# What does Fourth Tier Solutions Ltd use?

Fourth Tier Solutions Ltd (fourthtier.com) shows public evidence of 8 tools, according to runsonwhat (last checked 2026-10-29).

- Industry: Software
- Size: 11–50 employees
- Based in: Harpenden, United Kingdom
- Founded: 2000
- LinkedIn: https://www.linkedin.com/company/fourth-tier-solutions

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Fastly](https://www.runsonwhat.com/reverse/fastly) | CDN & Edge | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Wix](https://www.runsonwhat.com/reverse/wix) | Website & CMS | Custom domain, Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records |  |
| [Valimail](https://www.runsonwhat.com/reverse/valimail) | Security & Compliance | Email records |  |
| [MailerSend](https://www.runsonwhat.com/reverse/mailersend) | Email Delivery | Email records |  |

## FAQ

### What tools does Fourth Tier Solutions use?

As of November 2026, runsonwhat has found 8 tools at Fourth Tier Solutions (fourthtier.com) in public records. Edge & Hosting: Fastly. Data & Observability: Sentry. Go-to-market: Wix. Company Ops: Microsoft 365, Valimail and MailerSend. Last checked October 29, 2026.

### What email provider does Fourth Tier Solutions use?

Fourth Tier Solutions uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 720,816 companies runsonwhat tracks.

### What is Fourth Tier Solutions's website built with?

Fourth Tier Solutions uses Wix for its website, according to runsonwhat (November 2026). runsonwhat found Wix through a subdomain that points at Wix and code on fourthtier.com. Wix is used by 52,152 companies runsonwhat tracks.

### What monitoring tools does Fourth Tier Solutions use?

Fourth Tier Solutions uses Sentry for monitoring, according to runsonwhat (November 2026). runsonwhat found Sentry through Sentry code on fourthtier.com. Sentry is used by 80,057 companies runsonwhat tracks.

### Does Fourth Tier Solutions use Fastly?

Yes. runsonwhat found Fastly at Fourth Tier Solutions through Fastly code on fourthtier.com. Fastly is a CDN & Edge tool used by 60,914 companies runsonwhat tracks.

### How does runsonwhat know what Fourth Tier Solutions uses?

runsonwhat reads public records only. Of the 8 tools at Fourth Tier Solutions, 3 were found through code on fourthtier.com, 3 through email records, 1 through website configuration files 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 fourthtier.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/fourthtier.com (updated November 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.