# What does Sightline OS use?

Sightline OS (sightlineos.com) shows public evidence of 12 tools, according to runsonwhat (last checked 2026-10-18).

- Based in: New York, United States
- LinkedIn: https://www.linkedin.com/company/sightline-os

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Cloud](https://www.runsonwhat.com/reverse/gcp) | Hosting & Cloud | DNS records |  |
| [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | Custom domain, DNS verification records |  |

## 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 |
|---|---|---|---|
| [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 |  |
| [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Email records |  |
| [Squarespace](https://www.runsonwhat.com/reverse/squarespace) | Website & CMS | Custom domain, DNS records, Website code |  |
| [Apollo.io](https://www.runsonwhat.com/reverse/apollo) | Sales & CRM | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |
| [Postmark](https://www.runsonwhat.com/reverse/postmark) | Email Delivery | Email records |  |

## FAQ

### What tools does Sightline OS use?

As of October 2026, runsonwhat has found 12 tools at Sightline OS (sightlineos.com) in public records. Edge & Hosting: Google Cloud and Vercel. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: Google Ads, Meta Pixel and HubSpot. Company Ops: Google Workspace and Postmark. Last checked October 18, 2026.

### What cloud does Sightline OS run on?

Sightline OS uses Google Cloud for hosting and cloud infrastructure, alongside Vercel, according to runsonwhat (October 2026). runsonwhat found Google Cloud through DNS records that point at Google Cloud. Google Cloud is used by 75,726 companies runsonwhat tracks.

### What CRM does Sightline OS use?

Sightline OS uses HubSpot for its CRM, alongside Apollo.io, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot. HubSpot is used by 93,854 companies runsonwhat tracks.

### What email provider does Sightline OS use?

Sightline OS uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 402,296 companies runsonwhat tracks.

### What analytics tools does Sightline OS use?

Sightline OS uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on sightlineos.com. Google Analytics is used by 878,041 companies runsonwhat tracks.

### What is Sightline OS's website built with?

Sightline OS uses Squarespace for its website, according to runsonwhat (October 2026). runsonwhat found Squarespace through a subdomain that points at Squarespace and DNS records. Squarespace is used by 33,580 companies runsonwhat tracks.

### Does Sightline OS use Google Ads?

Yes. runsonwhat found Google Ads at Sightline OS through Google Ads code on sightlineos.com. Google Ads is a Ads & Pixels tool used by 496,977 companies runsonwhat tracks.

### How does runsonwhat know what Sightline OS uses?

runsonwhat reads public records only. Of the 12 tools at Sightline OS, 5 were found through code on sightlineos.com, 3 through email records, 2 through DNS 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 sightlineos.com about monthly.


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