How are counterfeit and prohibited listings detected?

Listings are scanned as they are submitted. Images, titles and descriptions are assessed together, so a listing that only looks suspicious when the photo and the copy are read as one is still caught. High-confidence matches are rejected at the point of listing, and borderline ones are held for review rather than published and pulled later.

How do you handle repeat-offender sellers?

Moderators can act on the account, not only the listing. When reviewing a case they see that seller's history, including the ratio of removals to total cases, and can suspend or ban rather than remove one item at a time. Confirmed cases can be fed back as examples, so sellers running the same pattern are found earlier next time.

What happens to a listing while it is under review?

That is yours to set. A listing can stay live while the case is open, be hidden pending a decision, or be blocked from publishing until it has been reviewed. Thresholds decide which path each listing takes, so low-risk items are not held up while genuinely high-risk ones never reach buyers.

How does moderation cope with seasonal spikes?

Automated scanning scales with your volume, so a peak does not create a review backlog on its own. The constraint is human review, and you control that with thresholds: widening the band that is actioned automatically sends fewer borderline cases to people during a surge. AI agents can also work the review queues alongside your team.

Do you offer age verification?

Yes. We offer age verification services. We can apply age estimation algorithms and also integrate end-to-end age and identity verification providers.

What languages do you cover?

We currently process 100 languages natively and we can support every language through translation.

Marketplace Content Moderation

Keep buyers and sellers safe with AI

Prevent fraud, spam and scams from reaching your online marketplace.

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Fraudulent sellers put your customers, your reputation - at risk

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Online marketplaces face constant threats from fake or poor quality product listings, fraudulent sellers and outright scams. These risks don’t just frustrate buyers - they undermine trust in your platform, expose customers to real harm and ultimately impact growth.
Give buyers and sellers confidence that what they see is authentic and safe. Protect your reputation, with moderation solutions built for online marketplaces.

54%

of consumers said they encountered fraudulent or suspicious items on the Internet

Benefits

Give buyers confidence in every transaction

Checkstep’s AI platform protects your marketplace from fraud, fake listings and scams at scale.

Real-time decisions

With sub-50 millisecond latency, Checkstep processes and reviews listings in real-time. An 8x reduction in moderation time helps keep buyers safe 24/7.

Counterfeit and fraud detection

Image similarity, metadata consistency and seller reputation signals catch counterfeits before your buyers do. Up to 99% accuracy.

Compliance first

Go beyond basic moderation with policies tailored for product compliance - detect prohibited items like restricted knives, controlled chemicals or forged documents alongside other harmful content.

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The go-to platform for product compliance and marketplace safety

Our platform has been designed with the unique challenges of online marketplace moderation and compliance in mind.

Automate moderation to let human moderators focus on what matters most

Send ‘suspicious content’ to our sophisticated AI reasoning model, Advanced ModBot, to take decisions on content. Updates to your policies are immediately learned by the bot. Keep humans in the loop and allow the bot to escalate when it’s not sure.

Streamline case management - close flags faster

Manage flagged content in one central place with full visibility into violations. Case management gives your team clear context, policy alignment and enforcement options - review, escalate, or resolve cases quickly and confidently.

Automate DSA reporting through direct EU Commission integration

Our technology-forward approach allows you to create custom models to detect what matters to your marketplace - in a matter of minutes. Gone is the need to wait months for a machine learning team to train a model from scratch.

Access leading compliance intelligence and integrations

Stay ahead of evolving compliance requirements with our intelligence reporting, giving you early insight into regulatory changes. Our direct API integration with the EU Commission automates DSA reporting, reducing manual effort and ensuring your marketplace remains compliant at scale.

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FAQs

Most frequently asked questions about Checkstep marketplaces

Learn more about our AI content moderation platform

How are counterfeit and prohibited listings detected?

Listings are scanned as they are submitted. Images, titles and descriptions are assessed together, so a listing that only looks suspicious when the photo and the copy are read as one is still caught. High-confidence matches are rejected at the point of listing, and borderline ones are held for review rather than published and pulled later.
How do you handle repeat-offender sellers?

Moderators can act on the account, not only the listing. When reviewing a case they see that seller's history, including the ratio of removals to total cases, and can suspend or ban rather than remove one item at a time. Confirmed cases can be fed back as examples, so sellers running the same pattern are found earlier next time.
What happens to a listing while it is under review?

That is yours to set. A listing can stay live while the case is open, be hidden pending a decision, or be blocked from publishing until it has been reviewed. Thresholds decide which path each listing takes, so low-risk items are not held up while genuinely high-risk ones never reach buyers.
How does moderation cope with seasonal spikes?

Automated scanning scales with your volume, so a peak does not create a review backlog on its own. The constraint is human review, and you control that with thresholds: widening the band that is actioned automatically sends fewer borderline cases to people during a surge. AI agents can also work the review queues alongside your team.
Do you offer age verification?

Yes. We offer age verification services. We can apply age estimation algorithms and also integrate end-to-end age and identity verification providers.
What languages do you cover?

We currently process 100 languages natively and we can support every language through translation.