# Merriam-Webster

We have not found a subprocessor list published by Merriam-Webster. We monitor 4 of its documents, which we last checked on 2026-11-11.

Merriam-Webster (merriam-webster.com): subprocessors, data processing agreement, security documents and changes, as monitored by Third Party Index.

- Page: https://thirdpartyindex.com/vendors/merriam-webster
- Documents last verified: 2026-11-11
- Transparency rating: 32/100 (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 6/6; security.txt 6/6; Security page 0/5 (not found); Status page 0/5 (not found); 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: Merriam-Webster, Third Party Index, https://thirdpartyindex.com/vendors/merriam-webster (data CC BY 4.0)

## Documents

| Document | URL | Last verified | Last changed |
|---|---|---|---|
| Data processing addendum | https://www.merriam-webster.com:443/medical/DPA | 2026-11-11 | 2026-11-11 |
| Privacy policy | https://www.merriam-webster.com:443/dictionary/privacy | 2026-11-11 | 2026-11-11 |
| Terms | https://www.merriam-webster.com:443/dictionary/term | 2026-11-11 | 2026-11-11 |
| security.txt | https://merriam-webster.com/.well-known/security.txt | 2026-11-11 | 2026-09-21 |

## Subprocessors (0)

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

## Web Technologies

Merriam-Webster's homepage made 2,538 requests to 209 domains, 150 services controlled by another company, and 30 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.

150 third parties by category: Advertising 52 (Magnite, Inc., PubMatic, Google Cloud, Equativ, Epsilon, Monet Engine Inc (AdaptMX), TripleLift, Amazon, 33Across, Index Exchange Inc., Seedtag Advertising, S.L., CMI Marketing, Inc. d/b/a Raptive, ID5 Technology Ltd, Sparteo, GumGum, Inc., Teads; reviewed: Nexxen, OneTag Limited, BidSwitch GmbH, FreeWheel, OpenX, Criteo, Media.net Advertising FZ-LLC, Yieldmo, LoopMe Limited, Improve Digital, Nativo Inc., Blis Global Limited, Kargo, Tapad, Inc., Viant Technology, DeepIntent, MediaMath, AcuityAds Inc. (illumin), Bidtellect Inc, Exponential Interactive, Inc. (VDX.tv), Samsung Ads, Semasio GmbH, ADITION technologies (Virtual Minds GmbH), Clickagy, OnAudience Ltd; usually detected as Advertising: Xandr, The Trade Desk, Inc., Sovrn, StackAdapt, Adform, Basis Technologies (Basis; formerly Centro), Microsoft, Simpli.fi, Neustar, Inc. (TransUnion), Roku, Inc., AdRoll); Analytics 9 (Wingify, Meta; reviewed: Comscore, Nielsen; usually detected as Analytics: Baidu, Quantcast, Demandbase, LinkedIn, Bombora); Marketing automation 2 (reviewed: Zeta Global; usually detected as Marketing automation: Adobe); Cookie compliance 2 (LiveRamp; usually detected as Cookie compliance: InMobi); Customer data platform 1 (Lotame); Email 1 (LiveIntent); Feature management 1 (LaunchDarkly); Miscellaneous 1 (reviewed: Yahoo); Retargeting 1 (usually detected as Retargeting: RTB House); Security 1 (Confiant Inc.); Widgets 1 (usually detected as Widgets: Outbrain); Unclassified 78 (Eskimi, ADman Interactive S.L.U., M.D. Primis Technologies Ltd., Opera Software Ireland Limited (Opera), PulsePoint, Admatic GMBH, Rise (Risecodes), Media Force, Optable Technologies Inc., Sharethrough, Rich Audience, Adyoulike, Smaato, Sonobi, Vidazoo Ltd, AdTarget Medya A.Ş., Tappx, Disqus, Minute Media (Sportority UK Ltd), Copper6, Krush Media, LLC, Ogury Ltd, Adkernel, Assertive Yield B.V., Raptive, Intent IQ, NoBid Inc., AuDigent, Insticator Inc., OpenWeb, SmartyAds, SparkV International Inc, Whaleco Inc. (Temu), Adtelligent, Aniview, Cas.ai, Chocolate Platform (SilverPush Global Pte Ltd), Gamoshi Ltd, Smile Wanted, TrustedStack, Admixer EU GmbH, IQzone Inc, ViSTARS Agency, LLC, AdTheorent, Audigent, BidTheatre AB, Cadent, Connatix Native Exchange Inc., Datonics LLC, Hybrid Adtech GmbH, IQzone Inc., Impactify SARL, Intercept Interactive Inc. dba Undertone, Kueez Entertainment Ltd., Luna Media Group LLC, ProgrammaticX, RobustApps Ltd, The Ozone Project Limited, Adot, Appier, Appnerve, ArcSpan Technologies, Inc., Axis Corp LTD, Between Exchange, Consumable, Inc, Delta Projects AB, IQM Inc., Knorex, LoudEcho, Merkle, MobileFuse, Nexverse.ai, OTT Advisors, Pacvue, Reset Digital, SundaySky, YOC AG, iPROM). 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 (150)

- Magnite, Inc.: 212 requests to rubiconproject.com, springserve.com, tremorhub.com; Rubicon Project
- PubMatic: 137 requests to pubmatic.com; PubMatic
- Xandr: 82 requests to adnxs.com
- Nexxen: 79 requests to 1rx.io, turn.com, unrulymedia.com
- Google Cloud: 69 requests to doubleclick.net, googlesyndication.com, googletagmanager.com, google.com, 2mdn.net, gstatic.com; DoubleClick Ad Exchange (AdX), DoubleClick Campaign Manager (DCM), Google AdSense, Google Analytics, Google Publisher Tag, Google Tag Manager
- OneTag Limited: 67 requests to onetag-sys.com
- Equativ: 60 requests to smartadserver.com, sascdn.com; Smart Ad Server
- BidSwitch GmbH: 57 requests to bidswitch.net
- Epsilon: 54 requests to dotomi.com, fastclick.net; Dotomi
- Monet Engine Inc (AdaptMX): 50 requests to a-mo.net, amxrtb.com, a-mx.com, amx1.net; AdaptMX
- FreeWheel: 47 requests to fwmrm.net, bidr.io, stickyadstv.com
- OpenX: 47 requests to openx.net
- The Trade Desk, Inc.: 42 requests to adsrvr.org
- TripleLift: 41 requests to 3lift.com; TripleLift
- Amazon: 39 requests to amazon-adsystem.com; Amazon Advertising
- Eskimi: 39 requests to eskimi.com
- Sovrn: 39 requests to lijit.com
- ADman Interactive S.L.U.: 38 requests to admanmedia.com
- 33Across: 35 requests to 33across.com, tynt.com; 33Across
- M.D. Primis Technologies Ltd.: 34 requests to primis.tech
- Opera Software Ireland Limited (Opera): 34 requests to opera.com
- Index Exchange Inc.: 33 requests to casalemedia.com; Index Exchange
- PulsePoint: 32 requests to contextweb.com
- Admatic GMBH: 31 requests to pixad.com.tr
- Criteo: 29 requests to criteo.com
- Rise (Risecodes): 29 requests to yellowblue.io
- Media Force: 28 requests to mfadsrvr.com
- Seedtag Advertising, S.L.: 28 requests to seedtag.com; Seedtag
- CMI Marketing, Inc. d/b/a Raptive: 27 requests to adthrive.com; AdThrive, Raptive
- Media.net Advertising FZ-LLC: 27 requests to media.net
- RTB House: 25 requests to creativecdn.com
- StackAdapt: 25 requests to stackadapt.com
- Adform: 24 requests to adform.net
- Optable Technologies Inc.: 24 requests to optable.co
- Yieldmo: 23 requests to yieldmo.com
- Sharethrough: 22 requests to sharethrough.com
- ID5 Technology Ltd: 21 requests to id5-sync.com, eu-1-id5-sync.com; ID5
- Sparteo: 21 requests to sparteo.com, bricks-co.com; Sparteo
- Yahoo: 21 requests to yahoo.com
- Outbrain: 19 requests to outbrain.com, zemanta.com
- Rich Audience: 19 requests to richaudience.com
- Adyoulike: 18 requests to omnitagjs.com
- LiveRamp: 17 requests to rlcdn.com, privacymanager.io; LiveRamp PCM
- LoopMe Limited: 17 requests to loopme.me
- Smaato: 16 requests to smaato.net
- Sonobi: 16 requests to sonobi.com
- Vidazoo Ltd: 16 requests to cootlogix.com
- AdTarget Medya A.Ş.: 14 requests to adtarget.com.tr
- Tappx: 14 requests to tappx.com
- Disqus: 13 requests to disqus.com
- InMobi: 13 requests to inmobi.com
- Minute Media (Sportority UK Ltd): 13 requests to minutemedia-prebid.com
- Improve Digital: 12 requests to 360yield.com
- Basis Technologies (Basis; formerly Centro): 11 requests to sitescout.com
- Nativo Inc.: 11 requests to postrelease.com
- Copper6: 10 requests to copper6.com
- Krush Media, LLC: 10 requests to krushmedia.com
- LiveIntent: 10 requests to liadm.com; LiveIntent
- Ogury Ltd: 10 requests to presage.io
- Adkernel: 9 requests to adkernel.com
- Assertive Yield B.V.: 9 requests to ay.delivery
- Blis Global Limited: 9 requests to blismedia.com
- Raptive: 9 requests to raptive.com
- Wingify: 9 requests to visualwebsiteoptimizer.com; VWO
- Intent IQ: 8 requests to intentiq.com
- Kargo: 8 requests to kargo.com
- Microsoft: 8 requests to clarity.ms, bing.com
- NoBid Inc.: 8 requests to servenobid.com
- GumGum, Inc.: 7 requests to gumgum.com; GumGum
- Simpli.fi: 7 requests to simpli.fi
- AuDigent: 6 requests to ad.gt
- Baidu: 6 requests to mediagotechnology.com
- Insticator Inc.: 6 requests to ingage.tech
- Quantcast: 6 requests to quantserve.com
- Tapad, Inc.: 6 requests to tapad.com
- Zeta Global: 6 requests to rfihub.com
- Lotame: 5 requests to crwdcntrl.net; Lotame
- OpenWeb: 5 requests to spot.im
- SmartyAds: 5 requests to ck-ie.com
- SparkV International Inc: 5 requests to rtbwise.com
- Viant Technology: 5 requests to ipredictive.com
- Whaleco Inc. (Temu): 5 requests to temu.com
- Adobe: 4 requests to everesttech.net, demdex.net
- Adtelligent: 4 requests to adtelligent.com
- Aniview: 4 requests to aniview.com
- Cas.ai: 4 requests to thecas.xyz
- Chocolate Platform (SilverPush Global Pte Ltd): 4 requests to chocolateplatform.com
- DeepIntent: 4 requests to deepintent.com
- Gamoshi Ltd: 4 requests to gamoshi.io
- Smile Wanted: 4 requests to smilewanted.com
- TrustedStack: 4 requests to trustedstack.com
- Admixer EU GmbH: 3 requests to admixer.net
- Comscore: 3 requests to scorecardresearch.com
- Confiant Inc.: 3 requests to confiant-integrations.net, clarium.io; Confiant
- Demandbase: 3 requests to company-target.com
- IQzone Inc: 3 requests to iqzonertb.live
- LinkedIn: 3 requests to linkedin.com
- MediaMath: 3 requests to mathtag.com
- Meta: 3 requests to facebook.net, facebook.com; Facebook Pixel 2.9.419
- ViSTARS Agency, LLC: 3 requests to vistarsagency.com
- AcuityAds Inc. (illumin): 2 requests to acuityplatform.com
- AdTheorent: 2 requests to adentifi.com
- Audigent: 2 requests to hadronid.net
- BidTheatre AB: 2 requests to bidtheatre.com
- Bidtellect Inc: 2 requests to bttrack.com
- Bombora: 2 requests to ml314.com
- Cadent: 2 requests to cadent.com
- Connatix Native Exchange Inc.: 2 requests to connatix.com
- Datonics LLC: 2 requests to pro-market.net
- Exponential Interactive, Inc. (VDX.tv): 2 requests to tribalfusion.com
- Hybrid Adtech GmbH: 2 requests to hybrid.ai
- IQzone Inc.: 2 requests to iqzone.com
- Impactify SARL: 2 requests to impactify.media
- Intercept Interactive Inc. dba Undertone: 2 requests to undertone.com
- Kueez Entertainment Ltd.: 2 requests to kueezrtb.com
- LaunchDarkly: 2 requests to launchdarkly.com; LaunchDarkly
- Luna Media Group LLC: 2 requests to lunamedia.live
- Neustar, Inc. (TransUnion): 2 requests to agkn.com
- ProgrammaticX: 2 requests to programmaticx.ai
- RobustApps Ltd: 2 requests to rbstsystems.live
- Roku, Inc.: 2 requests to w55c.net
- Samsung Ads: 2 requests to adgrx.com
- Semasio GmbH: 2 requests to semasio.net
- Teads: 2 requests to teads.tv; Teads
- The Ozone Project Limited: 2 requests to the-ozone-project.com
- ADITION technologies (Virtual Minds GmbH): 1 request to adition.com
- AdRoll: 1 request to adroll.com
- Adot: 1 request to adotmob.com
- Appier: 1 request to appier.net
- Appnerve: 1 request to appnerve.net
- ArcSpan Technologies, Inc.: 1 request to p7cloud.net
- Axis Corp LTD: 1 request to axis-marketplace.com
- Between Exchange: 1 request to betweendigital.com
- Clickagy: 1 request to clickagy.com
- Consumable, Inc: 1 request to serverbid.com
- Delta Projects AB: 1 request to de17a.com
- IQM Inc.: 1 request to iqm.com
- Knorex: 1 request to brand-display.com
- LoudEcho: 1 request to loudecho.ai
- Merkle: 1 request to rkdms.com
- MobileFuse: 1 request to mobilefuse.com
- Nexverse.ai: 1 request to nexverse.ai
- Nielsen: 1 request to imrworldwide.com
- OTT Advisors: 1 request to ottadvisors.com
- OnAudience Ltd: 1 request to onaudience.com
- Pacvue: 1 request to pacvue.com
- Reset Digital: 1 request to resetdigital.co
- SundaySky: 1 request to sundaysky.com
- YOC AG: 1 request to visx.net
- iPROM: 1 request to iprom.net

### Affiliates (1)

- Encyclopaedia Britannica, Inc.: 8 requests to britannica.com

### Unknown (30)

Domains not identified yet: openwebmp.com, pmbmonetize.live, syncingbridge.com, ymmobi.com, plusoneads.com, rtb-oveeo.com, smartytouch.co, balance-x.com, cognitivlabs.com, mxptint.net, bfmio.com, example.com, imasdk.googleapis.com, measureadv.com, pghub.io, rtb.mx, s3.amazonaws.com, adtech.ink, advolve.io, colossusssp.com, ctnsnet.com, delivrdsp.ai, dxtech.ai, marphezis.com, media6degrees.com, raptivecdn.com, rtactivate.com, shb-sync.com, thrtle.com, tracookiepixel.xyz

### First party (1)

- Merriam-Webster: 89 requests to cdn-mw.com, merriam-webster.com, m-w.com; Amazon Web Services, Bootstrap 2, Cart Functionality, Digioh, JW Player, Lodash, Microsoft Clarity, Open Graph, OpenX, PWA, Plausible, Prebid 10.29.1, Primis, Priority Hints, Sentry, comScore, core-js 3.49.0, jQuery, lit-element 4.2.2, lit-html 3.3.3

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

## Subprocessor of (0)

No tracked vendor lists it.

## Security contact

From its security.txt (https://merriam-webster.com/.well-known/security.txt) ([evidence](https://thirdpartyindex.com/evidence/1102)):

- Contact: mailto:security@merriam-webster.com
- Languages: en-US
- No expiry date

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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
