Supply-Side Platforms (SSP)

Index Exchange vs Sovrn

Compare Index Exchange and Sovrn side-by-side. See feature differences and pricing in the Supply-Side Platforms (SSP) category.

Index Exchange

by Index Exchange

No reviews yet

Pricing: Rates not public. Index Exchange takes one fee on each transaction, a dynamic take rate that varies by auction; terms are agreed with its sales team.

Index Exchange is a supply-side platform (SSP) where publishers sell web, app and streaming TV ads by auction or deal, paid through one fee per transaction.

9 /17 features Full profile

Sovrn

by Sovrn

No reviews yet

Pricing: No cost to sign up. Publishers earn a share of ad spend, paid monthly on net terms above a minimum balance; bundled ad management carries a usage-based fee.

Sovrn is an independent supply-side platform for web, app and CTV publishers, pairing its Ad Exchange with Signal floor tools and Commerce affiliate software.

9 /17 features Full profile

Feature Comparison

Supply-Side Platforms (SSP) features side-by-side

Feature	Index Exchange 9/17 features	Sovrn 9/17 features
Header bidding wrapper support Integrates as a bidder in an open-source header bidding wrapper or supplies its own wrapper.	Yes	Yes
Server-side header bidding Runs the header auction on the server to reduce page latency and browser load.	No	No
Open auction and private marketplace deals Sells inventory through open real-time bidding and packages it into private marketplace deals.	Yes	Yes
Programmatic guaranteed deals Fixed-price reserved deals executed programmatically with a buyer's DSP.	Yes	No
Price floor management Sets static or dynamic floor prices per placement, buyer, geo or device.	No	Yes
Video, CTV and audio inventory support Sells in-stream video, CTV and audio impressions, not only display banners.	No	Yes
Mobile app inventory monetization Sells in-app impressions through an SDK or an app-ads.txt supported integration.	Yes	Yes
Ad quality and malvertising blocking Scans creatives and blocks malware, forced redirects or disallowed categories before serving.	Yes	No
Demand partner performance reporting Reports bid rate, win rate and CPM per buyer or DSP so demand can be compared.	No	Yes
Yield analytics by placement Reports fill rate, eCPM and revenue by ad unit, geo, device and demand source.	No	No
Curated marketplace packages Bundles inventory with data or context into packages that buyers activate by deal ID.	Yes	Yes
Publisher first-party data in the bid stream Passes publisher segments or IDs to buyers in bid requests for targeting.	Yes	No
ads.txt and sellers.json support Publishes authorized seller declarations so buyers can verify the supply path.	Yes	Yes
Published net payment terms States net payment days and the minimum payout on its site or in the publisher agreement.	No	Yes
Log-level auction data for publishers Exports impression-level auction logs so publishers can audit bids and clearing prices.	Yes	No
Invalid traffic filtering for publishers Blocks bot impressions before auction using an accredited invalid traffic partner.	No	No
Transparent take rate Discloses its fee as a fixed share of media cost on its site or in the publisher agreement.	No	No
Overall Rating	No reviews yet	No reviews yet

Index Exchange 9/17 features

Header bidding wrapper support: Yes
Server-side header bidding: No
Open auction and private marketplace deals: Yes
Programmatic guaranteed deals: Yes
Price floor management: No
Video, CTV and audio inventory support: No
Mobile app inventory monetization: Yes
Ad quality and malvertising blocking: Yes
Demand partner performance reporting: No
Yield analytics by placement: No
Curated marketplace packages: Yes
Publisher first-party data in the bid stream: Yes
ads.txt and sellers.json support: Yes
Published net payment terms: No
Log-level auction data for publishers: Yes
Invalid traffic filtering for publishers: No
Transparent take rate: No

No reviews yet

Sovrn 9/17 features

Header bidding wrapper support: Yes
Server-side header bidding: No
Open auction and private marketplace deals: Yes
Programmatic guaranteed deals: No
Price floor management: Yes
Video, CTV and audio inventory support: Yes
Mobile app inventory monetization: Yes
Ad quality and malvertising blocking: No
Demand partner performance reporting: Yes
Yield analytics by placement: No
Curated marketplace packages: Yes
Publisher first-party data in the bid stream: No
ads.txt and sellers.json support: Yes
Published net payment terms: Yes
Log-level auction data for publishers: No
Invalid traffic filtering for publishers: No
Transparent take rate: No

No reviews yet

Pricing

Index Exchange

Rates not public. Index Exchange takes one fee on each transaction, a dynamic take rate that varies by auction; terms are agreed with its sales team.

See all plans

Sovrn

No cost to sign up. Publishers earn a share of ad spend, paid monthly on net terms above a minimum balance; bundled ad management carries a usage-based fee.

See all plans

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