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on grkb.com. WordPress is used by 601,985 companies runsonwhat tracks.

### Does GRKB - Certified Public Accountants use jQuery?

Yes. runsonwhat found jQuery at GRKB - Certified Public Accountants through jQuery code on grkb.com. jQuery is a Frontend tool used by 922,940 companies runsonwhat tracks.

### How does runsonwhat know what GRKB - Certified Public Accountants uses?

runsonwhat reads public records only. Of the 10 tools at GRKB - Certified Public Accountants, 5 were found through code on grkb.com, 3 through DNS records and 2 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and grkb.com about monthly.


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