---
title: "Ad Exchanges platforms"
date: 2026-02-14
source: "https://telegra.ph/Ad-Exchanges-platforms-02-14"
tags:
  - "telegraph"
---


**Google AdX / DoubleClick**

(`securepubads.g.doubleclick.net`, `g.doubleclick.net`)

**Mantis Intelligence (Reach PLC’s internal SSP)**

(`mantis-intelligence.com`, `mantishydra.mantis-awx.com`)

**Amazon Publisher Services (APS)**

Indirectly referenced via Reach’s header bidding setup

(APS endpoints often hidden behind script loaders)

**Index Exchange**

Reach PLC uses Index; your log shows related telemetry endpoints

**OpenX**

Not directly visible in your log, but Reach PLC’s header bidding config includes OpenX

**PubMatic**

Same as above — part of Reach PLC’s standard bidder chain

**Magnite (Rubicon Project)**

Also part of Reach PLC’s standard bidder chain

## These are typically loaded dynamically via Google Tag Manager or Prebid.js:

- Xandr (Microsoft)
- TripleLift
- Yahoo Exchange

A website, for example may use **Prebid.js**, which loads bidders dynamically — meaning the actual exchanges are often hidden behind script bundles.

## Which of these Brave blocks

Brave blocks **third‑party trackers**, but not**first‑party telemetry**.

Here’s the breakdown:

## Exchange / Tracker     Brave  Blocks?      Why

**Google AdX / DoubleClick              Yes**Known cross‑site tracker**Index Exchange                             Mostly**Blocklists catch most endpoints**OpenX                                          Yes**Known tracker**PubMatic                                     Yes**Known tracker**Magnite                                       Yes**Known tracker**XandrYes**Known tracker**TripleLift                                  Yes**Known tracker**Yahoo DSP                                    Mostly**Some endpoints slip through**Amazon Publisher Services           Partially**APS uses server‑side bidding**Mantis Intelligence (Reach PLC)  No**First‑party to DailyRecord**A blocklist that kills RTB entirely**

Here’s a **clean, surgical blocklist** that shuts down RTB at the root.

You can paste this into:

- Pi‑hole
- NextDNS
- AdGuard Home
- uBlock Origin Lite --> (My Filters)

## **Core RTB Kill List**

Code

```
doubleclick.net
googlesyndication.com
googleadservices.com
g.doubleclick.net
securepubads.g.doubleclick.net
adnxs.com
appnexus.com
rubiconproject.com
pubmatic.com
openx.net
openx.com
indexww.com
criteo.com
criteo.net
adsrvr.org
serving-sys.com
mathtag.com
yieldmo.com
taboola.com
outbrain.com
```

## **Each bidder uses the fingerprint to:**

- identify you
- match you to previous browsing
- determine your interests
- estimate your value
- decide how much to bid

## **Even losing bidders keep the fingerprint**

This is the part regulators hate.

You don’t just share your fingerprint with the winner —

you share it with **every bidder**.

A single page load can broadcast your fingerprint to **50–200 companies**.

## **Fingerprints are stored and cross‑referenced**

Ad‑tech companies build:

- behavioral profiles
- interest graphs
- demographic predictions
- purchase intent models

All without cookies.