Solution
Catch referral fraud before the credit clears.
One user farms ten referral bonuses. A team seat gets cloned across three Gmail aliases. Tellr links the accounts by device, network plus behavior and flags the chain before payout.
{ "verdict": "block", "score": 0.94, "reasons": [ "device_cluster_id", "shared_canvas_hash" ], "signals": 267}
88%
Recall on linked account clusters during launch programs.
$0
Wasted on referral payouts that never had a chance.
267
Signals scored on every signup, invite, and seat add.
How it works
Three quick steps wired through one single API call.
Send Tellr the invite event.
Hit the check API on signup, on invite acceptance plus on seat upgrade. Same shape every time.
We cluster the accounts.
Device, TLS fingerprint, behavior cadence. Tellr returns a cluster ID along with the verdict.
Block payouts on suspect chains.
Wire the cluster ID into your referral pipeline. Hold the bonus, open a review and pay clean traffic.
Signals we score
Every dimension covered by every single check.
Linking
88 signals- device_cluster_id
- shared_canvas_hash
- shared_tls_fingerprint
- asn_history_overlap
- session_cookie_reuse
Plus 83 more in this group.
Behavior
90 signals- typing_cadence_match
- mouse_path_similarity
- plan_velocity_24h
- time_to_first_invite
- referral_chain_depth
Plus 85 more in this group.
Identity
89 signals- plus_alias_family
- normalized_email_match
- phone_carrier_match
- card_bin_repeat
- org_domain_anomaly
Plus 84 more in this group.
267 signals in total. Every one of them computed by Tellr and every one of them in the response.
What teams get
Built for the people who actually ship the product.
Cluster IDs you can ship today.
Every verdict comes with a stable cluster ID. Use it in queries or use it in joins, with no black box involved.
Built for modern invite flows.
Check the inviter, the invitee plus the seat add with the same call. You get three verdicts under one contract.
Audit any payout you make.
Every cluster decision is replayable. Defend the legit users and recover from the fraud.
Policies live per project.
Stricter on payouts and looser on free seats. You own the trade off.
Pricing
Pay per request. No seats. No feature tiers.
One signal set. One verdict format. Pick a plan by how much signup traffic you protect each month.
Starter
For early stage products validating signup quality on the way to product market fit.
50 checks per week included
Get started- 1,000 check API calls each month
- 267 signals on every verdict
- 7 day signal retention window
Starter includes
- Browser SDK plus REST API access
- Threat intel for Tor, cloud plus disposable email
- One project paired with one environment
Pro
Most popularFor growing SaaS teams running real trial flows day in and day out.
2,500 checks per month included
Get started- 2,500 check API calls each month
- Rules engine paired with shadow mode
- 30 day retention with webhooks included
Everything in Starter, plus
- Custom rules tested in shadow mode
- Signed webhooks streaming to billing or SIEM
- Up to five projects with role based access
Business
For scaled products that want dedicated infrastructure plus a real SLA on every verdict.
10,000 checks per month included
Get started- 10,000 check API calls each month
- Dedicated infrastructure plus SLA
- 12 month retention, bring your own storage
Everything in Pro, plus
- Single tenant deployment option
- SOC2 Type II report alongside a custom DPA
- Named CSM with 24/7 incident response
For custom enterprise solutions contact us now so we can scope volume, deployment plus SLA against your traffic.
Wire it up just once and sleep right through the next attack.
Free for 50 checks a week on the Starter plan, upgrade only when you need more.