
SpecialistEnterprise AI and plagiarism detection for content integrity
hCaptcha records 5,446,045 monthly visits with +18.7% month-over-month growth and Freemium, Free Trial, Contact for Pricing, Free pricing. ShieldLabs records 2,059 monthly visits with +42.4% growth and Freemium pricing.

Fraud and abuse detection that recognizes visitors, bots and risky accounts under any masking
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | hcaptcha.com | shieldlabs.ai |
| Pricing Model | Freemium, Free Trial, Contact for Pricing, Free | Freemium |
| Monthly Visits | 5.45M (5,446,045) | 2.06K (2,059) |
| MoM Traffic Delta | +858.28K (+18.7%) | +613 (+42.4%) |
| Primary Market & Share | 🇺🇸 United States (18%) | 🇺🇸 United States (50.6%) |
| Direct Visits / mo | 3.05M | 634 |
| User Rating | 4.1 | 4.2 |
| Supported Platforms | Website | Website |

Privacy-first bot detection and fraud prevention for the web
Multi-layered detection delivers risk scores and near-zero false positives, with passive and no-CAPTCHA modes.
Stop transaction fraud, account takeovers and multi-accounting with privacy-preserving signals and no PII.
A stronger, toll-free alternative to SMS MFA that reduces fraud while simplifying the user experience.
Build custom risk models with adaptive learning and enrich your own ML using blinded, compliant signals.

Fraud and abuse detection that recognizes visitors, bots and risky accounts under any masking
Recognizes returning visitors across cleared cookies, incognito sessions and changed IP addresses, and links multiple accounts that trace back to the same person or device.
Flags multi-accounting, account sharing, account takeover and impossible travel out of the box, with a confidence value per event and no fraud model training required.
Names the risk signals behind each result: VPN, proxy, Tor, private relay, datacenter, anti-detect browser, incognito mode, JavaScript disabled, OS and timezone mismatch, browser automation and AI bots.
Scores every visit 0–100 and classifies it as trusted, suspicious or dangerous, then aggregates a single traffic-quality score with breakdowns by channel, referrer and UTM campaign.

SpecialistEnterprise AI and plagiarism detection for content integrity

SpecialistAI detector, plagiarism and content-quality checks in one scan
SpecialistAI detector, plagiarism and content-quality checks in one scan
Free / Open-sourceBuild, train, and deploy computer vision for the physical world
Free / Open-sourceBuild, train, and deploy computer vision for the physical world

SpecialistAI-powered CAPTCHA solving API built for scale
SpecialistAI-powered CAPTCHA solving API built for scale

Multi-modal AI detection API that flags synthetic images, text, audio, video and deepfakes
Multi-modal AI detection API that flags synthetic images, text, audio, video and deepfakes
SpecialistOne API for fast, cost-predictable inference on LLMs and multimodal models
SpecialistOne API for fast, cost-predictable inference on LLMs and multimodal models

One universal API for 500+ AI models and 1,000+ agentic tools

SpecialistProxies and web data APIs for scraping and AI pipelines
SpecialistProxies and web data APIs for scraping and AI pipelines

SpecialistApplies AI behavior analysis to network and cloud security, but is designed for enterprise infrastructure rather than web forms.
SpecialistApplies AI behavior analysis to network and cloud security, but is designed for enterprise infrastructure rather than web forms.
SpecialistDelivers endpoint security and data erasure tools, but lacks web-based bot detection and challenge features.
SpecialistDelivers endpoint security and data erasure tools, but lacks web-based bot detection and challenge features.

SpecialistOne API key for 70+ AI models, 1,000+ data APIs and web tools

SpecialistSpecializes in protecting AI models against prompt injection and jailbreaks, rather than standard web traffic bot defense.
SpecialistSpecializes in protecting AI models against prompt injection and jailbreaks, rather than standard web traffic bot defense.