Best CMP for Publishers in 2026: 10 Consent Platforms Ranked and Scored

Sourcepoint is the best consent management platform for publishers in 2026, scoring 4.4 on our publishers-fit evaluation. Publishers running programmatic ads need a CMP that signals IAB TCF and GPP, satisfies Google’s certified-CMP requirement, and maintains consent rates. Sourcepoint leads on all three.

We scored 10 platforms by re-weighting our methodology for ad-supported publishers, with IAB TCF certification and GPP signaling as decisive factors.

Below: a score-ranked quick list, a comparison table, and a scored section per platform.

Disclosure: Consently publishes this guide and appears at rank 10 of 10 by its publishers-fit score of 3.4.

What Are the Best CMPs for Publishers?

Sourcepoint, ConsentManager, and Didomi lead this list for publishers. Sourcepoint earns the top publishers-fit score of 4.4. It pairs a full IAB TCF 2.2 plus GPP stack with Google certification, market-leading CTV/OTT support, and consent-rate A/B testing. ConsentManager and Didomi follow closely at 4.3 each.

This list is ranked by the publishers' fit score. It re-weights our seven review categories for publishers and adds two decisive factors: IAB TCF plus GPP, and Google certification plus consent-rate optimization. Each product’s global review score is shown alongside, and ConsentManager and Didomi sit in a genuine tie at 4.3. Three ad-tech-native players (Sourcepoint, Didomi, InMobi CMP) are newly scored from public evidence because they do not yet have a full Consently review. How we score every CMP.

What Is a CMP for Publishers, and Why Do Publishers Need One?

A consent management platform for publishers is software that collects and records visitor consent for cookies and data processing. It then signals that consent to ad partners through the IAB Transparency and Consent Framework. For a publisher running programmatic advertising, a CMP is infrastructure, not a legal checkbox.

Publishers face a problem that general websites do not. Google requires a consent management platform certified under its CMP Partner program for any publisher serving personalized ads in the EEA, UK, or Switzerland.

This applies to AdSense, Ad Manager, and AdMob, and the CMP must integrate with IAB TCF. A banner that collects a yes/no tick but does not pass a valid TC String to the ad server means lost addressable revenue.

Consent rate compounds the stakes. A publisher with a 40 percent opt-in rate monetizes 40 percent of its audience addressably. A CMP that lifts that rate to 65 percent through better UX or an A/B-tested banner turns a compliance cost into a revenue driver. That calculus explains why the top picks here all offer consent-rate tooling, and why ad-tech-native CMPs dominate the rankings.

What Should Publishers Look for in a CMP?

Publishers should prioritize five things. They are IAB TCF 2.2 plus the GPP, a Google-certified CMP tier, consent-rate optimization, ad-stack and CTV/OTT integration, and reliable scanning with pre-consent tag blocking. These criteria separate a publisher-grade CMP from a general consent banner. For a broader look at the general-buyer market, see the best consent management platforms guide.

IAB TCF 2.2, GPP, and the MSPA

The IAB Transparency and Consent Framework (TCF) 2.2 transmits a visitor’s consent decision as a TC String to every vendor in a publisher’s ad stack. Without a valid TC String, compliant demand-side platforms drop the bid. IAB TCF 2.2 is mandatory for any publisher running programmatic ads in the EEA or UK. TCF 2.3 is the current operative version and is backward-compatible.

The IAB Global Privacy Platform (GPP) extends the same signaling logic to US-state privacy laws. It bundles CCPA, Virginia VCDPA, Colorado CPA, and others into a single consent string. The Multi-State Privacy Agreement (MSPA) layers on an industry self-regulatory framework for US programmatic.

It lets publishers certify compliance to ad-tech partners at scale. For a US ad-funded publisher, GPP and MSPA support is increasingly expected by programmatic partners.

Sourcepoint, ConsentManager, Didomi, Usercentrics, and OneTrust all support IAB TCF plus the GPP, and OneTrust adds the MSPA. Consently supports IAB TCF and Google Consent Mode v2, but it does not support the GPP or the MSPA. For more on the framework, see what IAB TCF is.

A Google-certified CMP for ad serving

Google’s certified CMP Partner program lists the tools that meet its requirements for collecting and passing consent to its ad products. To serve personalized ads in the EEA, UK, or Switzerland, a publisher must use a CMP from that list for AdSense, Ad Manager, or AdMob. The Google CMP Partners page maintains the current list. Google Ad Manager Help explains the requirement.

Gold is the highest tier, and certification carries three tiers: Gold, Silver, and Bronze. On Google’s current list, ConsentManager, Usercentrics, OneTrust, Cookiebot, Axeptio, and Didomi are Gold; Osano and Ketch are Silver; Sourcepoint is Bronze. All of them pass Google’s requirement to serve personalized ads. Consently supports Google Consent Mode v2 and Additional Consent (AC) v2. Its Google CMP Partner listing is still pending, though, so it does not appear on the certified list yet.

Consent-rate and ad-revenue optimization

A higher opt-in rate means more addressable impressions. Take a publisher on a 5 CPM programmatic floor. At a 40 percent opt-in versus a 65 percent opt-in, it gives up roughly 38 percent of addressable revenue. That gap is where consent-rate optimization tools earn their cost.

Three tools lead on this dimension. Sourcepoint offers a full A/B testing engine and a consent paywall (Consent-or-Pay), letting visitors choose between consenting to ads or paying for an ad-free experience.

ConsentManager embeds built-in A/B testing plus a machine-learning consent optimization layer. Axeptio publishes case-study consent rates of 72 to 84 percent, driven by its conversational banner design and Pay-or-Consent walls. Consently has none of these tools. Its banner is well-designed, but it offers no A/B testing or consent paywall.

Ad-stack and CTV/OTT integration

A publisher CMP must plug into the ad stack without friction. That means Prebid header-bidding wrappers and Google Ad Manager (GAM) certified integration. For media groups running video and streaming properties, it also means a certified CTV/OTT consent layer.

Sourcepoint leads on CTV/OTT. It is one of the few CMPs certified for connected TV and over-the-top media consent, handling 30 billion monthly touchpoints across web, app, and CTV. Usercentrics offers separate but integrated Web CMP, App CMP, and TV CMP products.

Both Didomi and ConsentManager provide mobile and CTV SDKs for publisher groups with app-based inventory. Consently is a web-script CMP with no native mobile SDK, no server-side consent option, and no CTV or OTT support.

Scanning, pre-consent tag blocking, and performance

Accurate scanning finds the tags that would fire before consent and maps them to the IAB GVL. Incomplete scanning means undeclared vendors, TCF audit failures, and regulator exposure. Pre-consent tag blocking ensures no ad, analytics, or tracking script fires until a valid TC String is generated.

Sourcepoint’s Diagnose tool provides accuracy-verified scanning with independent corroboration. DebugBear’s CMP performance comparison notes Sourcepoint as one of the lowest-INP consent tools. That matters for Core Web Vitals on ad-funded pages, where banner load affects Interaction to Next Paint.

Cookiebot’s scanner references a repository of over 13,000 cookie and tracker entries, the deepest database of any tool here. Consently’s scanner has improved significantly (roughly a 70 percent accuracy gain per recent notes) but is still maturing relative to these specialists.

How Do the Best Publisher CMPs Compare?

The table below compares all 10 CMPs on the attributes that matter most to publishers, sorted by publishers-fit score. “Score” is the global overall from our full review (Layer-1). “Publishers-fit” is the re-weighted composite this list is ranked by, and Google certification tiers are taken from Google’s current CMP Partners list.

Beyond these 10, publishers will also see other Google-certified CMPs in search results. The two most common are Ketch (Silver, rated 4.5 across 147 G2 reviews) and UniConsent (Gold, IAB TCF 2.3). Both are credible if your shortlist needs more options.

1. Sourcepoint: Best Overall CMP for Large Publishers and Ad-Funded Media

Sourcepoint is newly scored here from public evidence because it does not yet have a full Consently review. It earns 4.4 on our publishers-fit score, the top pick. It is the most publisher-grade CMP on this list, built from the ground up for the programmatic advertising stack. Sourcepoint is used by 10 out of 10 of the UK’s and 10 out of 10 of Germany’s top news publishers. Didomi acquired Sourcepoint in 2025 (Medium confidence; both CMPs are still sold as distinct products).

Key Features

Sourcepoint’s feature set is built around the programmatic ad stack and large-publisher scale.

Pros

The strengths below reflect Sourcepoint’s depth at high-traffic publisher scale.

Cons

The limitations below matter most to small and mid-size publishers.

Pricing

Pricing is custom, tiered by monthly page views and app users. There is no self-serve free tier, so contact Sourcepoint for a quote. This structure means it is realistically available only to mid-size and large publishers with a dedicated procurement process.

What Users Say

Independent ratings for Sourcepoint are positive but concentrated among ad-tech buyers.

“Sourcepoint is great but their UI is rubbish.” (r/adops, publisher switching CMPs)

rfp.wiki rates Sourcepoint 4.1 out of 5 across 60 reviews, compared to 2.4 out of 5 for InMobi CMP (formerly Quantcast Choice) across 6 reviews. TermsFeed (2026-06) lists its strengths as strong ad-tech integration, built-in consent paywall tools, and analytics and testing. Its noted weaknesses are enterprise-focused pricing and a steep learning curve.

2. ConsentManager: Best Certified Ad-Tech CMP With Built-In Consent Optimization

ConsentManager scores 3.9 out of 5 globally and 4.3 on our publishers-fit score, in a tie with Didomi for the highest composite. It is the highest-scoring product that has a full Consently review, and a registered IAB Europe CMP (ID 31). ConsentManager is the strongest pick for a mid-market publisher that wants Gold-tier certification and built-in A/B consent optimization. It delivers both on a managed self-serve entry tier, without Sourcepoint’s enterprise pricing.

Key Features

ConsentManager pairs deep TCF and GPP certification with consent-rate tooling at a self-serve price.

Pros

ConsentManager’s strengths center on certified ad-tech depth at a mid-market price.

Cons

The limitations below mostly affect lower-tier buyers and very high-traffic publishers.

Pricing

ConsentManager’s entry pricing is among the most accessible here, but the meaningful publisher features require the EUR59 tier. Free covers 1 site and 3,000 views/month, and Starter is EUR23/mo (1 domain). Essential at EUR59/mo (3 domains) unlocks TCF and A/B, then Professional is EUR219/mo (20 domains) and Ultimate is custom.

What Users Say

ConsentManager’s reviews are positive on support and scanning, with a caveat for app publishers.

“Setup was surprisingly easy for a tool with this depth.” (G2 reviewer)

G2 reviewers praise ConsentManager’s support response times. Capterra reviewers note a harder app-SDK integration path for publishers with native mobile inventory. Community consensus around the Cookie Crawler is positive. Users report it “reliably finds tools other scanners miss.”

Read the ConsentManager review or compare Consently vs ConsentManager.

3. Didomi: Best for EU-First Publishers That Need CNIL-Grade TCF Control

Didomi is newly scored here from public evidence because it does not yet have a full Consently review. It earns 4.3 on our publishers-fit score, in a tie with ConsentManager. Didomi is the EU publisher market’s specialist. It is a TCF-first CMP with CNIL-aligned granularity, Gold-tier certification, and broad multi-region support for media groups headquartered in France, Germany, and the broader EU. Didomi acquired Sourcepoint in 2025 (Medium confidence; both CMPs remain available as distinct products).

Key Features

Didomi’s feature set centers on TCF-first workflows and the broader privacy lifecycle.

Pros

Didomi’s strengths suit EU-first media groups that need deep regulatory control.

Cons

The limitations below mostly affect smaller or non-EU publishers.

Pricing

Paid tiers start around $200/mo and rise to custom enterprise quotes. Contact Didomi for a publisher-specific quote.

What Users Say

Didomi’s independent reputation is strong, especially among EU-first publishers.

“Didomi’s TCF-first workflows are the key differentiator for EU-first publishers.” (Lokker CMP comparison)

G2 aggregates approximately 4.6 out of 5. The Didomi and Sourcepoint combination, following the 2025 acquisition, is increasingly cited as the most comprehensive publisher privacy group.

4. Axeptio: Best CMP for Publishers Who Treat the Banner as a Revenue Lever

Axeptio scores 4.0 out of 5 globally and 4.1 on our publishers-fit score. It is the pick for a publisher that wants to turn the consent banner from a compliance friction point into an opt-in optimization asset. Its conversational banner design and Pay-or-Consent paywall make it the most banner-forward tool on this list.

Key Features

Axeptio’s feature set is built around banner design and opt-in optimization.

Pros

Axeptio’s strengths center on the banner itself and a real opt-in optimization story.

Cons

The limitations below mostly affect multi-property publishers and those needing A/B testing.

Pricing

Axeptio’s per-domain model adds up for multi-property publishers. Free covers 200 visitors/month with no TCF, and Small at $29/mo (1 domain, 5,000 visitors) adds IAB TCF. Medium and Large tiers run up to $129/mo for 1 domain. Multi-domain coverage and A/B testing require the Enterprise tier, which is quote-only.

What Users Say

Axeptio’s reviews praise the banner and flag the per-domain pricing.

“The cleanest consent UI I’ve seen.” (G2 reviewer)

G2 reviewers praise Axeptio’s banner and opt-in rates. Capterra reviewers consistently flag per-domain pricing as a frustration for anyone running more than two or three sites. The Pay-or-Consent feature draws positive mentions from EU news publishers adapting to post-Schrems II consent economics.

Read the Axeptio review or explore Axeptio alternatives.

5. Usercentrics: Best Multi-Surface CMP for Web, App, and CTV Networks

Usercentrics scores 3.7 out of 5 globally and 4.1 on our publishers-fit score. It is the pick for a publisher group that runs a surface portfolio across website, mobile app, and connected TV. Such a group needs a single certified CMP stack to cover all three with IAB TCF and GPP, and Usercentrics provides it.

Key Features

Usercentrics covers multiple ad surfaces from one certified vendor.

Pros

Usercentrics’ strengths suit cross-surface publisher networks.

Cons

The limitations below center on billing mechanics and complexity.

Pricing

The free tier is functional for testing but too limited for live publisher traffic. The tiers are Free (1,000 sessions/month, 1 domain), Essential $8/mo, Plus $16/mo, Pro $34/mo (3 domains), Business $56/mo (10 domains), and Corporate (custom).

What Users Say

Usercentrics’ reviews are positive on the product and mixed on billing.

“Being able to manage multiple websites for our account is a big plus.” (G2 mid-market reviewer)

G2 mid-market reviewers value the multi-site management and call the pricing “flexible relative to the alternatives.” Trustpilot reviewers at 3.6 flag billing-related complaints after auto-upgrades. The net sentiment is positive on the product and mixed on the billing mechanics.

Read the Usercentrics review or compare Consently vs Usercentrics.

6. OneTrust: Best for Enterprise Media Groups That Need a Full Privacy Program

OneTrust scores 3.6 out of 5 globally and 4.0 on our publishers-fit score. Its global score is the lowest of any tool here with a review, dragged down almost entirely by its enterprise-only pricing. For a large media group that needs a CMP inside a complete privacy program (consent, DSAR, RoPA, vendor risk), it remains the market default.

Key Features

OneTrust pairs the deepest US-multistate stack with a full governance suite.

Pros

OneTrust’s strengths suit large media groups that need governance breadth.

Cons

The limitations below make it overkill and costly for smaller publishers.

Pricing

OneTrust pricing is custom and quote-only, with no trial or self-serve access. Entry-level contracts start at approximately $10,000 per year, scaling by domains, users, and modules.

What Users Say

OneTrust’s reviews praise the breadth and criticize the cost.

“The renewal repricing is a significant budget-planning problem for multi-year commitments.” (Gartner Peer Insights reviewer)

Gartner Peer Insights aggregates 4.1 out of 5 and highlights OneTrust’s breadth and governance depth. G2 reviewers praised the compliance coverage but criticized the cost and implementation complexity.

Read the OneTrust review or explore OneTrust alternatives.

7. Cookiebot: Best for Publishers Who Want Certified Automatic Scanning Depth

Cookiebot scores 4.0 out of 5 globally, the highest global score of any product on this list. Its publishers-fit score sits at 4.0, mid-pack, because it lacks native consent-rate optimization. For a publisher whose primary concern is certified scanning accuracy and a clean cookie declaration, Cookiebot is the strongest choice.

Key Features

Cookiebot’s feature set centers on certified, deep automatic scanning.

Pros

Cookiebot’s strengths center on scanning depth and reliability.

Cons

The limitations below mostly affect multi-property publishers and those needing optimization.

Pricing

Cookiebot prices per domain in euros, so costs multiply for multi-property publishers despite the accessible entry price. The tiers are Free (50 subpages, 1 domain), then EUR7/mo (Lite) up to EUR90/mo (Extra Large), each per domain. Automated daily scans add EUR99/mo on the free plan.

What Users Say

Cookiebot’s reviews praise the scanning and criticize the multi-domain billing.

“Scanning reliability and the Gold-tier certification are the standout strengths.” (G2 reviewer)

G2 averages 4.2 out of 5, with praise focused on scanning reliability and the Gold-tier certification. Trustpilot aggregates 3.4 out of 5, with negative reviews concentrated on multi-domain billing and unexpected auto-upgrade charges. Publishers praise the scanning and criticize the pricing model.

Read the Cookiebot review or explore Cookiebot alternatives.

8. Osano: Best for Publishers Who Want a CMP Inside a Broader Privacy Suite

Osano scores 3.9 out of 5 globally and 3.7 on our publishers-fit score. Its IAB TCF and ad-tech depth are lighter than the specialists above, which is why the composite drops. For a publisher that also needs data mapping, vendor risk management, and DSAR tooling inside one platform, Osano is a legitimate option. For pure programmatic ad-stack depth, the tools ranked above it are stronger.

Key Features

Osano’s feature set centers on a privacy suite with consent built in.

Pros

Osano’s strengths suit media organizations that want consent and privacy ops together.

Cons

The limitations below center on ad-tech depth and price.

Pricing

Osano pricing steps sharply from free to $199/mo with no intermediate tier. The tiers are Free Solo (1 domain, 5,000 visitors/month), Plus $199/mo (3 domains, 30,000 visitors), and Basic Privacy and Enterprise (custom).

What Users Say

Osano’s reviews praise the support and flag the price and complexity.

“Easy setup and genuinely responsive support.” (G2 reviewer)

G2 averages 4.5 out of 5, with strong praise for ease of setup and support quality. G2 reviewers also flag price and console complexity as the main objections. The support reputation is the strongest here, which matters for media organizations that cannot afford downtime during ad-sales periods.

Read the Osano review or compare Consently vs Osano.

9. InMobi CMP (formerly Quantcast Choice): Best Free CMP for Ad-Monetizing Publishers

InMobi CMP, formerly Quantcast Choice, is newly scored here from public evidence because it does not yet have a full Consently review. It earns 3.7 on our publishers-fit score. It is the strongest free pick for a publisher that needs IAB TCF and cannot budget for a paid tool. InMobi acquired Quantcast Choice in 2023 and relaunched it as InMobi CMP, after Quantcast pivoted to its Q+ AI advertising platform.

Key Features

InMobi CMP’s feature set is free and ad-monetization focused.

Pros

InMobi CMP’s strengths center on cost and TCF coverage.

Cons

The limitations below center on a thin track record and reliability gripes.

Pricing

InMobi CMP is free, with no paid tiers published. Contact InMobi for enterprise or high-traffic support options.

What Users Say

InMobi CMP’s reviews are thin and mixed, with specific reliability flags.

“A free alternative that supports IAB TCF v2.3 and Google CMP standards while helping publishers improve ad monetization.” (TermsFeed)

rfp.wiki rates InMobi CMP (then Quantcast Choice) at 2.4 out of 5 across 6 reviews. r/adops threads document a missing-vendor issue in the TC String and a CCPA handling complaint. Both are older posts that may not reflect the current product, but they are the most specific reliability data points available.

10. Consently: Best Budget All-in-One CMP for Small Publishers With Light Ad-Tech Needs

Consently scores 3.7 out of 5 globally and 3.4 on our publishers-fit score, last on this list. It is our own product, and we rank it here by the same publishers-fit method.

Consently has IAB TCF and Google Consent Mode v2. It does not have the GPP, the MSPA, a certified partner listing, or the consent-rate depth that the ad-tech-native tools above bring.

If you run programmatic advertising at any meaningful scale, choose Sourcepoint, ConsentManager, Didomi, Usercentrics, or OneTrust instead. Consently is honestly the weakest publisher and ad-tech CMP on this list.

Why Consently Fits Small Publishers

Consently’s honest fit is a small content site or blog. The profile is a site that runs Google Consent Mode v2 and AdSense. It needs a banner, an automated cookie scanner, and privacy policies in one cheap tool, and it does not run a full TCF/GPP programmatic stack.

A small publisher on AdSense needs to pass Google Consent Mode v2 signals, declare its cookies, and present a compliant banner. Consently does all three, on every plan, with flat multi-domain pricing and no per-domain billing surprises.

Its scanner auto-blocks pre-consent cookies and scripts, including third-party ad pixels, without manual configuration. All three policy generators (cookie policy, privacy policy, and terms of service) are included on every plan.

Consider a publisher budget under $200 per year covering up to five domains. At that price point, no other all-in-one tool includes the scanner, banner, consent logs, and all three policy generators. That is the niche Consently genuinely owns. It is breadth and price, not ad-tech depth.

Key Features

Consently bundles the consent essentials a small publisher needs into one flat-priced tool.

See every feature on every plan.

Best Use Cases for Publishers

Consently fits a few specific small-publisher scenarios.

For publishers with ad-tech stack requirements beyond AdSense, see Consently for publishers to understand exactly where the product’s limits are.

Pros

Consently’s strengths center on all-in-one breadth at a flat price.

Cons

The following are authentic current limitations. They are the main reason Consently ranks last on the publisher lens.

For the full picture, read the full Consently review.

Pricing

Consently uses flat annual pricing with no overage charges and no auto-upgrade. Page views are shared across all domains on a plan.

See Consently pricing for the full tier breakdown.

Start a free 14-day Consently trial, no card required. IAB TCF and Google Consent Mode v2 ship on every plan, with flat multi-domain pricing and EU hosting.

What Users Say

Consently’s reviews are positive but the independent base is still young.

“Clean, easy to use, and the auto-scanning saves me so much time.” (AppSumo reviewer)

AppSumo aggregates approximately 4.0 out of 5 across roughly 25 reviews. Positive reviews highlight the clean interface and the auto-scanning time savings.

The independent review base is young, with near-zero organic presence on G2, Capterra, or Reddit, and no independent publisher or ad-tech review base yet. Treat the AppSumo aggregate as directionally positive but thin relative to established CMPs.

What Is the Best CMP for Publishers?

Sourcepoint is the best CMP for publishers running a full programmatic ad stack. It earns the top publishers-fit score of 4.4, with full IAB TCF 2.2 plus GPP, Google certification, market-leading CTV/OTT, and A/B plus consent-paywall optimization. For a self-serve alternative with a full review and a certified ad-tech stack, ConsentManager (publishers-fit 4.3) is the strongest option. It pairs built-in A/B and ML consent optimization with pricing that starts at EUR59/mo.

By publisher need:

Cookiebot holds the highest global score here (4.0) but sits mid-pack at publishers-fit 4.0, because it lacks native consent-rate optimization. Sourcepoint and Didomi are newly scored from public evidence and do not yet have full Consently reviews.

For small publishers with light ad-tech needs, Consently (publishers-fit 3.4) is the best budget all-in-one pick. Picture a content site running Google Consent Mode v2 and AdSense, with no TCF/GPP programmatic stack.

It wants a banner, scanner, and policies in one cheap tool, and Consently covers those compliance needs cleanly. To start, see the Consently section above for the trial. For the broader CMP market beyond publishers, see the best cookie consent tools roundup.

FAQs

What is the best CMP for a publisher running programmatic ads?

Sourcepoint tops our publishers-fit ranking at 4.4. It pairs full IAB TCF 2.2 plus GPP with Google certification, CTV/OTT support, and a consent-rate A/B plus paywall engine. For a self-serve tier with the same TCF and GPP certification, ConsentManager (publishers-fit 4.3) is the best pick with a full Consently review. It starts at EUR59/mo for TCF plus A/B features.

Which consent management platforms support IAB TCF and GPP?

Sourcepoint, ConsentManager, Didomi, Usercentrics, and OneTrust all support IAB TCF plus the GPP, and OneTrust adds the MSPA. Axeptio supports TCF v2.3, though its GPP documentation is limited. Cookiebot supports TCF, with GPP sitting at the Usercentrics group level. Consently supports IAB TCF and Google Consent Mode v2, but does not support the GPP or the MSPA.

Do publishers have to use a Google-certified CMP?

Yes, if they serve personalized ads in the EEA, UK, or Switzerland through Google AdSense, Ad Manager, or AdMob. Google requires a certified CMP integrated with IAB TCF. Most tools on this list are Gold-tier, while Osano and Ketch are Silver and Sourcepoint is Bronze. Consently’s listing is still pending, so publishers with this requirement should use a certified alternative until it is confirmed.

What is the best free CMP for publishers?

InMobi CMP (formerly Quantcast Choice) is the strongest free option, with IAB TCF v2.3 and Google CMP standards. Its independent review base is weak, though (rfp.wiki 2.4 out of 5). ConsentManager, Usercentrics, and Cookiebot all offer free tiers, but those tiers have tight traffic or feature limits for live publisher traffic.

Does Consently work for publishers and ad-tech?

For light ad-tech, yes. Consently supports IAB TCF and Google Consent Mode v2, with a banner, automated scanner, and three policy generators in one tool starting at $99/yr. For programmatic ad-tech, no: it lacks the GPP, the MSPA, CTV/OTT support, and consent-rate A/B testing. A publisher running a programmatic ad stack or requiring a Google-certified CMP should choose ConsentManager, Sourcepoint, Usercentrics, or another certified tool ranked above Consently.

What is the MSPA, and which CMPs support it?

The MSPA (Multi-State Privacy Agreement) is the IAB’s US-state framework for signaling consent compliance across CCPA-style privacy laws in California, Virginia, Colorado, and other states. It lets publishers certify a single US-multistate signal to ad-tech partners rather than managing each state law separately. OneTrust and Sourcepoint are the clearest MSPA supporters here. Budget CMPs, including Consently, do not support the MSPA.

Can a CMP improve ad revenue and consent rates?

Yes. A higher opt-in rate means more addressable impressions and more addressable CPM. Sourcepoint, ConsentManager, and Axeptio offer A/B testing or a consent paywall (Pay-or-Consent) specifically to optimize consent rates. Axeptio cites documented case-study consent rates of 72 to 84 percent with its conversational banner. Sourcepoint’s experimentation engine is the most mature here, designed for large-publisher consent-rate testing programs.