# GreyNoise

[1 tracked vendor](https://thirdpartyindex.com/vendors/greynoise#used-by), [Prophet Security](https://thirdpartyindex.com/vendors/prophet-security), names GreyNoise as a subprocessor. We have not found a subprocessor list published by GreyNoise. We monitor 4 of its documents, which we last checked on 2026-11-11.

GreyNoise (greynoise.io): subprocessors, data processing agreement, security documents and changes, as monitored by Third Party Index.

- Page: https://thirdpartyindex.com/vendors/greynoise
- Documents last verified: 2026-11-11
- Transparency rating: 27/100 (how much it publishes, not how secure it is): Subprocessor list 0/30 (not found); Processing locations 0/8 (no list); Purposes 0/7 (no list); Data processing addendum 0/12 (not found); Trust center 8/8; Privacy policy 6/6; security.txt 0/6 (not found); Security page 0/5 (not found); Status page 5/5; Vulnerability disclosure 0/5 (not found); Pages still reachable 8/8
- Supply chain: relies on 0 tracked vendors directly, 0 within two hops, 0 within three; 1 tracked vendors rely on it directly, 1 within two hops, 1 within three
- Cite as: GreyNoise, Third Party Index, https://thirdpartyindex.com/vendors/greynoise (data CC BY 4.0)

## Documents

| Document | URL | Last verified | Last changed |
|---|---|---|---|
| Trust center | https://greynoise.io/security | 2026-11-11 | 2026-11-07 |
| Privacy policy | https://www.greynoise.io/privacy | 2026-11-11 | 2026-11-06 |
| Terms | https://www.greynoise.io/terms | 2026-11-11 | 2026-11-06 |
| Status page | https://status.greynoise.io/ | 2026-11-11 | 2026-11-06 |

## Subprocessors (0)

No subprocessor list has been found or read for this vendor.

## Web Technologies

GreyNoise's homepage made 215 requests to 40 domains, 20 services controlled by another company, and 1 domain not identified. Loaded on 2026-11-08 by a browser that accepted nothing; other visits may load more or less. What a page loads is not a list of who receives customer data.

20 third parties by category: Advertising 5 (Google Cloud, Reddit, Inc., X Corp.; reviewed: Eyeota; usually detected as Advertising: The Trade Desk, Inc.); Analytics 5 (HubSpot, Crazy Egg, LinkedIn; reviewed: Nielsen; usually detected as Analytics: Bombora); Marketing automation 3 (GetVector, Inc., Salesloft; usually detected as Marketing automation: Adobe); CDN 2 (jsDelivr, Cloudflare); Customer data platform 1 (reviewed: Lotame); JavaScript libraries 1 (Webflow); Miscellaneous 1 (reviewed: Yahoo); Security 1 (Spur); Widgets 1 (ShareThis). Each company that appears controlled by another organization is counted once, under the main category of the technologies detected from it on this homepage or, when none was, the category recorded from the company's own page (marked reviewed) or else the one it is usually detected as on other published homepages (marked as such); unclassified: none of these.

### Third parties (20)

- Webflow: 91 requests to website-files.com, d3e54v103j8qbb.cloudfront.net; Webflow 1.6.0, jQuery 3.5.1
- Google Cloud: 31 requests to gstatic.com, google.com, doubleclick.net, googletagmanager.com, google-analytics.com, ajax.googleapis.com, fonts.googleapis.com; DoubleClick Floodlight, Google Analytics, Google Font API, Google Hosted Libraries, Google Tag Manager
- Adobe: 19 requests to typekit.net
- Spur: 16 requests to mcl.io, spur.us; Spur Monocle
- HubSpot: 9 requests to hubspot.com, hs-analytics.net, hs-banner.com, hs-scripts.com, hsadspixel.net, hsforms.com, hubapi.com; HubSpot, HubSpot Analytics
- ShareThis: 7 requests to sharethis.com; ShareThis
- GetVector, Inc.: 6 requests to vector.co; Vector
- Crazy Egg: 4 requests to crazyegg.com; Crazy Egg
- jsDelivr: 4 requests to jsdelivr.net; Highlight.js, jsDelivr
- LinkedIn: 3 requests to linkedin.com, licdn.com; Linkedin Insight Tag
- Reddit, Inc.: 3 requests to reddit.com, redditstatic.com; Reddit Ads
- Salesloft: 3 requests to salesloft.com; Salesloft
- X Corp.: 3 requests to ads-twitter.com, t.co, twitter.com; Twitter Ads
- Bombora: 1 request to ml314.com
- Cloudflare: 1 request to cloudflare.com; cdnjs
- Eyeota: 1 request to eyeota.net
- Lotame: 1 request to crwdcntrl.net
- Nielsen: 1 request to exelator.com
- The Trade Desk, Inc.: 1 request to adsrvr.org
- Yahoo: 1 request to yahoo.com

### Unknown (1)

Domains not identified yet: cr-relay.com

### First party (1)

- GreyNoise: 7 requests to greynoise.io; Adobe Fonts 1.21.0, Cloudflare, GSAP 3.15.0, HSTS, HTTP/3, Open Graph, Priority Hints, Typekit 1.21.0, Webpack, core-js 3.49.0

11 tracked companies loaded by the homepage are not in GreyNoise's subprocessor list. A website can use a service without it processing customer data.

## Subprocessor of (1)

Tracked vendors whose own subprocessor lists name it, and what they say they use it for.

- [Prophet Security](https://thirdpartyindex.com/vendors/prophet-security.md): Advance notice – expected effective October 10, 2026. Identify IP addresses associated with internet-wide scanning and automated activity. Optional - Customer…

## Service status

Incidents it reported on its own status page.

- Last 90 days: 4 reported incidents (2 major or critical, 2 minor, 0 with no impact stated)
- Typical time to resolve: 2 h 22 min
- Status page last read: 2026-11-11
- 2026-10-28: Delayed Data Processing (major)
- 2026-10-09: Bulk Data Processing Delay (minor)
- 2026-09-14: Full System Outage (critical)
- 2026-09-13: Session Explorer processing delay (minor)
- 2026-08-07: API Outage (critical)
- 2026-06-16: Delayed Data Processing (minor)
- 2026-04-15: Intermittent IP Details Page Failures (major)
- 2026-03-10: Visualizer Errors (major)

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Third Party Index (https://thirdpartyindex.com) monitors vendors' public security and privacy documents and keeps each version as evidence. Data CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); vendors' own documents are theirs. API: https://thirdpartyindex.com/api