What Trueguard does

Trueguard OÜ is a Tallinn, Estonia-headquartered SaaS company that operates a fraud detection and bot prevention platform aimed primarily at SaaS businesses fighting fake signups, bot registrations, and free-tier abuse. The platform combines browser device fingerprinting, JA4/JA4T TLS and TCP network fingerprinting, IP and residential-proxy intelligence (via Proxycheck), disposable-email detection, geolocation, and real-time risk scoring behind a single JavaScript snippet and REST API. A separate standalone Email Verification API (sub-1s median response, less than 1% false positive rate) is offered independently, alongside a suite of free browser-based verification and IP lookup tools that serve as developer lead magnets. Distribution is product-led growth with self-serve onboarding (free tier of 100 validations/month, no credit card) layered with enterprise field sales for Tier Three custom contracts; pricing ranges from free to $89.99/month for the self-serve fraud tiers and $49.99/month for 50,000 email validations. The company is privately held, bootstrapped, founded in 2024, operates with 1–10 employees, and is GDPR-compliant with EU data residency in AWS Frankfurt and Ireland, but does not yet hold SOC 2 Type II certification.

Name

Trueguard

Legal name

Trueguard OÜ

Website

https://trueguard.io

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

1–10 employees

Short description

Trueguard is a Tallinn-based SaaS fraud detection platform that helps SaaS companies stop fake signups, bot registrations, and free-tier abuse via device fingerprinting, JA4/TLS network analysis, IP intelligence, and a standalone email verification API, sold on a self-serve plus enterprise model.

Ownership category

akta.pro rank

Product category

Cybersecurity Software

NAICS

Investigation and Personal Background Check Services (561611)

akta.pro primary industry

Verification & Risk Signals (Device Fingerprinting, Behavioral Biometrics) (HDADALAJ)

akta.pro secondary industries

Bot Management & Credential Stuffing Protection (FSAMALAG), Fraud Detection & Prevention (payments fraud, account takeover, scams) (FSAGAFAE), Promo Abuse & Loyalty Fraud Prevention (HDADALAF)

Keywords

• Fraud detection platform
• Bot prevention
• Email verification API
• Device fingerprinting
• Risk scoring

Headquarters

HQ city

Tallinn

HQ country

Estonia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Fraud Detection Platform Subscription: Tiered subscription model (Free, Tier One $12.99/mo, Tier Two $89.99/mo, Tier Three custom) providing monthly allocation of Base and Full Verifications. Includes real-time risk scoring, device fingerprinting, IP intelligence, and bot detection.
2. Email Validation API Subscription: Standalone email verification API with Free (100/month), Standard ($49.99/mo for 50,000), and Custom (500,000+ at negotiated rates) tiers. Full check set included on all plans with no tier gating of features.
3. Usage-based Overage: Consumption-based overage charges when monthly allocation exceeded: $0.0015 per Base Verification and $0.003 per Full Verification on Tier One; $0.001 per Base and $0.002 per Full on Tier Two. $0.001 per email validation on Standard plan.
4. Freemium: Free tier with 100 Base + 100 Full Verifications per month for fraud detection, plus 100 email validations per month for API users. No credit card required, runs production endpoint with same accuracy as paid plans.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels6 records

Core offering

Trueguard sells a fraud detection and bot prevention platform that stops fake signups, bot registrations, and free-tier abuse before they hit the customer database. The product is delivered through a single JavaScript snippet and a REST API and combines browser and JA4/JA4T network device fingerprinting, IP intelligence (VPN, proxy, TOR, datacenter, residential proxies), disposable email detection, geolocation, and a real-time risk scoring engine. A separate standalone Email Verification API performs real-time syntax, MX, SMTP, catch-all, role-based, and disposable email checks.

Product overview

Trueguard is a fraud detection platform offering a unified product portfolio centered on preventing fake signups, bot registrations, and free-tier abuse. The core platform combines device fingerprinting, network fingerprinting (JA4/TLS), IP intelligence (VPN/proxy/TOR/datacenter detection), disposable-email signals, and real-time risk scoring into a single risk assessment engine. The flagship Email Verification API provides real-time email validation with syntax, MX, SMTP, disposable, catch-all, role-based, and free-mail detection in one call. The platform includes a suite of free email validation tools (Email Verifier, Syntax Checker, Existence Checker, Catch-All Checker, Temporary Email Checker, Domain Age Checker) and free network tools (IP Location Checker, VPN/Proxy Checker). All services are accessible via REST API with code samples in 9 languages and a JavaScript SDK available via npm.

Differentiator

Problem solved

Functional benefit

Products and services

• Fraud Detection and Bot Prevention Platform
• Email Verification API Standalone REST API that validates email addresses in real time by checking syntax, MX records, SMTP deliverability, disposable domains, catch-all behavior, role-based mailboxes, and free-mail providers. Returns structured JSON with syntax, deliverability, domain, and quality signals. Authentication via X-API-KEY header. Available across Free, Standard, and Custom tiers, with all features included on every plan. Targets developers and businesses that need email list cleaning and signup form validation.
• Email Validation Tools (Free) Suite of free browser-based email validation tools including Email Verifier, Email Syntax Checker, Email Existence Checker, Catch-All Email Checker, and Temporary Email Checker. Each tool checks an address for syntax, deliverability, disposable domain status, and catch-all behavior. Functions as a top-of-funnel lead-generation surface that drives developers into the paid Email Verification API.
• Disposable Emails Database Publicly browseable database of disposable and throwaway email domains (such as Mailinator, Temp-Mail, 10MinuteMail, and Guerrilla Mail) that Trueguard automatically flags during email validation checks. Acts as both a reference resource for developers and a content asset that supports organic search and developer awareness.
• IP Location Checker Free browser-based tool that looks up any IPv4 or IPv6 address to return location, network details (ASN, provider, connection type), and privacy signals such as VPN, proxy, TOR, and datacenter usage. Free lead-generation tool that drives developer awareness of Trueguard's IP intelligence capabilities.
• VPN and Proxy Checker Free browser-based tool that checks any IPv4 or IPv6 address for VPN, proxy, TOR, and datacenter usage and returns full location and network data. Free lead-generation tool that surfaces Trueguard's IP intelligence capabilities to developers.
• Domain Age Checker Free browser-based tool that looks up any domain's registration date, age, and a maturity rating (New, Mature, Established) using WHOIS and registry data. Free lead-generation tool that helps developers evaluate domain signals relevant to fraud risk.
• Temporary Email Checker Free browser-based tool that checks any email address for disposable or temporary email providers such as Mailinator, TempMail, 10MinuteMail, and Guerrilla Mail. Free lead-generation tool tied to Trueguard's disposable email detection capability.
• Email Verifier Free browser-based tool that checks email syntax, MX records, SMTP deliverability, and disposable domain status for any email address. Limited to 10 free checks per day without signup. Functions as a lead magnet that funnels users to the paid Email Verification API.
• Email Syntax Checker Free browser-based tool that validates whether an email address follows RFC 5322 formatting rules before it touches the customer's system. Free lead-generation tool that surfaces Trueguard's email validation capability.
• Email Existence Checker Free browser-based tool that probes the destination mail server to confirm whether a specific mailbox actually exists without sending mail. Free lead-generation tool that demonstrates Trueguard's SMTP-based deliverability check.
• Catch-All Email Checker Free browser-based tool that detects whether a domain accepts mail for every address, a configuration that makes SMTP probing unreliable. Free lead-generation tool that exposes Trueguard's catch-all detection capability.

Quantifiable outcome

• Fraudulent signup detection rate exceeds 90%
• +3 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability3 records

Feature9 records

Partnerships

Nine partnerships are on record, tiered core infrastructure, core and supporting.

• Amazon AWScore infrastructureTechnology or IntegrationServer infrastructure provider for Trueguard platform. AWS Frankfurt (EU) and Ireland regions host Trueguard services per DPA documentation. Core cloud infrastructure partner enabling platform operations.
• ProxycheckcoreTechnology or IntegrationIP information service for VPN, proxy, and datacenter detection. Proxycheck.io provides IP intelligence data from Germany and Finland servers, integrated into Trueguard's network analysis capabilities.
• OpenAIsupportingTechnology or IntegrationAI model service provider for advanced email pattern analysis and temporary email detection. Based in USA. Used for AI-driven algorithms in Full Verification checks.
• AnthropicsupportingTechnology or IntegrationAI model service provider (Claude) for advanced fraud pattern detection. Based in USA. Part of Trueguard's AI-driven verification capabilities.
• Together AIsupportingTechnology or IntegrationAI model service provider for fraud detection capabilities. Based in USA. Complements OpenAI and Anthropic for AI-driven verification.
• AviansupportingTechnology or IntegrationAI model service provider. Based in USA. Contributes to Trueguard's AI-based fraud detection and email analysis capabilities.
• PosthogsupportingTechnology or IntegrationAnalytics service provider (posthog.com) hosting analytics in Frankfurt, EU. Used for product analytics to understand user behavior and improve the platform.
• ElasticsearchcoreTechnology or IntegrationSearch and analytics engine provider (elastic.co) hosted in Stockholm. Powers Trueguard's search capabilities and data analytics for fraud pattern detection.
• StripecoreTechnology or IntegrationPayment processing provider for subscription billing and overage charges. All payment data stored by Stripe per Privacy Policy. Core revenue infrastructure partner.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Verifalia: Email validation service supporting real-time and bulk verification, including disposable and role-based mailbox detection. Comparable to Trueguard's Email Verification API and is named as a competitor in Trueguard's comparison content.
• SEON: Fraud detection and AML platform combining digital footprint analysis, device fingerprinting, and behavioral signals. Overlaps with Trueguard on device/IP intelligence and real-time risk scoring for account signup fraud, primarily in fintech and SaaS.
• ZeroBounce: Email verification and deliverability platform offering bulk and real-time email validation including disposable domain detection. Direct overlap with Trueguard's standalone Email Verification API product, with similar SMB-focused self-serve pricing.
• Abstract API: Suite of APIs including email verification, IP geolocation, and company enrichment. Closely comparable to Trueguard's email verification offering, and explicitly mentioned in Trueguard's SEO comparison pages as a primary competitor.
• MaxMind: IP geolocation and risk intelligence provider used widely for fraud detection, content customization, and compliance. Comparable to Trueguard's IP intelligence and geolocation features, though MaxMind sells data feeds rather than a turnkey fraud product.
• Fingerprint (formerly FingerprintJS): Device fingerprinting specialist offering browser and device identification APIs for fraud prevention and user recognition. Most directly comparable to Trueguard's device fingerprinting and risk-scoring core product, though typically serving larger enterprise customers.
• IPQualityScore: Provides IP reputation, device fingerprinting, email validation, and proxy/VPN detection APIs aimed at fraud prevention. Highly comparable feature set to Trueguard (IP intelligence + email verification + device fingerprinting) at SMB/mid-market price points.

Broad incumbents

• Arkose Labs: Established bot management and account takeover prevention platform serving large enterprises (fintech, gaming, e-commerce). Solves the same signup-fraud problem as Trueguard at a different scale and price band, with deeper enterprise capabilities.
• HUMAN (formerly White Ops): Bot management and fraud detection incumbent protecting ad platforms, applications, and account flows. Overlaps with Trueguard's bot detection and risk scoring for SaaS signup flows, but at a meaningfully larger scale and enterprise customer profile.
• Sift: Digital trust and safety SaaS platform combining identity, device, and behavioral signals for fraud, ATO, and content abuse prevention. Overlaps with Trueguard's device fingerprinting and risk-scoring core, but with deeper machine learning and enterprise integrations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/trueguardio

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Trueguard