24smi

A8

A9

AccessTrade

Ad.Agio

Adblade

AdButler

ADITION

Ad Generation

Adhese

AdFox

Adman

AdmanMedia

AdOcean

AdReactor

AdSense

AdsNative

AdSpeed

AdSpirit

AdStir 320x50 banner

AdTech (1x1 fake image ad)

AdThrive 320x50 banner

AdThrive 300x250 banner

Ad Up Technology

Adventive

Adverline

Adverticum

AdvertServe

Affiliate-B

AMoAd banner

AMoAd native

AppNexus with JSON based configuration multi ad

Atomx

Bidtellect

brainy

Bringhub Mini-Storefront

CA A.J.A. Infeed

CA ProFit-X

Chargeads

Connatix

Content.ad Banner 320x50

Content.ad Banner 300x250

Content.ad Banner 300x250 2x2

Content.ad Banner 300x600

Content.ad Banner 300x600 5x2

Criteo Passback

Due to ad targeting, the slot might not load ad.

Criteo Standalone

Due to ad targeting, the slot might not load ad.

Criteo RTA

Due to ad targeting, the slot might not load ad.

CSA

Custom leaderboard

Custom square

Custom leaderboard with no slot specified

Cxense Display

Dable

Directadvert

DistroScale

DotAndAds masthead

DotAndAds 300x250 box

Doubleclick

Doubleclick with JSON based parameters

Doubleclick no ad

Doubleclick with overriden size

Doubleclick challenging ad

eADV

Engageya widget

E-Planning 320x50

Ezoic

FlexOneELEPHANT

FlexOneHARRIER

Felmat

Flite

fluct

Fusion

Geniee SSP

Giraff

GMOSSP 320x50 banner

GumGum 300x100 banner

Holder 300x250 banner

iBillboard 300x250 banner

I-Mobile 320x50 banner

Imedia

Index Exchange Header Tag

Industrybrains

InMobi

Innity

Kargo

Kiosked

Kixer

Ligatus

LockerDome

LOKA

MADS

MANTIS

Media Impact

Media.Net Header Bidder Tag

Media.Net Contextual Monetization Tag

Mediavine

Meg

MicroAd 320x50 banner

Mixpo

myWidget

Nativo

Navegg

It is common to see a no-fill ad in this example.

Nend

NETLETIX

Nokta

Open AdStream single ad

OpenX

See all OpenX examples

Outbrain widget

Plista responsive widget

polymorphicAds

popIn native ad

Postquare widget

PubExchange

Pubmine 300x250

PulsePoint Header Bidding 300x250

PulsePoint 300x250

Purch 300x250

Rambler&Co

Relap

Revcontent Responsive Tag

RevJet Tag

Rubicon Project Smart Tag

Rubicon Project FastLane Single Slot

Sharethrough

Sklik

SlimCut Media

SmartAdServer ad

smartclip

SMI2

sogou ad

Sortable ad

SOVRN

SpotX

SunMedia

Swoop

Taboola responsive widget

Teads

TripleLift

Weborama

Widespace Panorama Ad

Widespace Takeover Ad

Xlift native ad

Yahoo Display

YahooJP YDN

Yandex

Yengo

Yieldbot

YIELD ONE

Yieldmo

Yieldpro

ValueCommerce

Viralize

VMFive

Webediads

It's a private ad network with strict ad targeting, hence very common to see a no-fill.

ZEDO

ZergNet

Zucks