# What does Mainstream use?

Mainstream (mainstream.rs) shows public evidence of 20 tools, according to runsonwhat (last checked 2026-10-16).

- Industry: IT Services
- Size: 51–200 employees
- Based in: Belgrade, Serbia
- Founded: 2005
- LinkedIn: https://www.linkedin.com/company/mainstreamrs

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Font Awesome](https://www.runsonwhat.com/reverse/fontawesome) | 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 |  |

## 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 |  |
| [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | Website code |  |
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |
| [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code |  |
| [Calendly](https://www.runsonwhat.com/reverse/calendly) | Sales & CRM | Website code |  |
| [Albacross](https://www.runsonwhat.com/reverse/albacross) | 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 |  |
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |
| [Cookiebot](https://www.runsonwhat.com/reverse/cookiebot) | Security & Compliance | 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 |  |
| [Recruitee](https://www.runsonwhat.com/reverse/recruitee) | People & HR | Custom domain |  |

## FAQ

### What tools does Mainstream use?

As of October 2026, runsonwhat has found 20 tools at Mainstream (mainstream.rs) in public records. Application: Font Awesome, Vimeo and YouTube. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: WordPress, Google Ads and Meta Pixel. Company Ops: Microsoft 365, Google Workspace and Cookiebot. Last checked October 16, 2026.

### What sales tools does Mainstream use?

The sales tools runsonwhat has found at Mainstream are Calendly and Albacross (October 2026); no CRM shows up in Mainstream's public records. runsonwhat found Calendly through Calendly code on mainstream.rs.

### What email provider does Mainstream use?

Mainstream uses Microsoft 365 for email and office software, alongside Google Workspace, 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 709,014 companies runsonwhat tracks.

### What analytics tools does Mainstream use?

Mainstream uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on mainstream.rs. Google Analytics is used by 873,852 companies runsonwhat tracks.

### What is Mainstream's website built with?

Mainstream uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on mainstream.rs. WordPress is used by 593,387 companies runsonwhat tracks.

### What does Mainstream use for hiring and HR?

Mainstream uses Recruitee for hiring and HR, according to runsonwhat (October 2026). runsonwhat found Recruitee through a subdomain that points at Recruitee. Recruitee is used by 842 companies runsonwhat tracks.

### Does Mainstream use Google Ads?

Yes. runsonwhat found Google Ads at Mainstream through Google Ads code on mainstream.rs. Google Ads is a Ads & Pixels tool used by 491,221 companies runsonwhat tracks.

### Which companies have a tech stack similar to Mainstream's?

The companies with the stacks most like Mainstream's are Icewarp India, Datashift, IceWarp and TechWolf, according to runsonwhat (October 2026). Each shares 9 to 11 tools with Mainstream, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Mainstream uses?

runsonwhat reads public records only. Of the 20 tools at Mainstream, 13 were found through code on mainstream.rs, 5 through DNS records, 1 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 mainstream.rs about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/mainstream.rs (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.