# Stamps.com

We have not found a subprocessor list published by Stamps.com. We monitor 3 of its documents, which we last checked on 2026-11-11.

Stamps.com (stamps.com): subprocessors, data processing agreement, security documents and changes, as monitored by Third Party Index.

- Page: https://thirdpartyindex.com/vendors/stamps-com
- Documents last verified: 2026-11-11
- Transparency rating: 25/100 (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 12/12; Trust center 0/8 (not found); Privacy policy 0/6 (not found); 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; 0 tracked vendors rely on it directly, 0 within two hops, 0 within three
- Cite as: Stamps.com, Third Party Index, https://thirdpartyindex.com/vendors/stamps-com (data CC BY 4.0)

## Documents

| Document | URL | Last verified | Last changed |
|---|---|---|---|
| Data processing addendum | https://www.shipstationglobal.com/legal/dpa/ | 2026-11-11 | 2026-09-22 |
| Terms | https://www.stamps.com/conditions/ | 2026-11-11 | 2026-11-09 |
| Status page | https://status.stamps.com/ | 2026-11-11 | 2026-11-11 |

## Subprocessors (0)

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

## Web Technologies

Stamps.com's homepage made 255 requests to 42 domains, 21 services controlled by another company, and 6 domains not identified. Loaded on 2026-10-12 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.

21 third parties by category: Advertising 9 (Google Cloud, The Trade Desk, Inc., Microsoft, Podscribe, Spotify AB, Reddit, Inc.; reviewed: AdsWizz Inc., ArtsAI; usually detected as Advertising: Magnite, Inc.); Analytics 6 (HubSpot, LinkedIn, Magellan AI, Meta, Quora; usually detected as Analytics: LogRocket); CDN 2 (UNPKG, jsDelivr); Marketing automation 1 (usually detected as Marketing automation: Adobe); A/B Testing 1 (Optimizely); Cookie compliance 1 (OneTrust); Unclassified 1 (addShoppers, Inc.). 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 (21)

- Google Cloud: 20 requests to doubleclick.net, google.com, googletagmanager.com; DoubleClick Floodlight, Google Tag Manager
- OneTrust: 12 requests to cookielaw.org, onetrust.com; OneTrust
- HubSpot: 9 requests to hubspot.com, hs-analytics.net, hs-banner.com, hs-scripts.com, hsforms.com, usemessages.com; HubSpot, HubSpot Analytics, HubSpot Chat
- The Trade Desk, Inc.: 8 requests to adsrvr.org; theTradeDesk
- LinkedIn: 4 requests to licdn.com, linkedin.com; Linkedin Insight Tag
- Magellan AI: 4 requests to mgln.ai; Magellan AI
- Meta: 4 requests to facebook.net, capi-automation.s3.us-east-2.amazonaws.com, facebook.com; Facebook Pixel 2.9.419
- Optimizely: 4 requests to optimizely.com; Optimizely
- UNPKG: 4 requests to unpkg.com; Unpkg
- Microsoft: 3 requests to bing.com; Microsoft Advertising
- Podscribe: 3 requests to podscribe.com, d34r8q7sht0t9k.cloudfront.net; Podscribe
- Spotify AB: 3 requests to spotify.com, pdst.fm; Podsights, Spotify Pixel
- Adobe: 2 requests to demdex.net
- AdsWizz Inc.: 2 requests to adswizz.com
- LogRocket: 2 requests to lgrckt-in.com
- Quora: 2 requests to quora.com; Quora Pixel
- Reddit, Inc.: 2 requests to reddit.com, redditstatic.com; Reddit Ads
- jsDelivr: 2 requests to jsdelivr.net; jsDelivr
- ArtsAI: 1 request to arttrk.com
- Magnite, Inc.: 1 request to rubiconproject.com
- addShoppers, Inc.: 1 request to safeopt.com

### Unknown (6)

Domains not identified yet: ziddex.com, shop.pe, d2mjzob2nc713b.cloudfront.net, hrzn-nxt.com, addshoppers.s3.amazonaws.com, unichn.com

### First party (1)

- Stamps.com: 145 requests to stamps.com; Adobe Audience Manager, Cloudflare, Google Analytics, Gutenberg, HSTS, HTTP/3, Kadence WP Blocks, LogRocket, MySQL, Open Graph, PHP, Priority Hints, RSS, ResolvePay, Segment 1.84.3, Snowplow Analytics, Swiper, WP Engine, WordPress, WordPress Block Editor, Yoast SEO 28.6, Yoast SEO Premium 19.1, core-js 3.32.2, jQuery 3.7.1, jQuery Migrate 3.4.1, jQuery UI 1.13.3

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

## Subprocessor of (0)

No tracked vendor lists it.

## Service status

Incidents it reported on its own status page.

- Last 90 days: 10 reported incidents (0 major or critical, 5 minor, 5 with no impact stated)
- Typical time to resolve: 4 h 20 min
- Status page last read: 2026-11-12
- Its status page says now: Partially Degraded Service (affected: Stamps.com Software (Printing Postage Using our Windows Application): degraded performance)
- Under way: Issues Printing Postage in DAZzle (minor), since 2026-11-10 21:51 UTC
- Under way: Important Change: DDU Shipments to Germany No Longer Accepted (no impact stated), since 2026-10-27 21:57 UTC
- 2026-11-10: Issues Printing Postage in DAZzle (minor)
- 2026-10-27: Important Change: DDU Shipments to Germany No Longer Accepted (no impact stated)
- 2026-10-23: We are currently experiencing technical difficulties printing envelopes with Stamps Classic Software (minor)
- 2026-10-22: Issues Printing Postage (minor)
- 2026-10-20: Order Import Delays With Ebay Store (minor)
- 2026-10-20: Unexpected technical problem printing postage with FedEx (no impact stated)
- 2026-09-30: USPS Dimension Requirements (no impact stated)
- 2026-09-22: Issues Generating Rates for Some Services Through Windows Clients (no impact stated)

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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