Blog
Fraud prevention guides for builders
Practical notes on checkout fraud, signup abuse, bot traffic, IP intelligence, and risk decisions that fit into product workflows.
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RequestGuard GoFilecrypt.cc alternative for clean protected links
A practical guide to replacing container-style link protection with RequestGuard Go for CAPTCHA-gated short links, optional expiry, passwords, and API-created redirects.
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RequestGuard GoHow to hide destination URLs from bots
Learn how CAPTCHA-gated protected links keep destination URLs server-side until verification succeeds, and when to use expiry or password protection.
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RequestGuard GoLinkcrypt vs modern link protection
Compare legacy link protectors with RequestGuard Go for API-first CAPTCHA-gated redirects, optional expiry, and password-protected short links.
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RequestGuard GoPassword protected short links with CAPTCHA
When to combine passwords, CAPTCHA, and expiry for protected short links, and how RequestGuard Go keeps the destination hidden until verification succeeds.
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EngineeringHow to add fraud scoring to an Astro or Cloudflare app
Add server-side fraud scoring to Astro or Cloudflare apps with a RequestGuard assessment before signup, checkout, forms, or API access.
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Fraud preventionAllow, challenge, review, block: a practical fraud decision model
Use a four-state fraud decision model to turn risk signals into product actions your backend can enforce.
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Bot protectionBest reCAPTCHA alternatives for SaaS signup protection
Compare privacy-friendly and risk-based alternatives to reCAPTCHA for SaaS signup, checkout, form, and API abuse protection.
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Bot protectionBot detection vs fraud detection: what SaaS teams actually need
Understand the difference between bot detection and fraud detection, and why SaaS teams often need a decision layer that covers both automation and abuse.
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Fraud preventionHow to build a risk-based signup flow
Design a signup flow that quietly scores risk, challenges suspicious sessions, and protects product value without punishing legitimate users.
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Checkout fraudHow to detect country mismatch fraud at checkout
Use IP, billing, shipping, account, and fulfillment country signals to catch suspicious checkout mismatches before payment or delivery.
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Email riskHow to detect disposable email signups before account creation
Block fake and temporary email signups by scoring email domains, IP context, and signup behavior before creating the account.
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Fraud preventionDevice fingerprinting vs risk scoring: what should developers use?
Understand when device fingerprinting is enough and when developers need a broader fraud risk score with IP, email, domain, and behavior context.
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Email riskEmail domain risk: how to score new, disposable, and suspicious domains
Use email domain risk signals to catch disposable identities, suspicious domains, and fake signup patterns before account creation.
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Fraud preventionFraud prevention API buyer's guide for startups
A practical guide to choosing a fraud prevention API for startup teams that need signup, checkout, IP, email, domain, and bot-risk decisions.
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IP intelligenceIP reputation API: what signals actually matter for fraud prevention?
Understand which IP reputation signals matter for fraud decisions, including connection type, ASN, geolocation, datacenter, and behavior context.
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ComparisonsIPQS alternative for developer-first fraud checks
Use RequestGuard when you want IP, email, domain, device, CAPTCHA, and user-risk checks in one developer-first decision API.
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ComparisonsMaxMind alternative: when you need a decision, not just risk data
Compare raw risk data with application-ready fraud decisions for signup, checkout, API abuse, and review workflows.
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Fraud preventionHow to prevent fake signups without hurting conversion
Use risk-based signup checks to block fake accounts while keeping the path smooth for legitimate users.
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Fraud preventionHow to prevent Stripe card testing before checkout
Stop card-testing bots before they reach Stripe by scoring checkout sessions for IP, email, device, and behavior risk before creating a Checkout Session.
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Fraud preventionHow to protect digital goods from instant fulfillment fraud
Protect software keys, credits, files, API usage, and digital products by scoring checkout risk before payment and fulfillment.
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Fraud preventionHow to stop coupon abuse in SaaS and ecommerce
Prevent repeated coupon abuse by scoring signup, checkout, email, IP, device, and behavior signals before discounts are redeemed.
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Fraud preventionHow to stop free trial abuse in SaaS
Reduce SaaS free trial abuse by scoring email, IP, domain, device, and behavior signals before granting access to product value.
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ComparisonsStripe Radar vs RequestGuard: when to use both
Learn where Stripe Radar and RequestGuard fit together: Radar protects payment authorization, while RequestGuard protects the path to payment.
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IP intelligenceVPN, proxy, Tor, and datacenter IP detection: what to block and what to review
Learn how to use connection-risk signals without overblocking legitimate users on VPNs, proxies, Tor, or hosting networks.
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Fraud preventionHow to stop Stripe checkout fraud
Learn how to stop Stripe Checkout fraud before payment by scoring IP, email, domain, device, and behavior risk with RequestGuard.
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