Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience real numbers from our own analytics — open to see them
–Visitors
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · counted by iTechGuides's own first-party analytics, bots removed, every figure rounded down · how we count

Head-to-head · Bot Detection

Castle Bot Detection vs Vercel

  • Updated Sep 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score Castle Bot Detection #7 in Bot Detection 7.5/10 Free plan · paid from $200/mo Free plan✓ 6 of 6 features Visit Castle
Vercel #8 in Bot Detection 7.1/10 Free plan · paid from $20/user/mo · 14-day trial Free plan✓ 0 of 6 features Visit Vercel

Castle Bot Detection leads on 6 checks, Vercel on 0, and 1 is even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCastle Bot Detection · 7.5/10
  • Free planboth
  • Most featuresCastle Bot Detection · 6 of 6

Castle Bot Detection scores higher on our rubric for bot detection: 7.5 against 7.1 out of 10; our editors rank them #7 and #8.

Castle Bot Detection offers behavioral analysis; Vercel doesn't publish it. Castle Bot Detection offers device fingerprinting; Vercel doesn't publish it. Castle Bot Detection offers javascript sdk; Vercel doesn't publish it. Castle Bot Detection offers real-time scoring api; Vercel doesn't publish it. Castle Bot Detection offers challenge tools; Vercel doesn't publish it.

Castle Bot Detection is the better fit for teams seeking affordable behavioral bot detection. Vercel is the better fit for vercel users seeking deployment with basic security.

  • Castle Bot Detection fits best

    Teams seeking affordable behavioral bot detection

  • Vercel fits best

    Vercel users seeking deployment with basic security

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. It never changes our verdict. How we rank.

Side by side

Feature Castle Bot Detection 7.5/10 Visit ↗ Vercel 7.1/10 Visit ↗
At a glance
Editor score 7.5 7.1
Ranking #7 in Bot Detection #8 in Bot Detection
Best for Teams seeking affordable behavioral bot detection Vercel users seeking deployment with basic security
Pricing model Free plan + paid Free plan + paid
Starting price $200/mo Not published
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Browser extension Cloud
Platforms Web, iOS, Android Web
Support Live chat, Email, Docs Tickets, Community, Docs
Compliance SOC 2, GDPR SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS, SSO/SAML, 2FA
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Castle Bot Detection 6/6 · Vercel 0/6
Behavioral analysis ✓ (best) Not published
Device fingerprinting ✓ (best) Not published
JavaScript SDK ✓ (best) Not published
Real-time scoring API ✓ (best) Not published
Challenge tools ✓ (best) Not published
Account abuse detection ✓ (best) Not published
Specs
Protected requests 40000 requests/mo Not published
Our review
Pros
  • Behavioral, device, IP and email signals in one detection workflow
  • Risk and Filter APIs support allow, challenge or deny decisions
  • Covers web, API, iOS and Android deployments
  • Hobby includes a Web Application Firewall and DDoS mitigation
  • Git, CLI, deploy hook, and REST API deployment options
  • Preview environments, rolling releases, and instant rollback
Cons
  • Free plan limits retention to 3 days, with 3 seats and 1 environment
  • Pro's $200 API budget is shared across requests and IP lookups
  • Enterprise pricing starts at $4,000 per month
  • Published features do not detail dedicated bot detection or bot controls
  • Hobby is positioned for personal, non-commercial use
  • Pro starts at $20 per user per month
Our verdict

Castle Bot Detection analyzes browser interactions, device properties, IP addresses and email signals to identify automated traffic and account abuse. Its Browser SDK collects behavioral and device data, then creates request tokens that a…

Read the review →

Vercel is a cloud platform for building, deploying, hosting, and scaling websites, web applications, and AI agents. It suits developers who want deployment workflows and hosting alongside security controls, rather than buyers whose main…

Read the review →
  1. Castle Bot DetectionBot Detection 7.5Free plan · paid from $200/mo
  2. VercelBot Detection 7.1Free plan · paid from $20/user/mo · 14-day trial

Strengths and trade-offs

  • Castle Bot Detection — where it wins

    • Behavioral, device, IP and email signals in one detection workflow
    • Risk and Filter APIs support allow, challenge or deny decisions
    • Covers web, API, iOS and Android deployments

    Where it doesn't

    • Free plan limits retention to 3 days, with 3 seats and 1 environment
    • Pro's $200 API budget is shared across requests and IP lookups
    • Enterprise pricing starts at $4,000 per month

  • Vercel — where it wins

    • Hobby includes a Web Application Firewall and DDoS mitigation
    • Git, CLI, deploy hook, and REST API deployment options
    • Preview environments, rolling releases, and instant rollback

    Where it doesn't

    • Published features do not detail dedicated bot detection or bot controls
    • Hobby is positioned for personal, non-commercial use
    • Pro starts at $20 per user per month
  • Castle Bot Detection7.5/10 · Free plan · paid from $200/mo

    Behavioral bot detection across web, APIs and mobile, with a free entry plan.

    Visit CastleFull verdict →
  • Vercel7.1/10 · Free plan · paid from $20/user/mo · 14-day trial

    A deployment platform with basic security controls, not a dedicated bot detection tool.

    Visit VercelFull verdict →

More comparisons

All bot detection comparisons → · Full ranking →

Guides on bot detection

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update